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Sample records for editor femoral component

  1. Femoral revision with impaction allografting and an uncemented femoral component

    DEFF Research Database (Denmark)

    Nickelsen, T N; Erenbjerg, M; Retpen, J B

    2008-01-01

    A technique for uncemented revision of the femoral component which combines impaction allografting and the use of a long-stemmed proximally coated titanium prostheses (Bimetric, Biomet Inc.) is described. The results after a mean follow-up of 112 months are reported. From 1991 to 1995 femoral...... implants 88% had no pain, 10% had slight pain and only 2% had severe pain. Thirty-eight patients had radiographic signs of remodelling of the graft and/or cortical repair. In cases with a successful outcome, the results have been encouraging in relation to clinical performance, regeneration of bone...

  2. Femoral component rotation in patellofemoral joint replacement.

    Science.gov (United States)

    van Jonbergen, Hans-Peter W; Westerbeek, Robin E

    2018-06-01

    Clinical outcomes in patellofemoral joint replacement may be related to femoral component rotation. Assessment of rotational alignment is however difficult as patients with isolated patellofemoral osteoarthritis often have trochlear dysplasia. The use of the medial malleolus as a landmark to guide rotation has been suggested. The purpose of our study was to evaluate this technique with regard to femoral component rotation, and to correlate rotation with clinical outcomes at one-year follow-up. Forty-one knees in 39 patients had patellofemoral joint replacement using the Zimmer Gender-Solutions patellofemoral prosthesis. Intraoperatively, we determined femoral component rotational alignment using an extramedullary rod aimed at the inferior tip of the medial malleolus. Postoperatively, we measured the angle between the femoral component and the anatomical transepicondylar axis using CT. The amount of rotation was correlated with clinical outcomes at one-year follow-up. Forty knees in 38 patients were available for one-year follow-up. Mean femoral component rotation relative to the anatomical transepicondylar axis was 1.4° external rotation (range, -3.8 to 5.7°). We found no statistically significant correlation between femoral component rotation and change from baseline KOOS subscales at one-year follow-up. Our findings show that when using the medial malleolus as a landmark to guide rotation, the femoral component of the patellofemoral prosthesis was oriented in external rotation relative to the anatomical transepicondylar axis in 80% of knees. Our study did not show a relation between the amount of external rotation and clinical outcomes. Level III. Copyright © 2018 Elsevier B.V. All rights reserved.

  3. Posterior Femoral Single Limb Osteotomy for the Removal of Well-Fixed Modular Femoral Neck Components

    Directory of Open Access Journals (Sweden)

    Keith A Fehring

    2017-07-01

    Full Text Available Modular neck femoral components were introduced to optimize femoral neck anteversion, leg length, offset, and stability in total hip arthroplasty. However, concerns have been raised in recent years regarding early failure of these implants due to corrosion, pseudotumor, as well as fracture of the modular neck. Removing modular neck femoral implants is challenging as removal of the modular femoral neck leaves a proximally coated femoral stem level with the proximal bone of the femoral neck. We describe a posterior femoral single limb osteotomy  (posterior cut of an extended trochanteric osteotomy for the removal of a modular neck femoral component.

  4. Femoral component loosening after hip resurfacing arthroplasty

    International Nuclear Information System (INIS)

    Zustin, Jozef; Sauter, Guido; Hahn, Michael; Morlock, Michael M.; Ruether, Wolfgang; Amling, Michael

    2010-01-01

    Before the re-introduction of the current generation of total hip resurfacing arthroplasty, component loosening and osteolysis were of great concern to the orthopaedic community. Early, mid- and long-term clinical results are encouraging, but component loosening still exists. Macroscopic, contact radiographic and histopathological analyses after undecalcified preparation of bone tissue specimens were performed. To investigate the frequency and morphological patterns of the loosening of the femoral component, we analysed a series of 190 retrieved femoral remnants that were revised for aseptic failures. Thirty-five (18.4%) hips were revised for clinical and/or radiographic loosening of the femoral component. Pseudoarthrosis (n = 17; median in situ time: 16 weeks, interquartile range [IQR]: 9 to 34), collapsed osteonecrosis (n = 5; median in situ time: 79 weeks, IQR: 63 to 97), cement-socket debonding (n = 3; median in situ time: 89 weeks, IQR: 54 to 97) and at later follow-up bone-cement loosening (n = 10; median in situ time: 175 weeks; IQR 112 to 198; p =0.005) were distinct patterns of the femoral remnant-implant loosening. Fibrocartilaginous metaplasia of interface bone trabeculae (n = 38; median in situ time: 61 weeks, IQR: 32 to 138) was strongly associated with femoral component loosening (p = 0.009). Both the trabecular hyperosteoidosis (n = 32; median in situ time: 71 weeks, IQR 50 to 129) and excessive intraosseous lymphocyte infiltration (n = 12; median in situ time: 75 weeks, IQR 51 to 98) at the bone-cement interface correlated strongly with fibrocartilaginous metaplasia (p = 0.001 and p = 0.016 respectively) and all three lesions were associated with the female gender (p = 0.021, p = 0.009, and p = 0.051). Femoral component loosening at early follow-up was mostly caused by pathological changes of the femoral remnant bone tissue: pseudoarthrosis and collapsed osteonecrosis. Fibrocartilaginous metaplasia was frequently observed in hips with femoral

  5. Early micromovement of the Articular Surface Replacement (ASR) femoral component

    DEFF Research Database (Denmark)

    Penny, J O; Ding, M; Varmarken, J E

    2012-01-01

    Radiostereometric analysis (RSA) can detect early micromovement in unstable implant designs which are likely subsequently to have a high failure rate. In 2010, the Articular Surface Replacement (ASR) was withdrawn because of a high failure rate. In 19 ASR femoral components, the mean micromovement...

  6. The stability of the femoral component of a minimal invasive total hip replacement system.

    NARCIS (Netherlands)

    Willems, M.M.M.; Kooloos, J.G.M.; Gibbons, P.; Minderhoud, N.; Weernink, T.; Verdonschot, N.J.J.

    2006-01-01

    In this study, the initial stability of the femoral component of a minimal invasive total hip replacement was biomechanically evaluated during simulated normal walking and chair rising. A 20 mm diameter canal was created in the femoral necks of five fresh frozen human cadaver bones and the femoral

  7. Femoral component revision with use of impaction bone-grafting and a cemented polished stem.

    NARCIS (Netherlands)

    Schreurs, B.W.; Arts, J.J.C.; Verdonschot, N.J.J.; Buma, P.; Slooff, T.J.J.H.; Gardeniers, J.W.M.

    2005-01-01

    BACKGROUND: The purpose of this study was to evaluate the clinical and radiographic outcomes of revision of the femoral component of a hip arthroplasty with use of an impaction bone-grafting technique and a cemented polished stem. METHODS: Thirty-three consecutive femoral reconstructions that were

  8. [Ex vivo microCT analysis of possible microfractures of the femoral head during implantation of a cementless hip resurfacing femoral component].

    Science.gov (United States)

    Lerch, M; Olender, G; von der Höh, N; Thorey, F; von Lewinski, G; Meyer-Lindenberg, A; Windhagen, H; Hurschler, C

    2009-01-01

    Microfractures of the femoral head during implantation of the femoral components are suspected to be a cause of fractures at the implant/neck junction which represent a common failure mode in hip resurfacing arthroplasty. Callus formation observed in femoral head retrievals suggests the occurrence of microfractures inside the femoral head, which might be inadvertently caused by the surgeon during implantation. The aim of this biomechanical study was to analyse whether or not the implantation of a cementless femoral component hip resurfacing system causes microfractures in the femoral head. After the preparation of 20 paired human cadaveric femoral heads, the cementless femoral component ESKA Typ BS (ESKA Implants GmbH & Co., Lübeck) was implanted on 9 specimens with an impaction device that generates 4.5 kN impaction force. On 9 specimens the femoral component was implanted by hand. One head was used as a fracture model, 1 specimen served as control without manipulation. The femoral component used for impaction was equipped with hinges to enable its removal without further interfering with the bone stock. Specimens were scanned with a microCT device before and after impaction and the microCT datasets before and after impaction were compared to identify possible microfractures. Twenty strikes per hand or with the impaction device provided sufficient implant seating. Neither the macroscopic examination nor the 2-dimensional microCT analysis revealed any fractures of the femoral heads after impaction. At least macroscopically and in the 2-dimensional microCT analysis, implantation of the cementless hip resurfacing femoral component ESKA Typ BS with 4.5 kN or by hand does not seem to cause fractures of the femoral head. Georg Thieme Verlag KG Stuttgart, New York.

  9. What is the optimal alignment of the tibial and femoral components in knee arthroplasty?

    DEFF Research Database (Denmark)

    Gromov, Kirill; Korchi, Mounim; Thomsen, Morten G

    2014-01-01

    of positioning on survival and functional outcome was considered. Results - Many definitions exist when evaluating placement of femoral and tibial components. Implant alignment plays a role in both survival and functional outcome following primary TKA, as component malalignment can lead to increased failure......Background - Surgeon-dependent factors such as optimal implant alignment are thought to play a significant role in outcome following primary total knee arthroplasty (TKA). Exact definitions and references for optimal alignment are, however, still being debated. This overview of the literature...... describes different definitions of component alignment following primary TKA for (1) tibiofemoral alignment in the AP plane, (2) tibial and femoral component placement in the AP plane, (3) tibial and femoral component placement in the sagittal plane, and (4) rotational alignment of tibial and femoral...

  10. Coupling failure between stem and femoral component in a constrained revision total knee arthroplasty.

    LENUS (Irish Health Repository)

    Butt, Ahsan Javed

    2013-02-01

    Knee revision using constrained implants is associated with greater stresses on the implant and interface surfaces. The present report describes a case of failure of the screw coupling between the stem and the femoral component. The cause of the failure is surmised with outline of the treatment in this case with extensive femoral bone loss. Revision implant stability was augmented with the use of a cemented femoral stem, screw fixation and the metaphyseal sleeve of an S-ROM modular hip system (DePuy international Ltd).

  11. Computer navigation experience in hip resurfacing improves femoral component alignment using a conventional jig.

    Science.gov (United States)

    Morison, Zachary; Mehra, Akshay; Olsen, Michael; Donnelly, Michael; Schemitsch, Emil

    2013-11-01

    The use of computer navigation has been shown to improve the accuracy of femoral component placement compared to conventional instrumentation in hip resurfacing. Whether exposure to computer navigation improves accuracy when the procedure is subsequently performed with conventional instrumentation without navigation has not been explored. We examined whether femoral component alignment utilizing a conventional jig improves following experience with the use of imageless computer navigation for hip resurfacing. Between December 2004 and December 2008, 213 consecutive hip resurfacings were performed by a single surgeon. The first 17 (Cohort 1) and the last 9 (Cohort 2) hip resurfacings were performed using a conventional guidewire alignment jig. In 187 cases, the femoral component was implanted using the imageless computer navigation. Cohorts 1 and 2 were compared for femoral component alignment accuracy. All components in Cohort 2 achieved the position determined by the preoperative plan. The mean deviation of the stem-shaft angle (SSA) from the preoperatively planned target position was 2.2° in Cohort 2 and 5.6° in Cohort 1 (P = 0.01). Four implants in Cohort 1 were positioned at least 10° varus compared to the target SSA position and another four were retroverted. Femoral component placement utilizing conventional instrumentation may be more accurate following experience using imageless computer navigation.

  12. Computer navigation experience in hip resurfacing improves femoral component alignment using a conventional jig

    Directory of Open Access Journals (Sweden)

    Zachary Morison

    2013-01-01

    Full Text Available Background:The use of computer navigation has been shown to improve the accuracy of femoral component placement compared to conventional instrumentation in hip resurfacing. Whether exposure to computer navigation improves accuracy when the procedure is subsequently performed with conventional instrumentation without navigation has not been explored. We examined whether femoral component alignment utilizing a conventional jig improves following experience with the use of imageless computer navigation for hip resurfacing. Materials and Methods:Between December 2004 and December 2008, 213 consecutive hip resurfacings were performed by a single surgeon. The first 17 (Cohort 1 and the last 9 (Cohort 2 hip resurfacings were performed using a conventional guidewire alignment jig. In 187 cases, the femoral component was implanted using the imageless computer navigation. Cohorts 1 and 2 were compared for femoral component alignment accuracy. Results:All components in Cohort 2 achieved the position determined by the preoperative plan. The mean deviation of the stem-shaft angle (SSA from the preoperatively planned target position was 2.2° in Cohort 2 and 5.6° in Cohort 1 ( P = 0.01. Four implants in Cohort 1 were positioned at least 10° varus compared to the target SSA position and another four were retroverted. Conclusions: Femoral component placement utilizing conventional instrumentation may be more accurate following experience using imageless computer navigation.

  13. Availability of Additional Mediolateral Implant Option During Total Knee Arthroplasty Improves Femoral Component Fit Across Ethnicities

    Directory of Open Access Journals (Sweden)

    Gaurav Sharma, MS(Orth

    2017-06-01

    Conclusions:. The shape of the distal part of the femur varies not only among ethnicities but also within ethnic groups, leading to a high prevalence of overhang when only standard prostheses are available. The additional availability of a femoral component with a reduced mediolateral dimension for the same anteroposterior size can reduce overhang and improve component fit across ethnicities.

  14. A preclinical numerical assessment of a polyetheretherketone femoral component in total knee arthroplasty during gait

    NARCIS (Netherlands)

    Ruiter, L. de; Janssen, D.W.; Briscoe, A.; Verdonschot, N.J.

    2017-01-01

    BACKGROUND: Conventional total knee replacement designs show high success rates but in the long term, the stiff metal components may affect bone quality of the distal femur. In this study we introduce an all-polymer total knee replacement device containing a PEEK femoral component on an UHMWPE

  15. A preclinical numerical assessment of a polyetheretherketone femoral component in total knee arthroplasty during gait

    NARCIS (Netherlands)

    de Ruiter, Lennert; Janssen, Dennis W.; Briscoe, Adam; Verdonschot, Nico

    2017-01-01

    Background Conventional total knee replacement designs show high success rates but in the long term, the stiff metal components may affect bone quality of the distal femur. In this study we introduce an all-polymer total knee replacement device containing a PEEK femoral component on an UHMWPE tibial

  16. Flexing and downsizing the femoral component is not detrimental to patellofemoral biomechanics in posterior-referencing cruciate-retaining total knee arthroplasty

    NARCIS (Netherlands)

    Marra, Marco A.; Strzelczak, Marta; Heesterbeek, Petra J.C.; van de Groes, Sebastiaan A.W.; Janssen, Dennis; Koopman, Bart F.J.M.; Verdonschot, Nico; Wymenga, Ate B.

    2018-01-01

    Purpose: When downsizing the femoral component to prevent mediolateral overhang, notching of the anterior femoral cortex may occur, which could be solved by flexing the femoral component. In this study, we investigated the effect of flexion of the femoral component on patellar tendon moment arm,

  17. Modular femoral component for conversion of previous hip surgery in total hip arthroplasty.

    Science.gov (United States)

    Goldstein, Wayne M; Branson, Jill J

    2005-09-01

    The conversion of previous hip surgery to total hip arthroplasty creates a durable construct that is anatomically accurate. Most femoral components with either cemented or cementless design have a fixed tapered proximal shape. The proximal femoral anatomy is changed due to previous hip surgery for fixation of an intertrochanteric hip fracture, proximal femoral osteotomy, or a fibular allograft for avascular necrosis. The modular S-ROM (DePuy Orthopaedics Inc., Warsaw, Ind) hip stem accommodates these issues and independently prepares the proximal and distal portion of the femur. In preparation and implantation, the S-ROM hip stem creates less hoop stresses on potentially fragile stress risers from screws and thin bone. The S-ROM hip stem also prepares a previously distorted anatomy by milling through cortical bone that can occlude the femoral medullar canals and recreate proper femoral anteversion and reduces the risk of intraoperative or postoperative periprosthetic fracture due to the flexible titanium-slotted stem. The S-ROM femoral stem is recommended for challenging total hip reconstructions.

  18. Femoral Component External Rotation Affects Knee Biomechanics: A Computational Model of Posterior-stabilized TKA.

    Science.gov (United States)

    Kia, Mohammad; Wright, Timothy M; Cross, Michael B; Mayman, David J; Pearle, Andrew D; Sculco, Peter K; Westrich, Geoffrey H; Imhauser, Carl W

    2018-01-01

    The correct amount of external rotation of the femoral component during TKA is controversial because the resulting changes in biomechanical knee function associated with varying degrees of femoral component rotation are not well understood. We addressed this question using a computational model, which allowed us to isolate the biomechanical impact of geometric factors including bony shapes, location of ligament insertions, and implant size across three different knees after posterior-stabilized (PS) TKA. Using a computational model of the tibiofemoral joint, we asked: (1) Does external rotation unload the medial collateral ligament (MCL) and what is the effect on lateral collateral ligament tension? (2) How does external rotation alter tibiofemoral contact loads and kinematics? (3) Does 3° external rotation relative to the posterior condylar axis align the component to the surgical transepicondylar axis (sTEA) and what anatomic factors of the femoral condyle explain variations in maximum MCL tension among knees? We incorporated a PS TKA into a previously developed computational knee model applied to three neutrally aligned, nonarthritic, male cadaveric knees. The computational knee model was previously shown to corroborate coupled motions and ligament loading patterns of the native knee through a range of flexion. Implant geometries were virtually installed using hip-to-ankle CT scans through measured resection and anterior referencing surgical techniques. Collateral ligament properties were standardized across each knee model by defining stiffness and slack lengths based on the healthy population. The femoral component was externally rotated from 0° to 9° relative to the posterior condylar axis in 3° increments. At each increment, the knee was flexed under 500 N compression from 0° to 90° simulating an intraoperative examination. The computational model predicted collateral ligament forces, compartmental contact forces, and tibiofemoral internal/external and

  19. Revision of cemented hip arthroplasty using a hydroxyapatite-ceramic-coated femoral component.

    Science.gov (United States)

    Raman, R; Kamath, R P; Parikh, A; Angus, P D

    2005-08-01

    We report the clinical and radiological outcome of 86 revisions of cemented hip arthroplasties using JRI-Furlong hydroxyapatite-ceramic-coated acetabular and femoral components. The acetabular component was revised in 62 hips and the femoral component in all hips. The mean follow-up was 12.6 years and no patient was lost to follow-up. The mean age of the patients was 71.2 years. The mean Harris hip and Oxford scores were 82 (59 to 96) and 23.4 (14 to 40), respectively. The mean Charnley modification of the Merle d'Aubigné and Postel score was 5 (3 to 6) for pain, 4.9 (3 to 6) for movement and 4.4 (3 to 6) for mobility. Migration of the acetabular component was seen in two hips and the mean acetabular inclination was 42.6 degrees. The mean linear polyethylene wear was 0.05 mm/year. The mean subsidence of the femoral component was 1.9 mm and stress shielding was seen in 23 (28%) with bony ingrowth in 76 (94%). Heterotopic ossification was seen in 12 hips (15%). There were three re-revisions, two for deep sepsis and one for recurrent dislocation and there were no re-revisions for aseptic loosening. The mean EuroQol EQ-5D description scores and health thermometer scores were 0.69 (0.51 to 0.89) and 79 (54 to 95), respectively. With an end-point of definite or probable loosening, the probability of survival at 12 years was 93.9% and 95.6% for the acetabular and femoral components, respectively. Overall survival at 12 years, with removal or further revision of either component for any reason as the end-point, was 92.3%. Our study supports the continued use of this arthroplasty and documents the durability of hydroxyapatite-ceramic-coated components.

  20. The 5-year Results of an Oxidized Zirconium Femoral Component for TKA

    Science.gov (United States)

    Innocenti, Massimo; Carulli, Christian; Matassi, Fabrizio; Villano, Marco

    2009-01-01

    Osteolysis secondary to polyethylene wear is one of the major factors limiting long-term performance of TKA. Oxidized zirconium is a new material that combines the strength of a metal with the wear properties of a ceramic. It remains unknown whether implants with a zirconium femoral component can be used safely in TKA. To answer that question, we reviewed, at a minimum of 5 years, the clinical outcome and survivorship of a ceramic-surfaced oxidized zirconium femoral component implanted during 98 primary TKAs between April 2001 and December 2003. Survivorship was 98.7% at 7 years postoperatively. No revision was necessary and only one component failed because of aseptic loosening. Mean Knee Society score improved from 36 to 89. No adverse events were observed clinically or radiologically. These results justify pursuing the use of oxidized zirconium as an alternative bearing surface for a femoral component in TKA. Level of Evidence: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence. PMID:19798541

  1. Femoral component revision with use of impaction bone-grafting and a cemented polished stem. Surgical technique.

    NARCIS (Netherlands)

    Schreurs, B.W.; Arts, J.J.C.; Verdonschot, N.J.J.; Buma, P.; Slooff, T.J.J.H.; Gardeniers, J.W.M.

    2006-01-01

    BACKGROUND: The purpose of this study was to evaluate the clinical and radiographic outcomes of revision of the femoral component of a hip arthroplasty with use of an impaction bone-grafting technique and a cemented polished stem. METHODS: Thirty-three consecutive femoral reconstructions that were

  2. Individualised distal femoral cut improves femoral component placement and limb alignment during total knee replacement in knees with moderate and severe varus deformity.

    Science.gov (United States)

    Palanisami, Dhanasekararaja; Iyyampillai, Geethan; Shanmugam, Sivaraj; Natesan, Rajkumar; S, Rajasekaran

    2016-10-01

    Our aim was to determine the variation in valgus correction angle and the influence of individualised distal femoral cut on femoral component placement and limb alignment during total knee replacement (TKR) in knees with varus deformity. The study was done prospectively in two stages. In the first stage, the valgus correction angle (VCA) was calculated in long-limb radiographs of 227 patients and correlated with pre-operative parameters of femoral bowing, neck-shaft angle and hip-knee-ankle angle. In the second part comprising of 240 knees with varus deformity, 140 (group 1) had the distal femoral cut individualised according to the calculated VCA, while the remaining 100 knees (group 1) were operated with a fixed distal femoral cut of 5°. The outcome of surgery was studied by grouping the knees as varus 15°. Of the 227 limbs analysed in stage I, 70 knees (31 %) had a VCA angle outside 5-7°. Coronal bowing (p shaft angle (p alignment when VCA was individualised in the groups of knees with varus 10-15° (p 0.002) and varus >15° (p 0.002). Valgus correction angle is highly variable and is influenced by femoral bowing, neck-shaft angle and pre-operative deformity. Individualisation of VCA is preferable in patients with moderate and severe varus deformity. Level 2.

  3. Fixation strength of a polyetheretherketone femoral component in total knee arthroplasty.

    Science.gov (United States)

    de Ruiter, Lennert; Janssen, Dennis; Briscoe, Adam; Verdonschot, Nico

    2017-11-01

    Introducing polyetheretherketone (PEEK) polymer as a material for femoral components in total knee arthroplasty (TKA) could potentially lead to a reduction of the cemented fixation strength. A PEEK implant is more likely to deform under high loads, rendering geometrical locking features less effective. Fixation strength may be enhanced by adding more undercuts or specific surface treatments. The aim of this study is to measure the initial fixation strength and investigate the associated failure patterns of three different iterations of PEEK-OPTIMA ® implants compared with a Cobalt-Chromium (CoCr) component. Femoral components were cemented onto trabecular bone analogue foam blocks and preconditioned with 86,400 cycles of compressive loading (2600 N-260 N at 1 Hz). They were then extracted while the force was measured and the initial failure mechanism was recorded. Four groups were compared: CoCr, regular PEEK, PEEK with an enhanced cement-bonding surface and the latter with additional surface primer. The mean pull-off forces for the four groups were 3814 N, 688 N, 2525 N and 2552 N, respectively. The initial failure patterns for groups 1, 3 and 4 were the same; posterior condylar foam fracture and cement-bone debonding. Implants from group 2 failed at the cement-implant interface. This study has shown that a PEEK-OPTIMA ® femoral TKA component with enhanced macro- and microtexture is able to replicate the main failure mechanism of a conventional CoCr femoral implant. The fixation strength is lower than for a CoCr implant, but substantially higher than loads occurring under in-vivo conditions. Copyright © 2017 IPEM. Published by Elsevier Ltd. All rights reserved.

  4. PEEK-OPTIMA? as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study

    OpenAIRE

    Cowie, Raelene M; Briscoe, Adam; Fisher, John; Jennings, Louise M

    2016-01-01

    PEEK-OPTIMA™ (Invibio Ltd, UK) has been considered as an alternative joint arthroplasty bearing material due to its favourable mechanical properties and the biocompatibility of its wear debris. In this study, the potential to use injection moulded PEEK-OPTIMA™ as an alternative to cobalt chrome in the femoral component of a total knee replacement was investigated in terms of its wear performance. Experimental wear simulation of three cobalt chrome and three PEEK-OPTIMA™ femoral components art...

  5. [Clinical evaluation of the ceramic femoral component used for reconstruction of total knee replacement].

    Science.gov (United States)

    Vavrík, P; Landor, I; Denk, F

    2008-12-01

    The study evaluates mid-term results of total knee replacement with a zirconia ceramic (ZrO2) femoral component. The evaluated group comprised 20 knees in 19 patients (4 men and 15 women). In one patient the replacement was performed bilaterally. Two patients had in the contralateral knee the same type of prosthesis with a femoral chrome-cobalt component.The mean age at the time of operation was 65.2 years (range, 38-81 years).The primary indication was 14 times osteoarthritis and 5 times rheumatoid arthritis. The average follow-up period was 6.5 years (range, 2.1-8.5 years). Patients included in the study regardless of age, body mass and the basic diagnosis, agreed with the use of the ceramic femoral component. The evaluation covered a range of motion, mechanical axis, joint stability, pain, swelling, ability to walk on level ground and on stairs, subjective satisfaction (EULAR Knee Chart). Radiograph were assessed at one year intervals in two projections to identify the incidence of radiolucency around the implant. The Kaplan-Meier survival curve was used and compared with the survival curve in identical chrome-cobalt implants. At he final follow-up, 14 knees were evaluated, because 3 patients died without any connection with the implant, in one case the tibial component migrated due to necrosis of the tibial condyle in a patient with RA and two implants had to be revised and replaced due to polyethylene wear. No infection or negative tissue reaction was recorded in the evaluated group. The average flexion range was 109 degrees. All knees were stable and without swelling, in two cases there occurred slight femoropatellar pain. Twelve patients were fully satisfied, 2 patients were satisfied with a certain reservation. The differences in the course of the survival curves of chrome-cobalt and ceramic implants were statistically insignificant. Although the use of zirconia ceramics in vitro reduces the amount of polyethylene wear, the clinical outcomes of total knee

  6. Subsidence of a cementless femoral component influenced by body weight and body mass index.

    Science.gov (United States)

    Stihsen, Christoph; Radl, Roman; Keshmiri, Armin; Rehak, Peter; Windhager, Reinhard

    2012-05-01

    This trial was designed to evaluate the impact of physical characteristics such as body mass index, body weight and height on distal stem migration of a cementless femoral component, as the influence of obesity on the outcome of THA is still debated in literature and conflicting results have been found. In this retrospective cohort study, migration patterns for 102 implants were analysed using the Einzel-Bild-Roentgen-Analyse (EBRA-FCA, femoral component analysis). In all cases the Vision 2000 stem was implanted and combined with the Duraloc acetabular component (DePuy, Warsaw, Indiana). The mean follow-up was 93 months. EBRA-FCA evaluations revealed a mean subsidence of 1.38 mm after two years, 2.06 mm after five and 2.24 mm after seven years. Five stems loosened aseptically. Correlation between increased migration over the whole period and aseptic loosening was highly significant (p < 0.001). Surgical technique had a significant influence on migration and stem stability (p = 0.002) but physical patient characteristics such as body weight over 75 kg and height over 165 cm also significantly influenced stem subsidence towards progressive migration (p = 0.001, p < 0.001). However, a high BMI did not trigger progressive stem migration (p = 0.87). Being of the male gender raised the odds for increased migration (p = 0.03). Physical characteristics such as body weight and height showed significant influence on migration patterns of this cementless femoral component. The operating surgeon should be aware that body weight above 75 kg and height over 165 cm may trigger increased stem migration and the surgeon should aim to fit these prostheses as tightly as possible. However this study demonstrates that a high BMI does not trigger progressive stem migration. Further investigations are needed to confirm our findings.

  7. Influence of bone density on the cement fixation of femoral hip resurfacing components.

    Science.gov (United States)

    Bitsch, Rudi G; Jäger, Sebastian; Lürssen, Marcus; Loidolt, Travis; Schmalzried, Thomas P; Clarius, Michael

    2010-08-01

    In clinical outcome studies, small component sizes, female gender, femoral shape, focal bone defects, bad bone quality, and biomechanics have been associated with failures of resurfacing arthroplasties. We used a well-established experimental setup and human bone specimens to analyze the effects of bone density on cement fixation of femoral hip resurfacing components. Thirty-one fresh frozen femora were prepared for resurfacing using the original instruments. ASR resurfacing prostheses were implanted after dual-energy X-ray densitometer scans. Real-time measurements of pressure and temperature during implantation, analyses of cement penetration, and measurements of micro motions under torque application were performed. The associations of bone density and measurement data were examined calculating regression lines and multiple correlation coefficients; acceptability was tested with ANOVA. We found significant relations between bone density and micro motion, cement penetration, cement mantle thickness, cement pressure, and interface temperature. Mean bone density of the femora was 0.82 +/- 0.13 g/cm(2), t-score was -0.7 +/- 1.0, and mean micro motion between bone and femoral resurfacing component was 17.5 +/- 9.1 microm/Nm. The regression line between bone density and micro motion was equal to -56.7 x bone density + 63.8, R = 0.815 (p density scans are most helpful for patient selection in hip resurfacing, and a better bone quality leads to higher initial component stability. A sophisticated cementing technique is recommended to avoid vigorous impaction and incomplete seating, since increasing bone density also results in higher cement pressures, lower cement penetration, lower interface temperatures, and thicker cement mantles. Copyright 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.

  8. Total knee arthroplasty with an oxidised zirconium femoral component: ten-year survivorship analysis.

    Science.gov (United States)

    Ahmed, I; Salmon, L J; Waller, A; Watanabe, H; Roe, J P; Pinczewski, L A

    2016-01-01

    Oxidised zirconium was introduced as a material for femoral components in total knee arthroplasty (TKA) as an attempt to reduce polyethylene wear. However, the long-term survival of this component is not known. We performed a retrospective review of a prospectively collected database to assess the ten year survival and clinical and radiological outcomes of an oxidised zirconium total knee arthroplasty with the Genesis II prosthesis. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Knee Injury and Osteoarthritis Outcome Score (KOOS) and a patient satisfaction scale were used to assess outcome. A total of 303 consecutive TKAs were performed in 278 patients with a mean age of 68 years (45 to 89). The rate of survival ten years post-operatively as assessed using Kaplan-Meier analysis was 97% (95% confidence interval 94 to 99) with revision for any reason as the endpoint. There were no revisions for loosening, osteolysis or failure of the implant. There was a significant improvement in all components of the WOMAC score at final follow-up (p zirconium TKA gives comparable rates of survival with other implants and excellent functional outcomes ten years post-operatively. Total knee arthroplasty with an oxidised zirconium femoral component gives comparable long-term rates of survival and functional outcomes with conventional implants. ©2016 The British Editorial Society of Bone & Joint Surgery.

  9. Squatting-Related Tibiofemoral Shear Reaction Forces and a Biomechanical Rationale for Femoral Component Loosening

    Directory of Open Access Journals (Sweden)

    Ashvin Thambyah

    2014-01-01

    Full Text Available Previous gait studies on squatting have described a rapid reversal in the direction of the tibiofemoral joint shear reaction force when going into a full weight-bearing deep knee flexion squat. The effects of such a shear reversal have not been considered with regard to the loading demand on knee implants in patients whose activities of daily living require frequent squatting. In this paper, the shear reversal effect is discussed and simulated in a finite element knee implant-bone model, to evaluate the possible biomechanical significance of this effect on femoral component loosening of high flexion implants as reported in the literature. The analysis shows that one of the effects of the shear reversal was a switch between large compressive and large tensile principal strains, from knee extension to flexion, respectively, in the region of the anterior flange of the femoral component. Together with the known material limits of cement and bone, this large mismatch in strains as a function of knee position provides new insight into how and why knee implants may fail in patients who perform frequent squatting.

  10. Large diameter femoral heads impose significant alterations on the strains developed on femoral component and bone: a finite element analysis.

    Science.gov (United States)

    Theodorou, E G; Provatidis, C G; Babis, G C; Georgiou, C S; Megas, P D

    2011-01-01

    Total Hip Arthroplasty aims at fully recreating a functional hip joint. Over the past years modular implant systems have become common practice and are widely used, due to the surgical options they provide. In addition Big Femoral Heads have also been implemented in the process, providing more flexibility for the surgeon. The current study aims at investigating the effects that femoral heads of bigger diameter may impose on the mechanical behavior of the bone-implant assembly. Using data acquired by Computed Tomographies and a Coordinate Measurement Machine, a cadaveric femur and a Profemur-E modular stem were fully digitized, leading to a three dimensional finite element model in ANSYS Workbench. Strains and stresses were then calculated, focusing on areas of clinical interest, based on Gruen zones: the calcar and the corresponding below the greater trochanter area in the proximal femur, the stem tip region and a profile line along linea aspera. The performed finite elements analysis revealed that the use of large diameter heads produces significant changes in strain development within the bone volume, especially in the lateral side. The application of Frost's law in bone remodeling, validated the hypothesis that for all diameters normal bone growth occurs. However, in the calcar area lower strain values were recorded, when comparing with the reference model featuring a 28mm femoral head. Along line aspera and for the stem tip area, higher values were recorded. Finally, stresses calculated on the modular neck revealed increased values, but without reaching the yield strength of the titanium alloy used.

  11. Editor\\'s welcome

    Directory of Open Access Journals (Sweden)

    Hassan Mozaffari-Khosravi

    2016-10-01

    Full Text Available Food and Nutrition Security (FNS has an evolving nature and during the last decades its theoretical, conceptual, structural, practical and programmatic notions evolved significantly and approaches toward food and nutrition have changed drastically. Now, more than ever before, the issue is considered as a fundamental component of sustainable development globally. For a better grasp of the complexities of the field, we need to remind ourselves that “nutrition” as science has a history of more than 100 years while nutrition as a “factor” in “National development” has a history of around fifty years. Considering distinct levels of development status in different contexts, FNS pattern is non-monotonic even in one country. Accordingly, struggling against food and nutrition insecurity is very thought to deal with and multi disciplinary and multi sectorial approaches should be applied. Providing robust evidences to feed policy making processes is one of the main prerequisites for evidence informed policy making and repositioning nutrition as central to sustainable development. This is a professional duty of scholars in different sectors engaging with human development. The journal of Nutrition and Food Security (JNFS as a new journal in the field of food and nutrition security is trying to provide an excellent opportunity for researchers and scholars to publish their original works on approaches, challenges and solutions of food and nutrition hoping to provide data for decision makers to better design interventional programs aiming to eradicate food and nutrition insecurity. Editor in chief H. Mozaffari-Khosravi 22 Sep 2016

  12. CT Assessment of the axial deviation of the femoral and tibial prosthetic components in total knee arthroplasty

    International Nuclear Information System (INIS)

    Rimondi, E.; Molinari, M.; Moio, A.; Busacca, M.; Trentani, F.; Trentani, P.; Tigani, D.; Nigrosoli, M.

    2000-01-01

    CT assessment of the axial deviation of the femoral and tibial prosthetic components in total knee arthroplasty. From January to July 1999, 17 patients, 10 males and 7 females, mean age 66 years (standard deviation plus or minus 4) were examined after total knee arthroplasty. Exclusion criteriawere prosthesis loosening and severe (equal or superior to 7'' varus o valgus deviation. All patients were examined with knee radiography in the standing position completed by axial projection of patella and by CT scanning. It was used a modification of Berger technique and carried out comparative CT scans extended lower limbs and acquisitions perpendicular to the mechanical axis of the knee, from the femoral supracondylar region down to the plane crossing the distal end of the tibial prosthetic component. Reference lines were then drawn electronically on given scanning planes to reckon the axial deviation of the femoral and tibial prosthetic components. Six patients, one female and 5 males with normal rotational values of femoral and tibial prosthetic components presented no clinical symptoms. Eight patients, 4 females and 4 males, with abnormal values presented the following clinical symptoms: medial impingement, (incomplete) dislocation patella, and lateral instability. One female patient with a normal rotational value of femoral prosthetic component and an altered value of tibial prosthetic component presented medial impingement. Finally two patients, one female and one male, were absolutely asymptomatic although the rotational values of the two prosthetic components were beyond the normal range. Total knee arthroplasty is presently a standard treatment for many conditions involving this joint. There are several possible postoperative complications, namely fractures, dislocations (a)septic losening and femoropatellar instability. The latter condition is the most frequent complication among implant failures and is caused by bad orientation of the femoral and tibial

  13. Multicriteria Decision Analysis in Improving Quality of Design in Femoral Component of Knee Prostheses: Influence of Interface Geometry and Material

    Directory of Open Access Journals (Sweden)

    Ali Jahan

    2015-01-01

    Full Text Available Knee prostheses as medical products require careful application of quality and design tool to ensure the best performance. Therefore, quality function deployment (QFD was proposed as a quality tool to systematically integrate consumer’s expectation to perceived needs by medical and design team and to explicitly address the translation of customer needs into engineering characteristics. In this study, full factorial design of experiment (DOE method was accompanied by finite element analysis (FEA to evaluate the effect of inner contours of femoral component on mechanical stability of the implant and biomechanical stresses within the implant components and adjacent bone areas with preservation of the outer contours for standard Co-Cr alloy and a promising functionally graded material (FGM. The ANOVA revealed that the inner shape of femoral component influenced the performance measures in which the angle between the distal and anterior cuts and the angle between the distal and posterior cuts were greatly influential. In the final ranking of alternatives, using multicriteria decision analysis (MCDA, the designs with FGM was ranked first over the Co-Cr femoral component, but the original design with Co-Cr material was not the best choice femoral component, among the top ranked design with the same material.

  14. Comparison of radiographic and radionuclide hip arthrography in determination of femoral component loosening of hip arthroplasties

    International Nuclear Information System (INIS)

    Capello, W.N.; Uri, B.G.; Wellman, H.N.; Robb, J.A.; Stiver, P.L.

    1985-01-01

    Radiographic examination of a patient experiencing pain following total hip arthroplasty is an important step in the systematic approach to evaluating component loosening, even though the information yielded is often equivocal and nondiagnostic in assessing component loosening. The radiographic criteria for loosening are especially difficult to assess following revision surgery, for radiolucent lines frequently exist at the bone-cement interface immediately following implantation. The advent of noncemented hip prostheses poses another problem: the routinely noted disruption of bone-cement of prosthesis-cement interfaces is not present with uncemented prostheses. As the criteria for loosening of the noncemented prostheses are still evolving, plain radiographic examination is frequently nondiagnostic. Femoral component loosening is difficult to detect with standard contrast arthrography because the bone, metal, surrounding radiopaque cement and contrast agents have similar or identical radiographic appearances. In contrast arthrography, if the prosthesis is loose the injected agent opacifies the radiolucent zone encircling the prosthesis or cement mangle. Because of the similarity in the appearances of these agents and the surrounding structures on x-ray films, interpretation is difficult. The inclusion of subtraction techniques in routine contrast arthrography has improved its accuracy; however, these techniques require special equipment and demand precise patient positioning. The purpose of this study is to introduce a new form of hip arthrography using a radionuclide agent in place of the contrast agent. A comparison of the results using these two techniques is presented

  15. PEEK-OPTIMA™ as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study.

    Science.gov (United States)

    Cowie, Raelene M; Briscoe, Adam; Fisher, John; Jennings, Louise M

    2016-11-01

    PEEK-OPTIMA ™ (Invibio Ltd, UK) has been considered as an alternative joint arthroplasty bearing material due to its favourable mechanical properties and the biocompatibility of its wear debris. In this study, the potential to use injection moulded PEEK-OPTIMA ™ as an alternative to cobalt chrome in the femoral component of a total knee replacement was investigated in terms of its wear performance. Experimental wear simulation of three cobalt chrome and three PEEK-OPTIMA ™ femoral components articulating against all-polyethylene tibial components was carried out under two kinematic conditions: 3 million cycles under intermediate kinematics (maximum anterior-posterior displacement of 5 mm) followed by 3 million cycles under high kinematic conditions (anterior-posterior displacement 10 mm). The wear of the GUR1020 ultra-high-molecular-weight polyethylene tibial components was assessed by gravimetric analysis; for both material combinations under each kinematic condition, the mean wear rates were low, that is, below 5 mm 3 /million cycles. Specifically, under intermediate kinematic conditions, the wear rate of the ultra-high-molecular-weight polyethylene tibial components was 0.96 ± 2.26 mm 3 /million cycles and 2.44 ± 0.78 mm 3 /million cycle against cobalt chrome and PEEK-OPTIMA ™ implants, respectively (p = 0.06); under high kinematic conditions, the wear rates were 2.23 ± 1.85 mm 3 /million cycles and 4.44 ± 2.35 mm 3 /million cycles, respectively (p = 0.03). Following wear simulation, scratches were apparent on the surface of the PEEK-OPTIMA ™ femoral components. The surface topography of the femoral components was assessed using contacting profilometry and showed a statistically significant increase in measured surface roughness of the PEEK-OPTIMA ™ femoral components compared to the cobalt chrome implants. However, this did not appear to influence the wear rate, which remained linear over the duration of

  16. PEEK-OPTIMA™ as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study

    Science.gov (United States)

    Cowie, Raelene M; Briscoe, Adam; Fisher, John; Jennings, Louise M

    2016-01-01

    PEEK-OPTIMA™ (Invibio Ltd, UK) has been considered as an alternative joint arthroplasty bearing material due to its favourable mechanical properties and the biocompatibility of its wear debris. In this study, the potential to use injection moulded PEEK-OPTIMA™ as an alternative to cobalt chrome in the femoral component of a total knee replacement was investigated in terms of its wear performance. Experimental wear simulation of three cobalt chrome and three PEEK-OPTIMA™ femoral components articulating against all-polyethylene tibial components was carried out under two kinematic conditions: 3 million cycles under intermediate kinematics (maximum anterior-posterior displacement of 5 mm) followed by 3 million cycles under high kinematic conditions (anterior-posterior displacement 10 mm). The wear of the GUR1020 ultra-high-molecular-weight polyethylene tibial components was assessed by gravimetric analysis; for both material combinations under each kinematic condition, the mean wear rates were low, that is, below 5 mm3/million cycles. Specifically, under intermediate kinematic conditions, the wear rate of the ultra-high-molecular-weight polyethylene tibial components was 0.96 ± 2.26 mm3/million cycles and 2.44 ± 0.78 mm3/million cycle against cobalt chrome and PEEK-OPTIMA™ implants, respectively (p = 0.06); under high kinematic conditions, the wear rates were 2.23 ± 1.85 mm3/million cycles and 4.44 ± 2.35 mm3/million cycles, respectively (p = 0.03). Following wear simulation, scratches were apparent on the surface of the PEEK-OPTIMA™ femoral components. The surface topography of the femoral components was assessed using contacting profilometry and showed a statistically significant increase in measured surface roughness of the PEEK-OPTIMA™ femoral components compared to the cobalt chrome implants. However, this did not appear to influence the wear rate, which remained linear over the duration of the study. These

  17. Flexing and downsizing the femoral component is not detrimental to patellofemoral biomechanics in posterior-referencing cruciate-retaining total knee arthroplasty.

    Science.gov (United States)

    Marra, Marco A; Strzelczak, Marta; Heesterbeek, Petra J C; van de Groes, Sebastiaan A W; Janssen, Dennis; Koopman, Bart F J M; Verdonschot, Nico; Wymenga, Ate B

    2018-03-20

    When downsizing the femoral component to prevent mediolateral overhang, notching of the anterior femoral cortex may occur, which could be solved by flexing the femoral component. In this study, we investigated the effect of flexion of the femoral component on patellar tendon moment arm, patellofemoral forces and kinematics in posterior-referencing CR-TKA. Our hypothesis was that flexion of the femoral component increases the patellar tendon moment arm, reduces the patellofemoral forces and provides stable kinematics. A validated musculoskeletal model of CR-TKA was used. The flexion of the femoral component was increased in four steps (0°, 3°, 6°, 9°) using posterior referencing, and different alignments were analysed in combination with three implant sizes (3, 4, 5). A chair-rising trial was analysed using the model, while simultaneously estimating quadriceps muscle force, patellofemoral contact force, tibiofemoral and patellofemoral kinematics. Compared to the reference case (size 4 and 0° flexion), for every 3° of increase in flexion of the femoral component the patellar tendon moment arm increased by 1% at knee extension. The peak quadriceps muscle force and patellofemoral contact force decreased by 2%, the patella shifted 0.8 mm more anteriorly and the remaining kinematics remained stable, with knee flexion. With the smaller size, the patellar tendon moment arm decreased by 6%, the quadriceps muscle force and patellofemoral contact force increased by 8 and 12%, and the patellar shifted 5 mm more posteriorly. Opposite trends were found with the bigger size. Flexing the femoral component with posterior referencing reduced the patellofemoral contact forces during a simulated chair-rising trial with a patient-specific musculoskeletal model of CR-TKA. There seems to be little risk when flexing and downsizing the femoral component, compared to when using a bigger size and neutral alignment. These findings provide relevant information to surgeons who wish to

  18. Good performance of a titanium femoral component in cementless hip arthroplasty in younger patients: 97 arthroplasties followed for 5-11 years

    DEFF Research Database (Denmark)

    Jacobsen, Steffen; Jensen, Frank Krieger; Poulsen, Klaus

    2003-01-01

    We performed 97 uncemented primary total hip arthroplasties in 80 patients having an average age of 50 years. The femoral implant was a titanium stem with a proximal circumferential plasma spray-coating. Three different acetabular components were used: a threaded and partly porous-coated design i...... titanium femoral component with a circumferential porous coating performed well in these patients, most of whom were young. As reported previously, aseptic loosening of threaded acetabular components was common....

  19. Prevalence and clinical significance of chondromalacia isolated to the anterior margin of the lateral femoral condyle as a component of patellofemoral disease: observations at MR imaging.

    LENUS (Irish Health Repository)

    Chan, V O

    2013-08-01

    To determine the prevalence of chondromalacia isolated to the anterior margin of the lateral femoral condyle as a component of patellofemoral disease in patients with anterior knee pain and to correlate it with patient demographics, patellar shape, and patellofemoral alignment.

  20. Bone-femoral component interface gap after sagittal mechanical axis alignment is filled with new bone after cementless total knee arthroplasty.

    Science.gov (United States)

    Kuriyama, Shinichi; Hyakuna, Katsufumi; Inoue, Satoshi; Kawai, Yasutsugu; Tamaki, Yasuyuki; Ito, Hiromu; Matsuda, Shuichi

    2018-05-01

    This study retrospectively evaluated the fate of mismatch between an uncemented femoral component and each femoral cut surface (i.e., wedge-shaped gap) relative to sagittal mechanical alignment in total knee arthroplasty (TKA). Primary TKA was performed on 99 consecutive knees. The femoral components were aligned to the sagittal mechanical axis with CT-based navigation. All patients were assessed with postoperative true lateral radiographs. Bone-side surfaces of the uncemented femoral component were divided into five zones: anterior flange, anterior chamfer, posterior chamfer, posterior part, and distal part, which were defined as zones 1 to 5, respectively. Bone filling of wedge-shaped gaps in each zone was evaluated after 1 year. Femoral anterior notching did not occur. However, wedge-shaped gaps were observed in at least one zone in 23 of 99 knees (23%), most frequently in zone 5 (18%). There were 9 and 7 gaps in zones 1 and 2, respectively. The femoral component showed malpositioning of approximately 3° of flexion in cases with wedge-shaped gaps in zones 2 and/or 5. After one year, 67% (6/9) of zone 1, 100% (7/7) of zone 2, and 94% (17/18) of zone 5 wedge-shaped gaps were filled in with new bone. Femoral alignment relative to sagittal mechanical axis caused wedge-shaped gaps due to unstable anterior bone cutting through hard bone, but the small gaps were not clinically significant and filled in within one year. Sagittal setting of the femoral component should aim for the anatomical axis rather than the mechanical axis. IV.

  1. From Editor

    OpenAIRE

    Ugur Demiray

    2013-01-01

    Dear TOJDE Readers, Welcome to the Volume 14 Number: 2 of TOJDE! In this issue, 3 Notes for Editor, 2 Book Reviews and 21 articles of 40 authors from 14 different countries around the world have been published. These published articles are arrived to the TOJDE from Argentina, Australia, Bosnia Hersek, Egypt, India, Malaysia, Romania, Saudi Arabia, Tanzania, Thailand, Turkey, United Arab Emirate and USA. The 1st Notes for Editor is arrived from USA and written by Gail D. CARUTH,...

  2. Removal of well-fixed components in femoral revision arthroplasty with controlled segmentation of the proximal femur.

    Science.gov (United States)

    Megas, Panagiotis; Georgiou, Christos S; Panagopoulos, Andreas; Kouzelis, Antonis

    2014-12-31

    The transfemoral and the extended trochanteric osteotomies are the most common osteotomies used in femoral revision, both when proximal or diaphyseal fixation of the new component has been decided. We present an alternative approach to the trochanteric osteotomies, most frequently used with distally fixated stems, to overcome their shortcomings of osteotomy migration and nonunion, but, most of all, the uncontrollable fragmentation of the femur. The procedure includes a complete circular femoral osteotomy just below the stem tip to prevent distal fracture propagation and a subsequent preplanned segmentation of the proximal femur for better exposure and fast removal of the old prosthesis. The bone fragments are reattached with cerclage wires to the revision prosthesis, which is safely anchored distally. A modified posterolateral approach is used, as the preservation of the continuity of the abductors, the greater trochanter, and the vastus lateralis is a prerequisite. Between 2006 and 2012, 47 stems (33 women, 14 men, mean age 68 years, range 39-88 years) were revised using this technique. They were 12 (26%) stable and 35 (74%) loose prostheses and were all revised to tapered, fluted, grit-blasted stems. No fracture of the trochanters or the distal femur occurred intraoperatively. Mean follow-up was 28 months (range 6-70 months). No case of trochanteric migration or nonunion of the osteotomies was recorded. Restoration of the preexisting bone defects occurred in 83% of the patients. Three patients required repeat revision due to dislocation and one due to a postoperative periprosthetic fracture. None of the failures was attributed to the procedure itself. This new osteotomy technique may seem aggressive at first, but, at least in our hands, has effectively increased the speed of the femoral revision, particularly for the most difficult well-fixed components, but not at the expense of safety.

  3. Fracture of the femoral component after a lightning strike injury: A case report

    Directory of Open Access Journals (Sweden)

    Xavier Lizano-Díez

    2017-01-01

    Full Text Available A fracture of the stem in a total hip arthroplasty (THA is an uncommon complication. We report a case of femoral stem fracture in a 55-year-old male patient after a lightning strike. A revision was conducted using a Wagner osteotomy and a revision prosthesis. Dall-Milles cerclages were used to close the osteotomy. The postoperative evolution was satisfactory, with an immediate partial weight bearing, consolidation of the osteotomy after three months and return to daily activity without pain.

  4. Is There an Inherent Risk to Damage the Popliteus Tendon by Femoral Component With Inbuilt External Rotation? A Pilot Study in Indian Knees.

    Science.gov (United States)

    Chouhan, Dervendra Kumar; Dhillon, Mandeep S

    2016-02-01

    Femoral components with inbuilt rotation require thicker flexion resection of the lateral femoral condyle and could have a potential risk of damaging the popliteus tendon, especially in the smaller Asian knees. We prospectively evaluated 10 patients with bilateral varus osteoarthritis knee to size the cuts and their location in relation to the popliteus tendon. Two different types of implant were used on either side; one side requires resection in 3° external rotation (group A) and the other side requires a femoral component with inbuilt external rotation (group B). We observed the incidence of injury to the popliteus tendon and distance between flexion cut to its attachment over the lateral femoral condyle between both groups. We had popliteus tendon injury in 3 knees all from group B. Risk of damaging the popliteus tendon was found higher in group B, as the distance between flexion cut to popliteus tendon attachment was significantly low. Femoral component with inbuilt external rotation has more risk of injuring the popliteus tendon because flexion cut takes out more bone from the lateral femoral condyle. Copyright © 2015 Elsevier Inc. All rights reserved.

  5. ISTP CDF Skeleton Editor

    Science.gov (United States)

    Chimiak, Reine; Harris, Bernard; Williams, Phillip

    2013-01-01

    Basic Common Data Format (CDF) tools (e.g., cdfedit) provide no specific support for creating International Solar-Terrestrial Physics/Space Physics Data Facility (ISTP/SPDF) standard files. While it is possible for someone who is familiar with the ISTP/SPDF metadata guidelines to create compliant files using just the basic tools, the process is error-prone and unreasonable for someone without ISTP/SPDF expertise. The key problem is the lack of a tool with specific support for creating files that comply with the ISTP/SPDF guidelines. There are basic CDF tools such as cdfedit and skeletoncdf for creating CDF files, but these have no specific support for creating ISTP/ SPDF compliant files. The SPDF ISTP CDF skeleton editor is a cross-platform, Java-based GUI editor program that allows someone with only a basic understanding of the ISTP/SPDF guidelines to easily create compliant files. The editor is a simple graphical user interface (GUI) application for creating and editing ISTP/SPDF guideline-compliant skeleton CDF files. The SPDF ISTP CDF skeleton editor consists of the following components: A swing-based Java GUI program, JavaHelp-based manual/ tutorial, Image/Icon files, and HTML Web page for distribution. The editor is available as a traditional Java desktop application as well as a Java Network Launching Protocol (JNLP) application. Once started, it functions like a typical Java GUI file editor application for creating/editing application-unique files.

  6. Confirming Sterility of an Autoclaved Infected Femoral Component for Use in an Articulated Antibiotic Knee Spacer: A Pilot Study.

    Science.gov (United States)

    Lyons, Steven T; Wright, Coy A; Krute, Christina N; Rivera, Frances E; Carroll, Ronan K; Shaw, Lindsey N

    2016-01-01

    Antibiotic spacer designs have proven effective at eradicating infection during a two-stage revision arthroplasty. Temporary reuse of the steam-sterilized femoral component and a new all poly tibia component has been described as an effective articulating antibiotic spacer, but sterility concerns persist. Six explanted cobalt chrome femurs from patients with grossly infected TKA's and six stock femurs inoculated with different bacterial species were confirmed to be bacteria-free after autoclaving under a standard gravity-displacement cycle. The effect of steam sterilization on cobalt chrome fragments contaminated with MRSA biofilm was analyzed microscopically to quantify remaining biofilm. The autoclave significantly reduced the biofilm burden on the cobalt chrome fragments. This study confirmed sterility of the femur after a standard gravity-displacement cycle (132°C, 27 PSIG, 10 minutes). Copyright © 2016 Elsevier Inc. All rights reserved.

  7. From Editor

    OpenAIRE

    Ugur DEmiray

    2011-01-01

    Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 12, Number: 1. In this issue it is published 4 notes for Editor, 13 articles, 2 book reviews. And this time, 34 authors from 11 different countries are placed. These published articles are from Cayman Islands, Germany, Greece, India, Iran, Malaysia, Pakistan, Turkey, USA and Zimbabwe.The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on “SNAPP:Graphing Student Interactio...

  8. From Editor

    OpenAIRE

    Ugur DEMIRAY

    2012-01-01

    Turkish Online Journal of Distance Education-TOJDE July 2012 ISSN 1302-6488 Volume: 13 Number: 3 from EditorDear TOJDE Readers,Welcome to the Volume 13 Number: 3 of TOJDE! In this issue, 2 Notes for Editor and 26 articles of 51 authors from 14 different countries around the world have been published. These published articles are from, Algeria, Australia, Bengaldesh, Greece, India, Iran, Malaysia, Mariutius, Nigeria, Oman, Spain, Turkey, USA and Zimbabwe.First all, you should know that if a su...

  9. From Editor

    OpenAIRE

    Ugur Demiray

    2012-01-01

    Dear TOJDE Readers,Welcome to the Volume 13 Number: 2 of TOJDE! In this issue, 7 notes for Editor and 22 articles one book review of 57 authors from 12 different countries have been published. These published articles are from, Barbados, Ethiopia, India, Indonesia, Iran, Nigeria, Pakistan, Russia, Saudi Arabia, Turkey, USA and Zimbabwe.In general, around 13 articles and 4 notes for editors have been published in TOJDE so far. I would like to explain, why this time 22 articles and 8 submission...

  10. From Editor

    OpenAIRE

    Ugur Demiray

    2010-01-01

    Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now again after 3 months as Volume 11, Number: 2. This is the second issue of the year 2010. In this issue it is published four Notes for Editor, fourteen articles and four book reviews. And this time, 37 authors from 8 different countries are placed. These published articles are from Greece, Indonesia, Iran, Malaysia, Pakistan, Saudi Arabia, USA and Turkey.Again Kevin YEE & Jace HARGIS have sent a good and short note to editor ...

  11. Editor's Note

    African Journals Online (AJOL)

    On another note: the editor and the editorial team acknowledge the financial support of the Carnegie Corporation of New York through the University of Ghana Building A New Generation of Academics in Africa (BANGA-Africa) Project. We also use this platform to express our gratitude for the support of various stakeholders, ...

  12. DNAAlignEditor: DNA alignment editor tool

    Directory of Open Access Journals (Sweden)

    Guill Katherine E

    2008-03-01

    Full Text Available Abstract Background With advances in DNA re-sequencing methods and Next-Generation parallel sequencing approaches, there has been a large increase in genomic efforts to define and analyze the sequence variability present among individuals within a species. For very polymorphic species such as maize, this has lead to a need for intuitive, user-friendly software that aids the biologist, often with naïve programming capability, in tracking, editing, displaying, and exporting multiple individual sequence alignments. To fill this need we have developed a novel DNA alignment editor. Results We have generated a nucleotide sequence alignment editor (DNAAlignEditor that provides an intuitive, user-friendly interface for manual editing of multiple sequence alignments with functions for input, editing, and output of sequence alignments. The color-coding of nucleotide identity and the display of associated quality score aids in the manual alignment editing process. DNAAlignEditor works as a client/server tool having two main components: a relational database that collects the processed alignments and a user interface connected to database through universal data access connectivity drivers. DNAAlignEditor can be used either as a stand-alone application or as a network application with multiple users concurrently connected. Conclusion We anticipate that this software will be of general interest to biologists and population genetics in editing DNA sequence alignments and analyzing natural sequence variation regardless of species, and will be particularly useful for manual alignment editing of sequences in species with high levels of polymorphism.

  13. A novel method to measure femoral component migration by computed tomography: a cadaver study.

    Science.gov (United States)

    Boettner, Friedrich; Sculco, Peter; Lipman, Joseph; Renner, Lisa; Faschingbauer, Martin

    2016-06-01

    Radiostereometric analysis (RSA) is the most accurate technique to measure implant migration. However, it requires special equipment, technical expertise and analysis software and has not gained wide acceptance. The current paper analyzes a novel method to measure implant migration utilizing widely available computer tomography (CT). Three uncemented total hip replacements were performed in three human cadavers and six tantalum beads were inserted into the femoral bone similar to RSA. Six different 28 mm heads (-3, 0, 2.5, 5.0, 7.5 and 10 mm) were added to simulate five reproducible translations (maximum total point migration) of the center of the head. Implant migration was measured in a 3-D analysis software (Geomagic Studio 7). Repeat manual reconstructions of the center of the head were performed by two investigators to determine repeatability and accuracy. The accuracy of measurements between the centers of two head sizes was 0.11 mm with a CI 95 % of 0.22 mm. The intra-observer repeatability was 0.13 mm (CI 95 % 0.25 mm). The interrater-reliability was 0.943. CT based measurement of head displacement in a cadaver model were highly accurate and reproducible.

  14. Internal-external malalignment of the femoral component in kinematically aligned total knee arthroplasty increases tibial force imbalance but does not change laxities of the tibiofemoral joint.

    Science.gov (United States)

    Riley, Jeremy; Roth, Joshua D; Howell, Stephen M; Hull, Maury L

    2018-06-01

    The purposes of this study were to quantify the increase in tibial force imbalance (i.e. magnitude of difference between medial and lateral tibial forces) and changes in laxities caused by  2° and 4° of internal-external (I-E) malalignment of the femoral component in kinematically aligned total knee arthroplasty. Because I-E malalignment would introduce the greatest changes to the articular surfaces near 90° of flexion, the hypotheses were that the tibial force imbalance would be significantly increased near 90° flexion and that primarily varus-valgus laxity would be affected near 90° flexion. Kinematically aligned TKA was performed on ten human cadaveric knee specimens using disposable manual instruments without soft tissue release. One 3D-printed reference femoral component, with unmodified geometry, was aligned to restore the native distal and posterior femoral joint lines. Four 3D-printed femoral components, with modified geometry, introduced I-E malalignments of 2° and 4° from the reference component. Medial and lateral tibial forces were measured from 0° to 120° flexion using a custom tibial force sensor. Bidirectional laxities in four degrees of freedom were measured from 0° to 120° flexion using a custom load application system. Tibial force imbalance increased the greatest at 60° flexion where a regression analysis against the degree of I-E malalignment yielded sensitivities (i.e. slopes) of 30 N/° (medial tibial force > lateral tibial force) and 10 N/° (lateral tibial force > medial tibial force) for internal and external malalignments, respectively. Valgus laxity increased significantly with the 4° external component with the greatest increase of 1.5° occurring at 90° flexion (p < 0.0001). With the tibial component correctly aligned, I-E malalignment of the femoral component caused significant increases in tibial force imbalance. Minimizing I-E malalignment lowers the increase in the tibial force imbalance. By keeping

  15. Effect of medial–lateral malpositioning of the femoral component in total knee arthroplasty on anterior knee pain at greater than 8 years of follow-up

    NARCIS (Netherlands)

    van de Groes, S.A.W.; Koëter, S.; De Waal Malefijt, M.C.; Verdonschot, Nicolaas Jacobus Joseph

    2014-01-01

    Background The trochlea is often medialized after total knee arthroplasty (TKA) resulting in abnormal patellar tracking, which may lead to anterior knee pain. However, due to the difference in shape of the natural trochlea and the patellar groove of the femoral component, a medialization of the

  16. Prevalence and clinical significance of chondromalacia isolated to the anterior margin of the lateral femoral condyle as a component of patellofemoral disease: observations at MR imaging.

    Science.gov (United States)

    Chan, V O; Moran, D E; Mwangi, I; Eustace, S J

    2013-08-01

    To determine the prevalence of chondromalacia isolated to the anterior margin of the lateral femoral condyle as a component of patellofemoral disease in patients with anterior knee pain and to correlate it with patient demographics, patellar shape, and patellofemoral alignment. Retrospective study over a 1-year period reviewing the MR knee examinations of all patients who were referred for assessment of anterior knee pain. Only patients with isolated lateral patellofemoral disease were included. Age, gender, distribution of lateral patellofemoral chondromalacia, and grade of cartilaginous defects were documented for each patient. Correlation between the distribution of lateral patellofemoral chondromalacia and patient demographics, patellar shape, and indices of patellar alignment (femoral sulcus angle and modified Q angle) was then ascertained. There were 50 patients (22 males, 28 females) with anterior knee pain and isolated patellofemoral disease. The majority of the patients (78 %) had co-existent disease with grade 1 chondromalacia. No significant correlation was found between patients with chondromalacia isolated to the anterior margin of the lateral femoral condyle and age, gender, patellar shape, or modified Q angle (p > 0.05). However, patients with chondromalacia isolated to the anterior margin of the lateral femoral condyle had a shallower femoral sulcus angle (mean 141.8°) compared to the patients with lateral patellar facet disease (mean 133.8°) (p = 0.002). A small percentage of patients with anterior knee pain have chondromalacia isolated to the anterior margin of the lateral femoral condyle. This was associated with a shallower femoral sulcus angle.

  17. Increases in tibial force imbalance but not changes in tibiofemoral laxities are caused by varus-valgus malalignment of the femoral component in kinematically aligned TKA.

    Science.gov (United States)

    Riley, Jeremy; Roth, Joshua D; Howell, Stephen M; Hull, Maury L

    2018-01-29

    The purposes of this study were to quantify the increase in tibial force imbalance (i.e. magnitude of difference between medial and lateral tibial forces) and changes in laxities caused by 2° and 4° of varus-valgus (V-V) malalignment of the femoral component in kinematically aligned total knee arthroplasty (TKA) and use the results to detemine sensitivities to errors in making the distal femoral resections. Because V-V malalignment would introduce the greatest changes in the alignment of the articular surfaces at 0° flexion, the hypotheses were that the greatest increases in tibial force imbalance would occur at 0° flexion, that primarily V-V laxity would significantly change at this flexion angle, and that the tibial force imbalance would increase and laxities would change in proportion to the degree of V-V malalignment. Kinematically aligned TKA was performed on ten human cadaveric knee specimens using disposable manual instruments without soft tissue release. One 3D-printed reference femoral component, with unmodified geometry, was aligned to restore the native distal and posterior femoral joint lines. Four 3D-printed femoral components, with modified geometry, introduced V-V malalignments of 2° and 4° from the reference component. Medial and lateral tibial forces were measured during passive knee flexion-extension between 0° to 120° using a custom tibial force sensor. Eight laxities were measured from 0° to 120° flexion using a six degree-of-freedom load application system. With the tibial component kinematically aligned, the increase in the tibial force imbalance from that of the reference component at 0° of flexion was sensitive to the degree of V-V malalignment of the femoral component. Sensitivities were 54 N/deg (medial tibial force increasing > lateral tibial force) (p  medial tibial force) (p imbalance to increase significantly, whereas the laxities were relatively unaffected. Because tibial force imbalance has the potential to

  18. Risk factors for post-operative periprosthetic fractures following primary total hip arthroplasty with a proximally coated double-tapered cementless femoral component

    DEFF Research Database (Denmark)

    Gromov, K; Bersang, A; Nielsen, C S

    2017-01-01

    ratio were recorded post-operatively. Periprosthetic fractures were identified and classified according to the Vancouver classification. Regression analysis was performed to identify risk factors for early periprosthetic fracture. RESULTS: The mean follow-up was 713 days (1 to 2058). A total of 48......AIMS: The aim of this study was to identify patient- and surgery-related risk factors for sustaining an early periprosthetic fracture following primary total hip arthroplasty (THA) performed using a double-tapered cementless femoral component (Bi-Metric femoral stem; Biomet Inc., Warsaw, Indiana...... periprosthetic fractures (3.0%) were identified during the follow-up and median time until fracture was 16 days, (interquartile range 10 to 31.5). Patients with femoral Dorr type C had a 5.2 times increased risk of post-operative periprosthetic fracture compared with type B, while female patients had a near...

  19. From Editor

    OpenAIRE

    Ugur Demiray

    2009-01-01

    TOJDE is appeared on your screen now as Volume 10, Number: 1. This is the first issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published four article are in “Notes for Editor Sectio”, 13 articles, 2 reviews. And this time, 26 authors from twelwe different countries are placed. These published articles are from Australia, Botswana, Canada, Italy India, Jordan, Malaysia, Nigeria, Srilanka, USA and Turkey. “Service Learning In Distance Education: Foreign Language Lear...

  20. Fnom Editor

    OpenAIRE

    Ugur Demiray

    2006-01-01

    Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared as Volume 7, Number: 1 on your screen now as. Very much thanks to all of you once more that we met 21st time, since January 2000. In this issue we published 15 articles, four book reviews, one notes for editor, news and announcements for our readers. And also, we give a place for the Call for Papers to the 4th Special Issue of The Turkish Online Journal of Distance Education (TOJDE) ...

  1. From Editor

    OpenAIRE

    Ugur Demiray

    2008-01-01

    Greetings Dear readers of TOJDE, TOJDE is appeared on your screen now as Volume 9, Number: 4. This is the fourth and the last issue of the year 2008. In this issue it is published two notes for Editor, 13 articles, 2 reviews. And this time, 23 authors from seven different countries are placed. These published articles are from Bangladesh, India, Malaysia, Nigeria, Saudi Arabia, USA and Turkey. “Ubiquitous, Free, And Efficient Online Collaboration Tools For Teaching And Learning” has sent to e...

  2. [Comparison of in vivo characteristics of polyethylene wear particles produced by a metal and a ceramic femoral component in total knee replacement].

    Science.gov (United States)

    Veigl, D; Vavřík, P; Pokorný, D; Slouf, M; Pavlova, E; Landor, I

    2011-01-01

    The aim of the study was to evaluate in vivo and compare, in terms of the quality and number of ultra high-molecular polyethylene (UHMWPE) wear particles, total knee replacements of identical construction differing only in the material used for femoral component production, i.e., CoCrMo alloy or ZrO2 ceramics. Samples of peri-prosthetic granuloma tissue were collected in two patients with total knee replacement suffering from implant migration, who were matched in relevant characteristics. The primary knee replacement in Patient 1 with a CoCrMo femoral component was done 7.2 years and in Patient 2 with a ZrO2 implant 6.8 years before this assessment. The polyethylene wear-induced granuloma was analysed by the MORF method enabling us to assess the shape and size of wear debris and the IRc method for assessment of particle concentration. In the granuloma tissue samples of Patient 1, on the average, particles were 0.30 mm in size and their relative volume was 0.19. In the Patient 2 tissue samples, the average size of particles was 0.33 mm and their relative volume was 0.26. There was no significant difference in either particle morphology or their concentration in the granuloma tissue between the two patients. One of the options of how to reduce the production of polyethylene wear particles is to improve the tribological properties of contacting surfaces in total knee replacement by substituting a cobalt-chrome femoral component with a zirconia ceramic femoral component. The previous in vitro testing carried out with a mechanical simulator under conditions approaching real weight-bearing in the human body did show a nearly three-fold decrease in the number of UHMWPE wear particles in zirconia components. The evaluation of granuloma tissue induced by the activity of a real prosthetic joint for nearly seven years, however, did not reveal any great difference in either quality or quantity of polyethylene debris between the two replacements. The difference of surface

  3. Editor's Note

    Directory of Open Access Journals (Sweden)

    Daniel Shanahan

    2016-07-01

    Full Text Available CORPUS studies have increasingly been of interest to music theorists, musicologists, and music psychology researchers, as is evident in the sheer number of excellent submissions to this special issue. The breadth and depth of these articles, as well as the insightful commentaries, make it seem only fitting to publish over two issues. The current issue contains five articles, eight commentaries, and one research report, and covers folk music, post-tonal music, jazz, Western art music, and the popular music found on Youtube. Eerola presents a model of melodic entropy that provides a nice framework for future information-theoretic work, while Roger Dean and Marcus Pearce present a new approach to modelling pitch-structure in post-tonal music. Frieler, Pfleiderer, Abeßer, and Zaddach give an analysis of jazz solos that demonstrates the role of a narrative arcs in improvisation. White and Quinn present a new corpus that makes use of vast compilations of web-based MIDI data, and demonstrates how such a corpus might be facilitate future musicological and music-theoretic research. Plazak focuses on Youtube as a corpus, and argues that the mutability of such a corpus facilitates our understanding of musical communication, as well as the important role of the listener in defining and re-defining such a dataset. It's encouraging to me both as an editor and practitioner of corpus methods that so many of those heavily involved with the field contributed to these two issues as either an author or a commentator. This issue also brings a number of changes on other fronts. Firstly, Nicola Dibben and Renee Timmers, who served as the journal's editors since Volume 7, have completed their editorial terms. They oversaw the transformation of the journal into a new Open Journal Systems platform, and were able to consistently produce issues that set a very high standard. Under their leadership, the journal both increased its accessibility (we now average more than 1

  4. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2013-04-01

    reviewer indicates that this book is very good at providing deep insights into CLT and into further research that would be informed by CLT itself, by other theories, or by possible combinations of these in a variety of fields including distance education. The second book review from India reviewed by S. K. PULIST, Deputy Director, Distance Education Council, IGNOU, New Delhi, India which written on Expending Domains In Indian Higher Education by K. B. POWAR. The book provides a comprehensive view of the different components of higher education in India. It gives a broad as well as focused perspective of the developments in the system at the same time. From historical analysis to current practices, different facets of the system have been reasonably covered by the author. While discussing the emerging trends in Indian Higher Education, the author does not lose sight of the crucial issues which need to be sorted out and resolved favorably in order to help the process of globalisation. The book would be useful to the new entrants to the system and will surely retain interest of the educational planners, policy makers and practitioners. In fact, it is not only a ‘must read’ for all stakeholders of Indian Higher Education System but also would equally be of interest to the international readers. ear readers, to receive further information and to send your recommendations and remarks, or to submit articles for consideration, please contact TOJDE Secretariat at the below address or send an Email us to tojde@anadolu.edu.tr Hope to stay in touch and meet in our next Issue, on 1st of July 2013. Cordially, Prof. Dr. Ugur Demiray Editor-in-Chief Anadolu University, Yunusemre Campus 26470, Eskisehir TURKEY Tel: +90 222 335 0581 begin_of_the_skype_highlighting +90 222 335 0581 ÜCRETSİZ end_of_the_skype_highlighting ext. 5262, GSM: +90 542 23 22 167 Fax: +90 222 320 4520 Emails: udemiray@anadolu.edu.tr or udemiray33@gmail.com URL: http://home.anadolu.edu.tr/~udemiray , URL: http://tojde.anadolu.edu.tr

  5. The migration of femoral components after total hip replacement surgery: accuracy and precision of software-aided measurements

    International Nuclear Information System (INIS)

    Decking, J.; Schuetz, U.; Decking, R.; Puhl, W.

    2003-01-01

    Objective: To assess the accuracy and precision of a software-aided system to measure migration of femoral components after total hip replacement (THR) on digitised radiographs. Design and patients: Subsidence and varus-valgus tilt of THR stems within the femur were measured on digitised anteroposterior pelvic radiographs. The measuring software (UMA, GEMED, Germany) relies on bony landmarks and comparability parameters of two consecutive radiographs. Its accuracy and precision were calculated by comparing it with the gold standard in migration measurements, radiostereometric analysis (RSA). Radiographs and corresponding RSA measurements were performed in 60 patients (38-69 years) following cementless THR surgery. Results and conclusions: The UMA software measured the subsidence of the stems with an accuracy of ±2.5 mm and varus-valgus tilt with an accuracy of ±1.8 (95% confidence interval). A good interobserver and intraobserver reliability was calculated with Cronbach's alpha ranging from 0.86 to 0.97. Measuring the subsidence of THR stems within the femur is an important parameter in the diagnosis of implant loosening. Software systems such as UMA improve the accuracy of migration measurements and are easy to use on routinely performed radiographs of operated hip joints. (orig.)

  6. Femoral Component Revision with Use of Impaction Bone-Grafting and a Cemented Polished Stem: A Concise Follow-up, at Fifteen to Twenty Years, of a Previous Report*

    NARCIS (Netherlands)

    Te Stroet, M.A.; Gardeniers, J.W.M.; Verdonschot, N.J.; Rijnen, W.H.C.; Slooff, T.J.J.H.; Schreurs, B.W.

    2012-01-01

    We previously reported our results for thirty-three consecutive femoral component revisions with impaction bone-grafting, performed with the X-change femoral revision system and a cemented polished Exeter stem, at a minimum of eight years of follow-up. The present updated study shows the results

  7. Guest editor

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1995-07-15

    Full text: Guest Editor for this special issue of the CERN Courier on the applications of accelerators was Dewi M. Lewis of Amersham International pic, UK. Dr. Lewis was educated at the Physics Department, University of Wales, Swansea, and learnt his accelerator physics as Engineer-in- Charge at the CERN Intersecting Storage Rings before joining industry in 1979 at the beginning of the boom for commercial cyclotrons. Having managed the installation of Amersham's second and third isotope production cyclotrons in the UK, his industrial experience encompassed isotope manufacturing and business management in radiopharmaceuticals and organization of joint ventures. Following closure of several research reactors in 1990, his responsibilities extended to reactor isotope production as well as technology transfer with international laboratories. He was responsible for creation of the first Russian 'weapons to ploughshares' joint venture with the Radioisotope Association, Mayak and the Russian Atomic Energy Ministry. Dr. Lewis currently chairs the European Radiopharmaceutical Industry's committee on future reactor isotopes and is currently involved in the technical development for accelerator technology. Amersham International is one of the world's leading isotope companies, engaged in development, manufacturing, international sales and distribution of radioisotope products in markets for healthcare, research compounds and industrial products. Formerly part of the United Kingdom Atomic Energy Agency, Amersham was one of the first companies to be privatized in 1982.

  8. Guest editor

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    Full text: Guest Editor for this special issue of the CERN Courier on the applications of accelerators was Dewi M. Lewis of Amersham International pic, UK. Dr. Lewis was educated at the Physics Department, University of Wales, Swansea, and learnt his accelerator physics as Engineer-in- Charge at the CERN Intersecting Storage Rings before joining industry in 1979 at the beginning of the boom for commercial cyclotrons. Having managed the installation of Amersham's second and third isotope production cyclotrons in the UK, his industrial experience encompassed isotope manufacturing and business management in radiopharmaceuticals and organization of joint ventures. Following closure of several research reactors in 1990, his responsibilities extended to reactor isotope production as well as technology transfer with international laboratories. He was responsible for creation of the first Russian 'weapons to ploughshares' joint venture with the Radioisotope Association, Mayak and the Russian Atomic Energy Ministry. Dr. Lewis currently chairs the European Radiopharmaceutical Industry's committee on future reactor isotopes and is currently involved in the technical development for accelerator technology. Amersham International is one of the world's leading isotope companies, engaged in development, manufacturing, international sales and distribution of radioisotope products in markets for healthcare, research compounds and industrial products. Formerly part of the United Kingdom Atomic Energy Agency, Amersham was one of the first companies to be privatized in 1982

  9. Articulation of Native Cartilage Against Different Femoral Component Materials. Oxidized Zirconium Damages Cartilage Less Than Cobalt-Chrome.

    Science.gov (United States)

    Vanlommel, Jan; De Corte, Ronny; Luyckx, Jean Philippe; Anderson, Melissa; Labey, Luc; Bellemans, Johan

    2017-01-01

    Oxidized zirconium (OxZr) is produced by thermally driven oxidization creating an oxidized surface with the properties of a ceramic at the top of the Zr metal substrate. OxZr is much harder and has a lower coefficient of friction than cobalt-chrome (CoCr), both leading to better wear characteristics. We evaluated and compared damage to the cartilage of porcine patella plugs, articulating against OxZr vs CoCr. Our hypothesis was that, owing to its better wear properties, OxZr would damage cartilage less than CoCr. If this is true, OxZr might be a better material for the femoral component during total knee arthroplasty if the patella is not resurfaced. Twenty-one plugs from porcine patellae were prepared and tested in a reciprocating pin-on-disk machine while lubricated with bovine serum and under a constant load. Three different configurations were tested: cartilage-cartilage as the control group, cartilage-OxZr, and cartilage-CoCr. Macroscopic appearance, cartilage thickness, and the modified Mankin score were evaluated after 400,000 wear cycles. The control group showed statistically significant less damage than plugs articulating against both other materials. Cartilage plugs articulating against OxZr were statistically significantly less damaged than those articulating against CoCr. Although replacing cartilage by an implant always leads to deterioration of the cartilage counterface, OxZr results in less damage than CoCr. The use of OxZr might thus be preferable to CoCr in case of total knee arthroplasty without patella resurfacing. Copyright © 2016 Elsevier Inc. All rights reserved.

  10. from editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2007-07-01

    Full Text Available Greetings Dear Readers of TOJDE, First of all, please accept my excuse for the reason that the first time TOJDE is a few days delayed to reach its readers in its publication life. I am the most responsibility person for this delaying July 2007 issue of TOJDE is on your screen now again. This is a special issue on the theme on “Web 2.0 and Social Software in Distance Education”, as being Vol. 8, No. 3. Preparing of this special issue took nearly eight months, from the beginning to the arrival to your screen. A short story of this special issue is here if you are interested in. First idea and suggestion came from me to my dear colleagues, Dr. Mark J. W. LEE who is from Charles Sturt University, New South Wales, AUSTRALIA and Dr. Hakan G. SENEL from Turkey, who is Director at the Computer Research and Development Center (BAUM of Anadolu University. After, we agreed on the topic all together we started to announcing as a call for paper at many medium, institutions, governmental or non- governmental organizations, experts, and so on. The seven articles and one study (at “notes for Editor” section published in this special issue were written by twenty authors, from 7 different countries include Australia, Italy, The United Kingdom, Turkey and USA. In addition, two book reviews is also published. I would like to express my sincere thanks that goes to each of them, and valuable panelists for this special issue, in the name of my university and TOJDE. I strongly believe that experience gained on this special issue would encourage us and other interested colleagues in the field for the near future. Below you will find short biodata on my valuable guest editors. Mark J. W. LEE is an Adjunct Lecturer with the School of Education, Charles Sturt University, and an Honorary Research Fellow with the School of Information Technology and Mathematical Sciences, University of Ballarat. He was previously a Lecturer in Information Technology in the School of

  11. Comparative study of material loss at the taper interface in retrieved metal-on-polyethylene and metal-on-metal femoral components from a single manufacturer.

    Science.gov (United States)

    Bills, Paul; Racasan, Radu; Bhattacharya, Saugatta; Blunt, Liam; Isaac, Graham

    2017-08-01

    There have been a number of reports on the occurrence of taper corrosion and/or fretting and some have speculated on a link to the occurrence of adverse local tissue reaction specifically in relation to total hip replacement which have a metal-on-metal bearing. As such a study was carried out to compare the magnitude of material loss at the taper in a series of retrieved femoral heads used in metal-on-polyethylene bearings with that in a series of retrieved heads used in metal-on-metal bearings. A total of 36 metal-on-polyethylene and 21 metal-on-metal femoral components were included in the study all of which were received from a customer complaint database. Furthermore, a total of nine as-manufactured femoral components were included to provide a baseline for characterisation. All taper surfaces were assessed using an established corrosion scoring method and measurements were taken of the female taper surface using a contact profilometry. In the case of metal-on-metal components, the bearing wear was also assessed using coordinate metrology to determine whether or not there was a relationship between bearing and taper material loss in these cases. The study found that in this cohort the median value of metal-on-polyethylene taper loss was 1.25 mm 3 with the consequent median value for metal-on-metal taper loss being 1.75 mm 3 . This study also suggests that manufacturing form can result in an apparent loss of material from the taper surface determined to have a median value of 0.59 mm 3 . Therefore, it is clear that form variability is a significant confounding factor in the measurement of material loss from the tapers of femoral heads retrieved following revision surgery.

  12. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2013-07-01

    research designs, Natural Inquiry Approach was preferred. In this study, one of the purposeful sampling methods, criterion sampling was used was held in a private school connected to National Education Directorate of Eskisehir in 2008-2009 academic year spring term. Webfolios prepared by students, assignments given by the teacher, and other digital data available in webfolio system were used as data collection tools. When student webfolios were examined concerning their quality, most webfolios prepared by the students were found to be qualified enough in terms of readability, authenticity, timeliness, and the use of media sources. However, most of the student webfolios do not have a systematic design. The assignments given by the teacher was determined to be readable, clear, and has no misspelling. It was also observed by them that the teacher urged students to deliver their webfolios in time, suggested the use of class book and the Internet. Students, in their webfolios, preferred using text, picture and tables, but did not prefer to use video sources. The 8th article is titled as “SWOT ANALYSIS OF MA EDUCATIONAL PLANNING AND MANAGEMENT PROGRAMME OF ALLAMA IQBAL OPEN UNIVERSITY, ISLAMABAD” written by Dr. S. Manzoor Hussain SHAH and uazzam Ali SAQIB from Allama Iqbal Open University Islamabad, Pakistan. Their major objectives of the study were to explore various internal aspects of the MA Educational Planning and Management (EPM programme of Allama Iqbal Open University (AIOU, Islamabad to find its strengths and weaknesses, and to look into external aspects for identifying the opportunities and threats to the programme. Based on the study, a number of strengths, weaknesses, opportunities, and threats were found which provided a basis for reviewing and revising a number of components of the programme. The study explored the various aspects of MA EPM programme of AIOU in the light of programme objectives as well as the national and international needs with special

  13. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2012-04-01

    Full Text Available Dear TOJDE Readers,Welcome to the Volume 13 Number: 2 of TOJDE! In this issue, 7 notes for Editor and 22 articles one book review of 57 authors from 12 different countries have been published. These published articles are from, Barbados, Ethiopia, India, Indonesia, Iran, Nigeria, Pakistan, Russia, Saudi Arabia, Turkey, USA and Zimbabwe.In general, around 13 articles and 4 notes for editors have been published in TOJDE so far. I would like to explain, why this time 22 articles and 8 submissions published in the articles and in notes for Editor Section respectively. First all, you should know that if a submission picks up from 3 TOJDE editors between 4.5 and 9 over all 9 credits, it means that this submission can be published in TOJDE in the coming issue. However, since the publishing priority of the accepted papers belongs to the highest scored ones, submissions which receive a score between 4.5 and 5 or 6 may wait and be archived for publishing later on. TOJDE administration respected this publishing rule up to now. Therefore, some accepted submissions which obtained over 4.5 have not been published up to now. These submissions were waiting for publishing in TOJDE in the future. In this issue, we decided to give them a chance to be published. For this reason, the current issue includes more papers than the previous issues. The 1st Notes for editor arrived from Russia written by Galina ARTYUSHINA and Olga SHEYPAK on Impacting Motivation In The Virtual Classroom. They mentioned that teachers, educational managers and learners must realize that new opportunities are offered by modern on-line communication. A person with basic Internet and Web skills is open to a new world of knowledge, from free Web surfing and self-organized education - through on-line resources and familiarization with Internet culture, its places, sites, search engines etc. - up to a more structured approach. The 2nd notes for editor is titled as “Use Of Libraries In Open And

  14. Editor's preface

    International Nuclear Information System (INIS)

    Greiner, W.

    2001-01-01

    -energy heavy ion collisions. This symposium was meant as a token of appreciation for his life, his work and his personality by his friends and colleagues. Mike certainly would have enjoyed the fine talks, the lively discussions, the excursion to the Oelberg, and the hospitable setting at the DPG conference center. My special thanks go to the Wilhelm und Else Heraeus Stiftung for its generous support, which made this symposium possible. I want to express my gratitude to Johann Rafelski, Tucson, for his advice. Thanks are also due to Mathias Brandstetter for his assistance in organizing the conference and to Joachim Reinhardt for his help in preparing the proceedings. Finally, I acknowledge the agreeable collaboration with Istvan Lovas, editor-in-chief of Heavy Ion Physics. (author)

  15. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2013-10-01

    course of one-semester study. Data were collected from the first and final drafts of writing assignments, written peer comments, a questionnaire and an interview. While the document analysis was the main data collection method, a questionnaire and an interview provided crucial information. The results revealed that the nature of students’ feedback focused on content more than grammatical errors. However, quantitative analyses of the peer comments and revisions to the drafts show that feedback given on Facebook had an effect on improving revised drafts. There was statistically significant improvement in the revised drafts which was linked to peer feedback. Finally, the analysis of interviews indicated positive attitude on the use of Facebook for peer feedback in the English class. The 20th article is again from India on Assessment Of E-Learning Needs Among Students Of Colleges Of Education, written by Hamid Mohammad AZIMI, Research Scholar in Education Department of Studies in Education, University of Mysore, Mysore. This study is a descriptive and survey type work. Main objective of this research is to explore e-learning system components needs among students of colleges of education (one year Bachelor of Education or B.Ed. degree programme affiliated by University of Mysore, India. Needs assessment is one of the main investigative tools used by institutions to the identification of actual needs, gaps, and hidden parts in the system and other activities. Through a comprehensive needs assessment process, an institution can establish its e-learning goals. Based on this view, a researcher made questionnaire was designed and validated by experts in teacher education, ICT and e-learning field. For reliability of the tool a pilot test was carried and the Alpha Cronbach value found .8980 and classified as having acceptable. Researcher tried to find out the most high and the lowest ranks in needs of students. Also gender, type of institutions on dependency to government

  16. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur DEMIRAY

    2012-07-01

    Full Text Available Turkish Online Journal of Distance Education-TOJDE July 2012 ISSN 1302-6488 Volume: 13 Number: 3 from EditorDear TOJDE Readers,Welcome to the Volume 13 Number: 3 of TOJDE! In this issue, 2 Notes for Editor and 26 articles of 51 authors from 14 different countries around the world have been published. These published articles are from, Algeria, Australia, Bengaldesh, Greece, India, Iran, Malaysia, Mariutius, Nigeria, Oman, Spain, Turkey, USA and Zimbabwe.First all, you should know that if a submission picks up from 3 TOJDE editors between 4.5 and 9 over all 9 credits, it means that this submission can be published in TOJDE in the coming issues. However, since the publishing priority of the accepted papers belongs to the highest scored ones, submissions which receive a score between 4.5 and 5 or 6 should wait and be archived for publishing later on. TOJDE administration respected this publishing rule up to now. Therefore, some accepted submissions which obtained over 4.5 have not been published yet up to now. These submissions were waiting for publishing in TOJDE in the future. In this issue, we decided to give them a chance to be published. For this reason, the current issue includes more papers than the previous issues. The 1st Notes for editor arrived from USA and written by Steve McCREA on Transforming Teachers, Transforming Schools: Turning "Sages" Into "Guides on The Side". He mentioned that teachers, educational managers and learners must realize that new opportunities are offered by modern communication. When a teacher becomes a "guide on the side," there is a change in the school's culture that can be measured. This presentation is extracted from a newly published book, Let's Lecture Less, edited by Steve McCrea (Visualandactive.com and Mario Joel Llorente Leyva. The 2nd notes for editor is titled as “Challenges Encountered By A Distance Learning Organisation” which is written by Dr. Sangeeta MALIK, from Education, Humanities and

  17. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2009-01-01

    Full Text Available TOJDE is appeared on your screen now as Volume 10, Number: 1. This is the first issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published four article are in “Notes for Editor Sectio”, 13 articles, 2 reviews. And this time, 26 authors from twelwe different countries are placed. These published articles are from Australia, Botswana, Canada, Italy India, Jordan, Malaysia, Nigeria, Srilanka, USA and Turkey. “Service Learning In Distance Education: Foreign Language Learning Environments” has sent to editor of TOJDE from Turkey and written by Muhlise Coşgun OGEYIK from Trakya University, Faculty of Education Edirne, TURKEY and Emre GUVENDIR from University of California. Their paper provides an overview in general education, in particular foreign language education, can be acknowledged as a lifelong learning process which can be transformed beyond the borders in global sense. Learning a foreign language requires proficiency in four basic skills which are reading, writing, speaking, and listening. Of these skills, speaking and listening are the most daunting tasks for learners and create obstacles when learners of target language do not get the chance of meeting native speakers. Such obstacles can be overwhelmed by integrating certain applications into education process. Service-learning through the internet as a teaching method can be considered one of the most striking one of those applications for foreign language learners. Paper focuses on the benefits of service-learning are discussed and some suggestions are offered for introducing this method in foreign language settings. The second notes for editor is titled as Students’ Opinions On Blended Learning which is written by Meric BALCI and Haluk SORAN from Hacettepe University, Education Faculty, Ankara,Turkey. They mentioned that E-learning was acknowledged by most educators and researchers as a savior, even an only alternative in education field, especially in

  18. Fnom Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2006-01-01

    Full Text Available Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared as Volume 7, Number: 1 on your screen now as. Very much thanks to all of you once more that we met 21st time, since January 2000. In this issue we published 15 articles, four book reviews, one notes for editor, news and announcements for our readers. And also, we give a place for the Call for Papers to the 4th Special Issue of The Turkish Online Journal of Distance Education (TOJDE (Volume: 7, Number: 2 To be delivered in April 2006. The first article is coming from The Robert Gordon University, Scotland, United Kingdom which is written by Geoff GOOLNIK. He is tutor at Centre for the Enhancement of Learning and Teaching (CELT. His article titled as “Effective Change Management Strategies for Embedding Online Learning within Higher Education and Enabling the Effective Continuing Professional Development of its Academic Staff”. According to Goolnik, “Previous research studies show that those universities wishing to successfully engage in online learning will have to adopt and implement tactics that have the capacity to overcome existing social and cultural constraints. An inclusive, consultative framework needs to be established, and Continuing Professional Development (CPD has been recognized as a key concern that should be addressed here. Second article is dealt with some problems of DE in Nigeria by Dr. Mudasiru Olalere YUSUF in his study which entitled as “Problems and Prospects of Open And Distance Education in Nigeria” He is from Department of Curriculum Studies and Educational Technology, Faculty of Education University of Ilorin, Nigeria. His article explores that the major terms inherent in open and distance education, its potentials, possible factors that may inhibit successful implementation of the programme, and the use of low and high technological tools for its implementation, by adding of his recommendations. And than

  19. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2010-04-01

    Full Text Available Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now again after 3 months as Volume 11, Number: 2. This is the second issue of the year 2010. In this issue it is published four Notes for Editor, fourteen articles and four book reviews. And this time, 37 authors from 8 different countries are placed. These published articles are from Greece, Indonesia, Iran, Malaysia, Pakistan, Saudi Arabia, USA and Turkey.Again Kevin YEE & Jace HARGIS have sent a good and short note to editor of TOJDE from USA. Their paper involve on YouTube and Video Quizzes. They mentioned YouTube videos can be employed to introduce a subject, such as framing the context, or simply to pique curiosity. Or, they may be shown after a principle has been taught, and now needs to be applied in a case study and defense the advantages of this type of formative assessment include both increasing the stimuli and subsequent attention of the student, as well as requiring continual engagement, which produces critical information, and allows students to more fully self-regulate their own conceptual understanding, so they can move forward in their learning with an increased level of awareness of what they know and do not know.The second notes for editor is titled as “COMPARATIVE STUDY OF THE USE OF ICT IN ENGLISH TEACHING-LEARNING PROCESSES” which is written by Abbas ZARE-EEand Abbas SHEKAREY, from rhe Universİty of Kashan, Kashan, Iran. They mentioned in their paper to compare the amount and quality of ICT use in English teaching-learning processes among the faculty members of Medical and Non-medical Universities in Kashan, Iran and to explore the dimensions in which the two groups can benefit from one another and from ICT training in this respect. The results of the analyses showed that there was a significant difference in the amount of ICT use among the faculty members of medical and non-medical universities. Results also indicated that there was a significant

  20. Editors page

    Directory of Open Access Journals (Sweden)

    Margarita Barretto

    2007-12-01

    Full Text Available Entregamos o segundo número da Revista Brasileira de Pesquisa em Turismo- RBTur, inaugurada oficialmente com o primeiro número no dia 25 de agosto de 2007, que coincide com importantes datas no relacionamento das pessoas com as viagens e o turismo. Neste dia, em 1768, o Capitão James Cook, empreende sua primeira viagem transoceânica na sua nave Endeavour. No transporte terrestre, em 1910, funda-se a companhia Yellow Cab nos Estados Unidos. No ar, em 1919, inaugura-se a aviação comercial, quando um avião civil (Havilland transporta passageiros de Londres a Paris. É uma data também importante para as mulheres aviadoras; em 1920 Adrienne Bolland será a primeira figura feminina a atravessar de avião o Canal da Mancha e, em 1932, Amélia Earhart realizará o primeiro vôo sem paradas através do território dos Estados Unidos. Finalmente, no espaço, no dia 25 de agosto de 1989, a sonda Voyager 2 chega a Netuno. Também para os novos paradigmas do turismo, como a preservação da natureza, a data é importante, pois marca a criação do Serviço de Parques Nacionais, nos Estados Unidos, em 1916, que servirá de modelo aos demais países do mundo. Precedida de tantas efemérides transcendentes, a nossa revista tem a responsabilidade de deixar para o futuro uma marca de qualidade acadêmica e inovação científica, que pretendemos cumprir apoiados nos excelentes pesquisadores que há no Brasil e nos países vizinhos, assim como aqueles consagrados no primeiro mundo que nos prestigiam com intercâmbios culturais há tantos anos. O primeiro número teve impressionante acolhida, tendo os editores recebido mails elogiosos de todo o país, assim como da Nova Zelândia, do México, da Espanha, da Argentina, entre outros, de cientistas provenientes das mais diversas áreas, refletindo o sucesso da nossa abordagem multidisciplinar sobre o turismo. Neste segundo número, apresentamos estudos inovadores referentes a aspectos simbólicos do turismo

  1. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2007-10-01

    Full Text Available Greetings Dear readers of TOJDE, I am pleased to inform you that in the 8th year of TOJDE are appeared on your screen now as Volume 8, Number: 4. Ti is the last issue of the year 2007. As you volume ( Number 3 was the special issue of TOJDE on “Web 2.0 and Social Software in Distance Education” subject. I received many congrulation for this special issue from the subject expert and TOJDE readers. During 6 months I received more than 45 submissions. Some of them rejected by me for the reason that their subjects were not fit for TOJDE’s publishing content strategy, and some of them rejected by TOJDE’s editors. And others can be publish next year’s issues In this issue we published one notes for Editor, 13 articles, already one review (maybe I can update for one or two reviews in due course which I am waiting from my book reviewers, news and announcements for our readers. This time 24 authors from eighth different countries are placed in this issue. These published articles are from Australia, Gana, Indonesia, Malaysia, Nigeria, Pakistan, Turkey, and UK. The first article of this issue is coming from Faculty of Education, Monash University, Victoria, AUSTRALIA. Article is entitled as “Globalization, Distance Education And Hegemonic Futures” and written by Dr. Glenn RUSSELL. He says in his paper that “Available options for distance educators can be understood in terms of instrumental and interpersonal axes that can potentially indicate the relative consideration that can be given to these factors. This approach is suggested as one way to understand available options at a time when there has been an apparent increase in instrumental approaches to distance education at the expense of interpersonal approaches and issues of social justice. While this problem is of concern, it is more appropriate to reflect on the unintended consequences of distance education for society and identify them than it is to uncritically oppose globalisation

  2. The association of lesion eccentricity with plaque morphology and components in the superficial femoral artery: a high-spatial-resolution, multi-contrast weighted CMR study

    Directory of Open Access Journals (Sweden)

    Zhao Xihai

    2010-07-01

    Full Text Available Abstract Background Atherosclerotic plaque morphology and components are predictors of subsequent cardiovascular events. However, associations of plaque eccentricity with plaque morphology and plaque composition are unclear. This study investigated associations of plaque eccentricity with plaque components and morphology in the proximal superficial femoral artery using cardiovascular magnetic resonance (CMR. Methods Twenty-eight subjects with an ankle-brachial index less than 1.00 were examined with 1.5T high-spatial-resolution, multi-contrast weighted CMR. One hundred and eighty diseased locations of the proximal superficial femoral artery (about 40 mm were analyzed. The eccentric lesion was defined as [(Maximum wall thickness- Minimum wall thickness/Maximum wall thickness] ≥ 0.5. The arterial morphology and plaque components were measured using semi-automatic image analysis software. Results One hundred and fifteen locations were identified as eccentric lesions and sixty-five as concentric lesions. The eccentric lesions had larger wall but similar lumen areas, larger mean and maximum wall thicknesses, and more calcification and lipid rich necrotic core, compared to concentric lesions. For lesions with the same lumen area, the degree of eccentricity was associated with an increased wall area. Eccentricity (dichotomous as eccentric or concentric was independently correlated with the prevalence of calcification (odds ratio 3.78, 95% CI 1.47-9.70 after adjustment for atherosclerotic risk factors and wall area. Conclusions Plaque eccentricity is associated with preserved lumen size and advanced plaque features such as larger plaque burden, more lipid content, and increased calcification in the superficial femoral artery.

  3. No difference in in vivo polyethylene wear particles between oxidized zirconium and cobalt-chromium femoral component in total knee arthroplasty.

    Science.gov (United States)

    Minoda, Yukihide; Hata, Kanako; Iwaki, Hiroyoshi; Ikebuchi, Mitsuhiko; Hashimoto, Yusuke; Inori, Fumiaki; Nakamura, Hiroaki

    2014-03-01

    Polyethylene wear particle generation is one of the most important factors affecting mid- to long-term results of total knee arthroplasties. Oxidized zirconium was introduced as a material for femoral components to reduce polyethylene wear generation. However, an in vivo advantage of oxidized zirconium on polyethylene wear particle generation is still controversial. The purpose of this study was to compare in vivo polyethylene wear particles between oxidized zirconium total knee prosthesis and conventional cobalt-chromium (Co-Cr) total knee prosthesis. Synovial fluid was obtained from the knees of 6 patients with oxidized zirconium total knee prosthesis and from 6 patients with conventional cobalt-chromium (Co-Cr) total knee prosthesis 12 months after the operation. Polyethylene particles were isolated and examined using a scanning electron microscope and image analyser. Total number of particles in each knee was 3.3 ± 1.3 × 10(7) in the case of oxidized zirconium (mean ± SD) and 3.4 ± 1.2 × 10(7) in that of Co-Cr (n.s.). The particle size (equivalent circle diameter) was 0.8 ± 0.3 μm in the case of oxidized zirconium and 0.6 ± 0.1 μm in that of Co-Cr (n.s.). The particle shape (aspect ratio) was 1.4 ± 0.0 in the case of oxidized zirconium and 1.4 ± 0.0 in that of metal Co-Cr (n.s). Although newly introduced oxidized zirconium femoral component did not reduce the in vivo polyethylene wear particles in early clinical stage, there was no adverse effect of newly introduced material. At this moment, there is no need to abandon oxidized zirconium femoral component. However, further follow-up of polyethylene wear particle generation should be performed to confirm the advantage of the oxidized zirconium femoral component. Therapeutic study, Level III.

  4. From Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2014-04-01

    University, Bayburt, TURKEY. The aim of the study is to reveal the students’ views who are studying in different departments of distant education programs provided by Anadolu University in TURKEY. Qualitative research method was used in the study and purposeful sampling was followed. The research was conducted with 10 students who were working in different jobs and taking distance education courses in different departments. The findings obtained as a result of data analysis were examined, the students taking distance education courses in different departments stated that this education method was a great opportunity and chance for them. To receive further information and to send your recommendations and remarks, or to submit articles for consideration, please contact tojde secretariat at the below address or e-mail us to tojde@Anadolu.Edu.Tr Hope to stay in touch and meet in our next issue, on 1st of July 2014. Cordially, Prof. Dr. Ugur Demiray, Editor-In-Chief of TOJDE Anadolu University, Yunusemre Campus 26470 Eskisehir TURKEY Tel: +90 222 335 0581 Ext. 5262 GSM: +90 542 23 22 167 Fax: +90 222 320 4520 Emails: udemiray@anadolu.edu.tr or udemiray33@gmail.com URL: Http://www.ugurdemiray.com.tr Http://tojde.anadolu.edu.tr

  5. Corrosion at the head-neck interface of current designs of modular femoral components: essential questions and answers relating to corrosion in modular head-neck junctions.

    Science.gov (United States)

    Osman, K; Panagiotidou, A P; Khan, M; Blunn, G; Haddad, F S

    2016-05-01

    There is increasing global awareness of adverse reactions to metal debris and elevated serum metal ion concentrations following the use of second generation metal-on-metal total hip arthroplasties. The high incidence of these complications can be largely attributed to corrosion at the head-neck interface. Severe corrosion of the taper is identified most commonly in association with larger diameter femoral heads. However, there is emerging evidence of varying levels of corrosion observed in retrieved components with smaller diameter femoral heads. This same mechanism of galvanic and mechanically-assisted crevice corrosion has been observed in metal-on-polyethylene and ceramic components, suggesting an inherent biomechanical problem with current designs of the head-neck interface. We provide a review of the fundamental questions and answers clinicians and researchers must understand regarding corrosion of the taper, and its relevance to current orthopaedic practice. Cite this article: Bone Joint J 2016;98-B:579-84. ©2016 The British Editorial Society of Bone & Joint Surgery.

  6. Do Rerevision Rates Differ After First-time Revision of Primary THA With a Cemented and Cementless Femoral Component?

    DEFF Research Database (Denmark)

    Gromov, Kirill; Pedersen, Alma B; Overgaard, Søren

    2015-01-01

    ) and 2 years (range, 0-16 years), respectively. Survival of first revision THA, with second revision of the femur as outcome, was evaluated using hazard ratios (HRs) with 95% confidence interval (CI) adjusting for potential confounding. All patient- and surgery-related data are collected from Danish...... for the most likely confounding factors. Our data suggest that increased use of cementless fixation in primary THA may lead to inferior survivorship of first revision THA. Level III, therapeutic study....... the results of future revision procedures; however, this has not been documented. The purpose of this study was to compare (1) the risk for rerevision of first revision THA; (2) the patterns of femoral bone loss at the time of first revision of primary THA; (3) the reasons for first revision of primary THA...

  7. From the Editors

    Directory of Open Access Journals (Sweden)

    Jason Harshman

    2016-11-01

    Full Text Available Teaching about globalizations and our interconnectedness with people and places around the world is an essential component of K-12 and higher education, but knowledge about global issues and news is not enough. Increased mobility, digital communication, and cultural hybridity, along with oppression and social injustice require that educators and students not only be able to communicate and collaborate with people different from them, but regularly engage in critical self-reflection around perceived norms and values. In January 2016, the editors of this special issue distributed a call for theoretical, research-based, and practitioner oriented manuscripts on teaching and learning that bring social studies and global citizenship education together. Evidence by the transnational contributions published within this issue of the Journal of Social Studies Education Research, the place of global citizenship education within the social studies is evolving, multifaceted, and not without complications. In short: just how it should be.

  8. Trunnion Corrosion and Early Failure in Monolithic Metal-on-Polyethylene TMZF Femoral Components: A Case Series

    Directory of Open Access Journals (Sweden)

    Peter Walker

    2016-09-01

    Full Text Available We describe four patients who were treated with primary total hip arthroplasty (THA at two tertiary academic Australian teaching hospitals that experienced premature failure of head-neck trunnions through dissociation of the head-neck taper junction. This retrospective case series have similar clinical presentations and macroscopic pathology with severe head-neck taper junction loss of material, corrosion and early catastrophic failure. It is proposed that the accelerated wear is related to use of varus offset neck in a proprietary beta titanium alloy (Ti-12Mo-6Zr-2Fe  or TMZFÒ Stryker Osteonics, Mahwah NJ, USA TMZF femoral stem, longer head-neck combination in a relatively active, older, male patient population. In this limited case series presentation was on average 80 months (range 53-92 following index procedure. In three of the four patients, a prodromal period of groin or buttock pain was reported for between 1 week and 2 months prior to acute presentation. Significant metallosis and local tissue damage including gluteal muscle insufficiency was evident. Each stem revised was well fixed. An extended trochanteric osteotomy was required in two of the four cases for stem extraction. We recommend caution and further evaluation on the relationship between TMZF metal alloy and its longevity in higher demand patients with high neck offset, varus stem geometry and large CoCr bearing heads.

  9. Do post-operative changes of neck-shaft angle and femoral component anteversion have an effect on clinical outcome following uncemented total hip arthroplasty?

    Science.gov (United States)

    Müller, M; Abdel, M P; Wassilew, G I; Duda, G; Perka, C

    2015-12-01

    The accurate reconstruction of hip anatomy and biomechanics is thought to be important in achieveing good clinical outcomes following total hip arthroplasty (THA). To this end some newer hip designs have introduced further modularity into the design of the femoral component such that neck-shaft angle and anteversion, which can be adjusted intra-operatively. The clinical effect of this increased modularity is unknown. We have investigated the changes in these anatomical parameters following conventional THA with a prosthesis of predetermined neck-shaft angle and assessed the effect of changes in the hip anatomy on clinical outcomes. In total, 44 patients (mean age 65.3 years (standard deviation (SD) 7); 17 male/27 female; mean body mass index 26.9 (kg/m²) (SD 3.1)) underwent a pre- and post-operative three-dimensional CT scanning of the hip. The pre- and post-operative neck-shaft angle, offset, hip centre of rotation, femoral anteversion, and stem alignment were measured. Additionally, a functional assessment and pain score were evaluated before surgery and at one year post-operatively and related to the post-operative anatomical changes. The mean pre-operative neck-shaft angle was significantly increased by 2.8° from 128° (SD 6.2; 119° to 147°) to 131° (SD 2.1; 127° to 136°) (p = 0.009). The mean pre-operative anteversion was 24.9° (SD 8; 7.9 to 39.1) and reduced to 7.4° (SD 7.3; -11.6° to 25.9°) post-operatively (p shaft angles was found with a significant decrease of the post-operative anteversion and slight increase of the neck-shaft angles, but without any impact on clinical outcome. ©2015 The British Editorial Society of Bone & Joint Surgery.

  10. Message from the Editor

    Science.gov (United States)

    Stambaugh, Ronald D.

    2014-01-01

    This last year being an odd numbered year, the pages of Nuclear Fusion saw a large influx of expanded papers from the 2012 Fusion Energy Conference in San Diego. Many papers have focused on the scientific and technical challenges posed by ITER. Contributions are steadily increasing from the new superconducting tokamaks in Asia. The ITER Project continues to move ahead. Construction at the Cadarache site is quite remarkable. Buildings completed include the huge Poloidal Field Coils Winding Facility and the Headquarters building, which has been occupied by the ITER staff. Work is progressing on the Assembly building and the Cryostat Workshop. The base of the tokamak complex is being laid. Besides the construction that is taking place and will take place at the site, components from around the world have to navigate the complex route from Marseilles to the site. A test convoy replicating the dimensions and weights of the most exceptional ITER loads successfully traversed that route in 2013. We are pleased to report that the IAEA and ITER have finalized the agreement for ITER authors to publish papers in Nuclear Fusion . Nuclear Fusion is proud to continue its key role in providing the leading forum for the documentation of scientific progress and exchange of research results internationally toward fusion energy. Refereeing The Nuclear Fusion editorial office appreciates greatly the effort made by our referees to sustain the high quality of the journal. Since January 2005, we have been offering the most active referees over the past year a personal subscription to Nuclear Fusion with electronic access for one year, free of charge. We have excluded our Board Members, Guest Editors of special editions and those referees who were already listed in previous years. The following people have been selected: J.M. Canik, Oak Ridge National Laboratory, USA I.T. Chapman, Culham Centre for Fusion Energy, UK L.-G. Eriksson, Commission of the European Communities, Belgium T. Evans

  11. From the Editor

    OpenAIRE

    Ugur Demiray

    2011-01-01

    Turkish Online Journal of Distance Education-TOJDE April 2011 ISSN 1302-6488 Volume: 12 Number: 2 from EditorGreetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 12, Number: 2. In this issue it is published 4 notes for Editor, 14 articles, 1 book review. And this time, 43 authors from 10 different countries are placed. These published articles are from Austrlia, Bangldesh, India, lndonasia, Iran, Malaysia. Pakistan, Serbia, Turkey and USA.The first Notes for editor a...

  12. Femoral nerve damage (image)

    Science.gov (United States)

    The femoral nerve is located in the leg and supplies the muscles that assist help straighten the leg. It supplies sensation ... leg. One risk of damage to the femoral nerve is pelvic fracture. Symptoms of femoral nerve damage ...

  13. From the Editor

    OpenAIRE

    Ugur Demiray

    2009-01-01

    Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 10, Number: 2. This is the second issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published four notes for Editor, 13 articles, 2 reviews. And this time, 28 authors from 8 different countries are placed. These published articles are from Canada, Gana, India, Iran, Malaysia, Pakistan, United Kingdom and Turkey. “Reflective Approach In Teaching Pre-Degree Chemistry” has sent to editor of TOJ...

  14. From the Editor

    OpenAIRE

    Ugur Demiray

    2012-01-01

    Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 13 Number: 1 In this issue it is published 5 notes for Editor, 16articles, 2 books reviews a nd this time, 53 authors from 12 different countries are placed. These published articles are from Azerbaijan, Bangladesh, Greece, Iran, Malaysia, Morocco, Nigeria, Pakistan, Turkey, UAE and USA.The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on Simply including a narrative co...

  15. From the Editor

    OpenAIRE

    Ugur Demiray

    2011-01-01

    Dear readers of TOJDE,TOJDE appears on your screen now as Volume 12, Number: 4. In this issue it publishes 5 notes for Editor, 10 articles, 2 book reviews. And this time, 33 authors from 10 different countries are placed. These published articles are from Bangladesh, Ethiopia, India, Malaysia, Nigeria, Pakistan, Saudi Arabia, Turkey, UAE and USA. The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on Google+ is like Twitter in that anyone can follo...

  16. From the editors

    NARCIS (Netherlands)

    NN,

    2001-01-01

    Hofstadter’s Law: Things always take longer than you think, even when you take into account Hofstadter’s Law. [D. Hofstadter, Gödel, Escher, Bach: an eternal golden braid (1980) 152]. This certainly applies to the forthcoming issues of the Flora Malesiana. According to its editors the bottleneck

  17. Letters to the Editor

    Science.gov (United States)

    1999-09-01

    All the Letters to the Editor in this issue are in the same PostScript or PDF file. Contents The imaginary Sun? Harold Aspden Energy Science Ltd, PO Box 35, Southampton SO16 7RB, UK Difficult physics? Tim Akrill Chief Examiner, A-level Physics, Edexcel Foundation Was it a dream? Bill Jarvis 6 Peggy's Mill Road, Edinburgh EH4 6JY

  18. From the editor's desk

    Indian Academy of Sciences (India)

    Ever since the Indian Academy of Sciences inherited the publication of the Journal of Genetics from J. B. S. Haldane, successive Editors-in-Chief, Profs H. Sharat Chandra, K. VijayRaghavan, Amitabh Joshi and Rajiva Raman, with the support of members of the editorial board, have not only sustained but also expanded the ...

  19. Letter to the editors

    African Journals Online (AJOL)

    2012-10-19

    Oct 19, 2012 ... (interleukin 10 (IL10), Tumor necrosis factor alpha (TNF- alpha) and interferon gamma (IFN-gamma) were done. ... 2. To the editors of the Pan African Medical Journal. Rheumatic heart disease (RHD) is a devastating squeal of acute rheumatic fever (ARF) in Africa. .... Gorgulu S, Eren M, Bagirtan B et al.

  20. Letter from the Editors

    Directory of Open Access Journals (Sweden)

    Paul Boshears

    2012-08-01

    Full Text Available With grateful hearts we offer this, the second issue of our second volume. The result of months of back-breaking thinking, emailing, looking, clicking, watching, writing and reading, our summer issue is here. The editors could not have done this without your support. We welcome your materials for our future issues as well as your continued contributions.

  1. Letter from the Editors

    Directory of Open Access Journals (Sweden)

    The Editors

    2013-07-01

    Full Text Available With grateful hearts we offer this, the first issue of our third volume. The result of months of back-breaking thinking, emailing, looking, clicking, watching, writing and reading, our new issue is here. The editors could not have done this without your support. We welcome your materials for our future issues as well as your continued contributions.

  2. Letter from the Editors

    Directory of Open Access Journals (Sweden)

    Paul Boshears

    2012-11-01

    Full Text Available With grateful hearts we offer this, the third issue of our second volume. The result of months of back-breaking thinking, emailing, looking, clicking, watching, writing and reading, our fall issue is here. The editors could not have done this without your support. We welcome your materials for our future issues as well as your continued contributions.

  3. GUEST EDITORS' INTRODUCTION: Guest Editors' introduction

    Science.gov (United States)

    Coulson, Geoff; de Meer, Jan B.

    1997-03-01

    system components (e.g. file server, operating system and network) are composed to build the required end-to-end service. Providing such a service may well require explicit resource allocation (e.g. of network bandwidth or CPU cycles); admission control may also be required to ensure that requested QoS levels can be met. QoS monitoring, adaptation and renegotiation are concerned with supporting QoS during the run time of an application. QoS monitoring and QoS adaptation are conceptually related in a feedback loop in which current QoS levels are observed and fine grained reconfiguration is triggered as necessary to ensure that the required levels are maintained. An example of such a loop is to be found in Internet tools such as vic or vat which monitor network delay and adapt by adjusting the size of an elastic playout buffer. QoS renegotiation is a coarser grained adaptation, often explicitly initiated by the user, in which required QoS levels are revised at run time. An example could be a user scaling a video display from colour to monochrome so that sufficient resources can be freed to support an additional connection. The papers in this special issue were selected from the fourth QoS Workshop held in Paris in March 1996. To understand the overall evolution of QoS research it is useful to know some background on the series of workshops of which the Paris workshop was a part. The first workshop to be dedicated exclusively to QoS issues was organized in Canada by the European RACE project R2088 (TOPIC) in cooperation with the University of Montreal in June 1994. A European counterpart of this initiating event occurred in the same year in September 1994 in Aachen, Germany. This latter event was held in cooperation with the European Conference on Intelligence in Broadband Services and Networks (IS&N94). A third workshop was then held in conjunction with the IFIP conference on Open Distributed Processing (ICODP95) in Brisbane, Australia in March 1995. By 1996 more

  4. A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years.

    Science.gov (United States)

    Kadar, Thomas; Hallan, Geir; Aamodt, Arild; Indrekvam, Kari; Badawy, Mona; Havelin, Leif Ivar; Stokke, Terje; Haugan, Kristin; Espehaug, Birgitte; Furnes, Ove

    2011-10-01

    We performed a randomized study to determine the migration patterns of the Spectron EF femoral stem and to compare them with those of the Charnley stem, which is regarded by many as the gold standard for comparison of implants due to its extensive documentation. 150 patients with a mean age of 70 years were randomized, single-blinded, to receive either a cemented Charnley flanged 40 monoblock, stainless steel, vaquasheen surface femoral stem with a 22.2-mm head (n = 30) or a cemented Spectron EF modular, matte, straight, collared, cobalt-chrome femoral stem with a 28-mm femoral head and a roughened proximal third of the stem (n = 120). The patients were followed with repeated radiostereometric analysis for 2 years to assess migration. At 2 years, stem retroversion was 2.3° and 0.7° (p < 0.001) and posterior translation was 0.44 mm and 0.17 mm (p = 0.002) for the Charnley group (n = 26) and the Spectron EF group (n = 74), respectively. Subsidence was 0.26 mm for the Charnley and 0.20 mm for the Spectron EF (p = 0.5). The Spectron EF femoral stem was more stable than the Charnley flanged 40 stem in our study when evaluated at 2 years. In a report from the Norwegian arthroplasty register, the Spectron EF stem had a higher revision rate due to aseptic loosening beyond 5 years than the Charnley. Initial stability is not invariably related to good long-term results. Our results emphasize the importance of prospective long-term follow-up of prosthetic implants in clinical trials and national registries and a stepwise introduction of implants.

  5. Letter from the Editors

    Directory of Open Access Journals (Sweden)

    Jamie Allen

    2013-05-01

    Full Text Available With grateful hearts we offer this, the fourth issue of our second volume. The result of months of back-breaking thinking, emailing, looking, clicking, watching, writing and reading, our winter issue is here. The editors could not have done this without your support. We welcome your materials for our future issues as well as your continued contributions. Purchase your copy of our first book from Punctum Books.

  6. DOSSIER: Intelectuales y Editores

    Directory of Open Access Journals (Sweden)

    Gustavo Sorá

    2009-04-01

    Full Text Available El intelectual abre ideas, el editor las cierra. El escritor produce textos, el editor impresos. El intelectualescribe pero es el editor quien publica. No por nada, afirman algunos psicólogos, el pensamientoculmina con su publicación. Entre el escritor y el editor se moviliza una energía simbólica y socialsublimada bajo las líneas impresas que llegan al lector. Ese entre-lugar de producción de sentidos, decosmologías, de sociedad que marcó la formación de gran parte de las culturas desde la aparición de laexpresión gráfica de las ideas, permanece como un problema esquivo para la investigación, al menospara la antropología practicada en estas latitudes. Parece una cuestión obturada por el dominanteacúmulo de historias de las ideas, de la literatura, del pensamiento que reactualizan la oposición entreespíritu y materia, estética y sociedad, texto y contexto. Evidencia de ello es la clausura sufrida por lasociología de la literatura, una sub-disciplina tan incómoda para los guardianes del aura del genioliterario nacional.Este dossier busca iluminar esa relación con la certeza de que modela uno de los terrenos másfértiles para repensar el legado de la historia de la cultura en occidente y para generar un basto programade problemas de investigación escasamente explorados por las ciencias sociales y humanas en AméricaLatina, y aplicables al estudio de toda cultura, con o sin escritura.

  7. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2007-04-01

    Full Text Available I am pleased to inform you that in the 8th year of TOJDE are appeared on your screen now as Volume 8, Number: 2. In this issue we published one notes for Editor, 14 articles, two reviews, news and announcements for our readers. 27 authors from ten different countries are placed in this issue. These published articles are from Australia, Bahrain, Bangladesh; Canada Indonesia, Malaysia, Pakistan, Turkey, UK and USA.

  8. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2004-04-01

    Full Text Available Turkish Online Journal of Distance Education-TOJDE April 2004 ISSN 1302-6488 Volume:5 Number:2 -------------------------------------------------------------------------------- From the Editor I am pleased to inform you that Vol.:5, Number:2 issue of The Turkish Online Journal of Distance Education-TOJDE has been issued on the web site http://tojde.anadolu.edu.tr now. TOJDE is meeting with its readers for the 14th time, since 2000 January.First of all I would like to inform you once more that Volume 5 Number:3 will publish as a special theme issue of TOJDE. This issue will be prepare by Patrick Alan DANAHER, Fons NOUWENS, from Learning, Evaluation, Innovation and Development (LEID Centre, within the Division of Teaching and Learning Services, at Central Queensland University (CQU in Australia and Zeynep ERDINC from Anadolu University as a guest co-editors. Call for papers for taht issue finished at 15th March. Now, the selected articles are in reviewing and evaluation phase in process. In this issue, has been given place to two note for editor, eight articles, three book reviews, 9 news, and as being before three links deal with Anadolu University take place in the literature and introducing a journal dealt with DE application. This issue's articles came from Canada, Greece, Turkey and USA (according to alphabetical order.

  9. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2009-04-01

    Full Text Available Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 10, Number: 2. This is the second issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published four notes for Editor, 13 articles, 2 reviews. And this time, 28 authors from 8 different countries are placed. These published articles are from Canada, Gana, India, Iran, Malaysia, Pakistan, United Kingdom and Turkey. “Reflective Approach In Teaching Pre-Degree Chemistry” has sent to editor of TOJDE from India and written by B. Venkateswara RAO and D. Samrajya LAKSHMI from Andhra Pradesh University, Their paper involve an investigation of a chemistry teacher in two years intermediate education in Vijayawada, Andhra Pradesh, India. The teacher was successful in his goal of teaching for understanding because he was effective classroom manager and he had strong science content knowledge that enabled him to focus on instructional strategies that facilitated student understanding. He asked appropriate questions, responded to student questions, and used effective cognitive monitoring strategies. The teacher was able to teach effectively because he had adequate content knowledge and pedagogical content knowledge. The second notes for editor is titled as Study Of Learning Styles And Their Roles In The Academic Achievement Of The Students Of Payame Noor University (PNU” which is written by Mahdi Moeni KIA, Ahmad ALIAPOUR and Esmaeil GHADERI, from Human college, Payame Noor University, Tehran, IRAN. Their paper mentioned that most of male students use verbal and solitary learning styles. Most of female student use aural and verbal learning styles. The academic achievement of female students is more than the academic achievement of male students. Among the students of Payame Noor University, those who use visual learning style have the greatest achievement. Students with social, aural, verbal, and solitary learning styles are in the following ranks

  10. OPM Scheme Editor 2: A graphical editor for specifying object-protocol structures

    Energy Technology Data Exchange (ETDEWEB)

    Chen, I-Min A.; Markowitz, V.M.; Pang, F.; Ben-Shachar, O.

    1993-07-01

    This document describes an X-window based Schema Editor for the Object-Protocol Model (OPM). OPM is a data model that supports the specification of complex object and protocol classes. objects and protocols are qualified in OPM by attributes that are defined over (associated with) value classes. Connections of object and protocol classes are expressed in OPM via attributes. OPM supports the specification (expansion) of protocols in terms of alternative and sequences of component (sub) protocols. The OPM Schema Editor allows specifying, displaying, modifying, and browsing through OPM schemas. The OPM Schema Editor generates an output file that can be used as input to an OPM schema translation tool that maps OPM schemas into definitions for relational database management systems. The OPM Schema Editor was implemented using C++ and the X11 based Motif toolkit, on Sun SPARCstation under Sun Unix OS 4.1. This document consists of the following parts: (1) A tutorial consisting of seven introductory lessons for the OPM Schema Editor. (2) A reference manual describing all the windows and functions of the OPM Schema Editor. (3) An appendix with an overview of OPM.

  11. EDITORIAL: Editor's Farewell

    Science.gov (United States)

    Hudson, R. P.

    1989-01-01

    The completion of Volume 26, 1989, marked the end of my tenure as Editor of Metrologia. My association with the journal, its parent body the Comité International des Poids et Mesures, its host organization the Bureau International des Poids et Mesures, the publishers Springer-Verlag and last (but by no means least) the Editorial Board, has been a pleasant one and I trust that the subscribers will have found the product to be generally satisfactory. There have been, it is true, some disappointments along the way and I shall mention two of these while expressing the hope that the new Editor will enjoy a greater success in their regard. First is the question of circulation, which has stayed dangerously low, although the shrinkage has tapered off in the most recent years. Because of the narrow public support, the costs of production are relatively high and this, through a consequently high subscription rate, tends to enshrine the unsatisfactory state of affairs. Modest schemes to broaden the journal's appeal and bring in a wider readership have foundered upon the first step, namely, that of procuring from staff members of the national standards laboratories the hoped-for articles which would discuss the state of the art in delivering the highest-quality measurement services to the public. However, some very interesting and bolder schemes are presently under discussion. I had also hoped to leaven the journal's content a little by regularly appearing articles on the latest developments within the great national laboratories. But, as with technical review articles, it has proven very difficult to find the right authors who can also spare the time, and only a few laboratories have found it possible to collaborate. In taking my leave, it remains for me to thank all the contributors, referees and readers for their support, to express the hope of an ever brighter future for Metrologia and to wish to the new Editor, Dr D A Blackburn, a happy and successful tenure.

  12. From the Editors

    Directory of Open Access Journals (Sweden)

    Sibel Sakarya Yucel Demiral

    2017-04-01

    Full Text Available Prof. Ray W. Guillery, English Editor of our Journal has passed away… Prof. Guillery (Greifswald-Germany; 1929 is a British physiologist and neuroanatomist. He began his education as a medical student at University College London (UCL. He obtained his BSc and his PhD in Anatomy. Guillery taught at UCL for 11 years. He helped to start the new graduate program in neuroscience in several Universities. In 1989, Guillery was the founding editor-in-chief of the European Journal of Neuroscience. He was Honorary Emeritus Research Fellow at the Anatomical Neuropharmacology Unit at Oxford since 2010.Prof R Guillery joined Turkish Journal of Public Health family with the second issue of 2008 and since then he worked with us for English edition of 24 issues voluntarily;  always in time and with a unique care. He would not only correct English grammar mistakes in manuscripts; but provide significant contribution by indicating unclear points as an interested reader; despite public health was not his area. During time, he developed interest to several public health issues and discussed with us. Ray was not only good in words but numbers; he would detect calculation mistakes in the manuscripts which were missed by reviewers and/or editors. Prof Ray Guillery conducted a course on Scientific Writing in English during National Public Health Congress which was held in Bursa. He has been always keen and generous in sharing his knowledge and experience. He never stopped his works in neuroscience and anatomy and completed his last book a few weeks before passing away.A big loss for scientific world and for our Journal. We express our appreciation for his contribution to our Journal and to all of us. Sibel Sakarya, Yücel Demiral 

  13. From the Editor

    OpenAIRE

    Ugur Demiray

    2006-01-01

    Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared on your screen now as Volume 7, Number: 3. Very much thanks to all of you once more that we met with you 23rd time, since January 2000. In this issue we published one notes for Editor 15 articles like in this issue, three book reviews, news and announcements for our readers. 25 authors from eight different countries are pleaced in this issue. These published articles are from...

  14. From the Editor

    OpenAIRE

    Ugur Demiray

    2006-01-01

    Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared on your screen now as Volume 7, Number: 4. Very much thanks to all of you and TOJDE editorial members once more that we managed to publish TOJDE 25th time, since January 2000. In this issue we published one notes for Editor, 13 articles, two reviews, news and announcements for our readers. 20 authors from seven different countries are placed in this issue. These published articles are from Ba...

  15. From The Editor

    OpenAIRE

    Ugur Demiray

    2013-01-01

    Dear TOJDE Readers, Welcome to the Volume 14 Number: 1 of TOJDE! In this issue, 31 articles of 65 authors from 12 different countries around the world have been published. These published articles are arrived to the TOJDE from Australia, Guyana, India, Indonesia, Iran, Malaysia, Nigeria, Russia, Taiwan, Turkey, USA and Zimba bwe. First all, you should know that if a submission picks up from three TOJDE editors between 4.5 and 9 over all 9 credits, it means that this submission can be publish...

  16. From the Editor

    OpenAIRE

    Ugur Demiray

    2009-01-01

    Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 10, Number: 4. This is the last issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published 3 notes for Editor, 13 articles, 4 book reviews. And this time, 33 authors from 13 different countries are placed. These published articles are from Bangladesh, Egypt, India, Iran, KKTC, Lesotho, Lithuania, Malaysia, Pakistan, Romania, United Kingdom, USA and Turkey.“iPhones and Smartphones” has sent ...

  17. The design of the acetabular component and size of the femoral head influence the risk of revision following 34 721 single-brand cemented hip replacements: a retrospective cohort study of medium-term data from a National Joint Registry.

    Science.gov (United States)

    Jameson, S S; Baker, P N; Mason, J; Gregg, P J; Brewster, N; Deehan, D J; Reed, M R

    2012-12-01

    Despite excellent results, the use of cemented total hip replacement (THR) is declining. This retrospective cohort study records survival time to revision following primary cemented THR using the most common combination of components that accounted for almost a quarter of all cemented THRs, exploring risk factors independently associated with failure. All patients with osteoarthritis who had an Exeter V40/Contemporary THR (Stryker) implanted before 31 December 2010 and recorded in the National Joint Registry for England and Wales were included in the analysis. Cox's proportional hazard models were used to analyse the extent to which risk of revision was related to patient, surgeon and implant covariates, with a significance threshold of p brand of cement/presence of antibiotic, femoral head material (stainless steel/alumina) and stem taper size/offset. However, the risk of revision for dislocation was significantly higher with a 'plus' offset head (HR 2.05, p = 0.003) and a hooded acetabular component (HR 2.34, p designs of acetabular component and sizes of femoral head after adjustment for a range of covariates.

  18. A CDL written intercom editor

    International Nuclear Information System (INIS)

    Marinescu, D.S.; Shirikov, V.P.

    1977-01-01

    This report contains the formalized description of the program EDITOR which is the most important part of the teleprocessing system INTERCOM driving terminals for CDC series 6000 and CYBER computers. CDL (Compiler Description language) is used for this description. EDITOR is a tool for the text file acquisition and modifications. It also gives the possibility to execute some commands to the computer software. The EDITOR independent description may be used for the implementation of EDITOR-like programmes for different types of computers (is particular, small computers)

  19. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2005-09-01

    Full Text Available Greetings Dear readers of TOJDE,I am pleased to inform you that Volume 6, Number: 4 are appearing on your screen now as which is addressed http://tojde.anadolu.edu.tr. Very much thanks to all of you once more that we met 19th time, since January 2000. As we announced in Volume: 6 Number: 3-4 issue, April 2006 issue of TOJDE would published on special issue is to indicate foresight, innovation, and strategy for the future direction of e-learning, more than web-oriented teaching and multipoint videoconferencing, for collaborative, distributed, experiential learning and creation of new knowledge, with youngsters around the world, which hence promote mutual understanding for global peace. Emphasis will be on knowledgeable and inspiring papers (but not limited on the use of GRID networking technology with distributed computer simulation for experiential (hands-on learning through broadband Internet, across national, continental and oceanic boundaries. Subjects are in any fields of e-learning and e-healthcare/telemedicine, in research, case studies, project descriptions, implementation, and reports from the field or book review. I would like to announce for all you, that Volume: 7 Number: 2 will publish as the 4th Special Theme Issue of TOJDE in April 2006. This issue will be prepare by Guest Editor Takeshi UTSUMI, Ph.D., P. E. (Founder and V. P. for Technology and Coordination of Global University System (GUS, USA and Guest Co-Editor Associate Professor Piet KOMMERS (from University of Twente, The Netherlands. In this issue we published 13 articles, three reviews, some news and announcements for our readers. The first article is coming from USA. Author is one of our recent authors; his name is Dr. Scott L. WALKER. This time he wrote on “Modifying Formative Evaluation Techniques For Distance Education Class Evaluation” subject. He indicates in his article that “Post-secondary classes are usually followed by mandatory summative evaluations, yet

  20. From the Editors

    Directory of Open Access Journals (Sweden)

    Sibel Sakarya

    2017-09-01

    Full Text Available From the Editors Dear readers,We are happy to greet you with the August 2017 issue of our Journal. This issue contains two reports and five original articles. The title of the first report is “Roma Health in Edirne: Social Determinants of Health and Health Status”. In their report, Eskiocak et al. investigate the social determinants of health and their health related outcomes among the Roma communities living in Edirne. The second report deals with gender related issues. Doğan et al. investigate the effects of gender inequality on women's lives through a comparison of countries that do and do not implement policies based on gender equality.Original articles in this issue cover many important public health issues. The first, conducted by Koçak et al., investigates the type 2 diabetes risk of primary school teachers and their lifestyle behaviors. Results of the study show that 5.7% out of 975 primary school teachers have a high risk of type 2 diabetes.The second original article entitled “Unintended pregnancies, induced abortions and risk factors in women admitted to hospitals due to birth or abortion in Hatay” was based on a study of 635 women. The results of this study, done by Savaş et al., show an unintended pregnancy rate of 15%. It is further estimated that almost half of all induced abortions are reported as spontaneous abortions. The third article, which was written by Çam et al., is about the frequency of eating disorders in adolescents. This descriptive study, with the participation of 338 high school students, found the frequency of eating disorder attitudes to be 18.3% among the participants. In a descriptive study conducted by Emerce et al., the knowledge and practice of laboratory safety by laboratory analysts and technicians was investigated. It was found that all 93 laboratory workers who participated in the study have failed in some safety practices throughout their careers, and have been eager to get regular

  1. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur demiray

    2008-04-01

    Full Text Available Greetings Dear readers of TOJDE, TOJDE is appeared on your screen now as Volume 9, Number: 2. This is the second issue of the year 2008. In this issue we published 5 notes for Editor, 12 articles, already … reviews and this time 27 authors from twelve different countries are placed. These published articles are from Canada, Bangladesh, Egypt, Ethiopia, Nigeria, Norway, Pakistan, Philippines, South Africa, The United Kingdom, USA and Turkey. “Reflections on screenagers, faculty development and net-supported learning” has been sent from Norway and written by Mike K. MOULTON for Notes for Editor section. He mentioned in his material that strategy for a faculty development program with respect to net-supported learning. Many universities and colleges are struggling with meeting the demands of a rapidly changing world. His reflections are based on experiences from the Norwegian University of Life Sciences. The Second paper has been sent from South Africa, written by Professor Dele Braimoh which is titled as “lifelong learning through mentoring process and its operational dimensions in society”. His paper analyses the varying dimensions of mentoring phenomenon which may be characterized by flexibility of learning process among different groups of people in any given society. He conclude that mentoring is a useful informal and longlife educational process which is not only cost effective, but can also stimulate personal development, increase productivity and improve performance. The third paper on “Development and Validation Process Of A European Language Portfolio Model For Young Learners”, sent by Dr. Ismail Hakki MIRICI from Turkey. He gave a place that various models are being or will be developed and validated in Council of Europe member States depending on the age of learners and national contexts including ELPs for higher and adult education developed by a number of international NGOs. Similarly, every member state should organize

  2. Carta del Editor

    OpenAIRE

    Luis Eladio Proaño

    2015-01-01

    Henos aquí con un nuevo número de RIESED. Después de casi un año de ver la luz, y como lo anticipábamos en la carta del editor que acompañaba al número fundacional, hacer una revista electrónica no ha sido una tarea sencilla. Un año más tarde no podemos sino confirmar esa opinión.Gracias al decidido trabajo de los autores, revisores y miembros del equipo editorial hemos podido hacerlo. El proceso de revisión de los artículos ha merecido un cuidado, dedicación y tiempo especiales, que hicieron...

  3. Letter from the editor

    Directory of Open Access Journals (Sweden)

    Germán A. Prieto G.

    2017-07-01

    Full Text Available On September 2017, two large earthquakes struck México. Numerous casualties and at least 40 buildings collapsed in Mexico City.   The earthquakes are explained by the tectonic setting of Central America, the Cocos plate subducts underneath the North American Plate at about 7-8 cm a year, making Mexico a seismically active region. But the two earthquakes - with hypocenter depths between 50 and 60 km – did not occur in the contact between the two tectonic plates as is usually expected, but rather within the Cocos plate as it bends downward within the mantle. Both events showed a normal faulting mechanism, and although they were widely felt, their major impact was in densely populated Mexico City, where wave amplification is expected due to the geological features of the City's soil structure.   We know that we cannot predict earthquakes, and although this is the holy-grail in seismology, it seems like we are not close to accurately predict them. Nevertheless, early warning systems have been developed in various places, including Mexico, and they were successful in issuing an alarm, although with a few seconds before the strong shaking. These developments can save lives and continue to be relevant and are likely to be implemented in other regions, including the pacific coast of the US. Another aspect that can save lives is people’s awareness. The M7.1 earthquake occurred in the afternoon of the anniversary of the 1985 Michoacan earthquake, just a couple of hours after an earthquake drill in Mexico City, so people had just recently been remained of what to do.  This most likely saved lives.   We should ask ourselves, are we prepared? Is our city prepared?     Germán Prieto Editor in Chief   Carlos A. Vargas Former Editor

  4. CT Assessment of the axial deviation of the femoral and tibial prosthetic components in total knee arthroplasty; Valutazione con Tomografia Computerizzata della rotazione delle componenti femorale e tibiale nell'artroprotesi totale del ginocchio

    Energy Technology Data Exchange (ETDEWEB)

    Rimondi, E.; Molinari, M.; Moio, A.; Busacca, M. [Istituto Ortopedico Rizzoli, Bologna (Italy). Servizio di Diagnostica per Immagini; Trentani, F.; Trentani, P.; Tigani, D. [Istituto Ortopedico Rizzoli, Bologna (Italy). VII Div.; Nigrosoli, M. [Istituto Ortopedico Rizzoli, Bologna (Italy). IV Div.

    2000-06-01

    CT assessment of the axial deviation of the femoral and tibial prosthetic components in total knee arthroplasty. From January to July 1999, 17 patients, 10 males and 7 females, mean age 66 years (standard deviation plus or minus 4) were examined after total knee arthroplasty. Exclusion criteria were prosthesis loosening and severe (equal or superior to 7 degrees) varus o valgus deviation. All patients were examined with knee radiography in the standing position completed by axial projection of patella and by CT scanning. It was used a modification of Berger technique and carried out comparative CT scans extended lower limbs and acquisitions perpendicular to the mechanical axis of the knee, from the femoral supracondylar region down to the plane crossing the distal end of the tibial prosthetic component. Reference lines were then drawn electronically on given scanning planes to reckon the axial deviation of the femoral and tibial prosthetic components. Six patients, one female and 5 males with normal rotational values of femoral and tibial prosthetic components presented no clinical symptoms. Eight patients, 4 females and 4 males, with abnormal values presented the following clinical symptoms: medial impingement, (incomplete) dislocation patella, and lateral instability. One female patient with a normal rotational value of femoral prosthetic component and an altered value of tibial prosthetic component presented medial impingement. Finally two patients, one female and one male, were absolutely asymptomatic although the rotational values of the two prosthetic components were beyond the normal range. Total knee arthroplasty is presently a standard treatment for many conditions involving this joint. There are several possible postoperative complications, namely fractures, dislocations (a)septic losening and femoropatellar instability. The latter condition is the most frequent complication among implant failures and is caused by bad orientation of the femoral and tibial

  5. GUEST EDITORS' INTRODUCTION: Guest Editors' introduction

    Science.gov (United States)

    Guerraoui, Rachid; Vinoski, Steve

    1997-09-01

    The organization of a distributed system can have a tremendous impact on its capabilities, its performance, and its ability to evolve to meet changing requirements. For example, the client - server organization model has proven to be adequate for organizing a distributed system as a number of distributed servers that offer various functions to client processes across the network. However, it lacks peer-to-peer capabilities, and experience with the model has been predominantly in the context of local networks. To achieve peer-to-peer cooperation in a more global context, systems issues of scale, heterogeneity, configuration management, accounting and sharing are crucial, and the complexity of migrating from locally distributed to more global systems demands new tools and techniques. An emphasis on interfaces and modules leads to the modelling of a complex distributed system as a collection of interacting objects that communicate with each other only using requests sent to well defined interfaces. Although object granularity typically varies at different levels of a system architecture, the same object abstraction can be applied to various levels of a computing architecture. Since 1989, the Object Management Group (OMG), an international software consortium, has been defining an architecture for distributed object systems called the Object Management Architecture (OMA). At the core of the OMA is a `software bus' called an Object Request Broker (ORB), which is specified by the OMG Common Object Request Broker Architecture (CORBA) specification. The OMA distributed object model fits the structure of heterogeneous distributed applications, and is applied in all layers of the OMA. For example, each of the OMG Object Services, such as the OMG Naming Service, is structured as a set of distributed objects that communicate using the ORB. Similarly, higher-level OMA components such as Common Facilities and Domain Interfaces are also organized as distributed objects that can

  6. Greetings from the Editor

    Directory of Open Access Journals (Sweden)

    Mohammad Hosein Ebrahimzadeh

    2014-09-01

    Full Text Available It is my great honor announcing the promotion of the Archives of Bone and Joint Surgery (ABJS to the level of being available on the PubMed Central site. Being precise, one year ago in September 2013, we published the first issue of the ABJS. Diligently thereafter, we published four subsequent issues with the fifth being in front of you. We set this as our first goal to reach visibility on PubMed striving to raise the quality. We greatly hope that the orthopedics science may be exalted by this voluntary contribution. Hereby, I would like to specially thank to Sarah Post Calhoun and Wayne Jack Logue, from NLM/PMC, for their continuous support, giving direction, and cooperation. I am grateful to my colleagues, Dr Amir Reza Kachooei; the Managing Editor, Dr Ali Moradi; the Editorial Manager and Saeideh Erfani; the Administrative Staff  for their endeavor and being compassionate in this path. I also would like to thank Dr Farshid Bagheri, Dr Ali Birjandinejad, Dr Farzad Omidi-Kashani and Dr Mohsen Mardani-Kivi;  the Deputy Editors  whose continuous efforts from early 2013 has brought the journal to appreciation of scientific excellence.  My sincere thanks to all Editorial Board members and reviewers, who have contributed towards the excellence of the journal by putting efforts and expending their valuable time to evaluate the submitted manuscripts. I send my special thanks to Iranian Knee Surgery Arthroscopy & Sports Traumatology (ISKAST, Iranian Orthopedic Association (IOA, Iranian Society of Shoulder and Elbow Surgeons, and Deputy of Research at Mashhad University of Medical Sciences for their supports. I would like to thank the prime industry sponsers, Osveh Asia Medical Instrument Co. and Tehran Sutures Co. (Zimmer Distributer in Iran, for their financial support. Again I would like to appreciate all contributing authors particularly my outstanding colleagues who wrote an Editorial for us, Prof. Jupiter from Harvard University, Boston, MA

  7. From the Editor

    Directory of Open Access Journals (Sweden)

    Neven Vrček

    2014-06-01

    Full Text Available Dear authors, readers and future authors,it is my pleasure to present you the 1st number of the 38th volume of the Journal of Information and Organizational Sciences – JIOS.Please allow me one personal note. This is my last issue as an editor. I started in 2008. and it is time to make some changes. I’ll continue to act as a member of editorial board but I am handling over my editorial duty to new editor Alen Lovrenčić. It was pleasure to work with all authors, reviewers and collaborators and please continue partnership with JIOS because we have high aims which cannot be achieved without dedicated scientific community. I would also like to thank the publishing team of JIOS who helped with many operational issues especially: Bernarda Kos, Goran Hajdin and Darko Grabar. In this issue a selection of 3 original scientific papers, 1 survey paper and 1 preliminary communications has been included, all of which have undergone a rigorous double-blind review process in some cases in several rounds.The constant mission of JIOS is to cover scientific publications from broad area of information sciences and related disciplines and we continuously receive many articles in which authors strive to achieve scientific merit. Our review procedure is very strict but even when we decline papers we try to encourage authors in their future work and motivate them to give better results. That is why we maintain very good relations with our authors and we invite all of you to extend cooperation with JIOS.We hope that the variety of themes will draw the attention of researchers in different fields of information sciences and motivate potential authors to expand the Journal’s thematic scope by other themes that may be of interest to the wider ICT research community. These themes motivate us to continue our work of delivering research results to interested audience. The ICT field is changing rapidly and we are constantly searching for cutting edge articles that open

  8. From The Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2013-01-01

    Full Text Available Dear TOJDE Readers, Welcome to the Volume 14 Number: 1 of TOJDE! In this issue, 31 articles of 65 authors from 12 different countries around the world have been published. These published articles are arrived to the TOJDE from Australia, Guyana, India, Indonesia, Iran, Malaysia, Nigeria, Russia, Taiwan, Turkey, USA and Zimba bwe. First all, you should know that if a submission picks up from three TOJDE editors between 4.5 and 9 over all 9 credits, it means that this submission can be published in TOJDE in the coming issue. However, since the publishing priority of the accepted papers belongs to the highest scored ones, submissions which receive a score between 4.5 and 5 or 6 may wait and be archived for publishing later on. TOJDE administration respected this publishing rule up to now. Therefore, some accepted submissions which obtained over 4.5 have not been published up to now. Some of these submissions were waiting for publishing in TOJDE in the future sice 2011. In this issue, we decided to give them a chance to be published. For this reason that becoming end of the year of 2012, more papers for this issue included me than the previous issues. The 1st article arrived from Nigeria and written by Sunday O. ADEGBESAN, from Training and Research Fellow, National Institute for Educational Planning and Administration (NIEPA, on “Effect Of Principals’ Leadership Style On Teachers’ Attitude To Work In Ogun State Secondary Schools, Nigeria ". The purpose of this study was to investigate why some principals prefer to embrace certain leadership styles and the effect of such styles on the teachers’ attitude to work. In the 2nd article is mentioned in their context, especially web-based learning comes forward. Web-based learning can be defined as an information technology-enabled and supported form of distance learning in which the traditional restrictions of classroom learning have disappeared. The Internet can be a useful aid in teaching

  9. From the Editor

    Directory of Open Access Journals (Sweden)

    Senar, J. C.

    2014-12-01

    Full Text Available In 2001, the Natural History Museum of Barcelona remodelled its journal Miscel·lània Zoològica as Animal Biodiversity and Conservation. One of the aims of this change was to obtain an impact factor, the index that characterises the international ranking of journals. This milestone was reached some years later, in 2012, having published 291 articles that have been cited in impact journals 1,626 times. Two of these papers have been cited more than 100 times. We are now ready to take the next step forward. Our new challenge is to increase our impact factor so that Animal Biodiversity and Conservation is comparable with prestigious international journals in the field. To meet this objective we have assembled a team of editors with international recognition, and we will continue to expand this team over time. We have sought support from the most prestigious Spanish scientific societies and three have accepted the task: the Spanish Society of Ethology, the Spanish Association of Terrestrial Ecology, and the Spanish Society of Evolutionary Biology. These societies have named thematic editors who will help us strengthen their respective disciplines. This means that we will also expand the range of fields covered in the journal in future, interpreting the expression animal biodiversity in the journal´s title in its widest sense. Another front that we have opened to boost Animal Biodiversity and Conservation is the new webpage, remodelled for use as a medium to post our published papers. With this move we not only hope to improve our services to readers but also look towards open access, open access in its broadest conception, offering the journal to scientists, both readers and authors, free of charge. If we want science and the knowledge it generates —produced with public money— to belong to us all, we not only have to enable everyone to read it but we also have to help everyone publish, independently of their economic state. These are difficult

  10. Letter from the Editor

    Directory of Open Access Journals (Sweden)

    Germán A. Prieto

    2018-01-01

    Full Text Available Letter from the editor Our first issue of 2018 is available now. We have 9 articles in this issue, in topics ranging from soil characterization, petrophysical properties of rocks, signal processing of images and GNSS station to asteroid impact effects. Mechanical soil properties in sandy-pebble soil are studied as a function of grain size content in Lu et al. Satellite-derived soil moisture estimation is discussed in Thanabalan and Vidhya, based on a semi-empirical approach and backscattering images. Macroscopic mechanical characteristics of rocks depend on a number of factors, including microstructure damage. Under changing temperature conditions (freeze-thaw rock samples studied by Jiang show significant strength decrease, which has important consequences in engineering. Advanced signal processing methods are used in Zeng et al. for image retrieval applied to remote sensing data, using a Bayesian network approach. Similarly, Oktar and Erdogan use linear trend and wavelet analysis to continuous GNSS data showing both displacements due to tectonic as well as atmospheric and hydrologic effects. Debris flows can in some cases become serious hazards because they can block river flow as a debris flow dam. Chen et al. propose a method to identify the formation of such dams, with an example from the Er river in Taiwan. Mamaseni et al. study the petrophysical properties of three formations in the Duhok Basin, northern Iran, based on well-log data. Results suggest a significant thickness with good moveable hydrocarbons in the study area. Methane adsorption and gas content are strongly influenced by shale composition. Zhu et al. show that Total Organic Content has a stronger influence on methane adsorption and gas content than the mineral composition, studying samples from the southern Sichuan Basin. Our last contribution in this issue discussed a large asteroid impact in eastern Colombia. The impact would have affected the environment and landscape, but

  11. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur DEMIRAY

    2006-04-01

    Full Text Available Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared on your screen now as Volume 7, Number: 1. Very much thanks to all of you once more that we met with you 22nd time, since January 2000. In this issue we published 15 articles like before issue, three book reviews, news and announcements for our readers. And also, we cancelled for the Call for Papers to the 4th Special Issue of The Turkish Online Journal of Distance Education (Volume: 7, Number: 2 which would be delivered in April 2006, instead of this issue, for the reason that have not enough quality papers for publishing on special theme. 36 authors from eight different countries are pleaced in this issue. These published articles are from Bangaldesh, Brasil, Canada, India, Malaysia, Nigeria, Turkey, UK and USA In this issue two articles are dealt with English Language Teacher Training (DELTT Program application in Turkey, by Anadolu University. I gave a place to them as the fist and the last article. The first article of this issue is coming from The Anadolu University, which is written by Belgin AYDIN and T. Volkan YUZER. They are assistant professor at Anadolu’s Education and Open Education Faculty. Their article titled as “Building a Synchronous Virtual Classroom in a Distance English Language Teacher Training (DELTT Program in Turkey”. Their paper reports a synchronous project, “the virtual classroom” prepared for the Distance English Language Teacher Training (DELTT Program. The process of developing the synchronous project and the interface with its specific components were reported with examples and supported by theoretical background from the related literature. The evaluation of the project concludes that the virtual classroom facilitated increased authentic interaction and encouraged learners to become more autonomous. Second article is dealt with internet use adoption among academicians which is written as joint article

  12. Letter from the Editor

    Science.gov (United States)

    Strassmeier, Klaus G.

    2009-01-01

    As of 2007, Astronomische Nachrichten -- Astronomical Notes has reached its all-time high regarding the ISI journal impact factor, with an impressive increase of 60% compared to 2005. We now rank at 1,461, as shown in the statistics below. This is solely due to the increased quality of the published articles: In 2006, Astronomische Nachrichten -- Astronomical Notes published 208 research papers and received 1,033 citations -- five citations per paper on average. In 2007, we have published 177 research papers with roughly the same number of citations. In co-operation with Wiley InterScience we have achieved an average online publication time of just 4.5 months. We hope that the year 2008 will be comparably prosperous. As in the past, publication in Astronomische Nachrichten -- Astronomical Notes continues to be free of charge. Also, all articles of the first issue of each volume can be downloaded free of charge, as can all articles labelled ``Editor's Choice'', which are additionally featured with a color image on the front cover.

  13. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2012-01-01

    Full Text Available Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 13 Number: 1 In this issue it is published 5 notes for Editor, 16articles, 2 books reviews a nd this time, 53 authors from 12 different countries are placed. These published articles are from Azerbaijan, Bangladesh, Greece, Iran, Malaysia, Morocco, Nigeria, Pakistan, Turkey, UAE and USA.The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on Simply including a narrative component may provide enough creative ammunition for students to feel that a particular assignment can be more interesting (Clark 2010, if their work is to be wrapped around a narrative format, such as a short story in favor of an essay or formal writing. But there are numerous free technology tools available today that take the process one step further, by injecting different editing options and high-end production values. Students do not merely assemble a story in words. They can now do it primarily with images, and many of the slideshow services online allow for text captions, dynamic transitions, special effects, and relevant animations. Students become videographers and directors as much as they function as storytellers. The slideshow builders thus do a better job than “old fashioned” essay/short story assignments at meeting the need of 21st century students, many of whom arrive at institutions of higher learning with at least an already-ingrained interest in such tools, if not explicit experience.The following note is that a review of existing literature pertaining to servant leadership and faculty development. Specifically, this work discussed delivering servant leadership to online faculty through the utilization of a faculty development program. The idea for this literature review stemmed from the author asking how an online academic administrator could utilize the practice of servant leadership in order to improve the overall online academic

  14. GUEST EDITOR'S INTRODUCTION: Guest Editor's introduction

    Science.gov (United States)

    Chrysanthis, Panos K.

    1996-12-01

    Computer Science Department, University of Pittsburgh, Pittsburgh, PA 15260, USA This special issue focuses on current efforts to represent and support workflows that integrate information systems and human resources within a business or manufacturing enterprise. Workflows may also be viewed as an emerging computational paradigm for effective structuring of cooperative applications involving human users and access to diverse data types not necessarily maintained by traditional database management systems. A workflow is an automated organizational process (also called business process) which consists of a set of activities or tasks that need to be executed in a particular controlled order over a combination of heterogeneous database systems and legacy systems. Within workflows, tasks are performed cooperatively by either human or computational agents in accordance with their roles in the organizational hierarchy. The challenge in facilitating the implementation of workflows lies in developing efficient workflow management systems. A workflow management system (also called workflow server, workflow engine or workflow enactment system) provides the necessary interfaces for coordination and communication among human and computational agents to execute the tasks involved in a workflow and controls the execution orderings of tasks as well as the flow of data that these tasks manipulate. That is, the workflow management system is responsible for correctly and reliably supporting the specification, execution, and monitoring of workflows. The six papers selected (out of the twenty-seven submitted for this special issue of Distributed Systems Engineering) address different aspects of these three functional components of a workflow management system. In the first paper, `Correctness issues in workflow management', Kamath and Ramamritham discuss the important issue of correctness in workflow management that constitutes a prerequisite for the use of workflows in the automation

  15. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2006-10-01

    Full Text Available Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared on your screen now as Volume 7, Number: 4. Very much thanks to all of you and TOJDE editorial members once more that we managed to publish TOJDE 25th time, since January 2000. In this issue we published one notes for Editor, 13 articles, two reviews, news and announcements for our readers. 20 authors from seven different countries are placed in this issue. These published articles are from Bangladesh, Germany, Greece, India, Nigeria, South Korea and Turkey.In the “Notes for Editor” section, Dr KURT’s excutive summary is placed via title “Comparative Analysis f Virtual Education Applications”. Dr. Mehmet KURT from Ankara University, Department of Educational Sciences Program of Curriculum and Instruction TURKEY. This summary is his doctorate thesis which is completed on March 2006 at Ankara University. He emphasizes that while in the teaching process they use both synchronous and asynchronous presentation technologies; in order to support course content they use e-mail, web, cd, and course book technologies to provide basic learning environment function; they prefer different environments to cover face to face education needs; they take self learning and collaboration as basis and they take projects and term paper evaluations serious; they mostly prefer multiple choice tests and they usually make virtual courses exams through the internet. Regarding the characteristics of their institutions’ applications, the study group have agreed on mostly to connection and being dependent on connection opportunities. A significant difference between their institutions’ characteristics and the model for developing computer labs, when they had started to provide virtual lessons and presentation technologies used has been found.The first article of this issue is coming from Hellenic Open University, GREECE which is written by Paraskevi VASSALA. In

  16. Carta del editor

    Directory of Open Access Journals (Sweden)

    Oscar Mauricio Covarrubias-Moreno

    2014-05-01

    Full Text Available Henos aquí con un nuevo número de RIESED. Después de casi un año de ver la luz, y como lo anticipábamos en la carta del editor que acompañaba al número fundacional, hacer una revista electrónica no ha sido una tarea sencilla. Un año más tarde no podemos sino confirmar esa opinión.Gracias al decidido trabajo de los autores, revisores y miembros del equipo editorial hemos podido hacerlo. El proceso de revisión de los artículos ha merecido un cuidado, dedicación y tiempo especiales, que hicieron necesario demorar unos días la fecha de publicación de este tercer número. Asumimos un compromiso con la calidad y estamos convencidos que esa es la única posibilidad de éxito para una revista científica. El contenido y nivel de los artículos disponibles servirá sin duda como incentivo para que los investigadores deseen publicar sus aportes en RIESED.Agradezco especialmente a la Dra. Gloria Rosique Cedillo, Editora Invitada y Coordinadora de este tercer número, así como al investigador César Nicandro Cruz-Rubio, Editor Asociado, apreciados colegas con quienes he tenido el privilegio de trabajar a lo largo de estos meses, y cuya dedicación y esmero han hecho posible RIESED 3.Por otra parte, derivado de nuestro proyecto editorial informo a ustedes de la creación de la Cátedra RIESED. Educación y Sociedad. Esta Cátedra es una iniciativa que la Universidad del Desarrollo Empresarial y Pedagógico ha impulsado en estrecha colaboración con el Grupo de Investigación en Gobierno Administración y Políticas Públicas (GIGAPP del Instituto Universitario de Investigación Ortega y Gasset (IUIOG, Fundación Ortega – Marañón; así como, con la Academia Internacional de Ciencias Político Administrativas y Estudios de Futuro A.C.La Cátedra está concebida como un espacio de diálogo y reflexión interdisciplinario sobre las diferentes temáticas abordadas en RIESED. En el marco de esta iniciativa académica, se invita a los miembros

  17. Editor's Comment and Announcement.

    Science.gov (United States)

    Bortolussi, Robert

    2017-12-17

    It is hard to believe but Clinical and Investigative Medicine (CIM), the official journal of Canadian Society for Clinical Investigation (CSCI), will soon celebrate its 40th birthday!  Over these past four decades, CIM has been the premier journal for Canadian clinician scientists; publishing over 1,000 articles on breakthroughs and major advances from Canada and around the world.  We are listed on Medline, PubMed and the Library of Science. We have been, and will continue to be, an independent journal. To celebrate this auspicious occasion, we have plans to become an even bigger showpiece for national and international clinical advances. We want to connect more closely with Canadian clinician scientists and trainees and we particularly want to encourage more Canadian publications. Changes will soon be coming to CIM with several new features: Newsletter with announcements and news on activities of interest to clinician scientists and trainees; Focused Reviews on specific areas of research; Reflections on work and life experiences of trainees and senior clinician scientists; Methods Papers describing novel methods anticipated to be useful for others; and  Guidelines or Recommendations on clinical care that are endorsed by a Canadian Medical or Surgical Society. Starting in 2018, we will be publishing on a quarterly basis. This will help to ensure we will focus on important breakthroughs and commentaries. However, we are also planning a special edition in the autumn to commemorate the 40th birthday. Stay tuned! Of course CIM will continue to publish original papers on discoveries in pathophysiology, prevention, management, treatment and outcome of clinical problems confronting clinicians in Canada and around the world.  Please join us as we embark on these changes and a new era for CIM, Robert Bortolussi Clinical and Investigative Medicine (CIM) Editor in Chief.

  18. From the Editor

    Directory of Open Access Journals (Sweden)

    Željko Hutinski

    2012-07-01

    Full Text Available All the papers in this issue of the JIOS Journal may fit into the Science as Usual categoryand are therefore not going to be dealt with in detail in the introduction. However, for oneof the papers included an exception has been provided, namely the paper Sigma-notationand the equivalence of P and NP classes by Miron Ivanovich Telpiz. The circumstancesleading to its publication in this issue of JIOS are presented by the editors in this preface.It is generally acknowledged that, ever since it was defined by S. Cook over thirty yearsago, P = NP has presented one of the major open problems in computing science andinformation science in general. Whereas, on one hand, this problem presents a formidablechallenge to any scientist dealing with it, its solution, especially in case it should turn out tobe a positive one considering that current technology tends to evolve in a practicaldirection and its overall functioning is conducted implicitly under the assumption of anegative solution would have a major impact on the development of informationtechnology as well as the wider context of human society as a whole. Apart from being putforward in conferences, both positive and negative “solutions” to P = NP problem can beoccasionally found in press, scientific and professional journals. The web page titled “Pversus-NP Page” (see http://www.win.tue.nl/~gwoegi/P-versus-NP.htm provides anexcellent source for this issue. It contains links to papers stating that P = NP, as well asthose contradicting the opposite, i.e., stating that P NP. Furthermore, references are givento Oded Goldreich's rationale behind his decision not to review papers proposing solutionsto P = NP problem and related difficult problems because, in his own words, they “alsoattract the attention of non-experts, and one annoying consequence is a flood of falseclaims of resolutions of these problems” (see http://www.wisdom.weizmann.ac.il/~oded/faq.html. Dr. Goldreich a recognised

  19. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2013-10-01

    -semester study. Data were collected from the first and final drafts of writing assignments, written peer comments, a questionnaire and an interview. While the document analysis was the main data collection method, a questionnaire and an interview provided crucial information. The results revealed that the nature of students’ feedback focused on content more than grammatical errors. However, quantitative analyses of the peer comments and revisions to the drafts show that feedback given on Facebook had an effect on improving revised drafts. There was statistically significant improvement in the revised drafts which was linked to peer feedback. Finally, the analysis of interviews indicated positive attitude on the use of Facebook for peer feedback in the English class. The 20th article is again from India on Assessment Of E-Learning Needs Among Students Of Colleges Of Education, written by Hamid Mohammad AZIMI, Research Scholar in Education Department of Studies in Education, University of Mysore, Mysore. This study is a descriptive and survey type work. Main objective of this research is to explore e-learning system components needs among students of colleges of education (one year Bachelor of Education or B.Ed. degree programme affiliated by University of Mysore, India. Needs assessment is one of the main investigative tools used by institutions to the identification of actual needs, gaps, and hidden parts in the system and other activities. Through a comprehensive needs assessment process, an institution can establish its e-learning goals. Based on this view, a researcher made questionnaire was designed and validated by experts in teacher education, ICT and e-learning field. For reliability of the tool a pilot test was carried and the Alpha Cronbach value found .8980 and classified as having acceptable. Researcher tried to find out the most high and the lowest ranks in needs of students. Also gender, type of institutions on dependency to government financial aids, types of

  20. FROM THE EDITOR

    Directory of Open Access Journals (Sweden)

    Cemil Ozturk

    2014-10-01

    ısı” (Social Studies Teachers’ Perceptions of Tolerance and Feryal Çubukçu “Values Education Through Literary Texts”. These valuable papers have potential to contribute the literature on social studies education. One of the main aims of ASSE was to establish a regular scientific event through which social studies educators from Turkey and abroad get together to share their academic works and ideas. In conjunction with the Faculty of Education of Bolu Abant Izzet Baysal University we are organizing the Fourth International Symposium on Social Studies Education (ISSE in April 2015. The main theme of ISSE the 4th is “Peace Education”. The preference of this theme emphasizes on our hopes and determination for our envision for peace in the late Ottoman geography, in which guns have still been on fire and people have still been shedding tears. And this could be regarded as something similar to the action of Mustafa Kemal Pasha who thought of about the reconstruction of the country after the war and assembled an “Educational Congress” in Ankara to discuss educational issues, during the most difficult days of the War of Independence in 1921. Adopting this approach, we have been considering putting effort to institutionalize the values of democracy, human rights, justice, freedom of thought and freedom of conscience. As a final remark, I would like to thank everyone who contributed to the production of this issue and special thanks to Assoc. Prof. Dr. Erkan Dinç who acted as issue editor. Best regards and hope to meet you in ISSE the 4th…

  1. From the Guest Editor

    Directory of Open Access Journals (Sweden)

    Milun Babić

    2010-01-01

    ordinary, but I would like to use this occasion to emphasize that for successful development and international appearance of the Serbian researchers in the area of thermal science, energy and energy efficiency science we owe a lot to Professor Simeon Oka, Ph. D. (chief and executive editor of the journal Thermal Science and professor Milan Radovanović, Ph. D. (president of the Society of Thermal Engineers of Serbia. Gratitude that we have is not only for their effort as researchers and creative and challenging education, but also for the founding and guidance of Thermal Science, today internationally known and appreciated science journal. This long term editing work that professor Oka and professor Radovanović nurse within the Society of Thermal Engineers of Serbia became window to world for Serbian researchers. Publishing the scientific article in the journal Thermal Science today is not only the major research event for domestic scientists but for the researchers all over the world. About excellent science and nurture characters of professor Oka and professor Radovanović is saying a lot the decision to dedicate this special issue of the journal Thermal Science to fifty anniversary of Faculty of Mechanical Engineering in Kragujevac. This decision was greeted by the employees of MFKG as a special and dear acknowledgment for their effort during fifty years long research work.

  2. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2011-10-01

    Full Text Available Dear readers of TOJDE,TOJDE appears on your screen now as Volume 12, Number: 4. In this issue it publishes 5 notes for Editor, 10 articles, 2 book reviews. And this time, 33 authors from 10 different countries are placed. These published articles are from Bangladesh, Ethiopia, India, Malaysia, Nigeria, Pakistan, Saudi Arabia, Turkey, UAE and USA. The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on Google+ is like Twitter in that anyone can follow a given user‘s posts. There is no direct ―friend‖ relationship required to read the posts written by others. However, it also approximates some features of Facebook. Rather than friends sorted into ―lists‖ like in Facebook, Google+ allows users to place feeds into one or more ―circles,‖ the better to monitor (or control the flow of information to and from different audiences. Circles are more intuitive, and more central to the experience, than the Facebook lists. They provide an explicit organizational structure, compared to the less-obvious listing functionality, which feels like an afterthought, found in Facebook. The second notes for editor is titled as ―Learning Community In Online Education‖ which is written by Ziad D. BAGHDADI, Faculty, Riyadh Colleges of Dentistry & Pharmacy, Riyadh, SAUDI ARABIA, Faculty, Damascus University Dental Faculty, Damascus, SYRIA. This paper discusses establishing learning communities early in online education and their helps in bridging distances and differences between physical and virtual worlds of teaching and learning. This article sheds light on the importance of learning communities, and gives readers advices for creating communities that connect, engage, and inspire. Several tools for assessment of learning are provided to appraise online learning communities‘ benefits to learners at all levels. ―Investigating The Effect Of Asynchronous Discussions On Students‘ Learning And Understanding Of

  3. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2011-04-01

    Full Text Available Turkish Online Journal of Distance Education-TOJDE April 2011 ISSN 1302-6488 Volume: 12 Number: 2 from EditorGreetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 12, Number: 2. In this issue it is published 4 notes for Editor, 14 articles, 1 book review. And this time, 43 authors from 10 different countries are placed. These published articles are from Austrlia, Bangldesh, India, lndonasia, Iran, Malaysia. Pakistan, Serbia, Turkey and USA.The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on Google Moderator and Other Clicker Alternatives. In their notes they mentioned that Students register the device on the company Web site, and the instructor synchronizes the database in order to know which students have registered devices, thus creating accountability for “quizzes” in class. During the lecture, students “vote” for multiple choice answers on screen, and real-time results are displayed (anonymously after the polling is finished, providing instant formative feedback. Another model is for a department or institution to purchase clickers and make available in the classroom. Students pick up the clicker as they enter the room each day and replace when exiting. Using this approach does not allow for direct accountability, unless students are registered to a specific number on the clicker, which is documented and tracked. The second notes for editor is titled as “The Effect Of Virtual Versus Traditional Learning In Achieving Competency-Based Skills” which is written by Leili MOSALANEJAD, Sakine SHAHSAVARI and Mehdi DASTPAK from IRAN. In this quasi-experimental study, 86 freshman nursing students were recruited. Nursing Fundamentals and Skills (including theoretical and practical credits was decided as the teaching course. The theory and practical contents were taught in one group by conventional method (face to face teaching, demonstration on moulage and for another

  4. Letter to the Editor

    Science.gov (United States)

    We would like to express several concerns regarding the article “Efficacy of vaccination of cattle with the Leptospira interrogans serovar Hardjo type hardjoprajitno component of a pentavalent Leptospira bacterin against experimental challenge with Leptospira borgpetersenii serovar Hardjo type hardj...

  5. Femoral head avascular necrosis

    International Nuclear Information System (INIS)

    Chrysikopoulos, H.; Sartoris, D.J.; Resnick, D.L.; Ashburn, W.; Pretorius, T.

    1988-01-01

    MR imaging has been shown to be more sensitive and specific than planar scintigraphy for avascular necrosis (AVN) of the femoral head. However, experience with single photon emission CT (SPECT) is limited. The authors retrospectively compared 1.5-T MR imaging with SPECT in 14 patients with suspected femoral head AVN. Agreement between MR imaging and SPECT was present in 24 femurs, 14 normal and ten with AVN. MR imaging showed changes of AVN in the remaining four femoral heads. Of these, one was normal and the other three inconclusive for AVN by SPECT. The authors conclude that MR imaging is superior to SPECT for the evaluation of AVN of the hip

  6. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2009-10-01

    Full Text Available Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 10, Number: 4. This is the last issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published 3 notes for Editor, 13 articles, 4 book reviews. And this time, 33 authors from 13 different countries are placed. These published articles are from Bangladesh, Egypt, India, Iran, KKTC, Lesotho, Lithuania, Malaysia, Pakistan, Romania, United Kingdom, USA and Turkey.“iPhones and Smartphones” has sent to editor of TOJDE from, USA and written by Kevin YEE & Jace HARGIS from University of the Pacific, California. Their paper involve that the iPhone has become a juggernaut in the United States, with 13 million units sold in 2008 (a 245% increase over 2007 and a further 45 million units expected in 2009 (Elmer-DeWitt, 2009. While iPhone still lags Nokia and RIM internationally, the overall trend toward mobile computing becomes firmer by the day, and it behooves educators to become familiar with the cell phone tools that are relevant for teaching in tomorrow’s -and increasingly “today’s”- classroom.The second notes for editor is titled as “Indian School Teachers’ Perspective On Globalisation of Education A Case Study of Atomic Energy Education Society School Teachers ” which is written by Dr. M. RAJESH and SINDHU. P. NAIR, from Indira Gandhi National Open University. They mentioned in their paper that globalisation has become an enduring reality of our times and more so in the field of education. Teachers are the harbingers of change in the global economy and school teachers have a major role in shaping the attitude of the society towards all social and economic phenomena including that of globalisation. At the Regional Centre of IGNOU situated at Cochin, Kerala an unique training programme was conducted for a year to train school teachers of the Atomic Energy Education Society (AEES one of the elite educational organisations of the country

  7. Message from the Editor

    Science.gov (United States)

    Stambaugh, Ronald D.

    2013-01-01

    reviewed five manuscripts in the period November 2011 to December 2012 and provided excellent advice to the authors. We have excluded our Board Members, Guest Editors of special editions and those referees who were already listed in recent years. The following people have been selected: Marina Becoulet, CEA-Cadarache, France Jiaqui Dong, Southwestern Institute of Physics, China Emiliano Fable, Max-Planck-Institut für Plasmaphysik, Germany Ambrogio Fasoli, Ecole Polytechnique Federale de Lausanne, Switzerland Eric Fredrickson, Princeton Plasma Physics Laboratory, USA Manuel Garcia-Munoz, Max-Planck-Institut fuer Plasmaphysik, Germany William Heidbrink, California University, USA Katsumi Ida, National Inst. For Fusion Science, Japan Peter Stangeby, Toronto University, Canada James Strachan, Princeton Plasma Physics Laboratory, USA Victor Yavorskij, Ukraine National Academy of Sciences, Ukraine In addition, there is a group of several hundred referees who have helped us in the past year to maintain the high scientific standard of Nuclear Fusion. At the end of this issue we give the full list of all referees for 2012. Our thanks to them!

  8. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2006-07-01

    Full Text Available Greetings Dear readers of TOJDE, I am pleased to inform you that in the 7th year of TOJDE is appeared on your screen now as Volume 7, Number: 3. Very much thanks to all of you once more that we met with you 23rd time, since January 2000. In this issue we published one notes for Editor 15 articles like in this issue, three book reviews, news and announcements for our readers. 25 authors from eight different countries are pleaced in this issue. These published articles are from Bangaldesh, Canada, India, Moldova, Nigeria, Uganda, South Africa, Turkey and USA.The learning organization concept is getting more important in our life day by day at any fields of professionalism, especially for education institution. In this millennium its impotency is increasing in the name of virtual learning environments too. In this issue I gave a place one Notes for Editor from Turkey, Anadolu University. It is written by Assoc. Prof. Dr. Deniz TASCI on the subject that “Online Learning Programs as Learning Organizations: A Case Study of Information Management Programs at Anadolu University, Turkey”. She indicates in her notes that the results of a study in which facilitators’ attitudes toward effectiveness of various media used in the Information Management Associate Degree Program (IMP of Open Education Faculty at Anadolu University, Turkey. The study has shown that textbooks are not viewed as efficient as multimedia programs and web environments by facilitators although they indicate that textbooks should still be used in online courses. The participants also found multimedia programs distributed on CDs more effective than the web environments. The first article of this issue is coming from National Open University of Nigeria, which is written by Olugbenga David OJO and Felix Kayode OLAKULEIN. Their article titled as “The Place of Multiple Intelligence in Achieving the Objectives and Goals of Open and Distance Learning Institutions: a critical analysis

  9. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2008-01-01

    Full Text Available Greetings Dear readers of TOJDE, I am pleased to inform you that in the 8th year of TOJDE finished and TOJDEis appeared on your screen now as Volume 9, Number: 1. This the first issue of the year 2008. As you know the volume 8 Number 3 was the special issue of TOJDE on “Web 2.0 and Social Software in Distance Education” subject. During 6 months I received more than 45 submissions. Some of them rejected by me for the reason that their subjects were not fit for TOJDE’s publishing content strategy and policy, and some of them rejected by TOJDE’s editors. And others can be publish this year’s issues In this issue we published one notes for Editor, 15 articles, already three reviews and this time 24 authors from ten different countries are placed in this issue. These published articles are from Austria, Bangladesh, Egypt, Greece, India, Iran, Jordan, Nigeria, Pakistan and Turkey. GET A SECOND CHANCE TO MAKE A FIRST IMPRESSION: Eradicate the Poverty Level of the Women Farmer in Bangladesh has been sent from Bangladesh Open University and written by Zobaida AKHTER, Ph.D. for Notes for Editor section. She mentioned in her material argues that efforts to promote women in farming are confronted by challenges including poverty, misconception regarding education, training, farming etc. The paper also states that the utilization and development of distance education would effectively address the problem of education and training aimed at rural women. The first article of this issue is coming from Vienna, AUSTRIA, Wegener Center for Climate and Global Change at Graz University, FH Joanneum Graz, and Federal Environment Agency written by Gilbert AHAMER on “Virtual Structures For Mutual Review Promote Understanding Of Opposed Standpoints” . Gilbert metion ih his paper that , in level 2 of SGC students write, review, assess and update standpoints while making use of a web based discussion forum. A statistical analysis of student activities is

  10. Comments by the Editors

    Science.gov (United States)

    Fleetwood, Dan M.; Brown, Dennis; Girard, Sylvain; Gerardin, Simone; Quinn, Heather; Kobayashi, Daisuke; Esqueda, Ivan Sanchez; Robinson, William; Moss, Steven

    2017-08-01

    The August 2017 special issue of the IEEE Transactions on Nuclear Science contains more than 40 selected, peer-reviewed, journal articles that were prepared on the basis of presentations made at the 2016 Conference on Radiation and Its Effects on Components and Systems (RADECS) held on September 19-23, 2016, in Bremen, Germany. A few additional papers may appear in subsequent issues of the Transactions. A full conference record of RADECS 2016 will also be available in the IEEE Xplore.

  11. Frof Guest Editors

    Directory of Open Access Journals (Sweden)

    Mark J. W. LEE

    2007-07-01

    the role of universities as content producers for credentialed learning to be questioned, prompting many educators to explore new ways of supporting online learning. The sixth article from Palitha Edirisingha (UK, Chiara Rizzi (Italy, Ming Nie (UK and Libby Rothwell (UK report on a study involving the use of podcasting (Curry, 2004 to provide teaching and learning support for an undergraduate module on English Language and Communication. The findings led to development of a model for integrating podcasts in on-campus blended learning, and which can have potential applications in distance learning contexts. The model is based on three main features of podcasts identified as facilitating student learning: learner choice and flexibility offered by podcasts; tacit knowledge and experience of peers conveyed in discussions; and a sense of informality brought into formal learning. Also from the implementation perspective, Penny de Byl and Janet Taylor (Australia describe a Web 2.0/Web3D hybrid e-learning platform, called the AliveX3D platform, which involves the application of the Web 2.0 ethos to an online 3D virtual environment. The platform and accompanying tools are designed to enable the creation of authentic learning experiences with a large degree of learner control, and to promote collaborative dialogue between learners. The immersion in the 3D worlds enables learners to negotiate meaning based on their own personal cognitive, affective and kinaesthetic experiences rather than relying merely on descriptions of others’ experiences. Last but not least, the “Notes to the Editor” section contains a contribution from Yavuz Akbulut and Mübin Kiyici (Turkey, on the instructional uses of blogs. And two book reviews from the field. We hope you enjoy reading this contributions, and welcome your feedback, rejoinders and reflections on the various articles contained within this special issue. Mark J. W. LEE and Hakan G. SENELGuest Editors, July 2007 Acknowledgements

  12. Medical Editors Trial Amnesty (META)

    African Journals Online (AJOL)

    may change jobs, with the result that important work remains unfinished; or investigators may discover a recently published trial on the same topic and conclude that their own results are now redundant. Editors must also take some responsibility. There is a limit to the number of reports we can publish and sometimes we are ...

  13. From the Editor

    Directory of Open Access Journals (Sweden)

    Ugur DEMIRAY

    2011-08-01

    , Bogazici University, Istanbul,TURKEY. This paper examines the emerging ideas to implement the usage of Second Life as an educational tool in a wide range of subject areas. The majority of the information used to create these 10 pedagogical approaches was derived from a series of participative inquiries, personal observations, formal and informal interviews, and documenting the perceptions of teachers and students using (and trying to use Second Life as an educational tool. Ten pedagogical approaches have emerged thus far. Each section briefing explains the concept, illustrates the idea with examples, and provides implementation suggestions. The sixth article from USA on “USE OF SECOND LIFE IN K-12 AND HIGHER EDUCATION: A Review of Research”, written by Chris INMAN, Vivian H. WRIGHT & Julia A. HARTMAN, from The University of Alabama, USA. This artile is published in Journal of Interactive Online Learning, Volume 9, Number 1, Spring, 2010 and republished by official permission of JIOL Editor-in-Chief’. This study reviewed empirical research conducted in Second Life by educators since Second Life’s launch in 2003. The study’s purpose was to identify how Second Life is being used in both K-12 and higher education. The methodology, findings, and recommendations of 27 research studies were analyzed. Researchers identified potential problems when using Second Life in education, including issues with the Second Life software and hardware requirements, a steep learning curve, and the possibility of students becoming exposed to distractions or inappropriate content. The seventh one is again from USA. On “GENOME ISLAND: A Virtual Science Environment in Second Life”, written by Mary ANNE CLARK, from Texas Wesleyan University, USA”. This article describes the organization and uses of Genome Island, a virtual laboratory complex constructed in Second Life. Genome Island was created for teaching genetics to university undergraduates but also provides a public space where

  14. Editorial: Letter from the Editors

    Directory of Open Access Journals (Sweden)

    Wilhelm Heitmeyer

    2011-12-01

    Full Text Available This issue our guest editors are close to home. Wilhelm Heitmeyer and Steven F. Messner, both members of our own Board of Editors, have assembled a focus section examining the question of “Youth at Risk.” Their collection certainly lives up to our aspiration to be truly interdisciplinary and international. The methods applied in the reported research range from interview-based studies through empirical number-crunching to laboratory experiments (the latter a first for this journal; the geographical scope spans from Argentina through Central America and Europe to Africa. The youth at risk here are in conflict with the police, with each other, with societies that fear them, with societies that ignore their needs. Our systematically eclectic approach continues outside the focus section too, with contributions on the theory of violence, female fighters in Africa, and spousal violence in Pakistan.

  15. The graphics editor in ROOT

    International Nuclear Information System (INIS)

    Antcheva, Ilka; Brun, Rene; Hof, Carsten; Rademakers, Fons

    2006-01-01

    A well-designed Graphical User Interface (GUI) has critical importance in any computer application. The user interface is where the end users and the complex system intersect. An effective interface design can make a powerful and complex system, such as ROOT, easy and intuitive to learn and operate. This paper describes the main goals we defined and the design solution we found developing the graphics editor in ROOT

  16. Femoral Condyle Fracture during Anterior Cruciate Ligament Reconstruction

    Directory of Open Access Journals (Sweden)

    Selahattin Ozyurek

    2015-07-01

    Full Text Available Dear Editor,We have greatly enjoyed reading the case report entitled “‘Femoral Condyle Fracture during Revision of Anterior Cruciate Ligament Reconstruction: Case Report and a Review of Literature in the issue of Arch Bone Jt Surg. 2015;3(2 with great interest. We would like to commend the authors for their detailed and valuable work. Although various case reports have described postoperative distal femur fracture at a range of time intervals (1,2 intraoperative intra-articular distal femur fracture is a unique entity.However, we believe that some important additional observations seem necessary to be contributed through this study. In this article, the authors stated that, to the best of their knowledge, there is no other case report in the literature introducing a femoral condyle fracture during arthroscopic ACL reconstruction or revision reconstruction. Nevertheless, we would like to call the attention of the readers to the fact that that the literature contains one additional case report re‌porting on intraoperative distal femoral coronal plane (Hoffa fracture during primary ACL reconstruction (2. Werner BC and Miller MD presented of case report of an intraoperative distal femoral coronal plane (Hoffa fracture that occurred during independent femoral tunnel drilling and dilation in a primary ACL reconstruction. As in the their case, this type of fracture can occur with appropriately placed femoral tunnels, but the risk can increase with larger graft diameters in patients with smaller lateral femoral condyles The patient was treated with open reduction and internal fixation, without compromise of graft stability and with good recovery of function. We believe that tailoring graft size to the size of the patient is important to prevent similar adverse events.

  17. New Editors Appointed for Water Resources Research

    Science.gov (United States)

    2009-03-01

    Praveen Kumar (University of Illinois at Urbana-Champaign), the newly appointed editor in chief of Water Resources Research (WRR), heads the new team of editors for the journal. The other editors are Tom Torgersen (University of Connecticut, Groton), who continues his editorship; Tissa Illangasekare (Colorado School of Mines, Golden); Graham Sander (Loughborough University, Loughborough, UK); and John Selker (Oregon State University, Corvallis). Hoshin Gupta (University of Arizona, Tucson) will join WRR at the end of 2009. The new editors will begin receiving submissions immediately. The incoming editorial board thanks outgoing editors Marc Parlange, Brian Berkowitz, Amilcare Porporato, and Scott Tyler, all of whom will assist during the transition.

  18. EDITORIAL: Message from the Editor Message from the Editor

    Science.gov (United States)

    Thomas, Paul

    2010-02-01

    November 2009 and provided particularly detailed advice to the authors. The other three have been very helpful in 'minority fields'. We have excluded our Board members, Guest Editors of special editions and those referees who were already listed in the last four years. Guest Editors' work on papers submitted to their Special Issues is also excluded from consideration. The following people have been selected: Tomonori Takizuka, JAEA-Naka Fusion Institute, Japan Rudolf Neu, Max-Planck-Institut für Plasmaphysik, Germany Sibylle Guenter, Max-Planck-Institut für Plasmaphysik, Germany Taik-Soo Hahm, Princeton Plasma Physics Laboratory, United States David R. Mikkelsen, Princeton Plasma Physics Laboratory, United States Peter C. de Vries, EURATOM/UKAEA Fusion Association, United Kingdom Yasuhiro Suzuki, National Institute for Fusion Science, Japan Jerzy Wolowski, Institute of Plasma Physics and Laser Microfusion, Poland Tetsuo Tanabe, Kyushu University, Japan Yasuyuki Yagi, National Institute of Advanced Industrial Science and Technology, Japan Congratulations and many, many thanks! The Guest Editors of special editions deserve a special mention for the excellent help that they have given us. They are: Taik-Soo Hahm, Princeton Plasma Physics Laboratory, United States, Special Issue on H-Mode Physics and Transport Barriers Yaroslav Kolesnichenko, Institute for Nuclear Research, Ukraine, Special Issue on Energetic Particles in Magnetic Confinement Systems Kimitaka Itoh, National Institute for Fusion Science, Japan and Howard R. Wilson, University of York, UK, Special Issue on Plasma Instabilities Bernhard Unterberg, Forschungszentrum Juelich, Germany, Special Issue on Stochastic Fusion Plasma In addition, there is a group of several hundred referees who have helped us in the past year to maintain the high scientific standard of Nuclear Fusion. At the end of this issue we give the full list of all referees for 2009. Our thanks to them! Authors The winner of the 2009 Nuclear Fusion

  19. Femoral shaft fractures

    International Nuclear Information System (INIS)

    Bender, C.E.; Campbell, D.C. II

    1985-01-01

    The femur is the longest, largest, and strongest bone in the body. Because of its length, width, and role as primary weight-bearing bone, it must tolerate the extremes of axial loading and angulatory stresses. Massive musculature envelopes the femur. This masculature provides abundant blood supply to the bone, which also allows great potential for healing. Thus, the most significant problem relating to femoral shaft fractures is not healing, but restoration of bone length and alignment so that the femoral shaft will tolerate the functional stresses demanded of it

  20. Proximal femoral fractures

    DEFF Research Database (Denmark)

    Palm, Henrik; Teixidor, Jordi

    2015-01-01

    searched the homepages of the national heath authorities and national orthopedic societies in West Europe and found 11 national or regional (in case of no national) guidelines including any type of proximal femoral fracture surgery. RESULTS: Pathway consensus is outspread (internal fixation for un...

  1. Editorial: Letter from the Editors

    Directory of Open Access Journals (Sweden)

    James Sidanius

    2012-12-01

    Full Text Available This issue of the journal focuses on the question of bullying prevention, with a collection of articles put together by Manuel Eisner and Tina Malti. We are very grateful to them for the hard work they put in as focus section editors – and in their contributions to the section. The open section this time takes us to North America for a study of identity and in-group superiority and Africa for a review of the question of youth and violence.

  2. [Trochanteric femoral fractures].

    Science.gov (United States)

    Douša, P; Čech, O; Weissinger, M; Džupa, V

    2013-01-01

    At the present time proximal femoral fractures account for 30% of all fractures referred to hospitals for treatment. Our population is ageing, the proportion of patients with post-menopausal or senile osteoporosis is increasing and therefore the number of proximal femoral fractures requiring urgent treatment is growing too. In the age category of 50 years and older, the incidence of these fractures has increased exponentially. Our department serves as a trauma centre for half of Prague and part of the Central Bohemia Region with a population of 1 150 000. Prague in particular has a high number of elderly citizens. Our experience is based on extensive clinical data obtained from the Register of Proximal Femoral Fractures established in 1997. During 14 years, 4280 patients, 3112 women and 1168 men, were admitted to our department for treatment of proximal femoral fractures. All patients were followed up until healing or development of complications. In the group under study, 82% were patients older than 70 years; 72% of those requiring surgery were in their seventies and eighties. Men were significantly younger than women (pfractures were 2.3-times more frequent in women than in men. In the category under 60 years, men significantly outnumbered women (pfractures were, on the average, eight years older than the patients with intertrochanteric fractures, which is a significant difference (pTrochanteric fractures accounted for 54.7% and femoral neck fractures for 45.3% of all fractures. The inter-annual increase was 5.9%, with more trochanteric than femoral neck fractures. There was a non-significant decrease in intertrochanteric (AO 31-A3) fractures. On the other hand, the number of pertrochanteric (AO 31-A1+2) fractures increased significantly (pfractures were treated with a proximal femoral nail; a short nail was used in 1260 and a long nail in 134 of them. A dynamic hip screw (DHS) was employed to treat 947 fractures. Distinguishing between pertrochanteric (21-A1

  3. Thanks to outgoing Associate Editors

    Science.gov (United States)

    Lichti, Derek D.; Weng, Qihao

    2018-04-01

    As of the end of December 2017, Professors Eberhard Gülch, Olaf Hellwich, Minho Kim, and Lalit Kumar have retired as Associate Editors of the ISPRS Journal of Photogrammetry and Remote Sensing. Our Journal's readership has benefited greatly from their longstanding commitment to their editorial duties. Both Profs. Gülch and Hellwich began their service to the Journal in 2007, while Profs. Kumar and Kim began in 2012 and 2014, respectively. In their many years as editors, they have witnessed the incredible growth of the Journal in terms of the number of papers submitted and published as well as the impact factor. Thanks to their high standards for paper quality and rigorous peer review, these professors have been important contributors to the Journal's current high standing. They were very versatile in terms of the scope of papers they could handle. Eberhard handled papers in photogrammetry, terrain modelling and geographic information systems (GIS) while Olaf handled papers in radar, computer vision and GIS. Both Lalit and Minho handled papers in optical remote sensing. On behalf of the Journal and the International Society for Photogrammetry and Remote Sensing, we thank them for many years of dedicated service to the Journal.

  4. A new record editor for Invenio 3

    CERN Multimedia

    CERN. Geneva

    2017-01-01

    On this presentation, a new record editor will be presented. Current version under development can be found in https://github.com/inveniosoftware-contrib/ng2-json-editor. This editor uses JSON as its native data format, provides many configuration options and can handle very large JSON documents. An update on the development status and pointers to how to use it in your own installation will be provided.

  5. Learning the vi and Vim Editor

    CERN Document Server

    Robbins, Arnold; Hannah, Elbert

    2008-01-01

    There's nothing that hard-core Unix and Linux users are more fanatical about than their text editor. Editors are the subject of adoration and worship, or of scorn and ridicule, depending upon whether the topic of discussion is your editor or someone else's. vi has been the standard editor for close to 30 years. Popular on Unix and Linux, it has a growing following on Windows systems, too. Most experienced system administrators cite vi as their tool of choice. And since 1986, this book has been the guide for vi. However, Unix systems are not what they were 30 years ago, and neither is this

  6. EDITORIAL: Message from the Editor Message from the Editor

    Science.gov (United States)

    Thomas, Paul

    2011-01-01

    As usual, being an even year, the 23rd IAEA Fusion Energy Conference took place at Daejeon, Korea. The event was notable not just for the quality of the presentations but also for the spectacular opening ceremony, in the presence of the Prime Minister, Kim Hwang-sik. The Prime Minister affirmed the importance of research into fusion energy research and pledged support for ITER. Such political visibility is good news, of course, but it brings with it the obligation to perform. Fortunately, good performance was much in evidence in the papers presented at the conference, of which a significant proportion contain 'ITER' in the title. Given this importance of ITER and the undertaking by the Nuclear Fusion journal to publish papers associated with Fusion Energy Conference presentations, the Nuclear Fusion Editorial Board has decided to adopt a simplified journal scope that encompasses technology papers more naturally. The scope is available from http://iopscience.iop.org/0029-5515/page/Journal%20information but is reproduced here for clarity: Nuclear Fusion publishes articles making significant advances to the field of controlled thermonuclear fusion. The journal scope includes: the production, heating and confinement of high temperature plasmas; the physical properties of such plasmas; the experimental or theoretical methods of exploring or explaining them; fusion reactor physics; reactor concepts; fusion technologies. The key to scope acceptability is now '....significant advances....' rather than any particular area of controlled thermonuclear fusion research. It is hoped that this will make scope decisions easier for the Nuclear Fusion office, the referees and the Editor.The Nuclear Fusion journal has continued to make an important contribution to the research programme and has maintained its position as the leading journal in the field. This is underlined by the fact that Nuclear Fusion has received an impact factor of 4.270, as listed in ISI's 2009 Science Citation

  7. Iodixanol in femoral arteriography

    International Nuclear Information System (INIS)

    Thorstensen, Oe.; Albrechtsson, U.; Calissendorff, B.; Larusdottir, H.; Norgren, L.; Tengvar, M.; Bolstad, B.; Aspelin, P.

    1994-01-01

    Two contrast media, iodixanol (Visipaque, Nycomed) 270 mg I/ml and iohexol (Omnipaque, Nycomed) 300 mg I/ml, were compared in femoral arteriography, in 147 patients. Both contrast media were diagnostically effective for use in femoral arteriography, without any significant difference. Pain was reported in connection with injection of iohexol by 36% of the patients, after injection of iodixanol none reported pain. Seventy-two percent of the patients in the iodixanol group reported a sensation of warmth in connection with contrast injection versus 90% in the iohexol group. The average intensity of the warmth was greater with iohexol than with iodixanol. Fourteen percent of patients in the iodixanol group and 1% in the iohexol group reported one or more subjective adverse events. (orig.)

  8. Radiographic femoral varus measurement is affected unpredictably by femoral rotation

    DEFF Research Database (Denmark)

    Miles, James Edward

    Radiographic measurements of femoral varus are used to determine if intervention to correct femoral deformity is required, and to calculate the required correction. The varus angle is defined as the angle between the proximal femoral long axis (PFLA) and an axis tangential to the distal femoral...... and externally by 5° and 10° using plastic wedges. Accuracy of rotation was within +1°. Digital radiographs were obtained at each position. Varus angles were measured using ImageJ, employing two definitions of PFLA. Mean varus angles increased with 10° of either internal or external rotation with both PFLA...... rotation angles. The effect of rotation on varus angle measurements in these femoral specimens contradicts a previous report using CT. The most probable explanation is the difference in femoral positioning: the CT study used a slightly elevated position compared to that in this study, resulting in better...

  9. Examining Editor-Author Ethics: Real-World Scenarios from Interviews with Three Journal Editors

    Science.gov (United States)

    Amare, Nicole; Manning, Alan

    2009-01-01

    Those who submit manuscripts to academic journals may benefit from a better understanding of how editors weigh ethics in their interactions with authors. In an attempt to ascertain and to understand editors' ethics, we interviewed 3 current academic journal editors of technical and/or business communication journals. We asked them about the…

  10. Editorial - Letter from the Editors

    Directory of Open Access Journals (Sweden)

    James Sidanius

    2009-12-01

    Full Text Available This time our focus section deals with the topic of ethnic and racial violence and conflict. We are grateful to our guest editors Robert D. Crutchfield (Universityof Washington, United States and Werner Bergmann (TU Berlin, Germany for putting together an appealing collection of contributions addressing this important field. As usual, our Open Section reflects the enormous breadth of our field, with articles on the theories of Clausewitz and the media’s treatment of rape incidents in kibbutzim.Aside from regular activities, the IJCV is in the process of migrating to a new content management system. From next year the journal will appear in a new online design and be easier to browse. The address will not change, though. If you have signed up for our news alerts you will receive further information in good time.

  11. EDITORIAL: Message from the Editor

    Science.gov (United States)

    Thomas, Paul

    2009-01-01

    Plasmaphysik, Germany) V. Philipps (Forschungszentrum Juelich, Germany) S. Zweben (Princeton Plasma Physics Laboratory, USA) Y. Hirano (National Institute of Advanced Industrial Science and Technology, Japan) Y. Takase (Tokyo University, Japan) In addition there is a group of several hundred referees who have helped us in the past year to maintain the high scientific standard of Nuclear Fusion. At the end of this issue we give the full list of all referees for 2008. Our thanks to them! Authors The winner of the 2007 award was Clemente Angioni for the paper entitled `Density response to central electron heating: theoretical investigations and experimental observations in ASDEX Upgrade' (Nucl. Fusion 44 8277-845). The winner of the 2008 Nuclear Fusion award is Todd Evans et al for the paper `Suppression of large edge localized modes with edge resonant magnetic fields in high confinement DIII-D plasmas' (Nucl. Fusion 45 595-607). The awards were presented by the IAEA Deputy Director General, Werner Burkart, and the Chairman of the Board of Editors, Mitsuru Kikuchi, on 16 October 2008 at the 22nd IAEA Fusion Energy Conference in Geneva, Switzerland. Given the topicality of these papers for the ITER design, it is a matter of pride to the journal that the work should be published in Nuclear Fusion. Reviews Like many who have worked for a long time in the field, I still make use of Nuclear Fusion Reviews that go back 20 or 30 years. It is particularly useful, therefore, that the Board of Editors has been working to re-activate the review programme. The first fruits will appear in this issue, in the form of `A review of zonal flow experiments', by Akihide Fujisawa. The special procedures for Reviews should be noted: most specifically that they should normally be commissioned by the Board of Editors. However, not only is the Board of Editors working on a programme but I am sure that they would be pleased to consider suggestions for review subjects. Letters The reputation of Nuclear

  12. Good editorial practice: editors as educators.

    Science.gov (United States)

    Marusić, M; Marusić, A

    2001-04-01

    There may be valuable research going on in the developing and financially less-privileged countries, but it usually does not reach international visibility, in spite of a large number of scientific journals in these countries. Such journals are not only invisible but, by perpetuating a vicious circle of inadequacy, may be directly damaging to the local science and research culture. We call for an international action to help journal editors in less privileged countries. International associations of editors may be leaders of these activities by defining, promoting, and perhaps controlling good editorial practice, as a main criterion for international recognition of a journal. However, the editors of small journals have the power and moral obligation to become a stronghold of quality and advancement in their scientific community. Their educational "tools" are editorial integrity and author-friendly policy. Editors can teach the authors study design, statistical analysis, precision, punctuality, research integrity, style and format of writing, and other aspects of scientific communication. The editors of "big", mainstream scientific journals can act as global educators, teaching and providing guidance to editors of small journals. The editors from developed countries as leaders, and editors from less advantageous environments as teachers are the key figures in shaping research communication in less privileged scientific communities.

  13. Editorial: Letter from the Editors

    Directory of Open Access Journals (Sweden)

    Andreas Zick

    2015-07-01

    Full Text Available Editorial 8(2 We are pleased to present issue 8 (2. The focus section is edited by Helmut Thome (University of Halle-Wittenberg, Germany and Steven F. Messner (University at Albany, United States, and focuses on methodological constraints, options, and solutions in longitudinal research on criminal violence. We are honored that Helmut Thome, Steven Messner, and the contributors offer their scientific knowledge and evidence in the interests of gaining a deeper understanding of one of the most promising methodological approaches in conflict and violence research, i.e. longitudinal data analyses. Sincere thanks to the editors and authors for opening up the potential of this specific kind of research for advances to better assess and understand criminal violence in a long term perspective. We hope this issue will be discussed and quoted in the interdisciplinary community of researchers. The open section again fulfills its aim to foster contributions on diverse topics in the field of conflict and violence, starting with an analysis of Southeast Asian media reception of the Israeli/Palestine conflict. The second paper shows how social cohesion activities have the potential to change disparaging attitudes in Cyprus. The third and final contribution examines teen dating violence in Switzerland from various angles.

  14. EDITORIAL: Letter from the Editor Letter from the Editor

    Science.gov (United States)

    Pashinin, Pavel P.

    2013-01-01

    Dear readers, contributors, and members of the world laser physics community. It is a great honour for us to introduce to you our new publishing partner, IOP Publishing, a subsidiary of the Institute of Physics, United Kingdom. IOP Publishing is a world renowned authority in producing journals, magazines, websites and services that enable researchers and research organizations to present their work to a world-wide audience. Laser Physics, the first English-language scientific journal in Russia, was founded in 1990 on the initiative of Alexander M Prokhorov, a pioneer and leader in laser physics research. Professor Prokhorov served as the first Editor-in-Chief of the journal until 2002. We are proud that it is our 23rd year of publishing Laser Physics and our 10th year of publishing Laser Physics Letters. We would like to honour the memory of our friend, late Professor Igor Yevseyev, whose enthusiasm and unwavering dedication to our journals contributed most significantly to their success. It was initially his idea in 2011 to approach IOP with a partnership proposal. We deeply regret that he is no longer with us as we enter this productive alliance. Now, in partnership with IOP, we are turning a new page in providing world-wide access to the cutting-edge research results in our journals, serving our well established global audience. We see new horizons opening for our journals for years to come and hope that our readers share our enthusiasm and aspirations. Please accept our best wishes for all your new scientific endeavors in the exciting field of laser physics.

  15. Analysis of the results of the first implementation of the Korea Manuscript Editors Certification

    Directory of Open Access Journals (Sweden)

    Hyun Jung Yi

    2017-02-01

    Full Text Available In the field of international scholarly journal publishing, manuscript editing has been established as an essential component of the publication process. As the necessity of this process has increased, the Korean Council of Science Editors has consistently provided education for training professional manuscript editors, and has worked to implement a manuscript editor certification system. Starting in 2014, the Korean Council of Science Editors thoroughly conducted background research and advanced analysis in preparation for such a system. Subsequently, a committee of experts was formed to develop and simulate an examination for this certification. This process culminated in the first manuscript editor certification examination, which was held in November 2016 and resulted in 40 initial Korea Manuscript Editors Certification holders. Examinations for the Korea Manuscript Editors Certification are scheduled to be held annually. The establishment of this certification system will contribute to strengthening individual capacities and further developing science journal publication in Korea by expanding the field of manuscript editing. Ultimately, this system will contribute to the promotion of Korean scientific journals to the level of prominent international journals.

  16. U.S. EPA Metadata Editor (EME)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The EPA Metadata Editor (EME) allows users to create geospatial metadata that meets EPA's requirements. The tool has been developed as a desktop application that...

  17. Focal femoral condyle resurfacing.

    LENUS (Irish Health Repository)

    Brennan, S A

    2013-03-01

    Focal femoral inlay resurfacing has been developed for the treatment of full-thickness chondral defects of the knee. This technique involves implanting a defect-sized metallic or ceramic cap that is anchored to the subchondral bone through a screw or pin. The use of these experimental caps has been advocated in middle-aged patients who have failed non-operative methods or biological repair techniques and are deemed unsuitable for conventional arthroplasty because of their age. This paper outlines the implant design, surgical technique and biomechanical principles underlying their use. Outcomes following implantation in both animal and human studies are also reviewed. Cite this article: Bone Joint J 2013;95-B:301-4.

  18. EDITORIAL: Message from the Editor Message from the Editor

    Science.gov (United States)

    Thomas, Paul

    2012-01-01

    Board Members, Guest Editors of special editions and those referees who were already listed in the last years. The following people have been selected: Marina Becoulet, CEA Cadarache, France Russell Doerner, University of California - San Diego, USA Emiliano Fable, Max-Planck-Institut fuer Plasmaphysik, Germany Akihide Fujisawa, Kyushi University, Japan Gerardo Giruzzi, CEA Cadarache, France Grigory Kagan, LANL, USA Morten Lennholm, CCFE, UK Akinobu Matsuyama, NIFS, Japan Peter Stangeby, University of Toronto, Canada Leonid Zakharov, PPPL, USA In addition, there is a group of several hundred referees who have helped us in the past year to maintain the high scientific standard of Nuclear Fusion. At the end of this issue we give the full list of all referees for 2011. Our thanks to them! Authors The winner of the 2011 Nuclear Fusion Award is H. Urano, for the paper 'Dimensionless parameter dependence of H-mode pedestal width using hydrogen and deuterium plasmas in JT-60U' (Nucl. Fusion 48 045008). The award was presented at the Plasma Conference 2011 (Joint meeting of 28th JSPF Annual Meeting, The 29th Symposium on Plasma Processing, and Division of Plasma Physics, 2011 Autumn Meeting of The Physical Society of Japan). This is the sixth year that the International Atomic Energy Agency (IAEA) has awarded an annual prize to honour exceptional work published in Nuclear Fusion. IOP Publishing has generously made a contribution of $2500 to the award. The Nuclear Fusion Electronic Archive The journal's electronic archive has been online since the beginning of the year. The archive has been a roaring success and has contributed to the nearly 300 000 downloads of journal papers in 2011. The archive can be accessed via http://iopscience.iop.org/0029-5515/page/Archive. It has direct links to 16 landmark papers, from authors such as Artsimovich and Mercier. The Nuclear Fusion office and IOP Publishing Just as the journal depends on the authors and referees, so its success is also

  19. A model-driven development approach for learning design using the LPCEL Editor

    Directory of Open Access Journals (Sweden)

    Jorge Torres

    2014-01-01

    Full Text Available Complex learning scenarios are represented using Educational Modeling Languages (EMLs. Different people with specific skills usually design these scenarios. The IMS LD is a commonly used EML for which some visual editors are being created in order to assist the authoring process. However, these editors have a limited level of expressiveness and do not provide the facilities for designers to collaborate in the design process. The LPCEL Editor provides a broad level of expressiveness and facilitates the authoring process with an editor that includes: (1 Visual Elements, (2 Intermediate Representation, (3 Learning Patterns, (4 Collaboration tools and (5 Web Services. In order to verify that the components are sufficient, we conducted a user evaluation to analyze their perspective regarding the level of functionality of the tools.

  20. [Report of the editors, 2013].

    Science.gov (United States)

    García Puig, J; Gaspar Alonso-Vega, G; Ríos Blanco, J J

    2014-01-01

    The editors of Revista Clínica Española(Rev Clin Esp) inform on their editorial activity during the last 12 months: (a) objectives and attainments, (b) editorial activity, and (c) objectives for 2014. In 2013 the most relevant modification concerning the editorial activity has been the translation into English of the 5 manuscripts with abstract contained in each issue (http://www.revclinesp.es/). From the first January to the 30th September 2013 we received 458 manuscripts (50.9 manuscripts per month), a similar figure to that obtained in 2012 (51.1 manuscripts per month). The acceptance rate of the 443 manuscripts whose editorial process has been concluded was 23.7% (originals, 11.8%). We asked for 253 revisions to 186 reviewers and we received 74.4% revisions in less than 2 weeks (10.9 days). The mean time to adopt an editorial decision for all manuscripts («accepted»/«rejected») has been 20,3 (half than in 2009). For «originals» this figure has dropped from 56.6 days in 2009 to 22.5 days in 2013. The mean time elapsed from manuscript reception to its on-line publication was 94.8 days in 2013 (110.5 in 2012 and 155.8 in 2011). In 2013 the collaboration with the working groups from the Internal Medicine Spanish Foundation has reported 17 published manuscripts. In 2013 we were informed that the Journal Citation Reports excluded Rev Clin Esp from its impact factor journal list due to its elevated self-citations. We have taken a number of actions to reduce self-citations and we expect to be a minority in 2014. Some other data concerning the editorial policy are encouraging. In this sense, manuscript citation to Rev Clin Esp published articles has seen a substantial increase from 19% in 2008 to 29% in 2012. We work to achieve the digitalization of Rev Clin Esp from 1940 to 1999 (the journal is already digitalized since 2000). The continuous renewal of the journal sections and the working groups collaboration are necessary elements to make our journal, each day

  1. Becoming an Online Editor: Perceived Roles and Responsibilities of Wikipedia Editors

    Science.gov (United States)

    Littlejohn, Allison; Hood, Nina

    2018-01-01

    Introduction: We report on the experiences of a group of people as they become Wikipedia editors. We test Benkler's (2002) theory that commons-based production processes accelerate the creation of capital, questioning what knowledge production processes do people engage in as they become editors? The analysis positions the development of editing…

  2. Femoral head necrosis; Hueftkopfnekrose

    Energy Technology Data Exchange (ETDEWEB)

    Kramer, J.; Scheurecker, G.; Scheurecker, A.; Stoeger, A.; Huber, A. [Roentgeninstitut am Schillerpark, Linz (Austria); Hofmann, S. [Orthopaedisches Landeskrankenhaus Stolzalpe (Austria)

    2009-05-15

    The epidemiology and pathohistogenesis of avascular femoral head necrosis has still not been clarified in detail. Because the course of the disease runs in stages and over a long time period nearly always culminates in the necessity for a total hip prosthesis, an exact radiological evaluation is of paramount importance for the treatment. There is a need for a common staging system to enable comparison of different therapy concepts and especially their long-term results. In this article the ARCO staging system is described in full detail, which includes all radiological modalities as well as histopathological alterations. (orig.) [German] Bei der avaskulaeren Femurkopfnekrose handelt es sich um ein Krankheitsbild, dessen Ursachen noch immer nicht vollstaendig geklaert sind. Da die Erkrankung stadienhaft verlaeuft und ueber einen laengeren Zeitraum betrachtet nahezu immer in einem prothetischen Hueftersatz muendet, ist eine genaue radiologische Abklaerung fuer die Behandlung von enormer Bedeutung. Um Langzeiterfolge verschiedener Therapiekonzepte vergleichen zu koennen, sind eine exakte Beschreibung und darauf basierend die Verwendung einer einheitlichen Stadieneinteilung wuenschenswert. In der vorliegenden Arbeit wird die ARCO-Stadieneinteilung im Detail beschrieben, die alle bildgebenden Methoden beruecksichtigt und histopathologische Veraenderungen mit einbezieht. (orig.)

  3. Evaluation of a patient specific femoral alignment guide for hip resurfacing.

    Science.gov (United States)

    Olsen, Michael; Naudie, Douglas D; Edwards, Max R; Sellan, Michael E; McCalden, Richard W; Schemitsch, Emil H

    2014-03-01

    A novel alternative to conventional instrumentation for femoral component insertion in hip resurfacing is a patient specific, computed tomography based femoral alignment guide. A benchside study using cadaveric femora was performed comparing a custom alignment guide to conventional instrumentation and computer navigation. A clinical series of twenty-five hip resurfacings utilizing a custom alignment guide was conducted by three surgeons experienced in hip resurfacing. Using cadaveric femora, the custom guide was comparable to conventional instrumentation with computer navigation proving superior to both. Clinical femoral component alignment accuracy was 3.7° and measured within ± 5° of plan in 20 of 24 cases. Patient specific femoral alignment guides provide a satisfactory level of accuracy and may be a better alternative to conventional instrumentation for initial femoral guidewire placement in hip resurfacing. Crown Copyright © 2014. All rights reserved.

  4. EDITORIAL: Letter from the Editor

    Science.gov (United States)

    Hauptmann, Peter

    2006-12-01

    Dear authors and reviewers of articles for Measurement Science and Technology, I would like to thank all those who have published papers with us in 2006, and special thanks go to those of you who have kindly reviewed articles for the journal this year. I would also like to take this opportunity to update you on some of the developments on the journal this year. As many of you are no doubt aware our impact factor (a measure of the average number of times recent papers are referred to by others) has remained above 1 for the second year in a row. This is often taken as an indication of the quality and relevance of recently published research, and although as readers we develop our own instinct for journals of high quality, it is gratifying as an Editor to see the data from an independent organization agreeing with my own assessment. This year we have welcomed several new faces to our Editorial Board and International Advisory Board. We are delighted to welcome Professor Hirofumi Yamada of the University of Kyoto as a representative from Japan. From China we have been joined by Professor Xuzong Chen of Peking University and Professor Zhiyi Wei of Chinese Academy of Sciences, Beijing. Professor Ivan Marusic from University of Minnesota and Dr Paul Williams of the National Institute of Standards and Technology in Boulder have joined as North American representatives. As usual you will be able to submit your articles through them or direct to the Editorial Office in Bristol, UK. As part of our ongoing initiative to give our authors' work the highest visibility, all articles are freely available online for 30 days from the date of publication, allowing all researchers to read and view the latest research as soon as it is published, and this year there have been many interesting articles to read! As regular readers are aware, Measurement Science and Technology publishes special issues and features, which highlight an area of current interest. This year's topics included

  5. From Editor vol 11, No.4

    OpenAIRE

    Ugur Demiray

    2010-01-01

    Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 11, Number: 4. In this issue it is published 4 notes for Editor, 12 articles, 2 book and one conference reviews. And this time, 27 authors from 10 different countries are placed. These published articles are from Bangldesh, Greece, India, Israel, Malaysia, Nigeria, Portugal, Singapore, Turkey and USA.The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on PREZI: A Differen...

  6. CERN Courier editors through 50 years

    CERN Multimedia

    2009-01-01

    The 50th anniversary of the first publication of the CERN Courier provided the opportunity for a modest celebration on 2 September 2009. All six of the principal editors that the magazine has had over its 50 years met together for the first time. After getting acquainted and re-acquainted over lunch, they gathered in the library at CERN to answer questions about producing the magazine over the years. From right to left, from the first editor to the present incumbent: Roger Anthoine, Alec Hester, Brian Southworth, Gordon Fraser, James Gillies and Christine Sutton.

  7. A Microsoft Windows version of the MCNP visual editor

    International Nuclear Information System (INIS)

    Schwarz, R.A.; Carter, L.L.; Pfohl, J.

    1999-01-01

    Work has started on a Microsoft Windows version of the MCNP visual editor. The MCNP visual editor provides a graphical user interface for displaying and creating MCNP geometries. The visual editor is currently available from the Radiation Safety Information Computational Center (RSICC) and the Nuclear Energy Agency (NEA) as software package PSR-358. It currently runs on the major UNIX platforms (IBM, SGI, HP, SUN) and Linux. Work has started on converting the visual editor to work in a Microsoft Windows environment. This initial work focuses on converting the display capabilities of the visual editor; the geometry creation capability of the visual editor may be included in future upgrades

  8. (Executive Editor). Microsoft Encarta Encyclopedia Deluxe 2000 ...

    African Journals Online (AJOL)

    In this regard it can be used to search only the articles, any of the multimedia features, or all the features. The editors have retained the pinpointer's form and have also opted for the same initial-alphabetical listing of lemmas in the main display window of the pinpointer. This maintains the continuity in this line of products and.

  9. Graphical Editor of the DDS Topology Configuration

    CERN Document Server

    Rusinov, Aleksandar

    2015-01-01

    An editor for the DDS topology configuration is created to allow the viewing of an existing topology, the editing of a topology, the creation of a new topology and the saving of a topology as a topology language XML file to be run directly on DDS or to be reloaded again for further editing. The development of the editor was started at GSI Darmstadt at the end of last year. The editor is designed as a web application that works on the client side. Recent and powerful JavaScript libraries were used – ReactJS and JointJS. It has two menus for editing – one for the declarative part and another for the executable part. A graph visualisation of the topology has also been developed and implemented fully to the editor. The output files have been tested and fully verified on the DDS. Future work will involve representation of the pipeline process and investigation on behavior when larger and more sophisticated topologies are used.

  10. A cementless, proximally fixed anatomic femoral stem induces high micromotion with nontraumatic femoral avascular necrosis: A finite element study

    Directory of Open Access Journals (Sweden)

    Wen-Chuan Chen

    2014-07-01

    Full Text Available Decrease in bone mineral density of metaphysis in patients with nontraumatic avascular necrosis of the femoral head (AVN is considered the main factor leading to aseptic loosening of the femoral component. Researchers have hypothesized that a cementless, anatomic stem fixed proximally to the metaphysis has a higher risk for aseptic loosening than a straight stem that is fixed at the diaphysis in patients with nontraumatic AVN. The purpose of the current study was to evaluate the effects of cancellous bone stiffness at the metaphysis and stem geometry on the micromotion of the femoral stem relative to the femur. The VerSys (straight and ABG (anatomic femoral stems were enrolled in this finite element study to determine the performance of prosthetic micromotion. The simulated load to the hip joint during heel strike was assigned. Results showed that the VerSys model represented better resistance in micromotion between the bone/stem interface than the ABG model in either normal or poor cancellous bone stiffness at the metaphysis. The bone quality at the metaphysis of patients with nontraumatic AVN should be considered prior to selecting a femoral stem. In consideration of initial stability, acementless, straight stem that fits the isthmus is more favourable than an anatomic stem that is fixed to the proximal area of the canal.

  11. a worldwide assessment of medical journal editors' practices and ...

    African Journals Online (AJOL)

    responding editors reported having access to the Internet, making participation in ... of improving the quality of medical science and practice.! A critical activity of ... undertook a worldwide survey of medical editors to determine their interest in a ...

  12. Publication Criteria and Recommended Areas of Improvement within School Psychology Journals as Reported by Editors, Journal Board Members, and Manuscript Authors

    Science.gov (United States)

    Albers, Craig A.; Floyd, Randy G.; Fuhrmann, Melanie J.; Martinez, Rebecca S.

    2011-01-01

    Two online surveys were completed by editors, associate editors, editorial board members, and members or fellows of the Division 16 of the American Psychological Association. These surveys targeted (a) the criteria for a manuscript to be published in school psychology journals, and (b) the components of the peer-review process that should be…

  13. Proxima: a presentation-oriented editor for structured documents

    OpenAIRE

    Schrage, M.M.

    2004-01-01

    A typical computer user deals with a large variety of documents, such as text files, spreadsheets, and web pages. The applications for constructing and modifying these documents are called editors (e.g. text editors, spreadsheet applications, and HTML editors). Despite the apparent differences between editors, the core editing behavior, whether performed in a word-processor or a spreadsheet, is largely similar: document fragments may be copied and pasted, and new parts of the document may be ...

  14. Proxima: a presentation-oriented editor for structured documents

    NARCIS (Netherlands)

    Schrage, M.M.

    2004-01-01

    A typical computer user deals with a large variety of documents, such as text files, spreadsheets, and web pages. The applications for constructing and modifying these documents are called editors (e.g. text editors, spreadsheet applications, and HTML editors). Despite the apparent differences

  15. Roles and responsibilities of the special-section editor

    KAUST Repository

    Marfurt, Kurt

    2017-10-19

    Interpretation differs from most journals in that each issue is built largely on special sections that focus on integrated multidisciplinary approaches, techniques in exploration and production, on a specific technology, on a specific basin, or on a specific type of geologic process or feature common to multiple basins. Such special sections provide the reader with the perspective and expertise of authors from different institutions and disciplines focused on the same problem. Depending on the topic, the resulting collection of papers may exhibit diversity, consensus, or both. While the editorial board of a given journal may be able to identify a subset of candidate topics for special sections, in-depth knowledge of critical problems and of the key players working on such topics is usually beyond their areas of expertise. To address this need, Interpretation draws upon such experts to construct most special sections. In addition to providing a focused collection of articles on a given topic, there are two additional advantages of the special-section format. First, the journal broadens the scope of contributors beyond those whose career advancement (typically in academia and in government laboratories) requires them to publish in peer-reviewed journals. Typically, the special-section organizers will identify oral presentations and expanded abstracts presented at meetings (such as SEG, AAPG, URTeC, OTC, and SPE) and ask the authors to expand upon their work and generate a more comprehensive document. Apart from a few technology companies, most companies do not use external publications as a component of career development. For this reason, requests by a respected special editorial team provides not only recognition to the authors, but also the justification of the authors’ management to allow them to build on their work. Nearly all companies include the act of supporting communities among their core values. Contributing to a special section is a great way for

  16. Four are named Editors of Earth Interactions

    Science.gov (United States)

    Eric J. Barron of the Earth System Science Center at The Pennsylvania State University has been named chief editor of the new electronic journal, Earth Interactions. This journal will be co-published by AGU, the American Meteorological Society, and the Association of American Geographers. The three societies jointly agreed on the appointment of Barron. Each of the societies also appointed an editor to the board. George F. Hepner for AAG is from the Department of Geography at the University of Utah, David T. Sandwell for AGU is at the Institute of Geophysics and Planetary Physics at Scripps Institution of Oceanography, and Kevin E. Trenberth for AMS is at the Climate and Global Dynamics Division at the National Center for Atmospheric Research.

  17. Conceptual design of a generic pulse schedule and event handling editor for improved fusion device operation

    International Nuclear Information System (INIS)

    Barana, Oliviero; Nouailletas, Rémy; Brémond, Sylvain; Moreau, Philippe; Allegretti, Ludovic; Balme, Stéphane; Ravenel, Nathalie; Mannori, Simone; Guillerminet, Bernard; Leroux, Fabrice; Douai, David; Nardon, Eric; Hertout, Patrick; Saint-Laurent, François

    2013-01-01

    Highlights: ► Real-time event handling requires extended functionalities of pulse schedule editors and plasma control systems ► A new pulse schedule editor, conceived for parameterization of systematic off-normal event handling, is described ► A global, generic approach on off-normal event handling is highlighted ► The functional architecture of an off-normal event handling oriented plasma control system is discussed ► The main objects of the pulse schedule editor are the segment-descriptor object and the scenario-descriptor object. -- Abstract: Coping with unexpected events is an important issue of nuclear fusion experiments. The future machines, characterized by very long plasma discharges and actively cooled metallic plasma-facing components, will require a systematic intervention in real time, in order to maximize the performance and protect the investment. The real-time management of events will require extending the functionalities of the current pulse schedule editors with the possibility of using reference waveforms provided with acceptability margins and setting up advanced mitigation strategies and event countermeasures. With this purpose, a new pulse schedule editor, based on a time-segment approach for the preparation of experimental scenarios, is being conceived on Tore Supra, together with a new plasma control system. This paper will report on their conceptual design and give account of the preliminary results of a feasibility study currently under way in order to prepare a possible implementation on Tore Supra

  18. Conceptual design of a generic pulse schedule and event handling editor for improved fusion device operation

    Energy Technology Data Exchange (ETDEWEB)

    Barana, Oliviero, E-mail: oliviero.barana@cea.fr [CEA, IRFM, F-13108 Saint-Paul-Lez Durance (France); Nouailletas, Rémy; Brémond, Sylvain; Moreau, Philippe; Allegretti, Ludovic; Balme, Stéphane; Ravenel, Nathalie [CEA, IRFM, F-13108 Saint-Paul-Lez Durance (France); Mannori, Simone [ENEA C.R. Brasimone, 40032 Camugnano (Italy); Guillerminet, Bernard; Leroux, Fabrice; Douai, David; Nardon, Eric; Hertout, Patrick; Saint-Laurent, François [CEA, IRFM, F-13108 Saint-Paul-Lez Durance (France)

    2013-10-15

    Highlights: ► Real-time event handling requires extended functionalities of pulse schedule editors and plasma control systems ► A new pulse schedule editor, conceived for parameterization of systematic off-normal event handling, is described ► A global, generic approach on off-normal event handling is highlighted ► The functional architecture of an off-normal event handling oriented plasma control system is discussed ► The main objects of the pulse schedule editor are the segment-descriptor object and the scenario-descriptor object. -- Abstract: Coping with unexpected events is an important issue of nuclear fusion experiments. The future machines, characterized by very long plasma discharges and actively cooled metallic plasma-facing components, will require a systematic intervention in real time, in order to maximize the performance and protect the investment. The real-time management of events will require extending the functionalities of the current pulse schedule editors with the possibility of using reference waveforms provided with acceptability margins and setting up advanced mitigation strategies and event countermeasures. With this purpose, a new pulse schedule editor, based on a time-segment approach for the preparation of experimental scenarios, is being conceived on Tore Supra, together with a new plasma control system. This paper will report on their conceptual design and give account of the preliminary results of a feasibility study currently under way in order to prepare a possible implementation on Tore Supra.

  19. From the Editor Vol: 6 number 2

    OpenAIRE

    Ugur Demiray

    2005-01-01

    From the Editor Dear TOJDES Readers Time flies. Another quarter has begun. It is a great pleasure to welcome you to the 18th issue, the Volume: 6, Number: 2 of The Turkish Online Journal of Distance Education (TOJDE), of looking forward. TOJDE has been driving and shaping by our editorial board, reviewers, authors and even unbelievable readers. In the April 2005 issue, TOJDE publishes peer-reviewed distance education articles under four umbrellas: applications, feature topics, researches, ...

  20. Mary Shelley as editor of Percy Shelley

    OpenAIRE

    Allen, Richard

    2001-01-01

    This chapter explores Mary Shelley's work as the founding editor of Percy Shelley's poetry. It sets out the circumstances of Mary Shelley's life after the death of Percy Shelley, her financial dependence on Percy Shelley's father, and the restrictions placed on publication by Shelley's father. It then sets out the strategies Mary Shelley used to construct a biography of Percy Shelley from the poem, thus establishing a Romantic biography of Percy Shelley which has endured into the 20th century,

  1. NEW EDITOR OF THE CMS BULLETIN

    CERN Multimedia

    Walter Van Doninck has been the Editor of the CMS Bulletin since 2000. The Bulletin not only helps disseminate information but also records the progress of CMS. Walter is handing over to Karl Gill. We would like to thank Walter for carrying out this task with enthusiasm and efficiency for so long. We should also thank Karl for accepting to take over and wish him well over the coming exciting period.

  2. Workbench surface editor of brain cortical surface

    Science.gov (United States)

    Dow, Douglas E.; Nowinski, Wieslaw L.; Serra, Luis

    1996-04-01

    We have developed a 3D reach-in tool to manually reconstruct 3D cortical surface patches from 2D brain atlas images. The first application of our cortex editor is building 3D functional maps, specifically Brodmann's areas. This tool may also be useful in clinical practice to adjust incorrectly mapped atlas regions due to the deforming effect of lesions. The cortex editor allows a domain expert to control the correlation of control points across slices. Correct correlation has been difficult for 3D reconstruction algorithms because the atlas slices are far apart and because of the complex topology of the cortex which differs so much from slice to slice. Also, higher precision of the resulting surfaces is demanded since these define 3D brain atlas features upon which future stereotactic surgery may be based. The cortex editor described in this paper provides a tool suitable for a domain expert to use in defining the 3D surface of a Brodmann's area.

  3. New Editors Appointed for Sections of Journal of Geophysical Research

    Science.gov (United States)

    2009-04-01

    New editors have been appointed for the Atmospheres, Biogeosciences, and Oceans sections of the Journal of Geophysical Research (JGR). Joost de Gouw (NOAA, Boulder, Colo.) and Renyi Zhang (Texas A&M, College Station) are filling the vacancies of retiring Atmospheres section editors John Austin and Jose Fuentes. De Gouw and Zhang join the continuing editors Steven Ghan and Yinon Rudich. Sara Pryor (Indiana University, Bloomington) is joining the Atmospheres section editorial board as an associate editor now; she will transition to editor in January 2010.

  4. Dual mobility cup reduces dislocation rate after arthroplasty for femoral neck fracture

    Directory of Open Access Journals (Sweden)

    Robertsson Otto

    2010-08-01

    Full Text Available Abstract Background Hip dislocation after arthroplasty for femoral neck fractures remains a serious complication. The aim of our study was to investigate the dislocation rate in acute femoral neck fracture patients operated with a posterior approach with cemented conventional or dual articulation acetabular components. Methods We compared the dislocation rate in 56 consecutive patients operated with conventional (single mobility cemented acetabular components to that in 42 consecutive patients operated with dual articulation acetabular components. All the patients were operated via posterior approach and were followed up to one year postoperatively. Results There were 8 dislocations in the 56 patients having conventional components as compared to no dislocations in those 42 having dual articulation components (p = 0.01. The groups were similar with respect to age and gender distribution. Conclusions We conclude that the use of a cemented dual articulation acetabular component significantly reduces the dislocation rates in femoral neck fracture patients operated via posterior approach.

  5. Advanced software development workstation project: Engineering scripting language. Graphical editor

    Science.gov (United States)

    1992-01-01

    Software development is widely considered to be a bottleneck in the development of complex systems, both in terms of development and in terms of maintenance of deployed systems. Cost of software development and maintenance can also be very high. One approach to reducing costs and relieving this bottleneck is increasing the reuse of software designs and software components. A method for achieving such reuse is a software parts composition system. Such a system consists of a language for modeling software parts and their interfaces, a catalog of existing parts, an editor for combining parts, and a code generator that takes a specification and generates code for that application in the target language. The Advanced Software Development Workstation is intended to be an expert system shell designed to provide the capabilities of a software part composition system.

  6. Mammary and femoral hydatid cysts.

    Science.gov (United States)

    Shamim, Muhammad

    2010-08-01

    Hydatid cyst disease most commonly affects liver and lungs, but it can affect all viscera and soft tissues of the body. Simultaneous mammary and femoral hydatid cysts, without any other visceral involvement, are extremely rare. This is a case report of 25-years-old female, presenting with lump in left breast mimicking fibroadenoma and lump in right thigh mimicking fibroma. Both turned out to be hydatid cysts.

  7. Quality of life in old patients with proximal femoral fractures

    Directory of Open Access Journals (Sweden)

    T A Raskina

    2012-01-01

    Full Text Available Objective: to study quality of life in Kemerovo old patients with proximal femoral fractures. Patients and methods. Quality of life in osteoporotic fractures was analyzed in 219 patients (173 women and 46 men who had sustained the injury in January 2004 to December 2008. Results. In the patients with hip fractures, the lowest (41.94+31.16 scores values were recorded by the physical functioning scale reflecting the degree to which their health limited the performance of physical exercises (self-service, walking, going upstairs, weight carriage, etc.. The role functioning and life activity scales showed the highest values (50.96+19.04 and 51.44+26.51 scores, respectively. The mean value of the physical component scale was 46.42+28.26 scores. That of the psychological component scale was 49.56+19.55 scores. Conclusion. The patients with proximal femoral fractures were found to have lower scores on all SF-36 dimensions.

  8. A Generic Metadata Editor Supporting System Using Drupal CMS

    Science.gov (United States)

    Pan, J.; Banks, N. G.; Leggott, M.

    2011-12-01

    or in a storage/archive system. We are working on adding many features to help editor users, such as auto completion, pre-populating of forms, partial saving, as well as automatic schema validation. In this presentation we will demonstrate a few sample editors, including an FGDC editor and a bare bone editor for ISO 19115/19139. We will also demonstrate the use of templates during the definition phase, with the support of export and import functions. Form pre-population and input validation will also be covered. Theses modules are available as open-source software from the Islandora software foundation, as a component of a larger Drupal-based data archive system. They can be easily installed as stand-alone system, or to be plugged into other existing metadata platforms.

  9. An editor's memoir: reflections and premonitions.

    Science.gov (United States)

    Kovacs, Arthur L

    2013-12-01

    The author served as the second Editor of this journal. In the article that follows, he reminisces about the state of the publication when he assumed responsibility for it and comments on the nature of the profession during the time of his incumbency. He reflects on the creative innovation and ferment in both the theories and tactics of psychotherapy unfolding during the 1970s and closes with statements of concern about developments within the field that are ominous and have come to the fore over the decades since he left office in 1983.

  10. A Morphological Insight of the Femoral Vein

    Directory of Open Access Journals (Sweden)

    Ferreira AH

    2015-10-01

    Full Text Available A total of 13 cadavers (12 men and 1 women of different age group were used for the study with the purpose to determine the prevalence of femoral vein duplication. Lower limb regions (26 sides were carefully dissected as per the standard dissection procedure. Femoral vein (unitruncular was found in 96.15% of specimen. Bitruncular configurations (total bifidity was found in a male cadaver of 75 years of age (3.85%. In the right lower limb, 6.5 cms below the inguinal ligament the femoral vein - lateral ramus received the lateral circumflex femoral vein, and the medial circumflex femoral vein, and the lateral and medial ramii formed a common venous trunk. Knowledge of the truncular venous variations is important to recognize and avoid potential errors in diagnosis of deep venous thrombosis of the femoral vein, in the case of an occluded duplicated trunk.

  11. Evaluation of perfusion of the femoral head after femoral neck fracture using bone scintigraphy

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, Satoshi; Ishido, Yasuhiro [Saiseikai Sendai Hospital, Kagoshima (Japan); Okano, Toshihiro [Ibusuki National Hospital, Kagoshima (Japan); Komiya, Setsuro [Kagoshima Univ. (Japan). Faculty of Medicine

    2002-09-01

    We treated 13 patients for femoral neck fracture. They consisted of 2 males and 11 females, and were classified according to Garden stage classification; Stage I, 3 cases; Stage II, 2 cases; Stage III, 2 cases; Stage IV, 4 cases. Two trochanteric fracture cases were used by control. We evaluated perfusion of the femoral head after femoral neck fracture using bone scintigraphy, which is considered useful for evaluation of perfusion of the femoral neck before operation. (author)

  12. Evaluation of perfusion of the femoral head after femoral neck fracture using bone scintigraphy

    International Nuclear Information System (INIS)

    Yamaguchi, Satoshi; Ishido, Yasuhiro; Okano, Toshihiro; Komiya, Setsuro

    2002-01-01

    We treated 13 patients for femoral neck fracture. They consisted of 2 males and 11 females, and were classified according to Garden stage classification; Stage I, 3 cases; Stage II, 2 cases; Stage III, 2 cases; Stage IV, 4 cases. Two trochanteric fracture cases were used by control. We evaluated perfusion of the femoral head after femoral neck fracture using bone scintigraphy, which is considered useful for evaluation of perfusion of the femoral neck before operation. (author)

  13. A Virtual Environments Editor for Driving Scenes

    Directory of Open Access Journals (Sweden)

    Ronald R. Mourant

    2003-12-01

    Full Text Available The goal of this project was to enable the rapid creation of three-dimensional virtual driving environments. We designed and implemented a high-level scene editor that allows a user to construct a driving environment by pasting icons that represent 1 road segments, 2 road signs, 3 trees and 4 buildings. These icons represent two- and three-dimensional objects that have been predesigned. Icons can be placed in the scene at specific locations (x, y, and z coordinates. The editor includes the capability of a user to "drive" a vehicle using a computer mouse for steering, accelerating and braking. At any time during the process of building a virtual environment, a user may switch to "Run Mode" and inspect the three-dimensional scene by "driving" through it using the mouse. Adjustments and additions can be made to the virtual environment by going back to "Build Mode". Once a user is satisfied with the threedimensional virtual environment, it can be saved in a file. The file can used with Java3D software that enables the traversing of three-dimensional environments. The process of building virtual environments from predesigned icons can be applied to many other application areas. It will enable novice computer users to rapidly construct and use three-dimensional virtual environments.

  14. Communicating specialized knowledge - negotiating knowledge communication between writer and editor

    DEFF Research Database (Denmark)

    Petersen, Margrethe

    In communicating research findings, authors of academic journal articles face the challenge of overcoming the barriers posed by the knowledge asymmetries between (a) authors and journal readership and (b) authors and editors. Considering the general taxonomy of the submission procedure and the ke...... role of academic journal editors, the issue of whether, regardless of the quality of the submissions received, editors are sometimes insurmountable barriers to knowledge communication should be debated....

  15. Femoral sizing in total knee arthroplasty is rotation dependant.

    Science.gov (United States)

    Koninckx, Angelique; Deltour, Arnaud; Thienpont, Emmanuel

    2014-12-01

    The mismatch between the medio-lateral (ML) and the antero-posterior (AP) size of femoral components in total knee arthroplasty (TKA) has been linked to gender, ethnicity, morphotype and height differences in patients. The hypothesis of this study was that the AP size measurement of a femoral component increases with more external rotation in posterior referencing TKA. During a 2-year period, 201 patients were included in this prospective study. The AP distance of the distal femur was measured with an AP sizer of the Vanguard (Biomet, Warsaw, US) knee system. This AP sizer allows to dial in external rotation by 1° increments and to determine the femoral size with an anterior boom. AP size was noted at 0°, 3° and 5° of external rotation and then compared for ML matching. Antero-posterior and corresponding ML sizes match perfectly for the Vanguard at 0° of external rotation and a central boom position on the anterior femoral surface. Then, the anterior boom was positioned on the antero-lateral cortex and the AP size increased a mean (SD) 1 (0.5) mm. With 3° of external rotation, the AP size increased a mean (SD) 2.3 (0.4) mm and for 5° a mean (SD) 3.8 (0.3) mm (P external rotation that is dialled in during surgery. Since these parameters vary case per case, the availability of narrow components offers more surgical options to the surgeon and its importance extends beyond the gender aspect allowing different amounts of external rotation to be used without ML overhang. II.

  16. Web-Based Media Contents Editor for UCC Websites

    Science.gov (United States)

    Kim, Seoksoo

    The purpose of this research is to "design web-based media contents editor for establishing UCC(User Created Contents)-based websites." The web-based editor features user-oriented interfaces and increased convenience, significantly different from previous off-line editors. It allows users to edit media contents online and can be effectively used for online promotion activities of enterprises and organizations. In addition to development of the editor, the research aims to support the entry of enterprises and public agencies to the online market by combining the technology with various UCC items.

  17. Letter from the New Editor-in-Chief

    Directory of Open Access Journals (Sweden)

    Pabulo Henrique Rampelotto

    2014-01-01

    Full Text Available It is my great pleasure to serve as the new Editor-in-Chief of Life, a journal concerned with fundamental questions on the origins and nature of life, evolution of biosystems and astrobiology. With my experience as Executive Editor, Senior Editor and Guest Editor of so many successful special issues (some of them in MDPI journals [1–6], I am committed to making the journal a success, with the launch of exciting special issues, publication of high quality papers, as well as inclusion of the journal in major indexing and abstracting services. In this editorial, I present my view and plans for the journal.

  18. EDITORIAL: Incoming Editor-in-Chief

    Science.gov (United States)

    Lidström, Suzanne

    2012-04-01

    When Professor Anders Bárány took over as the Executive Editor of Physica Scripta, in 1986, he talked of his trepidation at having to 'dress himself' in his predecessor's 'editorial coveralls'. At that time, they had been worn by Professor Nils Robert Nilsson, a major figure in the physics community, for almost 20 years. Just one year prior to this, Professor Roger Wäppling had been recruited to the position of Subeditor in conjunction with a decision to expand the number of contributions in the field of condensed matter physics, to turn it into one of the dominant subjects in the broad-based journal. Physica Scripta had already gained a reputation for being a high quality journal with wide coverage of both experimental and theoretical physics. Interestingly, in the mid 1980s, the number of papers submitted had been growing and an impressive 250 submissions per year had been attained, with all of the manuscripts being handled in-house. Not many miles away in the town of Uppsala, a group of English students was stepping off a train on a magnificent snowy day in January to embark on their final year projects. A couple of us enjoyed ourselves so much that we stayed on afterwards as PhD students, thereby encountering the mixed pleasure of studying physics in a second language for the first time. I used to copy the notes down meticulously in Swedish, then try to work backwards with a textbook to improve my language skills. One day, returning from a particularly incomprehensible lecture on solid state physics, I showed my roommates my notes and asked if they could please explain what the lecture had been about: 'I don't know', they replied, 'but this bit is about sheep!' Meanwhile, back at Physica Scripta, the journal continued to flourish: 400 submissions were received in 1996, and the march of progress was well underway. Manuscripts could now be sent in on disks and Physica Scripta was available on the World Wide Web. Roger was appointed to manage the journal and

  19. MR imaging of avascular necrosis of the femoral head

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Eun Wan; Cho, Won Soo; Hong, Hyun Sook; Lee, Hae Kyung; Choi, Deuk Lin; Kim, Ki Jung [Soonchunhyang University Hospital, Seoul (Korea, Republic of)

    1993-09-15

    We evaluated the magnetic resonance imaging (MRI) findings of femoral heads in 20 normal and 45 abnormal patients. The bone marrow in the healthy adults consisted of a combination of hematopoietic and fatty marrow, which showed age-related dirtribation, that is the component of fatty marrow was increased and the marrow vascularity was decreased with age. Avascular necrosis (AVN) showed a decreased bone marrow signal within an normal appearing femoral head on T1 and T2 -weighted images. In addition, we could see inhomogeneous low signal intensive (31 cases), a ring of low intensive with central normal signal intensity (25 cases), focal low signal intensity (12 case), or a band of low signal intensity (4 cases). MRI findings were abnormal in 10 cases with normal radiographic findings as well as in all the cases with abnormal ones. In conclusion, MRI should be the choice of the imaging modality for the evaluation of early bone marrow changes of AVN.

  20. MR imaging of avascular necrosis of the femoral head

    International Nuclear Information System (INIS)

    Choi, Eun Wan; Cho, Won Soo; Hong, Hyun Sook; Lee, Hae Kyung; Choi, Deuk Lin; Kim, Ki Jung

    1993-01-01

    We evaluated the magnetic resonance imaging (MRI) findings of femoral heads in 20 normal and 45 abnormal patients. The bone marrow in the healthy adults consisted of a combination of hematopoietic and fatty marrow, which showed age-related dirtribation, that is the component of fatty marrow was increased and the marrow vascularity was decreased with age. Avascular necrosis (AVN) showed a decreased bone marrow signal within an normal appearing femoral head on T1 and T2 -weighted images. In addition, we could see inhomogeneous low signal intensive (31 cases), a ring of low intensive with central normal signal intensity (25 cases), focal low signal intensity (12 case), or a band of low signal intensity (4 cases). MRI findings were abnormal in 10 cases with normal radiographic findings as well as in all the cases with abnormal ones. In conclusion, MRI should be the choice of the imaging modality for the evaluation of early bone marrow changes of AVN

  1. From the Editor-in-Chief

    Directory of Open Access Journals (Sweden)

    Simeon Oka

    2010-01-01

    Full Text Available The Editorial Board of the journal Thermal Science is continuing to pay great attention to the processes in internal combustion engines, both due to their environmental impact and ability to use renewable energy sources i. e. different types of biofuels. Concerning that motor vehicles contribute about 14% of the global CO2 emission, it is understandable that many research efforts are devoted to processes in internal combustion engines and use of biofuels. The number of submitted papers dealing with processes in internal combustion engines is growing from months to months, so in the journal Thermal Science also will published in 2011 one issue devoted to the same topics. Papers submitted are already in the reviewing process. Professor Dragoslava Stojiljkovi} and Professor Stojan Petrovi} as Guest editors, had again a difficult task to make appropriate choice of the papers, covering wide range of topics. I am very grateful to Guest editors for their extremely competent choice of the topics and papers. Reviewers of the papers made, also, tremendous contributions to the quality of the papers published. This time, also, as in No. 3, 2009, we asked experts in traffic engineering to give their contribution. They pointed out importance of the internal combustion engine energy efficiency, vehicle fleet operation management and logistic efficiency, and painted large scale picture of the environmental problems caused by large density traffic. We hope that this point of view will make new impulse for many new joint projects with the aim to investigate impact of the processes in internal combustion engines and logistic of motor fleet management, and organization of traffic flows, especially in large towns, on environment. Papers devoted to the thermal processes in internal combustion engines are grouped in Part one of this issue. Due to large number of papers accepted for publication, we have been forced to introduce Part two, in which are grouped selected

  2. Current status in development of new EXFOR editor

    International Nuclear Information System (INIS)

    Sarsembayeva, A.; Ebata, S.; Kato, K.; Aikawa, M.; Imai, S.; Chiba, M.; Otuka, N.

    2016-01-01

    A new stand-alone type editor for EXFOR is being developed in Hokkaido University Nuclear Reaction Data Centre (JCPRG). The new editor is designed to allow compilers to save time and to avoid mistakes by using its advanced features. The features included in the latest release are described such as filterable and dynamic suggestion fields. (author)

  3. Peer reviews and the role of a journal editor

    Science.gov (United States)

    Obtaining peer reviews for manuscripts submitted to scientific journals is becoming increasingly difficult. Changes to the system are necessary, and editors must cultivate and maintain a solid base of reviewers to help evaluate journal submissions. This article outlines some steps editors can and sh...

  4. Object class hierarchy for an incremental hypertext editor

    Directory of Open Access Journals (Sweden)

    A. Colesnicov

    1995-02-01

    Full Text Available The object class hierarchy design is considered due to a hypertext editor implementation. The following basic classes were selected: the editor's coordinate system, the memory manager, the text buffer executing basic editing operations, the inherited hypertext buffer, the edit window, the multi-window shell. Special hypertext editing features, the incremental hypertext creation support and further generalizations are discussed.

  5. How Managing Editors View and Deal with Newspaper Ethical Issues.

    Science.gov (United States)

    Anderson, Douglas

    1987-01-01

    Claims there is awareness and concern about journalism ethics among daily newspaper managing editors. Asserts that although ethical issues are being addressed to some degree, greater efforts could be made to see that reporters and editors are apprised of codes of ethics. (MM)

  6. Table of Contents | Editor | Ghana Journal of Linguistics

    African Journals Online (AJOL)

    2016. Editorial Committee: Ọbádélé Kambon (Editor-in-Chief; University of Ghana). E. Kweku Osam (Consulting Editor; University of Ghana). Gordon S. Adika (University of Ghana). Nana Aba A. Amfo (University of Ghana). Jemima A. Anderson (University of Ghana). Charles O. Marfo (Kwame Nkrumah University of Science ...

  7. The Introductory Psychology Textbook Market: Perceptions of Authors and Editors.

    Science.gov (United States)

    Griggs, Richard A.; Jackson, Sherri L.

    1989-01-01

    Surveys psychology textbook authors and editors on their perceptions of the introductory psychology textbook market. Finds that the textbook market is divided into three levels according to quality, and that authors and editors are not familiar with most textbooks. Notes that the growth of used book companies has adversely affected the market.…

  8. The RAE and Publications: A Review of Journal Editors.

    Science.gov (United States)

    Talib, Ameen Ali

    2000-01-01

    Surveyed editors of academic journals about publication issues related to Britain's Research Assessment Exercise (RAE), a process of grading and funding universities based on published research output. Editors were asked about research quality and output, publication practices, academics' willingness to referee manuscripts, and proliferation of…

  9. From Editor vol 11, No.3

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2010-07-01

    Full Text Available Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 11, Number: 3. In this issue it is published 3 notes for Editor, 12 articles, 2 book reviews. And this time, 32 authors from 10 different countries are placed. These published articles are from Barbados, Ghana, Iran, Malaysia, Pakistan, Spain, Turkey, United Kingdom, UAE and USA.“Developing and Validation A Usability Evaluation Tools For Distance Education Websites:Persian Version” has sent as Notes for editor section of TOJDE from Iran and written by Soheila HAFEZI, Ahmad FARAHI from Payame Noor University and Soheil Najafi MEHRI, Hosein MAHMOODI from Baqiyatallah Medical Sciences University, Tehran.. Their paper involves that he content validity index was measured by set of ten experts, who evaluated each item individually. According to CVI, the final version of instrument was composed of 40 questions divided into 8 domains: Navigation, Functionality, Feedback, Control, Language, Consistency, Error prevention and correction, and Visual clarity. CVI score for each phrase was more than 0.75. According to our findings, this instrument has enough validity to apply in evaluation usability of educational websites of Persian distance education websites. However, instrument reliability can be measured in further study. The second notes for editor is titled as “A Critical Analysis Of Managerial Skills Competencies Of Secondary School Heads Trained Through Distance Mode of Allama Iqbal Open University” which is written by Muhammad AKHLAQ from Preston University, Islamabad, PAKISTAN and SHAZIA MUNAWAR SULEHRI from Ministry of Education, PAKISTAN. They mentioned in their paper to analyze the managerial skills competencies of secondary schools heads trained through distance mode of education in Pakistan. For this purpose a sample 300 secondary school teachers and 100 secondary schools head-teachers trained through distance mode and working in the Federal Government

  10. JSME: a free molecule editor in JavaScript.

    Science.gov (United States)

    Bienfait, Bruno; Ertl, Peter

    2013-01-01

    A molecule editor, i.e. a program facilitating graphical input and interactive editing of molecules, is an indispensable part of every cheminformatics or molecular processing system. Today, when a web browser has become the universal scientific user interface, a tool to edit molecules directly within the web browser is essential. One of the most popular tools for molecular structure input on the web is the JME applet. Since its release nearly 15 years ago, however the web environment has changed and Java applets are facing increasing implementation hurdles due to their maintenance and support requirements, as well as security issues. This prompted us to update the JME editor and port it to a modern Internet programming language - JavaScript. The actual molecule editing Java code of the JME editor was translated into JavaScript with help of the Google Web Toolkit compiler and a custom library that emulates a subset of the GUI features of the Java runtime environment. In this process, the editor was enhanced by additional functionalities including a substituent menu, copy/paste, drag and drop and undo/redo capabilities and an integrated help. In addition to desktop computers, the editor supports molecule editing on touch devices, including iPhone, iPad and Android phones and tablets. In analogy to JME the new editor is named JSME. This new molecule editor is compact, easy to use and easy to incorporate into web pages. A free molecule editor written in JavaScript was developed and is released under the terms of permissive BSD license. The editor is compatible with JME, has practically the same user interface as well as the web application programming interface. The JSME editor is available for download from the project web page http://peter-ertl.com/jsme/

  11. Martin Stutzmann: Editor, Teacher, Scientist and Friend

    Science.gov (United States)

    Cardona, Manuel

    2005-03-01

    On 2 January 1995 Martin Stutzmann became Editor-in-Chief of physica status solidi, replacing Professor E. Gutsche, who had led the journal through the stormy period involving the fall of the Iron Curtain, the unification of Germany and the change in its Eastern part, where physica status solidi was based, from socialism as found in the real world (a German concept) to real world capitalism. In 1995 it was thought that the process had been completed (we should have known better!) and after the retirement of Prof. Gutsche the new owners of physica status solidi (Wiley-VCH) decided that a change in scientific management was desirable to adapt to the new socio-political facts and to insure the scientific continuity of the journal.Martin had moved in 1993 from my department at the Max-Planck-Institute to Munich where he soon displayed a tremendous amount of science man- agement ability during the build-up of the Walter Schottky Institute. The search for a successor as Edi- tor-in-Chief was not easy: the job was not very glamorous after the upheavals which had taken place in the editorial world following the political changes. Somebody in the Editorial Boards must have suggested Martin Stutzmann. I am sure that there was opposition: one usually looks for a well-established person ready to leave his direct involvement in science and take up a new endeavor of a more administrative nature. Nevertheless, the powers that be soon realized that Martin was an excellent, if somewhat unconventional candidate who had enough energy to remain a topnotch scientist and to lead the journal in the difficult times ahead: he was offered the job. In the negotiations that followed, he insisted in getting the administrative structures that would allow him to improve the battered quality of the journal and to continue his scientific productivity. Today we are happy to see that he succeeded in both endeavors. The journal has since grown in size and considerably improved its quality

  12. Treatment of neglected femoral neck fracture

    Directory of Open Access Journals (Sweden)

    Anil K Jain

    2015-01-01

    Full Text Available Intra-capsular femoral neck fractures are seen commonly in elderly people following a low energy trauma. Femoral neck fracture has a devastating effect on the blood supply of the femoral head, which is directly proportional to the severity of trauma and displacement of the fracture. Various authors have described a wide array of options for treatment of neglected/nonunion (NU femoral neck fracture. There is lack of consensus in general, regarding the best option. This Instructional course article is an analysis of available treatment options used for neglected femoral neck fracture in the literature and attempt to suggest treatment guides for neglected femoral neck fracture. We conducted the "Pubmed" search with the keywords "NU femoral neck fracture and/or neglected femoral neck fracture, muscle-pedicle bone graft in femoral neck fracture, fibular graft in femoral neck fracture and valgus osteotomy in femoral neck fracture." A total of 203 print articles were obtained as the search result. Thirty three articles were included in the analysis and were categorized into four subgroups based on treatment options. (a treated by muscle-pedicle bone grafting (MPBG, (b closed/open reduction internal fixation and fibular grafting (c open reduction and internal fixation with valgus osteotomy, (d miscellaneous procedures. The data was pooled from all groups for mean neglect, the type of study (prospective or retrospective, classification used, procedure performed, mean followup available, outcome, complications, and reoperation if any. The outcome of neglected femoral neck fracture depends on the duration of neglect, as the changes occurring in the fracture area and fracture fragments decides the need and type of biological stimulus required for fracture union. In stage I and stage II (Sandhu′s staging neglected femoral neck fracture osteosynthesis with open reduction and bone grafting with MPBG or Valgus Osteotomy achieves fracture union in almost 90

  13. Academic Degradation and the Retreat of the Editors: Academic Irregularities and the Spreading of Academic Corruption from an Editor's Perspective

    Science.gov (United States)

    Xun, Gong

    2007-01-01

    Against the backdrop of the grave academic crisis in China, editors have become the objects of wooing, favor-currying, connections-seeking, and collusions; they have been targeted for attacks, plots, extortions, and encroachments. Editing and publishing have become avenues for academic irregularities and academic corruption. Editors have the power…

  14. From the Editor-in-Chief

    Directory of Open Access Journals (Sweden)

    Simeon Oka

    2010-01-01

    affiliated at the Faculty of Mechanical Engineering in Kragujevac. Guest editor, Professor Dr. Milun Babić, had an extremely difficult job to make proper selection of papers, representing research results of his Department and Faculty of Mechanical Engineering, not only in fundamental and applied research, but also in practical applications. I am greatly thankful to him since he presented not only most interesting scientific results, but also cases of best practise realized on the basis of the research results. At the same time, in his introductory review paper he explain research policy in the field of thermal sciences, energy efficiency and use of renewable energy sources having the main aim to solve more important energy and environmental problems of the local community, as well as to introduce energy management, environmental management, and sustainable development. This is one of the main characteristics of the set of papers selected by Guest editor for this Supplement issue. Realization of the full chain – fundamental research, applied research development and demonstration (R&D&D is not too often, especially in developing countries. I hope, that paper selection that made for this issue by Guest editor Professor Dr. Milun Babić, in many cases evidently presents that it is possible, even with small funds available in Serbia.

  15. Ideal femoral head size in total hip arthroplasty balances stability and volumetric wear.

    Science.gov (United States)

    Cross, Michael B; Nam, Denis; Mayman, David J

    2012-10-01

    Over the last several years, a trend towards increasing femoral head size in total hip arthroplasty to improve stability and impingement free range of motion has been observed. The specific questions we sought to answer in our review were: (1) What are the potential advantages and disadvantages of metal-on-metal, ceramic-on-ceramic, and metal-on-polyethylene bearings? (2) What is effect that femoral head size has on joint kinematics? (3) What is the effect that large femoral heads have on bearing surface wear? A PubMed search and a review of 2012 Orthopaedic Research Society abstracts was performed and articles were chosen that directly answered components of the specific aims and that reported outcomes with contemporary implant designs or materials. A review of the literature suggests that increasing femoral head size decreases the risk of postoperative dislocation and improves impingement free range of motion; however, volumetric wear increases with large femoral heads on polyethylene and increases corrosion of the stem in large metal-on-metal modular total hip arthroplasty (THA); however, the risk of potentially developing osteolysis or adverse reactions to metal debris respectively is still unknown. Further, the effect of large femoral heads with ceramic-on-ceramic THA is unclear, due to limited availability and published data. Surgeons must balance the benefits of larger head size with the increased risk of volumetric wear when determining the appropriate head size for a given patient.

  16. Subchondral insufficiency fractures of the femoral head

    Energy Technology Data Exchange (ETDEWEB)

    Davies, M.; Cassar-Pullicino, V.N. [Department of Radiology, Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Oswestry, SY10 7AG, Shropshire (United Kingdom); Darby, A.J. [Department of Pathology, Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Oswestry, SY10 7AG, Shropshire (United Kingdom)

    2004-02-01

    The aim of this study was to increase awareness of, and to show the variable clinical and radiological features of, subchondral insufficiency fractures of the femoral head. The clinical and radiological findings in 7 patients with subchondral insufficiency fractures of the femoral head were reviewed retrospectively. The diagnosis was confirmed histologically in 4 patients. Radiographs were performed in all patients, MRI in 5 and scintigraphy in 4 patients. Radiographs showed varying degrees of femoral head collapse in 4 patients. In the remaining 3 patients radiographs showed a normal femoral head, regional osteoporosis and focal sclerosis, respectively. Magnetic resonance imaging showed a low-signal band on T1- and T2-weighted images in the subchondral bone adjacent or parallel to the articular surface associated with bone marrow oedema. Scintigraphy showed increased uptake in the femoral head. Insufficiency fractures of the femoral head are easily overlooked or confused with avascular necrosis and, when there is significant joint destruction, osteoarthritis. Unsuspected insufficiency fracture of the femoral head can lead to significant and rapid loss of bone stock in osteoporotic patients waiting for arthroplasty for osteoarthritis. Increased awareness of this condition will hopefully lead to earlier diagnosis and a successful outcome of conservative treatment. (orig.)

  17. Frequency of ipsilateral femoral neck fractures in patients with ...

    African Journals Online (AJOL)

    Background: Ipsilateral associated femoral neck and shaft fractures are reported to occur in 2.5-6% of all femoral shaft fractures. Objective: To establish the frequency of ipsilateral femoral neck fractures amongst all patients presenting with femoral shaft fractures in Mulago Hospital. Methodology: This was a descriptive ...

  18. Editors' message--Hydrogeology Journal in 2003

    Science.gov (United States)

    Voss, Clifford; Olcott, Perry; Schneider, Robert

    2004-01-01

    Hydrogeology Journal appeared in six issues containing a total of 710 pages and 48 major articles, including 31 Papers and 14 Reports, as well as some Technical Notes and Book Reviews. The number of submitted manuscripts continues to increase. The final issue of 2003 also contained the annual volume index. Hydrogeology Journal (HJ) is an international forum for hydrogeology and related disciplines and authors in 2003 were from about 28 countries. Articles advanced hydrogeologic science and described hydrogeologic systems in many regions worldwide. These articles focused on a variety of general topics and on studies of hydrogeology in 24 countries: Afghanistan, Algeria, Argentina, Australia, Bangladesh, Belgium, Canada, Chile, China, Denmark, France, India, Italy, Mexico, Netherlands, New Zealand, Nigeria, Norway, Portugal, Russia, South Africa, Switzerland, Turkey, and U.S.A. The Guest Editor of the 2003 HJ theme issue on “Hydromechanics in Geology and Geotechnics”, Ove Stephansson, assembled a valuable collection of technical reviews and research papers from eminent authors on important aspects of the subject area.

  19. Towards the implementation of a system for manuscript editor certification

    Directory of Open Access Journals (Sweden)

    Hyun Jung Yi

    2016-02-01

    Full Text Available Style and format are important criteria for evaluating a journal and indexing it in major databases. In Korean science, technology, and medical journals, interest in manuscript editing has increased over the past seven to eight years, and the responsibilities of manuscript editors have expanded as well. However, since no clear standards for the roles and qualifications for manuscript editors are yet available, a formal certification system is needed to establish appropriate standards and to provide professional training. To identify ways of developing a manuscript editor certification program in Korea, this study investigated similar certification programs in and outside the country and surveyed 195 Korean editors, manuscript editors, publishers, and medical librarians. The survey revealed that manuscript editors were necessary (mean score of 4.38 on a five-point Likert scale, with a score of 5 indicating strong agreement, and that their main contributions were efficiently managing the editorial board, improving the accuracy of references, and accelerating the editing process. The respondents were also positive about the possibility of implementing a manuscript editor certification; 45.1% showed interest in becoming certified, and 47.1% reported interest in hiring a certified manuscript editor. Regarding the system for issuing certification, respondents favored a professional training course (53.1%, validation of work experience (27.1%, or an examination (16.8%. This study concludes that it is essential to establish a formal certification program to train manuscript editors properly, and an examination system is the most efficient and suitable method for managing the certification process.

  20. EDITORIAL: Incoming Editor-in-Chief

    Science.gov (United States)

    Webb, Steve

    2006-01-01

    Physics in Medicine and Biology (PMB) is a journal that originated in the UK but is now rightly regarded as one of the pre-eminent international journals for the publication of material coming within its remit. It is 50 years old and its maturity is an outcome of the consistent support of high performing authors, a supportive and professional publishing house, dedicated referees, many vigorous and conscientious editorial boards and the collective input of the 10 previous Editors as listed in his incoming editorial (January 2000 issue) by the retiring Editor, Professor Alun Beddoe. The scientific climate and it associated publication modus operandi in the 1950s was very different from that at the current time and the journal has evolved to reflect this. Hence today the scope of content is somewhat broader, the size of the journal is vastly greater, the whole publication process is slicker and more efficient and a paper in PMB is highly prized by its authors and those who look to quality factors and impact. The quality of the journal still relies on the voluntary labour and expertise of its busy international referees and Board members. For many years I have tried to place my own research material in PMB and encourage my teams to do likewise, not only acknowledging the prestige of the journal but also because of the extraordinarily fast turnaround time of all the processes without any loss of quality. This serves us very well and the publishing team are to be congratulated. Some things seem to change more slowly or not at all, however. The prediction, when I started my research career, that books and journals would be dinosaurs by now has manifestly not come true and, whilst most of us are addicted (and why not?) to the electronic ways of doing things that can be done by more traditional ways, PMB and a packet of reprints from time to time arriving by post still has a reassuring feel despite the fact that the papers have been `on-line' for a while before. An incoming

  1. Subtrochanteric femoral fracture during trochanteric nailing for the treatment of femoral shaft fracture.

    Science.gov (United States)

    Yun, Ho Hyun; Oh, Chi Hun; Yi, Ju Won

    2013-09-01

    We report on three cases of subtrochanteric femoral fractures during trochanteric intramedullary nailing for the treatment of femoral shaft fractures. Trochanteric intramedullary nails, which have a proximal lateral bend, are specifically designed for trochanteric insertion. When combined with the modified insertion technique, trochanteric intramedullary nails reduce iatrogenic fracture comminution and varus malalignment. We herein describe technical aspects of trochanteric intramedullary nailing for femoral shaft fractures to improve its application and prevent implant-derived complications.

  2. Nontraumatic Fracture of the Femoral Condylar Prosthesis in a Total Knee Arthroplasty Leading to Mechanical Failure

    Directory of Open Access Journals (Sweden)

    Girish N. Swamy

    2014-01-01

    Full Text Available This paper reports a case of fatigue fracture of the femoral component in a cruciate-retaining cemented total knee arthroplasty (TKA. A 64-year-old man had undergone a primary TKA for osteoarthritis 10 years previously at another institution using the PFC-Sigma prosthesis. The patient recovered fully and was back to his regular activities. He presented with a history of sudden onset pain and locking of the left knee since the preceding three months. There was no history of trauma, and the patient was mobilizing with difficulty using crutches. Radiographs revealed fracture of the posterior condyle of the femoral prosthesis. Revision surgery was performed as an elective procedure revealing the broken prosthesis. The TC3RP-PFC revision prosthesis was used with a medial parapatellar approach. The patient recovered fully without any squeal. Mechanical failure of the knee arthroplasty prosthesis is rare, and nontraumatic fracture of the femoral metallic component has not been reported before.

  3. Nontraumatic fracture of the femoral condylar prosthesis in a total knee arthroplasty leading to mechanical failure.

    Science.gov (United States)

    Swamy, Girish N; Quah, Conal; Bagouri, Elmunzar; Badhe, Nitin P

    2014-01-01

    This paper reports a case of fatigue fracture of the femoral component in a cruciate-retaining cemented total knee arthroplasty (TKA). A 64-year-old man had undergone a primary TKA for osteoarthritis 10 years previously at another institution using the PFC-Sigma prosthesis. The patient recovered fully and was back to his regular activities. He presented with a history of sudden onset pain and locking of the left knee since the preceding three months. There was no history of trauma, and the patient was mobilizing with difficulty using crutches. Radiographs revealed fracture of the posterior condyle of the femoral prosthesis. Revision surgery was performed as an elective procedure revealing the broken prosthesis. The TC3RP-PFC revision prosthesis was used with a medial parapatellar approach. The patient recovered fully without any squeal. Mechanical failure of the knee arthroplasty prosthesis is rare, and nontraumatic fracture of the femoral metallic component has not been reported before.

  4. Herniography off femoral, obturator and perineal hernias

    International Nuclear Information System (INIS)

    Ekberg, O.; Nordblom, I.; Fork, F.T.; Gullmo, A.

    1985-01-01

    Positive contrast herniography was used in the workup of 550 patients with unclear groin pain. The majority of these patients had rather characteristic hernias of indirect, direct or femoral type. However, now and then diagnostic problems arose. A femoral hernia may look like a direct or even obturator hernia. There is also a variety of multilocular femoral hernias and other types. A femoral hernia may be present together with other hernias in the ipsilateral or contralateral groin. Obturator hernias are usually small but are always confined to the obturator canal laterally in the obturator foramen. Abnormalities in the pouch of Douglas may include a deep rectogenital pouch, diverticula and true herniations. These uncommon herniographic findings are described and discussed. (orig.) [de

  5. SEX DETERMINATION FROM FEMORAL HEAD DIAMETERS IN ...

    African Journals Online (AJOL)

    hi-tech

    2000-03-01

    Mar 1, 2000 ... In medico-legal cases where sophisticated methods of sex determination is lacking, these ... scientific methods(3). Using the visual method ... between the sexes and the values of the right and left femoral head diameters.

  6. From the Editor Vol: 6 number 2

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2005-04-01

    Full Text Available From the Editor Dear TOJDE’S Readers Time flies. Another quarter has begun. It is a great pleasure to welcome you to the 18th issue, the Volume: 6, Number: 2 of The Turkish Online Journal of Distance Education (TOJDE, of looking forward. TOJDE has been driving and shaping by our editorial board, reviewers, authors and even unbelievable readers. In the April 2005 issue, TOJDE publishes peer-reviewed distance education articles under four umbrellas: applications, feature topics, researches, and support systems. In addition, it publishes short and non-peer-reviewed book reviews and editorial letters. The main goal of TOJDE is to provide you with exclusive resources with the highest quality, and also to reach diverse audiences, as highly qualified individuals and researchers, around the world. Also, I am excited about that TOJDE is referenced as a course material by diverse institutions from the globe and very proud to share this news with you. You can see details in the news section. In this issue, it has been given place to two notes for editor submissions, eleven articles, two book reviews, 8 news, one journal about information and communication technology and one institution about technology integration via distance education named as RETA. And also interesting links deal with TOJDE take place in the literature. This issue's articles came from Canada, India, Malaysia, Nigeria, Turkey, United Kingdom and United States (according to alphabetical order. The first “Notes for Editors” is from Turkey on Using of Marketing Communication for Distance Education Institutions submitted by Dr. R. Ayhan YILMAZ, Anadolu University, Communication Sciences Faculty, Eskisehir, TURKEY. And second one arrived from India. It is titled as “Information and Communication Technology for Poverty Reduction” written by Motilal SHARMA. The first article came from Canada. It is entitled as “Understanding PISA” written by Dr. Stephen DOWNES. He mentions in his paper

  7. From Editor vol 11, No.4

    Directory of Open Access Journals (Sweden)

    Ugur Demiray

    2010-10-01

    Full Text Available Greetings Dear readers of TOJDE,TOJDE is appeared on your screen now as Volume 11, Number: 4. In this issue it is published 4 notes for Editor, 12 articles, 2 book and one conference reviews. And this time, 27 authors from 10 different countries are placed. These published articles are from Bangldesh, Greece, India, Israel, Malaysia, Nigeria, Portugal, Singapore, Turkey and USA.The first Notes for editor arrived from USA, written by Kevin YEE and Jace HARGIS. They focused on PREZI: A Different Way to Present. Prezi represents the first step toward other visual tools that are not, strictly speaking, and presentations at all, but may yet find uses in classrooms. Browser-based programs that allow for concept mapping and brainstorming (sometimes with drawing and even inter-user chat functionality approximate some of prezi’s best features yet stand on their own as organizing tools that provide inspiration for the users. Examples include bubble.us, Thinkature, Mindmeister, and Graphic Organizer. The second notes for editor is titled as “Investigating the Factor Structure ıf The Blog Attitude Scale” which is written by Zahra SHAHSAVAR, Tan Bee HOON, S. Vahid ARYADOUST from Malaysia. Their study reports the design and development of a blog attitude scale (BAS. In exploratory factor analysis, three factors were discovered: blog anxiety, blog desirability, and blog self-efficacy; 14 items were excluded. The extracted items were subjected to a confirmatory factor analysis which lent further support to the BAS underpinning structure. “Implementation of An Online Teacher Assessment/Appraisal In Technical Education Institution: A Case Study” is the third paper for “Notes for Editor” section of TOJDE’s in this issue. It has written by Sraboni MANDAL, Dr. SANJAY, Dajnish SHRIVASTAVA from National Institute of Technology, Jamshedpur, INDIA. The purpose to discusses a case study of implementation of teacher appraisal system which initially non

  8. THE NEW ONLINE METADATA EDITOR FOR GENERATING STRUCTURED METADATA

    Energy Technology Data Exchange (ETDEWEB)

    Devarakonda, Ranjeet [ORNL; Shrestha, Biva [ORNL; Palanisamy, Giri [ORNL; Hook, Leslie A [ORNL; Killeffer, Terri S [ORNL; Boden, Thomas A [ORNL; Cook, Robert B [ORNL; Zolly, Lisa [United States Geological Service (USGS); Hutchison, Viv [United States Geological Service (USGS); Frame, Mike [United States Geological Service (USGS); Cialella, Alice [Brookhaven National Laboratory (BNL); Lazer, Kathy [Brookhaven National Laboratory (BNL)

    2014-01-01

    Nobody is better suited to describe data than the scientist who created it. This description about a data is called Metadata. In general terms, Metadata represents the who, what, when, where, why and how of the dataset [1]. eXtensible Markup Language (XML) is the preferred output format for metadata, as it makes it portable and, more importantly, suitable for system discoverability. The newly developed ORNL Metadata Editor (OME) is a Web-based tool that allows users to create and maintain XML files containing key information, or metadata, about the research. Metadata include information about the specific projects, parameters, time periods, and locations associated with the data. Such information helps put the research findings in context. In addition, the metadata produced using OME will allow other researchers to find these data via Metadata clearinghouses like Mercury [2][4]. OME is part of ORNL s Mercury software fleet [2][3]. It was jointly developed to support projects funded by the United States Geological Survey (USGS), U.S. Department of Energy (DOE), National Aeronautics and Space Administration (NASA) and National Oceanic and Atmospheric Administration (NOAA). OME s architecture provides a customizable interface to support project-specific requirements. Using this new architecture, the ORNL team developed OME instances for USGS s Core Science Analytics, Synthesis, and Libraries (CSAS&L), DOE s Next Generation Ecosystem Experiments (NGEE) and Atmospheric Radiation Measurement (ARM) Program, and the international Surface Ocean Carbon Dioxide ATlas (SOCAT). Researchers simply use the ORNL Metadata Editor to enter relevant metadata into a Web-based form. From the information on the form, the Metadata Editor can create an XML file on the server that the editor is installed or to the user s personal computer. Researchers can also use the ORNL Metadata Editor to modify existing XML metadata files. As an example, an NGEE Arctic scientist use OME to register

  9. Bilateral femoral neck fractures following pelvic irradiation

    International Nuclear Information System (INIS)

    Mitsuda, Kenji; Nishi, Hosei; Oba, Hiroshi

    1977-01-01

    Over 300 cases of femoral neck fractures following radiotherapy for intrapelvic malignant tumor have been reported in various countries since Baensch reported this disease in 1927. In Japan, 40 cases or so have been reported, and cases of bilateral femoral neck fractures have not reached to ten cases. The authors experienced a case of 75 year-old female who received radiotherapy for cancer of the uterus, and suffered from right femoral neck fracture 3 months after and left femoral neck fracture one year and half after. As clinical symptoms, she had not previous history of trauma in bilateral femurs, but she complained of a pain in a hip joint and of gait disturbance. The pain in left femoral neck continued for about one month before fracture was recognized with roentgenogram. As histopathological findings, increase of fat marrow, decrease of bone trabeculae, and its marked degeneration were recognized. Proliferation of some blood vessels was found out, but thickness of the internal membrane and thrombogenesis were not recognized. Treatment should be performed according to degree of displacement of fractures. In this case, artificial joint replacement surgery was performed to the side of fracture of this time, because this case was bilateral femoral neck fractures and the patient had received artificial head replacement surgery in the other side of fracture formerly. (Tsunoda, M.)

  10. Editorial first issue: Letter from the Editor

    Directory of Open Access Journals (Sweden)

    Farinaz Nasirinezhad

    2016-08-01

    Full Text Available Welcome to the first issue of Journal of Medical Physiology! Journal of Medical Physiology is a high-quality, peer reviewed, open access journal which will focus on physiology, biology, and neuroscience and their applications in clinic from the molecular levels to the levels of organs and systems.  In recent years knowledge of physiology has been under a great progress and is being taught as one of the major courses in medicine and allied fields in the universities. Many researchers are doing research in this field and try to find the basic mechanism and appropriate solution for diseases which are difficult to treat. The editorial board wants to create a balanced journal to help the researchers in the field of medicine and physiology to share the results of their research work. Like all good science, medical physiology has no national boundaries. Although we each have found our own niche where we work and feel most comfortable, science language is a common language and by this language scientist can learn from each other. We want Journal of Medical Physiology to be an international forum for sharing the best ideas. It will help researcher in the field of medicine and physiology to keep up with the science. We hope that this journal plays a major role in the development of the physiological sciences and contribute to the diffusion of scientific knowledge and to promote discussion among scientist. The journal will include original researches that are practical applications of known techniques as well as theoretical advances at the physiological sciences and medicine. I consider it a great honor being as Editor-in-Chief of Journal of Medical Physiology and I will do my best to face all challenges that confront the journal and striving to increase the quality and impact of the journal's content. Despite the inevitable push towards publishing in the highest impact factor journals possible, the other side of the coin is ensuring that your work is

  11. Red's natural editor, a program designed to edit FORTRAN programs

    International Nuclear Information System (INIS)

    Cullen, D.E.

    1993-01-01

    An EDITOR code is documented which supplements the 1994 ENDF Pre-processing Code Package which is available from the IAEA Nuclear Data Section for the processing of ENDF formatted nuclear data libraries. (author)

  12. Designing Epigenome Editors: Considerations of Biochemical and Locus Specificities.

    Science.gov (United States)

    Sen, Dilara; Keung, Albert J

    2018-01-01

    The advent of locus-specific protein recruitment technologies has enabled a new class of studies in chromatin biology. Epigenome editors enable biochemical modifications of chromatin at almost any specific endogenous locus. Their locus specificity unlocks unique information including the functional roles of distinct modifications at specific genomic loci. Given the growing interest in using these tools for biological and translational studies, there are many specific design considerations depending on the scientific question or clinical need. Here we present and discuss important design considerations and challenges regarding the biochemical and locus specificities of epigenome editors. These include how to account for the complex biochemical diversity of chromatin; control for potential interdependency of epigenome editors and their resultant modifications; avoid sequestration effects; quantify the locus specificity of epigenome editors; and improve locus specificity by considering concentration, affinity, avidity, and sequestration effects.

  13. Particle Track Visualization using the MCNP Visual Editor

    International Nuclear Information System (INIS)

    Schwarz, Randolph A.; Carter, Lee; Brown, Wendi A.

    2001-01-01

    The Monte Carlo N-Particle (MCNP) visual editor1,2,3 is used throughout the world for displaying and creating complex MCNP geometries. The visual editor combines the Los Alamos MCNP Fortran code with a C front end to provide a visual interface. A big advantage of this approach is that the particle transport routines for MCNP are available to the visual front end. The latest release of the visual editor by Pacific Northwest National Laboratory enables the user to plot transport data points on top of a two-dimensional geometry plot. The user can plot source points, collisions points, surface crossings, and tally contributions. This capability can be used to show where particle collisions are occurring, verify the effectiveness of the particle biasing, or show which collisions contribute to a tally. For a KCODE (criticality source) calculation, the visual editor can be used to plot the source points for specific cycles

  14. Expectations of an editor in case of an incident

    International Nuclear Information System (INIS)

    Widmer, H.P.

    1997-01-01

    Our major expectations about information of nuclear power station operators are: Truthfulness, comprehensibility, availability and editor's disposal when needed. The information must be clear and true. It has to give an account of the complex facts in which laymen readers fully understand. Editors rely on scientific support and the spokespersons' tolerance for media specific particularities; such as, competition, to be first in information, and time pressure. (orig.) [de

  15. Developing Visual Editors for High-Resolution Haptic Patterns

    DEFF Research Database (Denmark)

    Cuartielles, David; Göransson, Andreas; Olsson, Tony

    2012-01-01

    In this article we give an overview of our iterative work in developing visual editors for creating high resolution haptic patterns to be used in wearable, haptic feedback devices. During the past four years we have found the need to address the question of how to represent, construct and edit high...... resolution haptic patterns so that they translate naturally to the user’s haptic experience. To solve this question we have developed and tested several visual editors...

  16. Subtrochanteric Femoral Fracture during Trochanteric Nailing for the Treatment of Femoral Shaft Fracture

    OpenAIRE

    Yun, Ho Hyun; Oh, Chi Hun; Yi, Ju Won

    2013-01-01

    We report on three cases of subtrochanteric femoral fractures during trochanteric intramedullary nailing for the treatment of femoral shaft fractures. Trochanteric intramedullary nails, which have a proximal lateral bend, are specifically designed for trochanteric insertion. When combined with the modified insertion technique, trochanteric intramedullary nails reduce iatrogenic fracture comminution and varus malalignment. We herein describe technical aspects of trochanteric intramedullary nai...

  17. Real time processing of neutron monitor data using the edge editor algorithm

    Directory of Open Access Journals (Sweden)

    Mavromichalaki Helen

    2012-09-01

    Full Text Available The nucleonic component of the secondary cosmic rays is measured by the worldwide network of neutron monitors (NMs. In most cases, a NM station publishes the measured data in a real time basis in order to be available for instant use from the scientific community. The space weather centers and the online applications such as the ground level enhancement (GLE alert make use of the online data and are highly dependent on their quality. However, the primary data in some cases are distorted due to unpredictable instrument variations. For this reason, the real time primary data processing of the measured data of a station is necessary. The general operational principle of the correction algorithms is the comparison between the different channels of a NM, taking advantage of the fact that a station hosts a number of identical detectors. Median editor, Median editor plus and Super editor are some of the correction algorithms that are being used with satisfactory results. In this work an alternative algorithm is proposed and analyzed. The new algorithm uses a statistical approach to define the distribution of the measurements and introduces an error index which is used for the correction of the measurements that deviate from this distribution.

  18. Femoral rotation unpredictably affects radiographic anatomical lateral distal femoral angle measurements

    DEFF Research Database (Denmark)

    Miles, James Edward

    2016-01-01

    Objective: To describe the effects of internal and external femoral rotation on radiographic measurements of the anatomical lateral distal femoral angle (a-LDFA) using two methods for defining the anatomical proximal femoral axis (a-PFA). Methods: Digital radiographs were obtained of 14 right...... femora at five degree intervals from 10° external rotation to 10° internal rotation. Using freely available software, a-LDFA measurements were made using two different a-PFA by a single observer on one occasion. Results: Mean a-LDFA was significantly greater at 10° external rotation than at any other...... rotation. The response of individual femora to rotation was unpredictable, although fairly stable within ±5° of zero rotation. Mean a-LDFA for the two a-PFA methods differed by 1.5°, but were otherwise similarly affected by femoral rotation. Clinical significance: If zero femoral elevation can be achieved...

  19. Evaluation of a pig femoral head osteonecrosis model

    Directory of Open Access Journals (Sweden)

    Kim Harry

    2010-03-01

    Full Text Available Abstract Background A major cause of osteonecrosis of the femoral head is interruption of a blood supply to the proximal femur. In order to evaluate blood circulation and pathogenetic alterations, a pig femoral head osteonecrosis model was examined to address whether ligature of the femoral neck (vasculature deprivation induces a reduction of blood circulation in the femoral head, and whether transphyseal vessels exist for communications between the epiphysis and the metaphysis. We also tested the hypothesis that the vessels surrounding the femoral neck and the ligamentum teres represent the primary source of blood flow to the femoral head. Methods Avascular osteonecrosis of the femoral head was induced in Yorkshire pigs by transecting the ligamentum teres and placing two ligatures around the femoral neck. After heparinized saline infusion and microfil perfusion via the abdominal aorta, blood circulation in the femoral head was evaluated by optical and CT imaging. Results An angiogram of the microfil casted sample allowed identification of the major blood vessels to the proximal femur including the iliac, common femoral, superficial femoral, deep femoral and circumflex arteries. Optical imaging in the femoral neck showed that a microfil stained vessel network was visible in control sections but less noticeable in necrotic sections. CT images showed a lack of microfil staining in the epiphysis. Furthermore, no transphyseal vessels were observed to link the epiphysis to the metaphysis. Conclusion Optical and CT imaging analyses revealed that in this present pig model the ligatures around the femoral neck were the primary cause of induction of avascular osteonecrosis. Since the vessels surrounding the femoral neck are comprised of the branches of the medial and the lateral femoral circumflex vessels, together with the extracapsular arterial ring and the lateral epiphyseal arteries, augmentation of blood circulation in those arteries will improve

  20. Comparison of femoral morphology and bone mineral density between femoral neck fractures and trochanteric fractures.

    Science.gov (United States)

    Maeda, Yuki; Sugano, Nobuhiko; Saito, Masanobu; Yonenobu, Kazuo

    2011-03-01

    Many studies that analyzed bone mineral density (BMD) and skeletal factors of hip fractures were based on uncalibrated radiographs or dual-energy xray absorptiometry (DXA). Spatial accuracy in measuring BMD and morphologic features of the femur with DXA is limited. This study investigated differences in BMD and morphologic features of the femur between two types of hip fractures using quantitative computed tomography (QCT). Forty patients with hip fractures with normal contralateral hips were selected for this study between 2003 and 2007 (trochanteric fracture, n=18; femoral neck fracture, n=22). Each patient underwent QCT of the bilateral femora using a calibration phantom. Using images of the intact contralateral femur, BMD measurements were made at the point of minimum femoral-neck cross-sectional area, middle of the intertrochanteric region, and center of the femoral head. QCT images also were used to measure morphologic features of the hip, including hip axis length, femoral neck axis length, neck-shaft angle, neck width, head offset, anteversion of the femoral neck, and cortical index at the femoral isthmus. No significant differences were found in trabecular BMD between groups in those three regions. Patients with trochanteric fractures showed a smaller neck shaft angle and smaller cortical index at the femoral canal isthmus compared with patients with femoral neck fractures. We conclude that severe osteoporosis with thinner cortical bone of the femoral diaphysis is seen more often in patients with trochanteric fracture than in patients with femoral neck fracture. Level IV, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.

  1. Correlation of ultrasound appearance, gross anatomy, and histology of the femoral nerve at the femoral triangle.

    Science.gov (United States)

    Lonchena, Tiffany K; McFadden, Kathryn; Orebaugh, Steven L

    2016-01-01

    Correlation between ultrasound appearance, gross anatomic characteristics, and histologic structure of the femoral nerve (FN) is lacking. Utilizing cadavers, we sought to characterize the anatomy of the FN, and provide a quantitative measure of its branching. We hypothesize that at the femoral crease, the FN exists as a group of nerve branches, rather than a single nerve structure, and secondarily, that this transition into many branches is apparent on ultrasonography. Nineteen preserved cadavers were investigated. Ultrasonography was sufficient to evaluate the femoral nerve in nine specimens; gross dissection was utilized in all 19. Anatomic characteristics were recorded, including distances from the inguinal ligament to femoral crease, first nerve branch, and complete arborization of the nerve. The nerves from nine specimens were excised for histologic analysis. On ultrasound, the nerve became more flattened, widened, and less discrete as it coursed distally. Branching of the nerve was apparent in 12 of 18 images, with mean distance from inguinal ligament of 3.9 (1.0) cm. However, upon dissection, major branching of the femoral nerve occurred at 3.1 (1.0) cm distal to the inguinal ligament, well proximal to the femoral crease. Histologic analysis was consistent with findings at dissection. The femoral nerve arborizes into multiple branches between the inguinal ligament and the femoral crease. Initial branching is often high in the femoral triangle. As hypothesized, the FN exists as a closely associated group of nerve branches at the level of the femoral crease; however, the termination of the nerve into multiple branches is not consistently apparent on ultrasonography.

  2. EDITORIAL: Incoming Editor-in-Chief Incoming Editor-in-Chief

    Science.gov (United States)

    Birch, David

    2012-01-01

    It is a pleasure and an honour for me to be taking over as Editor-in-Chief of Measurement Science and Technology. MST is well known across research communities worldwide as a leading journal in which to publish new techniques and instrumentation. It has gained this enviable position largely because of the excellent guidance of its Editorial Board and dedicated staff at Institute of Physics Publishing over many years. I want to highlight in particular the contribution of the outgoing Editor Peter Hauptmann, and other Editors before him, in making the journal truly international. We thank Peter immensely for all his hard work in leading the journal, having exceptionally served two terms, each of five years. I come into the post of Editor at a very interesting and challenging time for research. The global recession is leading to cuts in research funding in many countries, researchers and their outputs are coming under closer scrutiny than ever before, and more is being expected of them. Journals play a critical role in monitoring and maintaining research standards, but we should be careful not to assume that journal Impact Factor is the sole measure of research quality. Although expediency may sometimes demand it, Impact Factor, as practitioners know, is subject dependent. One of the great things about science and technology for me is its level playing field. The key point is still innovation no matter where the work is done or where it is published. MST has a long pedigree of being the natural home of the highest quality papers from leading researchers wishing to report novel instrumentation and techniques. 2013 will mark the 90th anniversary of MST and we look forward to celebrating in style its sustained success. I recall with pride the first paper I published in Journal of Physics E: Scientific Instruments (as MST was previously titled) back in 1977. The paper reported the design and application of an early fluorescence lifetime spectrometer that I had constructed

  3. Femoral head vitality after intracapsular hip fracture

    International Nuclear Information System (INIS)

    Stroemqvist, B.

    1983-01-01

    Femoral head vitality before, during and at various intervals from the operation was determined by tetracycline labeling and/or 99 sp (m)Tc-MDP scintimetry. In a three-year follow-up, healing prognosis could be determined by scintimetry 3 weeks from operation; deficient femoral head vitality predicting healing complications and retained vitality predicting uncomplicated healing. A comparison between pre- and postoperative scintimetry indicated that further impairment of the femoral head vitality could be caused by the operative procedure, and as tetracycline labeling prior to and after fracture reduction in 370 fractures proved equivalent, it was concluded that the procedure of osteosynthesis probably was responsible for capsular vessel injury, using a four-flanged nail. The four-flanged nail was compared with a low-traumatic method of osteosynthesis, two hook-pins, in a prospective randomized 14 month study, and the postoperative femoral head vitality was significantly better in the hook-pin group. This was also clearly demonstrated in a one-year follow-up for the fractures included in the study. Parallel to these investigations, the reliability of the methods of vitality determination was found satisfactory in methodologic studies. For clinical purpose, primary atraumatic osteosynthesis, postoperative prognostic scintimetry and early secondary arthroplasty when indicated, was concluded to be the appropriate approach to femoral neck fracture treatment. (Author)

  4. Avascular necrosis of the femoral head

    International Nuclear Information System (INIS)

    Kokubo, Takeshi; Takatori, Yoshio; Kamogawa, Morihide; Nakamura, Toshitaka; Ninomiya, Setsuo; Yoshikawa, Kohki; Itai, Yuji; Iio, Masahiro; Mitamura, Tadayuki

    1990-01-01

    T1-weighted MR images of thirty-six hips in 25 patients with avascular necrosis of the femoral head were obtained two to five times during the course of 2 to 26 months. We investigated these MR images in the light of the chronological change and compared them with plain radiographs. MR images changes in 16 femoral head; in general, the abnormal low intensity area in the femoral head reduced in extent and the internal high intensity area became smaller of disappeared. Thirteen femoral heads among them became more flattened on plain radiographs in the same period. It is noted that four different zones are defined in the femoral head after bone necrosis takes place: the dead bone marrow, the dead marrow which still contains fat, the reactive interface and the hyperemic bone marrow. In T1-weighted MR images, the dead bone marrow, the reactive interface and the hyperemic bone marrow are demonstrated as low intensity area, while the dead marrow containing fat may remain high in intensity. On the basis of this knowledge of histopathology and MR images of this disease, we suggest that reduction of the abnormal low intensity area and disappearance of the internal high intensity area on MR images can be regarded as diminution of hyperemia in the living bone marrow and loss of fat in the dead bone marrow, respectively. (author)

  5. Using a calliper to restore the centre of the femoral head during total hip replacement.

    Science.gov (United States)

    Hill, J C; Archbold, H A P; Diamond, O J; Orr, J F; Jaramaz, B; Beverland, D E

    2012-11-01

    Restoration of leg length and offset is an important goal in total hip replacement. This paper reports a calliper-based technique to help achieve these goals by restoring the location of the centre of the femoral head. This was validated first by using a co-ordinate measuring machine to see how closely the calliper technique could record and restore the centre of the femoral head when simulating hip replacement on Sawbone femur, and secondly by using CT in patients undergoing hip replacement. Results from the co-ordinate measuring machine showed that the centre of the femoral head was predicted by the calliper to within 4.3 mm for offset (mean 1.6 (95% confidence interval (CI) 0.4 to 2.8)) and 2.4 mm for vertical height (mean -0.6 (95% CI -1.4 to 0.2)). The CT scans showed that offset and vertical height were restored to within 8 mm (mean -1 (95% CI -2.1 to 0.6)) and -14 mm (mean 4 (95% CI 1.8 to 4.3)), respectively. Accurate assessment and restoration of the centre of the femoral head is feasible with a calliper. It is quick, inexpensive, simple to use and can be applied to any design of femoral component.

  6. Biphasic threat to femoral head perfusion in abduction: arterial hypoperfusion and venous congestion

    Energy Technology Data Exchange (ETDEWEB)

    Yousefzadeh, David K. [Comer Children' s Hospital, Department of Radiology, Chicago, IL (United States); University of Chicago, Department of Radiology, Chicago, IL (United States); Jaramillo, Diego [Children' s Hospital of Philadelphia, Department of Radiology, Philadelphia, PA (United States); Johnson, Neil [Cincinnati Children' s Hospital, Department of Radiology, Cincinnati, OH (United States); Doerger, Kirk [Radiology Associates of Northern Kentucky, Crestview Hills, KY (United States); Sullivan, Christopher [University of Chicago, Department of Surgery, Chicago, IL (United States)

    2010-09-15

    Hip abduction can cause avascular necrosis (AVN) of the femoral head in infants. To compare the US perfusion pattern of femoral head cartilage in neutral position with that in different degrees and duration of abduction, testing the venous congestion theory of post-abduction ischemia. In 20 neonates, the Doppler flow characteristics of the posterosuperior (PS) branch of the femoral head cartilage feeding vessels were evaluated in neutral and at 30 , 45 , and 60 abduction. In three neonates the leg was held in 45-degree abduction and flow was assessed at 5, 10, and 15 min. Male/female ratio was 11/9 with a mean age of 1.86 {+-} 0.7 weeks. The peak systolic velocities (PSV) declined in all three degrees of abduction. After 15 min of 45-degree abduction, the mean PSV declined and showed an absent or reversed diastolic component and undetectable venous return. No perfusion was detected at 60-degree abduction. Abduction-induced femoral head ischemia is biphasic and degree- and duration-dependent. In phase I there is arterial hypoperfusion and in phase II there is venous congestion. A new pathogeneses for femoral head ischemia is offered. (orig.)

  7. From the Editor-in-Chief

    Directory of Open Access Journals (Sweden)

    Simeon Oka

    2011-01-01

    science. Included herein is a collection of original refereed research papers by well-established researchers in the field of nonlinear science. We hope that these papers will prove to be a timely and valuable reference for researchers in this area. Analytical approach to thermal science is challenging and promising, and is playing an even more important role in optimal design of various thermal problems. Considering this fact, selection of the papers for this special issue has the aim to show illustrating approaches to various thermal problems by various methods including fractal geometry and fractional calculus, and the present special issue can be used as paradigms for many other applications. I am deeply grateful to the Guest editors, Professor Ji-Huan He (now with National Engineering Laboratory of Modern Silk, Soochow University, Suzhow, China and Professor Lianchun Zheng (Department of Mathematics and Mechanics, University of Science and Technology Beijing, Beijing, China, for excellent paper selection, the job which is at the same time highly professional and delicate. I am sure, that readers will obtain realistic insight in how to apply the methods presented in this special issue to various problems.

  8. From the Editor-in-Chief

    Directory of Open Access Journals (Sweden)

    Simeon Oka

    2011-01-01

    while under review by the Journal." At the end I have a pleasure to frankly appreciate to Professor Jan Erik Johnsson, from Technical University of Denmark, Lyngby, for his contribution, as member of the International Advisory Board from the very beginning, to the scientific scope and orientation of the Journal, and to the quality of the papers published in more than 15 years. I am sorry that his wish was not to be member of the International Advisory Board, since he was retired. In the name of Editorial Boards of the journal Thermal Science I wish to him many nice activities in his free time. Finally, I am happy that, following the wish of Prof. Arun Mujumdar, the world known scientist and member of our International Advisory Board, that I can pay your attention to the link: http://serve.me.nus.edu.sg/arun/E_books.htm, where you can download many interesting e-books, and review of the activity of the Minerals, Metals and Materials Technology Centre, of the Faculty of Engineering, National University of Singapore. April, 2011 Professor Simeon Oka, Ph. D. Editor-in-chief

  9. Selective arteriography in femoral head fractures

    Energy Technology Data Exchange (ETDEWEB)

    Mannella, P; Galeotti, R; Borrelli, M; Benea, G; Massari, L; Chiarelli, G M

    1986-01-01

    The choice between conservative and radical operation in case of femoral neck fractures is very important because it is the determining factor for a successfull therapy. In case of epiphysial necrosis, an endoprosthesis as well as an osteosynthesis will be carried out. Selective arteriography of the medical circumflex artery represents the most reliable study to establish, immediately after the fractures, the possible presence of a post-traumatic ischemic necrosis. Angiography, as a reliable diagnostic tool, has to be carried out in the most selective way and needs the image subtraction technique. The authors report their preliminary results on the reliability of angiography in the femoral epiphyseal ischemic necrosis diagnosed by comparing the results of angiography with the wood light test carried out on the surgically removed femoral head. 18 refs.

  10. 99mTc-MDP scintigraphy of femoral head necrosis following femoral neck fracture

    International Nuclear Information System (INIS)

    Lee, Soon Jin; Lee, Jun Hyung; Kim, Eun Kyung; Lee, Sun Wha; Kim, Soon Yong

    1985-01-01

    Secondary ischemic necrosis of femoral head due to loss of blood supply following to femoral neck fracture is well known. The regional distribution of bone-seeking radiopharmaceuricals in the skeleton can depend on a number of factors, but bone blood flow is a major physiological determinant of regional skeletal uptake of Tc-99m polyphosphate and bone imaging may thus be used for the evaluation of vascularity of the femoral head. The authors made a comparative study of scintigraphic findings and operative findings of 28 cases of femoral neck fracture treated at Kyung Hee University Hospital from April 1980 to May 1984. The results were as follows: 1. In 16 cases of proven avascular necorsis of femoral head, scintigraphy showed absent or decreased activity in 14 cases (87.5%), while radiography showed increased density in 10 cases (62.5%). 2. In 12 cases of proven vital femoral head, scintigraphy showed increased activity in 9 cases (75%) and radiography showed decreased density in 9 cases (75%). 3. 99mTc-MDP scintigraphy was an excellent and useful method for assessing bone vitality of femoral head

  11. {sup 99m}Tc-MDP scintigraphy of femoral head necrosis following femoral neck fracture

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Soon Jin; Lee, Jun Hyung; Kim, Eun Kyung; Lee, Sun Wha; Kim, Soon Yong [Kyung Hee University School of Medicine, Seoul (Korea, Republic of)

    1985-02-15

    Secondary ischemic necrosis of femoral head due to loss of blood supply following to femoral neck fracture is well known. The regional distribution of bone-seeking radiopharmaceuricals in the skeleton can depend on a number of factors, but bone blood flow is a major physiological determinant of regional skeletal uptake of Tc-99m polyphosphate and bone imaging may thus be used for the evaluation of vascularity of the femoral head. The authors made a comparative study of scintigraphic findings and operative findings of 28 cases of femoral neck fracture treated at Kyung Hee University Hospital from April 1980 to May 1984. The results were as follows: 1. In 16 cases of proven avascular necorsis of femoral head, scintigraphy showed absent or decreased activity in 14 cases (87.5%), while radiography showed increased density in 10 cases (62.5%). 2. In 12 cases of proven vital femoral head, scintigraphy showed increased activity in 9 cases (75%) and radiography showed decreased density in 9 cases (75%). 3. 99mTc-MDP scintigraphy was an excellent and useful method for assessing bone vitality of femoral head.

  12. Advanced software development workstation. Engineering scripting language graphical editor: DRAFT design document

    Science.gov (United States)

    1991-01-01

    The Engineering Scripting Language (ESL) is a language designed to allow nonprogramming users to write Higher Order Language (HOL) programs by drawing directed graphs to represent the program and having the system generate the corresponding program in HOL. The ESL system supports user generation of HOL programs through the manipulation of directed graphs. The components of this graphs (nodes, ports, and connectors) are objects each of which has its own properties and property values. The purpose of the ESL graphical editor is to allow the user to create or edit graph objects which represent programs.

  13. frequency of ipsilateral femoral neck fractures in patients

    African Journals Online (AJOL)

    Background: Ipsilateral associated femoral neck and shaft fractures are reported to occur in 2.5-6% of all femoral shaft ... nailing of the shaft fracture, which makes treatment of the neck ... chest, spine), while the other had maxillofacial injuries.

  14. Core competencies for scientific editors of biomedical journals: consensus statement.

    Science.gov (United States)

    Moher, David; Galipeau, James; Alam, Sabina; Barbour, Virginia; Bartolomeos, Kidist; Baskin, Patricia; Bell-Syer, Sally; Cobey, Kelly D; Chan, Leighton; Clark, Jocalyn; Deeks, Jonathan; Flanagin, Annette; Garner, Paul; Glenny, Anne-Marie; Groves, Trish; Gurusamy, Kurinchi; Habibzadeh, Farrokh; Jewell-Thomas, Stefanie; Kelsall, Diane; Lapeña, José Florencio; MacLehose, Harriet; Marusic, Ana; McKenzie, Joanne E; Shah, Jay; Shamseer, Larissa; Straus, Sharon; Tugwell, Peter; Wager, Elizabeth; Winker, Margaret; Zhaori, Getu

    2017-09-11

    Scientific editors are responsible for deciding which articles to publish in their journals. However, we have not found documentation of their required knowledge, skills, and characteristics, or the existence of any formal core competencies for this role. We describe the development of a minimum set of core competencies for scientific editors of biomedical journals. The 14 key core competencies are divided into three major areas, and each competency has a list of associated elements or descriptions of more specific knowledge, skills, and characteristics that contribute to its fulfillment. We believe that these core competencies are a baseline of the knowledge, skills, and characteristics needed to perform competently the duties of a scientific editor at a biomedical journal.

  15. Foreword from the Editor-in-Chief

    Directory of Open Access Journals (Sweden)

    Jon M. Truby

    2012-04-01

    Highness the Emir, Sheikh Hamad bin Khalifa Al Thani, for this vision. I am grateful to all of those involved in the production of this and future issues, and hope the demands of our readers are met. May the journal continue to be a success. Dr. Jon M. Truby Ph.D, Editor-in-Chief

  16. EDITORIAL: New Editor-in-Chief for Nanotechnology New Editor-in-Chief for Nanotechnology

    Science.gov (United States)

    Couzin, Nina

    2009-01-01

    Nanotechnology is proud to announce the appointment of Professor Mark Reed, Yale University, as the new Editor-in-Chief from January 2009. Mark Reed holds the Harold Hodgkinson Chair of Engineering and Applied Science at Yale University. He has made significant contributions in the areas of quantum dots, electronic transport in nanoscale and mesoscopic systems, artificially structured materials and devices, and molecular electronics. Professor Reed has been associated with the journal as an Editorial Board member for a number of years and we are delighted that he has agreed to take on the scientific leadership of the journal in its 20th year. We also take the opportunity to thank Professor Mark Welland, Cambridge University, for his work as Editor-in-Chief since 2001, and for presiding over the re-launch and remarkable growth of the journal since then. Nanotechnology is unique in that it was the first peer-reviewed journal in the area of nanoscience, the first issue appearing in 1990. Since then it has established a distinguished publication record and has become a leading journal covering all aspects of nanoscale science and technology, as well as specializing in in-depth, comprehensive articles not seen in letter format journals. Published weekly and featuring subject sections, the journal is truly multidisciplinary in nature and is an excellent medium to quickly deliver your research results to readers worldwide. Nanotechnology is proud to be offering some of the fastest publication times around (less than three months on average from receipt to online publication). We offer free online access to all published papers for 30 days, ensuring that anyone with access to the internet will be able to read your paper. We were also the first journal to give our authors the opportunity to communicate their research to a wider audience through nanotechweb.org and other IOP websites. See the journal's homepage at www.iop.org/Journals/nano for more details. We are looking

  17. IJIMAI Editors Note - Vol. 4 Issue 3

    Directory of Open Access Journals (Sweden)

    Vicente García-Díaz

    2017-03-01

    This Special Issue tries to show some of the latest researches related to IoT with special emphasis on the basic components of IoT, some of the major applications in which researchers and practitioners are working and especially in aspects related to security, one of the main areas of research related to IoT, with a special emphasis on cloud-based systems. Next, I present a summary of the works that are included in this special issue.

  18. Writing GNU Emacs Extensions Editor Customizations and Creations with Lisp

    CERN Document Server

    Glickstein, Bob

    2010-01-01

    Yes, it is possible to be all things to all people, if you're talking about the Emacs editor. As a user, you can make any kind of customization you want, from choosing the keystrokes that invoke your favorite commands to creating a whole new work environment that looks like nothing ever developed before. It's all in Emacs Lisp -- and in this short but fast-paced book. GNU Emacs is more than an editor; it's a programming environment, a communications package, and many other things. To provide such a broad range of functions, it offers a full version of the Lisp programming language

  19. Predicting Post-Editor Profiles from the Translation Process

    DEFF Research Database (Denmark)

    Singla, Karan; Orrego-Carmona, David; Gonzales, Ashleigh Rhea

    2014-01-01

    The purpose of the current investigation is to predict post-editor profiles based on user behaviour and demographics using machine learning techniques to gain a better understanding of post-editor styles. Our study extracts process unit features from the CasMaCat LS14 database from the CRITT...... of translation process features. The classification and clustering of participants resulting from our study suggest this type of exploration could be used as a tool to develop new translation tool features or customization possibilities....

  20. Data Sharing: A New Editorial Initiative of the International Committee of Medical Journal Editors. Implications for the Editors' Network.

    Science.gov (United States)

    Alfonso, Fernando; Adamyan, Karlen; Artigou, Jean-Yves; Aschermann, Michael; Boehm, Michael; Buendia, Alfonso; Chu, Pao-Hsien; Cohen, Ariel; Cas, Livio Dei; Dilic, Mirza; Doubell, Anton; Echeverri, Dario; Enç, Nuray; Ferreira-González, Ignacio; Filipiak, Krzysztof J; Flammer, Andreas; Fleck, Eckart; Gatzov, Plamen; Ginghina, Carmen; Goncalves, Lino; Haouala, Habib; Hassanein, Mahmoud; Heusch, Gerd; Huber, Kurt; Hulín, Ivan; Ivanusa, Mario; Krittayaphong, Rungroj; Lau, Chu-Pak; Marinskis, Germanas; Mach, François; Moreira, Luiz Felipe; Nieminen, Tuomo; Oukerraj, Latifa; Perings, Stefan; Pierard, Luc; Potpara, Tatjana; Reyes-Caorsi, Walter; Rim, Se-Joong; Rødevand, Olaf; Saade, Georges; Sander, Mikael; Shlyakhto, Evgeny; Timuralp, Bilgin; Tousoulis, Dimitris; Ural, Dilek; Piek, J J; Varga, Albert; Lüscher, Thomas F

    The International Committee of Medical Journal Editors (ICMJE) provides recommendations to improve the editorial standards and scientific quality of biomedical journals. These recommendations range from uniform technical requirements to more complex and elusive editorial issues including ethical aspects of the scientific process. Recently, registration of clinical trials, conflicts of interest disclosure, and new criteria for authorship - emphasizing the importance of responsibility and accountability -, have been proposed. Last year, a new editorial initiative to foster sharing of clinical trial data was launched. This review discusses this novel initiative with the aim of increasing awareness among readers, investigators, authors and editors belonging to the Editors' Network of the European Society of Cardiology. Copyright © 2017. Publicado por Masson Doyma México S.A.

  1. Angiographic analysis of avascular necrosis of a femoral head -selective angiography of medial femoral circumflex artery-

    Energy Technology Data Exchange (ETDEWEB)

    Ryu, Kyung Nam; Yoon, Yup; Lee, Sun Wha; Lim, Jae Hoon [Kyung Hee University Hospital, Seoul (Korea, Republic of)

    1991-07-15

    The degree of anatomical revascularization of a necrotic femoral head and traumatic hip would provide information about treatment and prognosis. The authors analyzed the vascular changes of femoral head among unilateral avascular necrosis, bilateral avascular necrosis, and traumatic hips. Forty - four patients with avascular necrosis and 19 patients with traumatic hips were examined by selective angiography of the medial femoral circumflex artery. In the traumatic hip cases, 12 (63%) showed occlusion, 2 (11%) hypertrophy of the capsular branches, and 5 ( 26 % ) were normal . In the avascular necrosis cases, 15 (25%) showed occlusion, 39 (67%) had hypertrophy of the capsular branches, and 4 (7%) had normal findings. Hypertrophy of the superior capsular branch of the medial femoral circumflex artery is more frequently observed in avascular necrosis than in traumatic hip. Bilateral avascular necrosis reveals more frequent incidences than unilateral cases. Selective angiography could help in the therapy plan and also provide information about the contralateral side.

  2. Angiographic analysis of avascular necrosis of a femoral head -selective angiography of medial femoral circumflex artery-

    International Nuclear Information System (INIS)

    Ryu, Kyung Nam; Yoon, Yup; Lee, Sun Wha; Lim, Jae Hoon

    1991-01-01

    The degree of anatomical revascularization of a necrotic femoral head and traumatic hip would provide information about treatment and prognosis. The authors analyzed the vascular changes of femoral head among unilateral avascular necrosis, bilateral avascular necrosis, and traumatic hips. Forty - four patients with avascular necrosis and 19 patients with traumatic hips were examined by selective angiography of the medial femoral circumflex artery. In the traumatic hip cases, 12 (63%) showed occlusion, 2 (11%) hypertrophy of the capsular branches, and 5 ( 26 % ) were normal . In the avascular necrosis cases, 15 (25%) showed occlusion, 39 (67%) had hypertrophy of the capsular branches, and 4 (7%) had normal findings. Hypertrophy of the superior capsular branch of the medial femoral circumflex artery is more frequently observed in avascular necrosis than in traumatic hip. Bilateral avascular necrosis reveals more frequent incidences than unilateral cases. Selective angiography could help in the therapy plan and also provide information about the contralateral side

  3. Announcement: New Editor-in-Chief Robert C. Kennicutt

    Science.gov (United States)

    Abt, Helmut A.

    1999-05-01

    Effective 1999 July 1, all new manuscripts for Part 1 of The Astrophysical Journal and The Astrophysical Journal Supplement Series should be sent to Dr. Robert C. Kennicutt, Editor-in-Chief The Astrophysical Journal Steward Observatory University of Arizona Tucson, AZ 85721-0065 The other means of contact are telephone, (520) 621-5145 FAX, (520) 621-5153 and e-mail, apj@as.arizona.edu. For express packages please use the street address of 933 North Cherry Avenue. Dr. Kennicutt will be assisted by several of my loyal coworkers, who will move across the street. Manuscripts received before July 1 will be handled by the current editor until most of their problems have been resolved, at which point the remainder will be sent to Dr. Kennicutt's office. Manuscripts for the Letters should, as before, be sent directly to Dr. Alex Dalgarno at the Center for Astrophysics in Cambridge, MA. We are fortunate that a person with as much experience in research and proven good judgment as Dr. Kennicutt is willing to accept this difficult and time-consuming responsibility. He will be only the seventh Managing Editor or Editor-in-Chief that this Journal has had in its 104 years. Please give him the cooperation and help that you have given the current editor. It has been my privilege to work for 28 years with many of the best astrophysicists in the world and to publish their papers. This was done with the help of the AAS Publications Board and AAS officers, the efforts of Peter Boyce and Evan Owens who made the on-line edition of the Journal possible, three Associate Editors, a score of Scientific Editors, a hardworking staff of six in Tucson, up to 25 production controllers and manuscript editors at the University of Chicago Press, and the thousands of astronomers throughout the world who served as referees. The original masthead called this journal ``An International Review of Spectroscopy and Astronomical Physics.'' That subtitle is no longer appropriate because we do not publish

  4. Announcement: New Editor-In Robert C. Kennicutt

    Science.gov (United States)

    Abt, Helmut A.

    1999-06-01

    Effective 1999 July 1, all new manuscripts for Part 1 of The Astrophysical Journal and The Astrophysical Journal Supplement Series should be sent to Dr. Robert C. Kennicutt, Editor-in-Chief The Astrophysical Journal Steward Observatory University of Arizona Tucson, AZ 85721-0065 The other means of contact are telephone, (520) 621-5145 FAX, (520) 621-5153 and e-mail, apj@as.arizona.edu. For express packages please use the street address of 933 North Cherry Avenue. Dr. Kennicutt will be assisted by several of my loyal coworkers, who will move across the street. Manuscripts received before July 1 will be handled by the current editor until most of their problems have been resolved, at which point the remainder will be sent to Dr. Kennicutt's office. Manuscripts for the Letters should, as before, be sent directly to Dr. Alex Dalgarno at the Center for Astrophysics in Cambridge, MA. We are fortunate that a person with as much experience in research and proven good judgment as Dr. Kennicutt is willing to accept this difficult and time-consuming responsibility. He will be only the seventh Managing Editor or Editor-in-Chief that this Journal has had in its 104 years. Please give him the cooperation and help that you have given the current editor. It has been my privilege to work for 28 years with many of the best astrophysicists in the world and to publish their papers. This was done with the help of the AAS Publications Board and AAS officers, the efforts of Peter Boyce and Evan Owens who made the on-line edition of the Journal possible, three Associate Editors, a score of Scientific Editors, a hardworking staff of six in Tucson, up to 25 production controllers and manuscript editors at the University of Chicago Press, and the thousands of astronomers throughout the world who served as referees. The original masthead called this journal ``An International Review of Spectroscopy and Astronomical Physics.'' That subtitle is no longer appropriate because we do not publish

  5. Announcement: New Editor-In-Chief, Robert C. Kennicutt, Jr.

    Science.gov (United States)

    Abt, Helmut A.

    1999-06-01

    Effective 1999 July 1, all new manuscripts for Part 1 of The Astrophysical Journal and The Astrophysical Journal Supplement Series should be sent to Dr. Robert C. Kennicutt, Jr., Editor-in-Chief The Astrophysical Journal Steward Observatory University of Arizona Tucson, AZ 85721-0065 The other means of contact are telephone, (520) 621-5145 FAX, (520) 621-5153 and e-mail, apj@as.arizona.edu. For express packages please use the street address of 933 North Cherry Avenue. Dr. Kennicutt will be assisted by several of my loyal coworkers, who will move across the street. Manuscripts received before July 1 will be handled by the current editor until most of their problems have been resolved, at which point the remainder will be sent to Dr. Kennicutt's office. Manuscripts for the Letters should, as before, be sent directly to Dr. Alex Dalgarno at the Center for Astrophysics in Cambridge, MA. We are fortunate that a person with as much experience in research and proven good judgment as Dr. Kennicutt is willing to accept this difficult and time-consuming responsibility. He will be only the seventh Managing Editor or Editor-in-Chief that this Journal has had in its 104 years. Please give him the cooperation and help that you have given the current editor. It has been my privilege to work for 28 years with many of the best astrophysicists in the world and to publish their papers. This was done with the help of the AAS Publications Board and AAS officers, the efforts of Peter Boyce and Evan Owens who made the on-line edition of the Journal possible, three Associate Editors, a score of Scientific Editors, a hardworking staff of six in Tucson, up to 25 production controllers and manuscript editors at the University of Chicago Press, and the thousands of astronomers throughout the world who served as referees. The original masthead called this journal ``An International Review of Spectroscopy and Astronomical Physics.'' That subtitle is no longer appropriate because we do not

  6. Fibrous dysplasia of the femoral neck

    International Nuclear Information System (INIS)

    Savage, P.E.; Stoker, D.J.

    1984-01-01

    Fibrous dysplasia of the femur is usually observed in the intertrochanteric region. It is rarely confined to the femoral neck. We present four cases illustrating the radiographic appearance and spectrum of this condition which all showed the relatively lucent variety of fibrous dysplasia with varying degrees of expansion and surrounding sclerosis. The natural history of this condition is discussed. (orig.)

  7. Femoral Hernia At Mulago Hospital, Uganda

    African Journals Online (AJOL)

    user

    2004-12-02

    Dec 2, 2004 ... consecutive patients operated for femoral hernia over a period of twelve months. Results: There were ... The age ranged from 42 years to 70 years old with a mean of 54.6 years old. All the .... cholecystectomy. At this point in ...

  8. Radiation-induced femoral head necrosis

    African Journals Online (AJOL)

    2011-03-25

    Mar 25, 2011 ... had open medial menisectomy of the left knee following medial meniscal tear ... postoperative recovery and mobilised full weight-bearing immediately [Figure 6]. ... obtained from the oncologists at the time of this review), and there was a ... previous trauma such as femoral neck fracture, Gaucher's disease ...

  9. Transvenous liver biopsy via the femoral vein

    International Nuclear Information System (INIS)

    Khosa, F.; McNulty, J.G.; Hickey, N.; O'Brien, P.; Tobin, A.; Noonan, N.; Ryan, B.; Keeling, P.W.N.; Kelleher, D.P.; McDonald, G.S.A.

    2003-01-01

    AIM: To study the safety, effectiveness and diagnostic value of transvenous forceps biopsy of the liver in 54 patients with coagulopathy, gross ascites or morbid obesity and suspected liver disease in whom percutaneous liver biopsy was contraindicated. MATERIAL AND METHODS: Forceps biopsy of the liver via the femoral vein was attempted in 54 adult patients with advanced liver disease of unknown aetiology who had coagulation disorders (41 cases), gross ascites (11 cases) or morbid obesity (two cases). In each patient two to six biopsies (average four) were taken using a radial jaw forceps inserted via the right or left femoral vein. RESULTS: The procedure was successful in 53 cases. Hepatic vein catheterization failed in one patient. Adequate liver tissue for diagnosis was obtained in 84% of cases. One patient developed delayed haemorrhage at 12 h from a capsular leak that was undetected during the biopsy procedure. This patient required blood transfusions and laparotomy to control bleeding. There were no deaths in the 53 patients studied. Transient minor chest and shoulder pain was encountered during sheath insertion into a hepatic vein in 23 patients. Three patients developed a femoral vein haematoma, which resolved with conservative treatment. CONCLUSION: Transvenous liver biopsy via the femoral vein is another safe, effective, simple alternative technique of biopsy when the percutaneous route is contraindicated

  10. Postmortem Femoral Blood Concentrations of Risperidone

    DEFF Research Database (Denmark)

    Linnet, Kristian; Johansen, Sys Stybe

    2014-01-01

    Postmortem femoral blood concentrations of the antipsychotic drug risperidone and the active metabolite 9-hydroxyrisperidone were determined by an achiral LC-MS/MS method in 38 cases. The cause of death was classified as unrelated to risperidone in 30 cases, in which the sum of the concentration ...

  11. Femoral Prosthesis Infection by Rhodotorula mucilaginosa▿

    Science.gov (United States)

    Savini, Vincenzo; Sozio, Federica; Catavitello, Chiara; Talia, Marzia; Manna, Assunta; Febbo, Fabio; Balbinot, Andrea; Di Bonaventura, Giovanni; Piccolomini, Raffaele; Parruti, Giustino; D'Antonio, Domenico

    2008-01-01

    This case report is a case history of a femoral prosthesis infection caused by Rhodotorula mucilaginosa in a human immunodeficiency virus patient. Though the pathogenicity of this organism for bone tissue has been previously reported, this is the first reported case of an orthopedic prosthesis infection by this species of the genus Rhodotorula. PMID:18753353

  12. Aseptic necrosis of femoral head complicating thalassemia

    International Nuclear Information System (INIS)

    Orzincolo, C.; Castaldi, G.; Scutellary, P.N.; Bariani, L.; Pinca, A.

    1986-01-01

    Aseptic necrosis of the femoral head is described in 4 patients, selected from 280 patients with homozygous β-thalassemia (Cooley anemia). The incidence of the complication appears to be very high (14.5per mille) in thalassemia, compared to the general population. The possible mechanism are discussed. (orig.)

  13. Femoral rotational asymmetry is a common anatomical variant.

    Science.gov (United States)

    Newman, Christopher R; Walter, William L; Talbot, Simon

    2018-05-01

    The sulcus line (SL) is a three-dimensional landmark that corrects for individual variation in the coronal alignment of the trochlear groove in contrast to the traditional Whiteside's line (WL). Femoral rotational asymmetry (FRA) is an anatomical variation in which the posterior condyles and trochlear groove are not perpendicular to each other. This study aims to measure the SL and assess its reliability relative to WL, in addition to measuring and classifying the FRA. A retrospective analysis of a series of 191 CT scans of nonarthritic knees was performed. Measurements were taken of rotational landmarks in three-dimensional reconstructions. The variability and outlier rate of SL was less than WL (P  0.05), however it decreased the rate of change of the rotational alignment of the trochlear groove between the native knee and the prosthetic knee from 31% to 5% (P 5° in 56/191 (29%) of cases. The SL technique is more accurate than WL for determining the rotational alignment of the trochlear groove. Nonarthritic femora have a high rate of rotational asymmetry. Identifying and classifying FRA in individual cases allows the femoral component to be inserted in a position which gives the best possible match to both the native posterior condyles and trochlear groove. Clin. Anat. 31:551-559, 2018. © 2018 Wiley Periodicals, Inc. © 2018 Wiley Periodicals, Inc.

  14. Lateral femoral traction pin entry: risk to the femoral artery and other medial neurovascular structures

    Directory of Open Access Journals (Sweden)

    Appleton Paul

    2010-01-01

    Full Text Available Abstract Background Femoral skeletal traction assists in the reduction and transient stabilization of pelvic, acetabular, hip, and femoral fractures when splinting is ineffective. Traditional teaching has recommended a medial entry site for insertion of the traction pin in order to minimize injury to the femoral artery as it passes through Hunter's canal. The present anatomical study evaluates the risk to the femoral artery and other medial neurovascular structures using a lateral entry approach. Methods Six embalmed cadavers (twelve femurs were obtained for dissection. Steinman pins were drilled from lateral to medial at the level of the superior pole of the patella, at 2 cm, and at 4 cm proximal to this point. Medial superficial dissection was then performed to identify the saphenous nerve, the superior medial geniculate artery, the adductor hiatus, the tendinous insertion of the adductor magnus and the femoral artery. Measurements localizing these anatomic structures relative to the pins were obtained. Results The femoral artery was relatively safe and was no closer than 29.6 mm (mean from any of the three Steinman pins. The superior medial geniculate artery was the medial structure at most risk. Conclusions Lateral femoral traction pin entry is a safe procedure with minimal risk to the saphenous nerve and femoral artery. Of the structures examined, only the superior medial geniculate artery is at a risk of iatrogenic injury due to its position. The incidence of such injury in clinical practice and its clinical significance is not known. Lateral insertion facilitates traction pin placement since it minimizes the need to move the contralateral extremity out of the way of the drilling equipment or the need to elevate or externally rotate the injured extremity relative to the contralateral extremity.

  15. Preoperative virtual reduction reduces femoral malrotation in the treatment of bilateral femoral shaft fractures.

    Science.gov (United States)

    Omar, Mohamed; Suero, Eduardo M; Hawi, Nael; Decker, Sebastian; Krettek, Christian; Citak, Musa

    2015-10-01

    In bilateral femoral shaft fractures, significant malrotation (>15°) occurs in about 40 % of cases after intramedullary nailing. Most of the methods that provide rotational control during surgery are based on a comparison to the intact femur and, thus, not applicable for bilateral fractures. In this study, we evaluated if preoperative virtual reduction can help improving rotational alignment in patients with bilateral femoral shaft fractures. Seven patients with bilateral femoral shaft fractures were initially treated with external fixation of both femurs. After obtaining a CT scan of both legs, the fractures were reduced virtually using the software program VoXim®, and the amount and direction of rotational correction were calculated. Subsequently, the patients were treated by antegrade femoral nailing and rotation was corrected to the preoperatively calculated amount. After external fixation, the mean rotational difference between both legs was 15.0° ± 10.2°. Four out of seven patients had a significant malrotation over 15°. Following virtual reduction, the mean rotational difference between both legs was 2.1° ± 1.2°. After intramedullary nailing, no case of malrotation occurred and the mean rotational difference was 6.1° ± 2.8°. Preoperative virtual reduction allows determining the pretraumatic femoral antetorsion and provided useful information for the definitive treatment of bilateral femoral shaft fractures. We believe that this procedure is worth being implemented in the clinical workflow to avoid malrotation after intramedullary nailing.

  16. In Vivo Wear Performance of Cobalt-Chromium Versus Oxidized Zirconium Femoral Total Knee Replacements.

    Science.gov (United States)

    Gascoyne, Trevor C; Teeter, Matthew G; Guenther, Leah E; Burnell, Colin D; Bohm, Eric R; Naudie, Douglas R

    2016-01-01

    This study examines the damage and wear on the polyethylene (PE) inserts from 52 retrieved Genesis II total knee replacements to identify differences in tribological performance between matched pairs of cobalt-chromium (CoCr) and oxidized zirconium (OxZr) femoral components. Observer damage scoring and microcomputed tomography were used to quantify PE damage and wear, respectively. No significant differences were found between CoCr and OxZr groups in terms of PE insert damage, surface penetration, or wear. No severe damage such as cracking or delamination was noted on any of the 52 PE inserts. Observer damage scoring did not correlate with penetrative or volumetric PE wear. The more costly OxZr femoral component does not demonstrate clear tribological benefit over the standard CoCr component in the short term with this total knee replacement design. Copyright © 2016 Elsevier Inc. All rights reserved.

  17. Femoral neck fracture following groin irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Grigsby, Perry W; Roberts, Heidi L; Perez, Carlos A

    1995-04-30

    Purpose: The incidence and risk factors are evaluated for femoral neck fracture following groin irradiation for gynecologic malignancies. Methods and Materials: The radiation therapy records of 1313 patients with advanced and recurrent cancer of the vagina, vulva, cervix, and endometrium, treated at the Mallinckrodt Institute of Radiology from 1954 to 1992, were reviewed. Median follow-up was 12.7 years. From this group, 207 patients were identified who received irradiation to the pelvis and groins with anterposterior-posterior anterior (AP-PA), 18 MV photons. Data were reviewed regarding irradiation dose to the femoral neck and other presumed risk factors including age, primary site, stage, groin node status, menopausal status, estrogen use, cigarette use, alcohol consumption, and osteoporosis. Results: The per-patient incidence of femoral neck fracture was 4.8% (10 out of 207). Four patients developed bilateral fractures. However, the cumulative actuarial incidence of fracture was 11% at 5 years and 15% at 10 years. Cox multivariate analysis of age, weight, and irradiation dose showed that only irradiation dose may be important to developing fracture. Step-wise logistic regression of presumed prognostic factors revealed that only cigarette use and x-ray evidence of osteoporosis prior to irradiation treatment were predictive of fracture. Conclusion: Femoral head fracture is a common complication of groin irradiation for gynecologic malignancies. Fracture in our database appears to be related to irradiation dose, cigarette use, and x-ray evidence of osteoporosis. Special attention should be given in treatment planning (i.e., shielding of femoral head/neck and use of appropriate electron beam energies for a portion of treatment) to reduce the incidence of this complication.

  18. Femoral neck fracture following groin irradiation

    International Nuclear Information System (INIS)

    Grigsby, Perry W.; Roberts, Heidi L.; Perez, Carlos A.

    1995-01-01

    Purpose: The incidence and risk factors are evaluated for femoral neck fracture following groin irradiation for gynecologic malignancies. Methods and Materials: The radiation therapy records of 1313 patients with advanced and recurrent cancer of the vagina, vulva, cervix, and endometrium, treated at the Mallinckrodt Institute of Radiology from 1954 to 1992, were reviewed. Median follow-up was 12.7 years. From this group, 207 patients were identified who received irradiation to the pelvis and groins with anterposterior-posterior anterior (AP-PA), 18 MV photons. Data were reviewed regarding irradiation dose to the femoral neck and other presumed risk factors including age, primary site, stage, groin node status, menopausal status, estrogen use, cigarette use, alcohol consumption, and osteoporosis. Results: The per-patient incidence of femoral neck fracture was 4.8% (10 out of 207). Four patients developed bilateral fractures. However, the cumulative actuarial incidence of fracture was 11% at 5 years and 15% at 10 years. Cox multivariate analysis of age, weight, and irradiation dose showed that only irradiation dose may be important to developing fracture. Step-wise logistic regression of presumed prognostic factors revealed that only cigarette use and x-ray evidence of osteoporosis prior to irradiation treatment were predictive of fracture. Conclusion: Femoral head fracture is a common complication of groin irradiation for gynecologic malignancies. Fracture in our database appears to be related to irradiation dose, cigarette use, and x-ray evidence of osteoporosis. Special attention should be given in treatment planning (i.e., shielding of femoral head/neck and use of appropriate electron beam energies for a portion of treatment) to reduce the incidence of this complication

  19. [COMPUTER ASSISTED DESIGN AND ELECTRON BEAMMELTING RAPID PROTOTYPING METAL THREE-DIMENSIONAL PRINTING TECHNOLOGY FOR PREPARATION OF INDIVIDUALIZED FEMORAL PROSTHESIS].

    Science.gov (United States)

    Liu, Hongwei; Weng, Yiping; Zhang, Yunkun; Xu, Nanwei; Tong, Jing; Wang, Caimei

    2015-09-01

    To study the feasibility of preparation of the individualized femoral prosthesis through computer assisted design and electron beammelting rapid prototyping (EBM-RP) metal three-dimensional (3D) printing technology. One adult male left femur specimen was used for scanning with 64-slice spiral CT; tomographic image data were imported into Mimics15.0 software to reconstruct femoral 3D model, then the 3D model of individualized femoral prosthesis was designed through UG8.0 software. Finally the 3D model data were imported into EBM-RP metal 3D printer to print the individualized sleeve. According to the 3D model of individualized prosthesis, customized sleeve was successfully prepared through the EBM-RP metal 3D printing technology, assembled with the standard handle component of SR modular femoral prosthesis to make the individualized femoral prosthesis. Customized femoral prosthesis accurately matching with metaphyseal cavity can be designed through the thin slice CT scanning and computer assisted design technology. Titanium alloy personalized prosthesis with complex 3D shape, pore surface, and good matching with metaphyseal cavity can be manufactured by the technology of EBM-RP metal 3D printing, and the technology has convenient, rapid, and accurate advantages.

  20. Letters to the Editor: Tattooing gone wrong | Hampton | South African ...

    African Journals Online (AJOL)

    South African Journal of Surgery. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 55, No 1 (2017) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. Letters to the Editor: Tattooing gone wrong. M I Hampton ...

  1. Kamide reflects on JGR and the role of editor

    Science.gov (United States)

    Woods, Peter

    After serving the space physics community for more than 11 years, Y. Kamide of the Solar-Terrestrial Environment Laboratory at Nagoya University in Toyokawa, Japan, retired as editor of the Journal of Geophysical Research-Space Physics for the Asian/Pacific region. He had been a JGR editor since AGU first opened two editorial offices in Europe and the Asian/Pacific region in 1989. Even as the initial JGR editor in Asia, Kamide was not new to AGU editorial business. Before accepting the JGR position, Kamide served 3 years as the editor in Japan for Geophysical Research Letters.According to Kamide, over the last 5 years, the number of high-quality submissions to JGR in the Asian/Pacific region has increased dramatically, by a factor of 2.5. This increase came mostly from the younger generation of scientists, which bodes well for the future of JGR and space physics in general. Together with the substantial contributions to JGR from the European community, this achievement has been recognized by AGU as proof that JGR is truly an international journal of the highest editorial standards.

  2. Predatory Journals and Perished Articles; a Letter to Editor

    OpenAIRE

    Narimani, Mashallah; Dadkhah, Mehdi

    2017-01-01

    In recent years, academic publishing has been faced with many destructive phenomena. “Predatory publishers” (or journals) are one challenge for  cholarly publishing. This term was introduced to academic societies for the first time by Jeffrey Beall in 2010. This letter to editor is about predatory journals and perished articles in the field of emergency medicine.

  3. Publishing in Educational Psychology Journals: Comments from Editors

    Science.gov (United States)

    Nihalani, Priya K.; Mayrath, Michael C.

    2008-01-01

    The following paper emphasizes the importance of publishing and learning how to publish in educational psychology journals. We have compiled a set of recommendations based on advice from editors in the field and several other sources on how to publish. Additionally, this paper provides a step-by-step guide that graduate students and junior faculty…

  4. Pandangan Editor Surat Kabar Indonesia Dan Malaysia Terhadap Jurnalisme Multikultural

    OpenAIRE

    Junaidi, Junaidi

    2010-01-01

    Both Indonesia and Malaysia are characterized as multicultural society. In multiculturalsociety mass media plays a singnifant role in keeping peaceful condition. Journalistic activitiesgreatly influences the coverage related to multicultural issues. Multicultural journalism is ajournalistic activity which consider multicultural society's interest in keeping peaceful condition.This article aims to know Indonesian dan Malaysian newspaper editors' views towardmulticultural coverage. The study of...

  5. Most Business Editors Find Journalism Graduates Still Unprepared

    Science.gov (United States)

    Pardue, Mary Jane

    2014-01-01

    In 2002, a study was published in "Newspaper Research Journal" that explored the preparedness of graduating journalism students to cover business news. In 2012, a follow-up survey of business editors at the nation's daily newspapers was done to see whether progress had been made in the training of journalism students for the…

  6. Ethical Guideline to Authors,Editors,and Reviewers

    Institute of Scientific and Technical Information of China (English)

    Editorial office of CHM

    2016-01-01

    Drug products are specific goods with safety and effectiveness in medical health case.All of researchers(authors),reviewers,and editors must abide by medical ethical obligation,and also must deter to the ethical obligation for publication.These guidelines are offered as ethical

  7. Editor's note Recent instances of author misconduct in Pramana

    Indian Academy of Sciences (India)

    The exploding nature of the amount of available scientific information in- deed makes it a very demanding job for referees and editors to catch possible cases of plagiarism. While many cases are discovered during the refereeing process, some do slip through it. We are sorry that this has happened for. Pramana in a few ...

  8. Menthor Editor: An Ontology-Driven Conceptual Modeling Platform

    NARCIS (Netherlands)

    Moreira, João Luiz; Sales, Tiago Prince; Guerson, John; Braga, Bernardo F.B; Brasileiro, Freddy; Sobral, Vinicius

    2016-01-01

    The lack of well-founded constructs in ontology tools can lead to the construction of non-intended models. In this demonstration we present the Menthor Editor, an ontology-driven conceptual modelling platform which incorporates the theories of the Unified Foundational Ontology (UFO). We illustrate

  9. pedigreejs: a web-based graphical pedigree editor.

    Science.gov (United States)

    Carver, Tim; Cunningham, Alex P; Babb de Villiers, Chantal; Lee, Andrew; Hartley, Simon; Tischkowitz, Marc; Walter, Fiona M; Easton, Douglas F; Antoniou, Antonis C

    2018-03-15

    The collection, management and visualization of clinical pedigree (family history) data is a core activity in clinical genetics centres. However, clinical pedigree datasets can be difficult to manage, as they are time consuming to capture, and can be difficult to build, manipulate and visualize graphically. Several standalone graphical pedigree editors and drawing applications exist but there are no freely available lightweight graphical pedigree editors that can be easily configured and incorporated into web applications. We developed 'pedigreejs', an interactive graphical pedigree editor written in JavaScript, which uses standard pedigree nomenclature. Pedigreejs provides an easily configurable, extensible and lightweight pedigree editor. It makes use of an open-source Javascript library to define a hierarchical layout and to produce images in scalable vector graphics (SVG) format that can be viewed and edited in web browsers. The software is freely available under GPL licence (https://ccge-boadicea.github.io/pedigreejs/). tjc29@cam.ac.uk. Supplementary data are available at Bioinformatics online.

  10. Cover Letter Dear Editor, Please find enclosed a paper entitled ...

    African Journals Online (AJOL)

    Ajamein

    Dear Editor,. Please find enclosed a paper entitled ' Intrinsic Kinetics of Fischer- Tropsch Synthesis Over a. Promoted Iron Catalyst '. I am submitting to your journal to be considered for publication as a research paper in Bulletin of the Chemical Society of Ethiopia. The manuscript has not been previously published, is not ...

  11. From the editors: Finalizing a stage Editorial: Finalizando una etapa

    Directory of Open Access Journals (Sweden)

    Pep Simo

    2007-07-01

    Full Text Available This editorial briefly summarizes the work done by the editorial team of Intangible Capital in the last three years. We also inform the readers of Intagible Capital about the changes in the editorial position.En la presente editorial se sintetiza el trabajo de los últimos tres años y se presenta el relevo en el cargo de editor.

  12. Forward by Guest Editors | Potgieter | African Journal on Conflict ...

    African Journals Online (AJOL)

    African Journal on Conflict Resolution. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 15, No 3 (2015) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. Forward by Guest Editors. Cheryl Potgieter, Paulus ...

  13. CT study of avascular necrosis of femoral head in adults

    International Nuclear Information System (INIS)

    Liu Jihua; Du Yuqing; Xu Aide

    2000-01-01

    Objective: To study the early and new CT signs of avascular necrosis of femoral head in adults. Methods: The CT scans of 127 cases with this condition were analyzed. Results: There were 90 hip joints with femoral head normal in shape, including 67 femoral heads with only high-density sclerosis and 23 ones with high-density and low-density areas. In 111 hip joints, the femoral head was depressed and manifested purely high-density sclerosis in 25 and mixed-density areas in 86. Air-filled cysts appeared in 43 femoral heads. In follow-up cases, the changes in shape and density of femoral head followed some rules. Conclusion: Purely high-density sclerosis is an early sign and is of great diagnostic value combined with its special shape. Air in femoral heads is also a sign of the disease

  14. EDITORIAL: Outgoing Editor-in-Chief Outgoing Editor-in-Chief

    Science.gov (United States)

    Hauptmann, Peter

    2012-01-01

    I started in 2002 as Editor-in-Chief of a well established journal—MST (Measurement Science and Technology). It was a time when modern means of communication offered new opportunities for the scientific community—for all scientists and engineers whether at universities, in industry or at other institutions—to access better quality information in a shorter time. This development helped us to be more efficient in our daily scientific work and to anticipate new trends faster than before. A flood of information was created by different search engines. A few online journals or journals published in emerging countries with a similar profile to MST appeared on the market. MST had to provide new answers in response to these developments. In 2002 I postulated two requirements to the journal. Firstly, the publisher has to be up to date. My impression over the years has been that IOPP is excellently organized. That has made it easier for the board members and all our reviewers to concentrate on the scientific aspects of our input to the journal. During all my visits to Bristol or my contacts with the IOPP staff I always met very professional and enthusiastic staff members. They have not only supported and encouraged the ideas and initiatives of the Editorial Board members, but they have also worked hard on establishing one of the most effective journal operations in the field of measurement science and technology. Many authors are well aware of this. Thus I am able to declare that the first requirement for a successful journal has been met. Secondly, the scientific level has to be high and the journal should attract readers from all over the world. This task was the responsibility of the Editorial Board members and of myself. Our strategy was on the one hand to ensure continuity in MST but on the other hand to be open to new trends and developments. Examples of these new aspects of the journal are fields like micro- and nanometrology, measurement techniques for

  15. Magazine Editors and the Writing Process: An Analysis of How Editors Work with Staff and Free-Lance Writers.

    Science.gov (United States)

    Schierhorn, Ann B.; Endres, Kathleen L.

    Editors of business and consumer magazines chosen by a random sample were asked in a mail survey what method they used in working with staff writers and free-lance writers. They were asked how they work with writers in the five stages of the writing process--idea, reporting, organizing, writing and rewriting. The first mailing to consumer…

  16. TME (Task Mapping Editor): tool for executing distributed parallel computing. TME user's manual

    International Nuclear Information System (INIS)

    Takemiya, Hiroshi; Yamagishi, Nobuhiro; Imamura, Toshiyuki

    2000-03-01

    At the Center for Promotion of Computational Science and Engineering, a software environment PPExe has been developed to support scientific computing on a parallel computer cluster (distributed parallel scientific computing). TME (Task Mapping Editor) is one of components of the PPExe and provides a visual programming environment for distributed parallel scientific computing. Users can specify data dependence among tasks (programs) visually as a data flow diagram and map these tasks onto computers interactively through GUI of TME. The specified tasks are processed by other components of PPExe such as Meta-scheduler, RIM (Resource Information Monitor), and EMS (Execution Management System) according to the execution order of these tasks determined by TME. In this report, we describe the usage of TME. (author)

  17. Computer tomographic determination of femoral anteversion

    International Nuclear Information System (INIS)

    Jend, H.H.

    1986-01-01

    Thirty-two macerated femora were examined by CT in order to determine the degree of anteversion and to relate this to the position of the femur and to the various reference lines quoted in the literature. The accuracy of CT is the same as that of the Rippstein method, provided the following conditions are met: 1. Position of the femur with its long axis perpendicular to the image plane. 2. Demonstration of the maximal configuration of the femoral condyles to enable one to construct a tangent to the dorsal aspect of the condyle. 3. Demonstration of the head and neck by a plane which divides the neck into approximately equal portions and sections the femoral head. These conditions are more easily met, even in immobile patients, than the requirements for the Rippstein method. (orig.) [de

  18. Intracorporeal knotting of a femoral nerve catheter

    Directory of Open Access Journals (Sweden)

    Ghanem, Mohamed

    2015-01-01

    Full Text Available Peripheral nerve catheters are effective and well-established tools to provide postoperative analgesia to patients undergoing orthopedic surgery. The performance of these techniques is usually considered safe. However, placement of nerve catheters may be associated with a considerable number of side effects and major complications have repeatedly been published. In this work, we report on a patient who underwent total knee replacement with spinal anesthesia and preoperative insertion of femoral and sciatic nerve catheters for postoperative analgesia. During insertion of the femoral catheter, significant resistance was encountered upon retracting the catheter. This occurred due to knotting of the catheter. The catheter had to be removed by operative intervention which has to be considered a major complication. The postoperative course was uneventful. The principles for removal of entrapped peripheral catheters are not well established, may differ from those for neuroaxial catheters, and range from cautious manipulation up to surgical intervention.

  19. Femoral head fracture without hip dislocation

    Directory of Open Access Journals (Sweden)

    Aggarwal Aditya K

    2013-10-01

    Full Text Available 【Abstract】Femoral head fractures without dislocation or subluxation are extremely rare injuries. We report a neglected case of isolated comminuted fracture of femoral head without hip dislocation or subluxation of one year duration in a 36-year-old patient who sustained a high en- ergy trauma due to road traffic accident. He presented with painful right hip and inability to bear full weight on right lower limb with Harris hip score of 39. He received cementless total hip replacement. At latest follow-up of 2.3 years, functional outcome was excellent with Harris hip score of 95. Such isolated injuries have been described only once in the literature and have not been classified till now. The purpose of this report is to highlight the extreme rarity, possible mechanism involved and a novel classification system to classify such injuries. Key words: Femur head; Hip dislocation; Classification; Arthroplasty, replacement, hip

  20. Spontaneous stress fractures of the femoral neck

    International Nuclear Information System (INIS)

    Dorne, H.L.; Lander, P.H.

    1985-01-01

    The diagnosis of spontaneous stress fractures of the femoral neck, a form of insufficiency stress fracture, can be missed easily. Patients present with unremitting hip pain without a history of significant trauma or unusual increase in daily activity. The initial radiographic features include osteoporosis, minor alterations of trabecular alignment, minimal extracortical or endosteal reaction, and lucent fracture lines. Initial scintigraphic examinations performed in three of four patients showed focal increased radionuclide uptake in two and no focal abnormality in one. Emphasis is placed on the paucity of early findings. Evaluation of patients with persistent hip pain requires a high degree of clinical suspicion and close follow-up; the sequelae of undetected spontaneous fractures are subcapital fracture with displacement, angular deformity, and a vascular necrosis of the femoral head

  1. Changes in Editorial board Rhinology, Prof. Valerie Lund demits office as Editor in Chief of Rhinology

    NARCIS (Netherlands)

    Fokkens, W. J.

    2014-01-01

    At the Editorial Board Meeting of Rhinology Valerie Lund indicated that she has decided to emit office as Editor in Chief of Rhinology. She became a member of the editorial board in 1993, a co-editor with Prof. Bert Huizing in 1999 and Editor in Chief in 2004. She leaves with our grateful thanks for

  2. PREFACE: Introductory remarks from the Editors Introductory remarks from the Editors

    Science.gov (United States)

    Knobloch, E.; Meseguer, A.; Marques, F.

    2012-06-01

    The local organizers of the 4th BIFD (Bifurcations and Instabilities in Fluid Dynamics) Symposium held in Barcelona on 18-21 July 2011 would like to thank the editors of Fluid Dynamics Research for offering us the opportunity of publishing a peer-reviewed special issue of the journal with a selection of the contributions presented at this conference. We thank both the authors and the referees for working with us on the rather tight schedule necessary to release the issue within one year of the date of the conference. We also thank the invited speakers, B Eckhardt, L Tuckerman, and J M Vega, for contributing keynote papers to this special issue. The series of BIFD symposia started as a small workshop in Madeira, Portugal, in 2004 with no more than 20 participants. This number increased rapidly during the second and third symposia held in 2006 (Denmark) and 2009 (United Kingdom), with 40 and 110 participants, respectively. The 4th BIFD symposium has consolidated this event as one of the leading conferences in hydrodynamic stability, with nearly 200 participants from around the world. The main goal of this conference is to bring together scientists and engineers from different disciplines directly or indirectly related to fluid dynamics, bifurcation theory and hydrodynamic stability theory. The conference covered many research areas within the aforementioned fields, ranging from thermal, shear and centrifugal flows to biofluids, films, drops, viscoelastic flows and magnetohydrodynamics. The structure of the conference, with invited plenary talks and focused sessions, helped the participants find their home in the conference and share state-of-the-art knowledge within the field of hydrodynamic instabilities. The financial support from MICINN (Spanish Ministry of Science and Innovation, Grant no FIS2009-08065-E) and UPC (Universitat Politècnica de Catalunya) is greatly appreciated. The local organizers would also like to thank ETSAB (Barcelona School of Architecture

  3. Bone apatite composition of necrotic trabecular bone in the femoral head of immature piglets.

    Science.gov (United States)

    Aruwajoye, Olumide O; Kim, Harry K W; Aswath, Pranesh B

    2015-04-01

    Ischemic osteonecrosis of the femoral head (IOFH) can lead to excessive resorption of the trabecular bone and collapse of the femoral head as a structure. A well-known mineral component to trabecular bone is hydroxyapatite, which can be present in many forms due to ionic substitution, thus altering chemical composition. Unfortunately, very little is known about the chemical changes to bone apatite following IOFH. We hypothesized that the apatite composition changes in necrotic bone possibly contribute to increased osteoclast resorption and structural collapse of the femoral head. The purpose of this study was to assess the macroscopic and local phosphate composition of actively resorbed necrotic trabecular bone to isolate differences between areas of increased osteoclast resorption and normal bone formation. A piglet model of IOFH was used. Scanning electron microscopy (SEM), histology, X-ray absorbance near edge structure (XANES), and Raman spectroscopy were performed on femoral heads to characterize normal and necrotic trabecular bone. Backscattered SEM, micro-computed tomography and histology showed deformity and active resorption of necrotic bone compared to normal. XANES and Raman spectroscopy obtained from actively resorbed necrotic bone and normal bone showed increased carbonate-to-phosphate content in the necrotic bone. The changes in the apatite composition due to carbonate substitution may play a role in the increased resorption of necrotic bone due to its increase in solubility. Indeed, a better understanding of the apatite composition of necrotic bone could shed light on osteoclast activity and potentially improve therapeutic treatments that target excessive resorption of bone.

  4. Ipsilateral femoral neck and trochanter fracture

    Directory of Open Access Journals (Sweden)

    Devdatta S Neogi

    2011-01-01

    Full Text Available Ipsilateral fractures in the neck and trochanteric region of the femur are very rare and seen in elderly osteoporotic patients. We present a case of a young man who presented with ipsilateral fracture of the femoral neck and a reverse oblique fracture in the trochanteric region following a motor vehicle accident. A possible mechanism, diagnostic challenge, and awareness required for identifying this injury are discussed.

  5. Proximal focal femoral deficiency: A case report

    Directory of Open Access Journals (Sweden)

    Shashank Sharma

    2015-01-01

    Full Text Available Proximal focal femoral deficiency (PFFD is a rare congenital anomaly resulting in limb shortening and disability in young. The exact cause of the disease is not known and it may present as varying grades of affection involving the proximal femur and the acetabulum. Recognition of this rare abnormality on radiographs can help manage these cases better since early institution of therapy may help in achieving adequate growth of the femur.

  6. Radiofrequency ablation of two femoral head chondroblastomas

    Energy Technology Data Exchange (ETDEWEB)

    Petsas, Theodore [Department of Radiology, University of Patras (Greece); Megas, Panagiotis [Department of Orthopaedic Surgery, University of Patras (Greece)]. E-mail: panmegas@med.upatras.gr; Papathanassiou, Zafiria [Department of Radiology, University of Patras (Greece)

    2007-07-15

    Chondroblastoma is a rare benign cartilaginous bone tumor. Surgical resection is the treatment of choice for pain relief and prevention of further growth. Open surgical techniques are associated with complications, particularly when the tumors are located in deep anatomical sites. The authors performed RF ablation in two cases of subarticular femoral head chondroblastomas and emphasize its positive impact. The clinical course, the radiological findings and the post treatment results are discussed.

  7. [Avascular necrosis of the femoral head].

    Science.gov (United States)

    Porubský, Peter; Trč, Tomáš; Havlas, Vojtěch; Smetana, Pavel

    Avascular necrosis of the femoral head in adults is not common, but not too rare diseases. In orthopedic practice, it is one of the diseases that are causing implantation of hip replacement at a relatively early age. In the early detection and initiation of therapy can delay the implantation of prosthesis for several years, which is certainly more convenient for the patient and beneficial. This article is intended to acquaint the reader with the basic diagnostic procedures and therapy.

  8. MYCOTIC FEMORAL PSEUDOANEURYSMS FROM INTRAVENOUS DRUG ABUSE

    Directory of Open Access Journals (Sweden)

    Vojko Flis

    2004-04-01

    Full Text Available Background. Parenteral drug abuse is the most common cause of infected femoral artery pseudoaneurysms (IFAP. This complication of intravenous drug abuse is not only limb threatening but can also be life threatening. The management of the IFAP is difficult and controversial. Generally speaking, ligation and excision of the pseudoaneurysm without revascularization is accepted procedure in majority of the patients. However it is not regarded as an appropriate procedure for cases where the high probability of amputation is expected from acute interruption of the femoral artery flow.Patients, methods and results. We present three cases of young (average 20 years, range 18–24 patients with IFAP, in which a primary reconstruction was performed due to absence of doppler signal over pedal arteries after ligation of common femoral artery. In two of them complications in form of haemorrhage and repeated infection developed in late postoperative period. The first one, had an excision and ligation while the second one had a reconstruction made by means of a silver impregnated dacron prosthesis. None of the patients required an amputation.Conclusions. Overall prognosis and prognosis of the reconstruction in parenteral drug abuse patients is uncertain because there is a high incidence of postoperative drug injection despite aggressive drug rehabilitation.

  9. Radionuclide patterns of femoral head disease

    Energy Technology Data Exchange (ETDEWEB)

    Webber, M M; Wagner, J; Cragin, M D [California Univ., Los Angeles (USA). Dept. of Radiological Sciences

    1977-12-01

    The pattern of uptake of bone marrow specific radio-sup(99m)Tc sulfur colloid and the pattern of uptake of bone mineral specific radio-sup(99m)Tc pryophosphate may be valuable in assessing bone vascularity in diseases suspected of causing impaired blood supply, or indicate the presence of reactive bone formation. The low energy of the technetium label has been shown to be superior to /sup 18/F and /sup 85/Sr, and leads to greater imaging detail on the scans. Femoral head scanning with mineral and/or marrow specific radionuclides offers the clinician a method of evaluating the status of the femoral head and possibly an early diagnosis of avascular necrosis before roentgenographic changes occur. This study, which reports on a 5-year experience using radionuclide scanning to assess femoral head vascularity, begins with baseline or normal studies followed by variations of the normal pattern. Typical scan patterns of hip pathology described above are also presented.

  10. Editor for Remote Database used in ATLAS Trigger/DAQ

    CERN Document Server

    Meessen, C; Valenta, J

    2006-01-01

    The poster gives brief summary of the ATLAS T/DAQ system, then it introduces the RDB database and describes the RDB Editor application, including its internal structure, GUI features, etc. The RDB Editor is an easy-to-use Java application which allows simple navigation between huge number of objects stored in the RDB. It supports bookmarks, histories, etc. in the way usual in the web browsers. Moreover, it is possible to enhance the application by specialized (graphical) viewers for objects of particular class which will allow the user to see, for example, details that are hard to spot in textual view. As an example of such a plug-in, viewer for EFD_Configuration class was developed.

  11. Developing Media Module Proposed to Editor in Editorial Division

    Science.gov (United States)

    Kristanto, A.; Mustaji; Mariono, A.; Sulistiowati; Nuryati, D. W.

    2018-01-01

    In this era of technology in Indonesia, various publishers introduce themselves and participate in advancing the quality of education through the publication of various books as the learning sources. One of the publishers is PT. JP Press. In compiling the learning sources, we found some problems that are left unresolved by the editor. The purpose of this research is to overcome the problems that exist in PT. JP Press by developing media module. This development research uses the ADDIE model. The types of data used in this study are qualitative and quantitative data obtained based on the results of structured interviews with material experts and media experts, as well as the editorial response questionnaire provided for individual try-out and small group try-out. Therefore, it can be concluded that the medium of elementary school supplementary module proposed to the editors of PT. JP Press is valuable to be used in the teaching and learning activities.

  12. Journalism Education 2016 Vol 5(2): Guest Editor

    OpenAIRE

    Fowler-Watt, Karen

    2016-01-01

    “It’s the story that matters! Teaching journalism’s storytellers” Special Edition of Journalism Education Guest Editor: Karen Fowler-Watt, Bournemouth University, UK. Storytelling is the journalist’s craft skill. Shaped by the tenets of objectivity and accuracy, the news narrative informs the debate and brings us the human stories. If journalism is a craft, then the story is the journalist’s work of art. In a rapidly changing landscape of technological revolution, shifting business models and...

  13. Handing Over the ATLAS eNews Scientific Editor Task

    CERN Multimedia

    P. Jenni

    2006-01-01

    The ATLAS eNews are now established since many years as a lively source of stories about the construction of our detector as well as the preparations for the physics running to come. The human touch in telling these stories is important, and to stimulate and motivate the article writers to include also this side of our work is one of the tasks for the Scientific Editor of the eNews. Joleen ('Jo') Pater has been the enthusiastic and competent 'skipper' for the last two years keeping the eNews on track. The whole Collaboration owes her a great and very hearty thank-you! Pauline Gagnon has kindly accepted to take up the challenge for the next couple of years. She will have the privilege to be the editor when we will see the first collisions with ATLAS! I wish her all the best for this new task. Outgoing and incoming editors of the ATLAS E-news: Jo Pater (left) and Pauline Gagnon (right)

  14. Statement on Publication Ethics for Editors and Publishers

    Science.gov (United States)

    2016-01-01

    The digitization and related developments in journal editing and publishing necessitate increasing the awareness of all stakeholders of science communication in the emerging global problems and possible solutions. Journal editors and publishers are frequently encountered with the fast-growing problems of authorship, conflicts of interest, peer review, research misconduct, unethical citations, and inappropriate journal impact metrics. While the number of erroneous and unethical research papers and wasteful, or 'predatory', journals is increasing exponentially, responsible editors are urged to 'clean' the literature by correcting or retracting related articles. Indexers are advised to implement measures for accepting truly influential and ethical journals and delisting sources with predatory publishing practices. Updating knowledge and skills of authors, editors and publishers, developing and endorsing recommendations of global editorial associations, and (re)drafting journal instructions can be viewed as potential tools for improving ethics of academic journals. The aim of this Statement is to increase awareness of all stakeholders of science communication of the emerging ethical issues in journal editing and publishing and initiate a campaign of upgrading and enforcing related journal instructions. PMID:27510376

  15. Authors, editors, and the signs, symptoms and causes of plagiarism

    Directory of Open Access Journals (Sweden)

    Karen Shashok

    2011-01-01

    Full Text Available Plagiarism and inadequate citing appear to have reached epidemic proportions in research publication. This article discusses how plagiarism is defined and suggests some possible causes for the increase in the plagiarism disease. Most editors do not have much tolerance for text re-use with inadequate citation regardless of reasons why words are copied from other sources without correct attribution. However, there is now some awareness that re-use of words in research articles to improve the writing or "the English" (which has become a common practice should be distinguished from intentional deceit for the purpose of stealing other authors′ ideas (which appears to remain a very rare practice. Although it has become almost as easy for editors to detect duplicate text as it is for authors to re-use text from other sources, editors often fail to consider the reasons why researchers resort to this strategy, and tend to consider any text duplication as a symptom of serious misconduct. As a result, some authors may be stigmatized unfairly by being labeled as plagiarists. The article concludes with practical advice for researchers on how to improve their writing and citing skills and thus avoid accusations of plagiarism.

  16. Authors, editors, and the signs, symptoms and causes of plagiarism.

    Science.gov (United States)

    Shashok, Karen

    2011-07-01

    Plagiarism and inadequate citing appear to have reached epidemic proportions in research publication. This article discusses how plagiarism is defined and suggests some possible causes for the increase in the plagiarism disease. Most editors do not have much tolerance for text re-use with inadequate citation regardless of reasons why words are copied from other sources without correct attribution. However, there is now some awareness that re-use of words in research articles to improve the writing or "the English" (which has become a common practice) should be distinguished from intentional deceit for the purpose of stealing other authors' ideas (which appears to remain a very rare practice). Although it has become almost as easy for editors to detect duplicate text as it is for authors to re-use text from other sources, editors often fail to consider the reasons why researchers resort to this strategy, and tend to consider any text duplication as a symptom of serious misconduct. As a result, some authors may be stigmatized unfairly by being labeled as plagiarists. The article concludes with practical advice for researchers on how to improve their writing and citing skills and thus avoid accusations of plagiarism.

  17. Authors, editors, and the signs, symptoms and causes of plagiarism

    Science.gov (United States)

    Shashok, Karen

    2011-01-01

    Plagiarism and inadequate citing appear to have reached epidemic proportions in research publication. This article discusses how plagiarism is defined and suggests some possible causes for the increase in the plagiarism disease. Most editors do not have much tolerance for text re-use with inadequate citation regardless of reasons why words are copied from other sources without correct attribution. However, there is now some awareness that re-use of words in research articles to improve the writing or “the English” (which has become a common practice) should be distinguished from intentional deceit for the purpose of stealing other authors’ ideas (which appears to remain a very rare practice). Although it has become almost as easy for editors to detect duplicate text as it is for authors to re-use text from other sources, editors often fail to consider the reasons why researchers resort to this strategy, and tend to consider any text duplication as a symptom of serious misconduct. As a result, some authors may be stigmatized unfairly by being labeled as plagiarists. The article concludes with practical advice for researchers on how to improve their writing and citing skills and thus avoid accusations of plagiarism. PMID:21957412

  18. CMS Configuration Editor: GUI based application for user analysis job

    International Nuclear Information System (INIS)

    Cosa, A de

    2011-01-01

    We present the user interface and the software architecture of the Configuration Editor for the CMS experiment. The analysis workflow is organized in a modular way integrated within the CMS framework that organizes in a flexible way user analysis code. The Python scripting language is adopted to define the job configuration that drives the analysis workflow. It could be a challenging task for users, especially for newcomers, to develop analysis jobs managing the configuration of many required modules. For this reason a graphical tool has been conceived in order to edit and inspect configuration files. A set of common analysis tools defined in the CMS Physics Analysis Toolkit (PAT) can be steered and configured using the Config Editor. A user-defined analysis workflow can be produced starting from a standard configuration file, applying and configuring PAT tools according to the specific user requirements. CMS users can adopt this tool, the Config Editor, to create their analysis visualizing in real time which are the effects of their actions. They can visualize the structure of their configuration, look at the modules included in the workflow, inspect the dependences existing among the modules and check the data flow. They can visualize at which values parameters are set and change them according to what is required by their analysis task. The integration of common tools in the GUI needed to adopt an object-oriented structure in the Python definition of the PAT tools and the definition of a layer of abstraction from which all PAT tools inherit.

  19. Incidence of Avascular Necrosis of the Femoral Head After Intramedullary Nailing of Femoral Shaft Fractures

    Science.gov (United States)

    Kim, Ji Wan; Oh, Jong-Keon; Byun, Young-Soo; Shon, Oog-Jin; Park, Jai Hyung; Oh, Hyoung Keun; Shon, Hyun Chul; Park, Ki Chul; Kim, Jung Jae; Lim, Seung-Jae

    2016-01-01

    Abstract The goal of this study was to determine the incidence of avascular necrosis of the femoral head (AVNFH) after intramedullary nailing of femoral shaft fractures and to identify risk factors for developing AVNFH. We retrospectively reviewed all patients with femoral shaft fractures treated with antegrade intramedullary nailing at 10 institutions. Among the 703 patients enrolled, 161 patients were excluded leaving 542 patients in the study. Average age was 42.1 years with average follow-up of 26.3 months. Patient characteristics and fracture patterns as well as entry point of femoral nails were identified and the incidence of AVNFH was investigated. Patients were divided into 2 groups according to open versus closed physis, open versus closed fractures, and age (<20 versus ≥20 years). Overall incidence of AVNFH was 0.2% (1 of 542): the patient was 15-year-old boy. Of 25 patients with open physis, the incidence of AVNFH was 4%, whereas none of 517 patients with closed physis developed AVNFH (P < 0.001). The incidence of AVNFH in patients aged < 20 versus ≥20 years was 1.1% (1 of 93) and 0.0% (0 of 449), respectively (P = 0.172), which meant that the incidence of AVNFH was 0% in adult with femur shaft fracture. Of 61 patients with open fractures, the incidence of AVNFH was 0%. The number of cases with entry point at the trochanteric fossa or tip of the greater trochanter (GT) was 324 and 218, respectively, and the incidence of AVNFH was 0.3% and 0.0%, respectively (P = 0.412). In patients aged ≥20 years with isolated femoral shaft fracture, there was no case of AVNFH following antegrade intramedullary nailing regardless of the entry point. Therefore, our findings suggest that the risk of AVNFH following antegrade femoral nailing is extremely low in adult patients. PMID:26844518

  20. Ipsilateral femoral neck and shaft fractures: An overlooked association

    International Nuclear Information System (INIS)

    Daffner, R.H.; Riemer, B.L.; Butterfield, S.L.

    1991-01-01

    A total of 304 patients with injuries to the femoral shaft and ipsilateral hip presented between 1984 and 1990. Some 253 of them suffered fractures of the femoral shaft and dislocated hips or fractures of the acetabulum, and 51 of these sustained fractures of the femoral shaft and neck or trochanteric region. All of the trochanteric injuries were demonstrated on the initial radiographs. However, in 11 of the patients with combined femoral shaft and neck fractures, the diagnosis was delayed by as much as 4 weeks. This delay related to the fact that these fractures tended not to separate in the initial evaluation period and that there was external rotation of the proximal femoral fragment due to the femoral shaft fracture. (orig./GDG)

  1. Ipsilateral femoral neck and shaft fractures: An overlooked association

    Energy Technology Data Exchange (ETDEWEB)

    Daffner, R.H. (Dept. of Diagnostic Radiology, Allegheny General Hospital, Pittsburgh, PA (USA) Medical Coll. of Pennsylvania, Pittsburgh, PA (USA)); Riemer, B.L.; Butterfield, S.L. (Dept. of Orthopedic Surgery, Allegheny General Hospital, Pittsburgh, PA (USA) Medical Coll. of Pennsylvania, Pittsburgh, PA (USA))

    1991-05-01

    A total of 304 patients with injuries to the femoral shaft and ipsilateral hip presented between 1984 and 1990. Some 253 of them suffered fractures of the femoral shaft and dislocated hips or fractures of the acetabulum, and 51 of these sustained fractures of the femoral shaft and neck or trochanteric region. All of the trochanteric injuries were demonstrated on the initial radiographs. However, in 11 of the patients with combined femoral shaft and neck fractures, the diagnosis was delayed by as much as 4 weeks. This delay related to the fact that these fractures tended not to separate in the initial evaluation period and that there was external rotation of the proximal femoral fragment due to the femoral shaft fracture. (orig./GDG).

  2. MR evaluation of femoral neck version and tibial torsion

    Energy Technology Data Exchange (ETDEWEB)

    Koenig, James Karl; Dwek, Jerry R. [University of California, San Diego, Children' s Hospital and Health Center, Department of Radiology, San Diego, CA (United States); Pring, Maya E. [Rady Children' s Hospital, Department of Pediatric Orthopedic Surgery, San Diego, CA (United States)

    2012-01-15

    Abnormalities of femoral neck version have been associated with a number of hip abnormalities in children, including slipped capital femoral epiphysis, proximal femoral focal deficiency, coxa vara, a deep acetabulum and, rarely, developmental dysplasia of the hip. Orthopedic surgeons also are interested in quantifying the femoral neck anteversion or retroversion in children especially to plan derotational osteotomies. Historically, the angle of femoral version and tibial torsion has been measured with the use of radiography and later by CT. Both methods carry with them the risks associated with ionizing radiation. Techniques that utilize MR are used less often because of the associated lengthy imaging times. This article describes a technique using MRI to determine femoral neck version and tibial torsion with total scan times of approximately 10 min. (orig.)

  3. Computerized tomography in evaluation of decreased acetabular and femoral anteversion

    International Nuclear Information System (INIS)

    Toennis, D.; Skamel, H.J.

    2003-01-01

    Computerized tomography has received a new importance. It has been shown that decreased anteversion of femur and acetabulum, when both have decreased angles, are causing pain and osteoarthritis of the hip joint. Operative treatment should be performed before osteoarthritis develops. Exact measurements therefore are necessary. The investigation should be performed in prone position to have the pelvis lying in a defined and normal position. Femoral torsion is measured between the transverse axis of the knee and the femoral neck. The transverse axis for measurement of the femoral anteversion is defined by a rectangular line to the sagittal plane. For evaluation of the femoral anteversion in total the angle of the condyles has to be added to the femoral neck angle when the knee is found in internal rotation. Acetabular anteversion should be measured at the level where the femoral head is still in full contact and congruence with the anterior margin of the acetabulum. (orig.) [de

  4. Compartment Syndrome following Open Femoral Fracture with an Isolated Femoral Vein Injury Treated with Acute Repair

    Directory of Open Access Journals (Sweden)

    David Walmsley

    2014-01-01

    Full Text Available Acute compartment syndrome is a surgical emergency and its diagnosis is more difficult in obtunded or insensate patients. We present the case of a 34-year-old woman who sustained a Gustilo-Anderson grade III open midshaft femur fracture with an isolated femoral vein injury treated with direct repair. She developed lower leg compartment syndrome at 48 hours postoperatively, necessitating fasciotomies. She was subsequently found to have a DVT in her femoral vein at the level of the repair and was started on therapeutic anticoagulation. This case highlights the importance of recognition of isolated venous injuries in a trauma setting as a risk factor for developing compartment syndrome.

  5. Long Term Survivorship of a Severely Notched Femoral Stem after Replacing the Fractured Ceramic head with a Cobalt-Chromium Head.

    Science.gov (United States)

    Panagopoulos, Andreas; Tatani, Irini; Megas, Panagiotis

    2016-01-01

    Although ceramic head fracture occurs infrequently today, in the event of a fracture, the resulting revision surgery can prove very challenging, since the ceramic particles lodge into the surrounding soft tissue and can cause rapid implant failure. A case of long term survivorship of a severed notched femoral stem after replacing the fractured femoral head with a cobalt-chromium one is reported in a 40-year old woman with hip dysplasia who underwent an uncomplicated total hip arthroplasty. The incident of ceramic femoral head fracture occurred 14 months postoperatively without reporting any significant trauma. Intraoperative findings at revision were a multifragmented femoral head and a damaged polyethylene insert along with diffuse metallosis and excessive wear of the cone of the stem. Both the stem and the acetabular component were stable. After removal of ceramic fragments, metallotic tissue excision and careful lavage of the joint, the inlay was replaced by a similar one and a cobalt-chromium femoral head was placed to the existing notched taper of the firmly incorporated stem. At the 13 th year follow up examination, the patient had no pain, used no walking aids, and had normal activity with no signs of wearing or loosening in the plain x-rays. Despite current recommendations of using ceramic femoral heads in cases of fracture or to revise the severely damaged stems we were able to provide a long term survivorship up to 13 years postoperatively of a cobalt-chromium femoral head applied to a severe damaged stem.

  6. Delayed appearance of hypaesthesia and paralysis after femoral nerve block

    OpenAIRE

    Stefan Landgraeber; Thomas Albrecht; Ulrich Reischuck; Marius von Knoch

    2012-01-01

    We report on a female patient who underwent an arthroscopy of the right knee and was given a continuous femoral nerve block catheter. The postoperative course was initially unremarkable, but when postoperative mobilisation was commenced, 18 hours after removal of the catheter, the patient noticed paralysis and hypaesthesia. Examination confirmed the diagnosis of femoral nerve dysfunction. Colour duplex sonography of the femoral artery and computed tomography of the lumbar spine and pelvis yie...

  7. PDB Editor: a user-friendly Java-based Protein Data Bank file editor with a GUI.

    Science.gov (United States)

    Lee, Jonas; Kim, Sung Hou

    2009-04-01

    The Protein Data Bank file format is the format most widely used by protein crystallographers and biologists to disseminate and manipulate protein structures. Despite this, there are few user-friendly software packages available to efficiently edit and extract raw information from PDB files. This limitation often leads to many protein crystallographers wasting significant time manually editing PDB files. PDB Editor, written in Java Swing GUI, allows the user to selectively search, select, extract and edit information in parallel. Furthermore, the program is a stand-alone application written in Java which frees users from the hassles associated with platform/operating system-dependent installation and usage. PDB Editor can be downloaded from http://sourceforge.net/projects/pdbeditorjl/.

  8. The XML Metadata Editor of GFZ Data Services

    Science.gov (United States)

    Ulbricht, Damian; Elger, Kirsten; Tesei, Telemaco; Trippanera, Daniele

    2017-04-01

    Following the FAIR data principles, research data should be Findable, Accessible, Interoperable and Reuseable. Publishing data under these principles requires to assign persistent identifiers to the data and to generate rich machine-actionable metadata. To increase the interoperability, metadata should include shared vocabularies and crosslink the newly published (meta)data and related material. However, structured metadata formats tend to be complex and are not intended to be generated by individual scientists. Software solutions are needed that support scientists in providing metadata describing their data. To facilitate data publication activities of 'GFZ Data Services', we programmed an XML metadata editor that assists scientists to create metadata in different schemata popular in the earth sciences (ISO19115, DIF, DataCite), while being at the same time usable by and understandable for scientists. Emphasis is placed on removing barriers, in particular the editor is publicly available on the internet without registration [1] and the scientists are not requested to provide information that may be generated automatically (e.g. the URL of a specific licence or the contact information of the metadata distributor). Metadata are stored in browser cookies and a copy can be saved to the local hard disk. To improve usability, form fields are translated into the scientific language, e.g. 'creators' of the DataCite schema are called 'authors'. To assist filling in the form, we make use of drop down menus for small vocabulary lists and offer a search facility for large thesauri. Explanations to form fields and definitions of vocabulary terms are provided in pop-up windows and a full documentation is available for download via the help menu. In addition, multiple geospatial references can be entered via an interactive mapping tool, which helps to minimize problems with different conventions to provide latitudes and longitudes. Currently, we are extending the metadata editor

  9. Treatment of periprosthetic femoral fractures of the knee.

    Science.gov (United States)

    Ehlinger, Matthieu; Adam, Philippe; Abane, Lamine; Rahme, Michel; Moor, Beat Kaspar; Arlettaz, Yvan; Bonnomet, François

    2011-09-01

    We report a continuous series of periprosthetic femoral fractures after knee arthroplasty treated with a locking plate. We hypothesize that minimally invasive surgery and immediate weight-bearing improve functional recovery. From June 2002 to December 2008, 15 patients with 16 fractures were treated. Median age was 81 years. The autonomy level according to the mobility score of Parker and Palmer showed a median of 5 (0-9). Osteosynthesis was performed mainly through a minimally invasive approach using a locking compression plate. The rehabilitation protocol consisted of immediate mobilization and, whenever possible, immediate unrestricted weight-bearing. Five patients died during follow-up, more than 1 year after osteosynthesis. Their results were included. Autonomy and mobility were preserved with a median postoperative score of 4 (0-9) according to Parker and Palmer. The consolidation rate was 93.8%, which was obtained within 10 weeks. There were no mechanical or infectious complications. Fourteen cases were treated with minimally invasive surgery without fracture exposition; the remaining 2 required a slightly more extended approach. Full weight-bearing occurred 10 times; 20-kg partial weight-bearing was advised twice; and on 4 occasions, no weight-bearing was allowed for 6 weeks. Osteosynthesis with a minimally invasive bridge-plating technique is effective in the treatment of periprosthetic, distal femoral fractures without component loosening. Immediate full weight-bearing is possible if certain rules are respected. The surgical management presented herein is beneficial for these challenging fractures, and it may help reduce the complication rate and improve functional outcome.

  10. Greetings from the new Editor-in-Chief, Ronald Stambaugh Greetings from the new Editor-in-Chief, Ronald Stambaugh

    Science.gov (United States)

    Stambaugh, Ronald

    2012-04-01

    I am very pleased to join the outstanding leadership team for the journal Nuclear Fusion as Scientific Editor. The journal's high position in the field of fusion energy research derives in no small measure from the efforts of the IAEA team in Vienna, the production and marketing of IOP Publishing, the Board of Editors led by its chairman Mitsuru Kikuchi, the Associate Editor for Inertial Confinement Max Tabak and the outgoing Scientific Editor, Paul Thomas. During Paul's five year tenure submissions have grown by over 40%. The usage of the electronic journal has grown year by year with about 300 000 full text downloads of Nuclear Fusion articles in 2011, an impressive figure due in part to the launch of the full 50 year archive. High quality has been maintained while times for peer review and publishing have been reduced and the journal achieved some of the highest impact factors ever (as high as 4.27). The journal has contributed greatly to building the international scientific basis for fusion. I was privileged to serve from 2003 to 2010 as chairman of the Coordinating Committee for the International Tokamak Physics Activity (ITPA) which published in Nuclear Fusion the first ITER Physics Basis (1999) and its later update (2007). The scientific basis that has been developed to date for fusion has led to the construction of major facilities to demonstrate the production of power-plant relevant levels of fusion reactions. We look forward to the journal continuing to play a key role in the international effort toward fusion energy as these exciting major facilities and the various approaches to fusion continue to be developed. It is clear that Nuclear Fusion maintains its position in the field because of the perceived high quality of the submissions, the refereeing and the editorial processes, and the availability and utility of the online journal. The creation of the Nuclear Fusion Prize, led by the Board of Editors chairman Mitsuru Kikuchi, for the most outstanding

  11. To study the role of dynamic magnetic resonance imaging in assessing the femoral head vascularity in intracapsular femoral neck fractures

    Energy Technology Data Exchange (ETDEWEB)

    Kaushik, Abhishek, E-mail: abhiortho27@gmail.co [Department of Orthopedics, 513, Thermal Colony, Sector-22, Faridabad 121005, Haryana (India); Sankaran, Balu; Varghese, Mathew [Department of Orthopedics, St Stephen' s Hospital, Tis hazari, Delhi, New Delhi 110054 (India)

    2010-09-15

    Intracapsular femoral neck fractures remain unsolved fractures even after improvement in techniques of diagnosis and internal fixation. Individuals who sustain displaced femoral neck fractures are at high risk of developing avascular necrosis and non-union. Although several methods for predicting the viability of femoral head have been reported, they are not effective or widely used because of unreliability, potential complications and technical difficulties. Dynamic MRI was introduced in the recent past as a simple, non-invasive technique to predict the femoral head viability after the femoral neck fractures. In this study role of dynamic MRI was studied in 30 patients with 31 intracapsular femoral neck fractures. Fractures were divided in to three types according to dynamic curve patterns on MRI evaluation and were followed up for 6 months to 2 years to observe the final outcome. Sensitivity, Specificity and the Accuracy of dynamic MRI in predicting vascularity after femoral neck fracture are 87%, 88% and 87%, respectively. Type A or Type B curve pattern is a positive factor to successful osteosynthesis with p value <0.0001 (Chi-square test). This is a statistically significant value. From this finding it can be suggested that the reliability of dynamic curves A and B in predicting maintained vascularity of femoral head is high. This investigation can be used to predict the vascularity of femoral head after intracapsular femoral neck fractures. There was a good correlation between the outcomes of fractures and dynamic MRI curves done within 48 h of injury. This signifies the role of dynamic MRI in predicting the vascularity of femoral head as early as 48 h. A treatment algorithm can be suggested on the basis of dynamic MRI curves. The fractures with Type C dynamic curve should be considered as fractures with poor vascularity of femoral head and measures to enhance the vascularity of femoral head along with rigid internal fixation should be undertaken to promote

  12. To study the role of dynamic magnetic resonance imaging in assessing the femoral head vascularity in intracapsular femoral neck fractures

    International Nuclear Information System (INIS)

    Kaushik, Abhishek; Sankaran, Balu; Varghese, Mathew

    2010-01-01

    Intracapsular femoral neck fractures remain unsolved fractures even after improvement in techniques of diagnosis and internal fixation. Individuals who sustain displaced femoral neck fractures are at high risk of developing avascular necrosis and non-union. Although several methods for predicting the viability of femoral head have been reported, they are not effective or widely used because of unreliability, potential complications and technical difficulties. Dynamic MRI was introduced in the recent past as a simple, non-invasive technique to predict the femoral head viability after the femoral neck fractures. In this study role of dynamic MRI was studied in 30 patients with 31 intracapsular femoral neck fractures. Fractures were divided in to three types according to dynamic curve patterns on MRI evaluation and were followed up for 6 months to 2 years to observe the final outcome. Sensitivity, Specificity and the Accuracy of dynamic MRI in predicting vascularity after femoral neck fracture are 87%, 88% and 87%, respectively. Type A or Type B curve pattern is a positive factor to successful osteosynthesis with p value <0.0001 (Chi-square test). This is a statistically significant value. From this finding it can be suggested that the reliability of dynamic curves A and B in predicting maintained vascularity of femoral head is high. This investigation can be used to predict the vascularity of femoral head after intracapsular femoral neck fractures. There was a good correlation between the outcomes of fractures and dynamic MRI curves done within 48 h of injury. This signifies the role of dynamic MRI in predicting the vascularity of femoral head as early as 48 h. A treatment algorithm can be suggested on the basis of dynamic MRI curves. The fractures with Type C dynamic curve should be considered as fractures with poor vascularity of femoral head and measures to enhance the vascularity of femoral head along with rigid internal fixation should be undertaken to promote

  13. Surgery for pathological proximal femoral fractures, excluding femoral head and neck fractures: resection vs. stabilisation.

    Science.gov (United States)

    Zacherl, Max; Gruber, Gerald; Glehr, Mathias; Ofner-Kopeinig, Petra; Radl, Roman; Greitbauer, Manfred; Vecsei, Vilmos; Windhager, Reinhard

    2011-10-01

    Pathological femoral head and neck fractures are commonly treated by arthroplasty. Treatment options for the trochanteric region or below are not clearly defined. The purpose of this retrospective, comparative, double-centre study was to analyse survival and influences on outcome according to the surgical technique used to treat pathological proximal femoral fractures, excluding fractures of the femoral head and neck. Fifty-nine patients with 64 fractures were operated up on between 1998 and 2004 in two tertiary referral centres and divided into two groups. One group (S, n = 33) consisted of patients who underwent intramedullary nailing alone, and the other group (R, n = 31) consisted of patients treated by metastatic tissue resection and reconstruction by means of different implants. Median survival was 12.6 months with no difference between groups. Surgical complications were higher in the R group (n = 7) vs. the S group (n = 3), with no statistically significant difference. Patients with surgery-related complications had a higher survival rate (p = 0.049), as did patients with mechanical implant failure (p = 0.01). Survival scoring systems did not correlate with actual survival. Resection of metastases in patients with pathological fractures of the proximal femur, excluding femoral head and neck fractures, has no influence on survival. Patients with long postoperative survival prognosis are at risk of implant-related complications.

  14. Self-designed femoral neck guide pin locator for femoral neck fractures.

    Science.gov (United States)

    Xia, Shengli; Wang, Ziping; Wang, Minghui; Wu, Zuming; Wang, Xiuhui

    2014-01-01

    Closed reduction and fixation with 3 cannulated screws is a widely accepted surgery for the treatment of femoral neck fractures. However, how to obtain optimal screw placement remains unclear. In the current study, the authors designed a guide pin positioning system for femoral neck fracture cannulated screw fixation and examined its application value by comparing it with freehand guide needle positioning and with general guide pin locator positioning provided by equipment manufacturers. The screw reset rate, screw parallelism, triangle area formed by the link line of the entry point of 3 guide pins, and maximum vertical load bearing of the femoral neck after internal fixation were recorded. As expected, the triangle area was largest in the self-designed positioning group, followed by the general positioning group and the freehand positioning group. The difference among the 3 groups was statistically significant (P.05). The authors’ self-designed guide pin positioning system has the potential to accurately insert cannulated screws in femoral neck fractures and may reduce bone loss and unnecessary radiation.

  15. The Lives and Hard Times of Magazine Editors in the Big Apple: A Report on the Society of Magazine Editors' Educators Seminar.

    Science.gov (United States)

    English, John W.

    This report chronicles the first Society of Magazine Editors' educators seminar, which was held in New York from May 13-17, 1974, and was attended by ten journalism faculty. The industry's concerns, as expressed through editors, are paper, printing, postage, people, and profit. The Magazine Publishers Association (MPA) seems mostly concerned with…

  16. Biogeometry of femoral neck for implant placement

    Directory of Open Access Journals (Sweden)

    Patwa J

    2006-01-01

    Full Text Available Background : Treatment of fracture neck femur with three cannulated cancellous screws in an apex proximal configuration is practised in many parts of the world. Methods : Dimensions of femoral neck at the middle of transcervical neck using CT scan (live neck and vernier caliper (dry cadeveric neck in 20 subjects respectively were measured. Results : Inferior half of the neck is narrower than superior half. Conclusion : Biogeometry of the neck of femur does not accomodate two inferior screws and thus fixation of fracture neck femur with three canulated cancellous screws in an apex distal configuration is recommended.

  17. Superficial femoral artery: current treatment options

    International Nuclear Information System (INIS)

    Tepe, Gunnar; Schmehl, Joerg; Heller, Stephan; Wiesinger, Benjamin; Claussen, Claus D.; Duda, Stephan H.

    2006-01-01

    Treatment of the superficial femoral artery (SFA) has been among the least effective of all endovascular procedures in terms of long-term patency. The relatively small vessel lumen, in conjunction with a high plaque burden, slow flow, and a high frequency of primary occlusions, contributes to a considerable rate of acute technical failures. Because of these technical limitations a much effort has been made during the past years. This manuscript should summarize the hopes and limitations of different approaches such as brachytherapy, cutting balloons, stents and stent grafts, drug-eluting stents, and drug-coated balloons. (orig.)

  18. [Treatment of avascular necrosis of femoral head after femoral neck fracture with pedicled iliac bone graft].

    Science.gov (United States)

    Wang, Benjie; Zhao, Dewei; Guo, Lin; Yang, Lei; Li, Zhigang; Cui, Daping; Tian, Fengde; Liu, Baoyi

    2011-05-01

    To explore the effectiveness of pedicled iliac bone graft transposition for treatment of avascular necrosis of femoral head (ANFH) after femoral neck fracture. Between June 2002 and December 2006, 22 cases (22 hips, 16 left hips and 6 right hips) of ANFH after femoral neck fracture were treated with iliac bone graft pedicled with ascending branch of the lateral femoral circumflex vessels. There were 18 males and 4 females with an age range from 28 to 48 years (mean, 37.5 years). The time from injury to internal fixation was 2-31 days, and all fractures healed within 12 months after internal fixation. The ANFH was diagnosed at 15-40 months (mean, 22 months) after internal fixation. The ANFH duration was 3-11 months (mean, 8 months). According to Association Research Circulation Osseous (ARCO) staging system, 2 hips were classified as stage IIa, 3 hips as stage IIb, 3 hips as stage IIc, 3 hips as stage IIIa, 7 hips as stage IIIb, and 4 hips as stage IIIc. The preoperative Harris hip score (HHS) was 64.10 +/- 5.95. All incisions healed by first intention and the patients had no complication of lung embolism, sciatic nerve injury, lower limb deep venous thrombosis, and numbness and pain of donor site. All patients were followed up 2.5 to 6.3 years (mean, 4.8 years). The fracture healing time was 8-12 months, and no femoral neck fracture recurred. The HHS was 90.20 +/- 5.35 at last follow-up, showing significant difference when compared with the preoperative value (t = -18.447, P = 0.000). The hip function were excellent in 11 hips, good in 10 hips, fair in 1 hip, and the excellent and good rate was 95.5%. Four hips were radiographically progressed in ARCO staging, 18 hips remained stable with a stable rate of 81.8%. Pedicled iliac bone graft transposition is an ideal option for treatment of ANFH after internal fixation of femoral neck fracture for the advantages of femoral head revascularization, sufficient cancellous bone supply, and relatively simple procedure.

  19. Predictors of unsuccessful outcome in cemented femoral revisions using bone impaction grafting; Cox regression analysis of 208 cases.

    Science.gov (United States)

    Te Stroet, Martijn A J; Rijnen, Wim H C; Gardeniers, Jean W M; Schreurs, B Willem; Hannink, Gerjon

    2016-09-29

    Despite improvements in the technique of femoral impaction bone grafting, reconstruction failures still can occur. Therefore, the aim of our study was to determine risk factors for the endpoint re-revision for any reason. We used prospectively collected demographic, clinical and surgical data of all 202 patients who underwent 208 femoral revisions using the X-change Femoral Revision System (Stryker-Howmedica), fresh-frozen morcellised allograft and a cemented polished Exeter stem in our department from 1991 to 2007. Univariable and multivariable Cox regression analyses were performed to identify potential factors associated with re-revision. The mean follow-up was 10.6 (5-21) years. The cumulative re-revision rate was 6.3% (13/208). After univariable selection, sex, age, body mass index (BMI), American Association of Anesthesiologists (ASA) classification, type of removed femoral component, and mesh used for reconstruction were included in multivariable regression analysis.In the multivariable analysis, BMI was the only factor that was significantly associated with the risk of re-revision after bone impaction grafting (BMI ≥30 vs. BMI <30, HR = 6.54 [95% CI 1.89-22.65]; p = 0.003). BMI was the only factor associated with the risk of re-revision for any reason. Besides BMI also other factors, such as Endoklinik score and the type of removed femoral component, can provide guidance in the process of preclinical decision making. With the knowledge obtained from this study, preoperative patient selection, informed consent, and treatment protocols can be better adjusted to the individual patient who needs to undergo a femoral revision with impaction bone grafting.

  20. Clinical accuracy of a patient-specific femoral osteotomy guide in minimally-invasive posterior hip arthroplasty.

    Science.gov (United States)

    Schneider, Adrian K; Pierrepont, Jim W; Hawdon, Gabrielle; McMahon, Stephen

    2018-04-01

    Patient specific guides can be a valuable tool in improving the precision of planned femoral neck osteotomies, especially in minimally invasive hip surgery, where bony landmarks are often inaccessible. The aim of our study was to validate the accuracy of a novel patient specific femoral osteotomy guide for THR through a minimally invasive posterior approach, the direct superior approach (DSA). As part of our routine preoperative planning 30 patients underwent low dose CT scans of their arthritic hip. 3D printed patient specific femoral neck osteotomy guides were then produced. Intraoperatively, having cleared all soft tissue from the postero-lateral neck of the enlocated hip, the guide was placed and pinned onto the posterolateral femoral neck. The osteotomy was performed using an oscillating saw and the uncemented hip components were implanted as per routine. Postoperatively, the achieved level of the osteotomy at the medial calcar was compared with the planned level of resection using a 3D/2D matching analysis (Mimics X-ray module, Materialise, Belgium). A total of 30 patients undergoing uncemented Trinity™ acetabular and TriFit TS™ femoral component arthroplasty (Corin, UK) were included in our analysis. All but one of our analysed osteotomies were found to be within 3 mm from the planned height of osteotomy. In one patient the level of osteotomy deviated 5 mm below the planned level of resection. Preoperative planning and the use of patient specific osteotomy guides provides an accurate method of performing femoral neck osteotomies in minimally invasive hip arthroplasty using the direct superior approach. IV (Case series).

  1. EDITORIAL: Greetings from the new Editor-in-Chief

    Science.gov (United States)

    Bhattacharya, P.

    2004-04-01

    On 1 January, 2004, I assumed the position of Editor-in-Chief of Journal of Physics D: Applied Physics. I will start by saying that I will do my best to justify the confidence of the journal management and publishing staff in my abilities. I was fortunate to have been able to work, as an Editorial Board member, with my predecessor, the previous Editor-in-Chief, Professor Allister Ferguson. Allister has provided a high degree of intellectual stewardship for the journal in the last five years. He has made the job appear a worthy challenge for me. I therefore take this opportunity to thank Allister on behalf of the Editorial Board and publishing staff of the journal. Several other factors contributed to my decision to accept this position. The first is the group of people who actually go about the business of publishing. The Senior Publisher, Nicola Gulley (and her predecessor Sophy Le Masurier); the Managing Editor, Jill Membrey; the Publishing Administrators, Nina Blakesley and Sarah Towell; the Production Editor, Katie Gerrard and their office staff form an amazing group and have managed to make the operation of the journal incredibly efficient. An index of this is the speed with which incoming manuscripts are processed. The average time between the receipt of a manuscript and its web publication, if accepted, is 130 days. This is three to five times shorter than for most other journals. A factor that contributes to this success is a responsive pool of referees that the publishing staff have as a valuable resource. Ultimately, the standard bearers of any journal are the referees. Therefore, a grateful `thank you' is due from all of us at J. Phys. D to all our referees, who diligently perform this honourable task. The Associate Editors of the journal, Professors Lawler, Margaritondo and O'Grady, also provide immense scientific leadership. They help in defining new directions for the journal and in the publishing process. Last, but not least, a remarkable asset of

  2. [Poldi-Čech cemented femoral stem in total hip arthroplasty after 25 years].

    Science.gov (United States)

    Rozkydal, Z; Janíček, P

    2010-08-01

    The aim of the study was to evaluate the results of Poldi-Čech femoral stem implantation in primary total hip arthroplasty after 25 years. A group of 65 patients (90 hips) with Poldi-Čech total hip arthroplasty carried out between 1974 and 1984 was evaluated at the end of 2009. The mean follow-up of all patients was 28 years (25 to 35). There were seven men and 58 women. The mean age at the time of implantation was 43 years (26 to 60) and at the latest follow-up it was 72 years. In all patients the cemented UHMW PE acetabular component (RCH 1000) was used together with AKV Ultra 2 Poldi steel femoral stems (1st, 2nd and 3rd generations). The stem was a monoblock with a 32-mm head. The evaluation of the results was based on the Harris hip score and X ray with an A-P view of the pelvis and the affected hip. Statistical analysis was made using the life-table method. At the latest follow up the mean Harris score was 69.7 points (40 to 88). There were 69 hips with an original Poldi-Čech femoral component still in situ, 64 of them were stable and five with radiological evidence of aseptic loosening. Five patients had undergone Girdlestone resection arthroplasty for septic loosening. Thirteen patients (16 hips) had femoral stem revision. The cumulative proportion of clinical survivorship of the Poldi-Čech femoral stem, with revision for any reason as the endpoint, .was 0.93 at 6 years, 0.84 at 12 years, and 0.77 at 18, 24 and 30 years after the index surgery. Radiographic findings revealed 64 hips with stable stems, five hips with ;aseptic loosening (probable, 0 possible, 2, definite, 3). Six- teen hips were after revision surgery for aseptic loosening of the stem and five hips were after Girdlestone resection arthroplasty for septic failure. The cumulative proportion of radiological survivorship of the Poldi-Čech femoral stem with any reason as the endpoint was 0.92 at 6 years, 0.78 at 12 years, 0.72 at 18 years, 0.69 at 24 years and 0.69 at 30 years. The Poldi

  3. PROTOTIPE VIDEO EDITOR DENGAN MENGGUNAKAN DIRECT X DAN DIRECT SHOW

    Directory of Open Access Journals (Sweden)

    Djoni Haryadi Setiabudi

    2004-01-01

    Full Text Available Technology development had given people the chance to capture their memorable moments in video format. A high quality digital video is a result of a good editing process. Which in turn, arise the new need of an editor application. In accordance to the problem, here the process of making a simple application for video editing needs. The application development use the programming techniques often applied in multimedia applications, especially video. First part of the application will begin with the video file compression and decompression, then we'll step into the editing part of the digital video file. Furthermore, the application also equipped with the facilities needed for the editing processes. The application made with Microsoft Visual C++ with DirectX technology, particularly DirectShow. The application provides basic facilities that will help the editing process of a digital video file. The application will produce an AVI format file after the editing process is finished. Through the testing process of this application shows the ability of this application to do the 'cut' and 'insert' of video files in AVI, MPEG, MPG and DAT formats. The 'cut' and 'insert' process only can be done in static order. Further, the aplication also provide the effects facility for transition process in each clip. Lastly, the process of saving the new edited video file in AVI format from the application. Abstract in Bahasa Indonesia : Perkembangan teknologi memberi kesempatan masyarakat untuk mengabadikan saat - saat yang penting menggunakan video. Pembentukan video digital yang baik membutuhkan proses editing yang baik pula. Untuk melakukan proses editing video digital dibutuhkan program editor. Berdasarkan permasalahan diatas maka pada penelitian ini dibuat prototipe editor sederhana untuk video digital. Pembuatan aplikasi memakai teknik pemrograman di bidang multimedia, khususnya video. Perencanaan dalam pembuatan aplikasi tersebut dimulai dengan pembentukan

  4. VIP : A Visual Editor and Compiler for v-Promela

    OpenAIRE

    Kamel, Moataz; Leue, Stefan

    2001-01-01

    We describe the Visual Interface to Promela (VIP) tool that we have recently implemented. VIP supports the visual editing and maintenance of v-Promela models. v-Promela is a visual, object-oriented extension to Promela, the input language to the Spin model checker. We introduce the v-Promela notation as supported by the VIP editor, discuss Promela code generation, and describe the process of property validation for the resulting models. Our discussion centers around two case studies, a call p...

  5. SimDialog: A visual game dialog editor

    OpenAIRE

    Owen, C.; Biocca, F.; Bohil, C.; Conley, J.

    2008-01-01

    SimDialog is a visual editor for dialog in computer games. This paper presents the design of SimDialog, illustrating how script writers and non-programmers can easily create dialog for video games with complex branching structures and dynamic response characteristics. The system creates dialog as a directed graph. This allows for play using the dialog with a state-based cause and effect system that controls selection of non-player character responses and can provide a basic scoring mechanism ...

  6. EDITORIAL: Greetings from the new Editor-in-Chief Greetings from the new Editor-in-Chief

    Science.gov (United States)

    Nielsch, Kornelius

    2012-01-01

    On 1 January 2012 I will be assuming the position of Editor-in-Chief of the journal Semiconductor Science and Technology (SST). I am flattered by the confidence expressed in my ability to carry out this challenging job and I will try hard to justify this confidence. The previous Editor-in-Chief, Laurens Molenkamp, University of Würzburg, Germany, has worked tirelessly for the last ten years and has done an excellent job for the journal. Everyone at the journal is profoundly grateful for his leadership and for his achievements In 2012 several new members will join the Editorial Board: Professor Deli Wang (University of California, San Diego) with considerable expertise in semiconductor nanowires, Professor Saskia Fischer (Humboldt University, Berlin, Germany) with a background in semiconductor quantum devices, and Professor Erwin Kessels (Eindhoven University of Technology, Netherlands) with extensive experience in plasma processing of thin films and gate oxides. In particular, I want to express my gratitude to Professor Israel Bar-Joseph (Weizmann Institute of Science, Israel) and Professor Maria Tamargo (The City College of New York, USA), who will leave next year and who have vigorously served the Editorial Board for years. The journal has recently introduced a fast-track option for manuscripts. This option is a high-quality, high-profile outlet for new and important research across all areas of semiconductor research. Authors can expect to receive referee reports in less than 20 days from submission. Once accepted, you can expect the articles to be online within two or three weeks from acceptance and to be published in print in less than a month. Furthermore, all fast-track communications published in 2011 will be free to read for ten years. More detailed information on fast-track publication can be found on the following webpage: http://iopscience.iop.org/0268-1242/page/Fast track communications It is encouraging to see that since the journal introduced pre

  7. Comparison of Radial Access, Guided Femoral Access, and Non-Guided Femoral Access Among Women Undergoing Percutaneous Coronary Intervention.

    Science.gov (United States)

    Koshy, Linda M; Aberle, Laura H; Krucoff, Mitchell W; Hess, Connie N; Mazzaferri, Ernest; Jolly, Sanjit S; Jacobs, Alice; Gibson, C Michael; Mehran, Roxana; Gilchrist, Ian C; Rao, Sunil V

    2018-01-01

    This study was conducted to determine the association between radial access, guided femoral access, and non-guided femoral access on postprocedural bleeding and vascular complications after percutaneous coronary intervention (PCI). Bleeding events and major vascular complications after PCI are associated with increased morbidity, mortality, and cost. While the radial approach has been shown to be superior to the femoral approach in reducing bleeding and vascular complications, whether the use of micropuncture, fluoroscopy, or ultrasound mitigates these differences is unknown. We conducted a post hoc analysis of women in the SAFE-PCI for Women trial who underwent PCI and had the access method identified (n = 643). The primary endpoint of postprocedure bleeding or vascular complications occurring within 72 hours or at discharge was adjudicated by an independent clinical events committee and was compared based on three categories of access technique: radial, guided femoral (fluoroscopy, micropuncture, ultrasound), or non-guided femoral (none of the aforementioned). Differences between the groups were determined using multivariate logistic regression using radial access as the reference. Of the PCI population, 330 underwent radial access, 228 underwent guided femoral access, and 85 underwent non-guided femoral access. There was a statistically significant lower incidence of the primary endpoint with radial access vs non-guided femoral access; however, there was no significant difference between radial approach and femoral access guided by fluoroscopy, micropuncture, or ultrasound. This post hoc analysis demonstrates that while radial access is safer than non-guided femoral access, guided femoral access appears to be associated with similar bleeding events or vascular complications as radial access.

  8. Current indications for open Kuntscher nailing of femoral shaft ...

    African Journals Online (AJOL)

    Current indications for open Kuntscher nailing of femoral shaft fractures. A S Bajwa FCS(SA)ORTH. E Schnaid FCS(SA)ORTH. M E B Sweet MD PhD(rned). University of Witwatersrand, Johannesburg, South Africa. Key Words: Kuntscher nail, intramedullary nail, femoral fracture. We retrospectively reviewed 32 patients with.

  9. Bilateral impacted femoral neck fracture in a renal disease patient ...

    African Journals Online (AJOL)

    Spontaneous bilateral femoral neck facture in a renal disease patient is not common. We report a case of 47-year-old female patient with chronic renal failure and on regular hemodialysis for the past 5 years who sustained bilateral impacted femoral neck fracture without history of trauma and injury and refused any surgical ...

  10. Slipped capital femoral epiphysis: A modern treatment protocol

    Directory of Open Access Journals (Sweden)

    Slavković Nemanja

    2009-01-01

    Full Text Available The treatment of a patient with slipped capital femoral epiphysis begins with an early diagnosis and accurate classification. On the basis of symptom duration, clinical findings and radiographs, slipped capital femoral epiphysis is classified as pre-slip, acute, acute-on-chronic and chronic. The long-term outcome of slipped capital femoral epiphysis is directly related to severity and the presence or absence of avascular necrosis and/or chondrolysis. Therefore, the first priority in the treatment of slipped capital femoral epiphysis is to avoid complications while securing the epiphysis from further slippage. Medical treatment of patients with acute and acute-on-chronic slipped capital femoral epiphysis, as well as those presented in pre-slip stage, is the safest, although time-consuming. Manipulations, especially forced and repeated, are not recommended due to higher avascular necrosis risk. The use of intraoperative fluoroscopy to assist in the placement of internal fixation devices has markedly increased the success of surgical treatment. Controversy remains as to whether the proximal femoral epiphysis in severe, chronic slipped capital femoral epiphysis should be realigned by extracapsular osteotomies or just fixed in situ. The management protocol for slipped capital femoral epiphysis depends on the experience of the surgeon, motivation of the patient and technical facilities.

  11. Femoral neck fractures: A prospective assessment of the pattern ...

    African Journals Online (AJOL)

    OBJECTIVE: To review the pattern of femoral neck fractures, complications and outcome following fixation with Austin-Moore endoprosthesis. METHOD: A two year prospective study in patients who had fracture of the femoral neck based on strict inclusion criteria. All the patients were treated by Austin-Moore ...

  12. Femoral bifurcation with ipsilateral tibia hemimelia: Early outcome of ...

    African Journals Online (AJOL)

    Hereby, we present a case report of a 2-year-old boy who first presented in our orthopedic clinic as a 12-day-old neonate, with a grossly deformed right lower limb from a combination of complete tibia hemimelia and ipsilateral femoral bifurcation. Excision of femoral exostosis, knee disarticulation and prosthetic fitting gives ...

  13. Proximal Focal Femoral Deficiency in Ibadan a Developing ...

    African Journals Online (AJOL)

    The cultural aversion to amputation in our environment makes it difficult to employ that option of treatment. Proximal focal femoral deficiency in Ibadan a developing country's perspective and a review of the literature. Keywords: Proximal focal femoral deficiency , congenital malformations , limb malformations , lower limb ...

  14. [Treatment of femoral neck fracture--preference to internal fixation].

    Science.gov (United States)

    Minato, Izumi

    2011-03-01

    In the guidelines for the treatment of femoral neck fracture, prosthetic replacement is recommended in displaced one and internal fixation is in undisplaced one. However, in the long view, survived femoral head after internal fixation can be superior to prosthesis which will deteriorate as time goes by. Surgical method should be considered not only by type of fracture but general status of the patient.

  15. Magnetic resonance imaging of the femoral head necrosis

    Energy Technology Data Exchange (ETDEWEB)

    Narita, Shinya; Asada, Kanji; Yoshida, Kenjiro and others

    1986-06-01

    Ten patients with avascular femoral head necrosis and four normal adults were examined by magnetic resonance imaging (MRI). In addition, the relationship between MRI and pathophysiology of three operated-on avascular femoral heads was evaluated. The medullary cavities of the normal femoral heads had a strong signal intensity on the saturation recovery (SR) image due to fat marrow, and the T/sub 1/ relaxation time was 160 +- 11 msec. In avascular femoral head necrosis, the necrotic area had a low signal intensity on the SR image and a prolonged T/sub 1/ relaxation time, while the reactive fibrous area had more prolonged T/sub 1/ relaxation time. For these reasons, MRI was found to show the pathological changes of avascular femoral head necrosis and can be expected to be useful for making early diagnoses and operation planning.

  16. Magnetic resonance imaging of the femoral head necrosis

    International Nuclear Information System (INIS)

    Narita, Shinya; Asada, Kanji; Yoshida, Kenjiro

    1986-01-01

    Ten patients with avascular femoral head necrosis and four normal adults were examined by magnetic resonance imaging (MRI). In addition, the relationship between MRI and pathophysiology of three operated-on avascular femoral heads was evaluated. The medullary cavities of the normal femoral heads had a strong signal intensity on the saturation recovery (SR) image due to fat marrow, and the T 1 relaxation time was 160 ± 11 msec. In avascular femoral head necrosis, the necrotic area had a low signal intensity on the SR image and a prolonged T 1 relaxation time, while the reactive fibrous area had more prolonged T 1 relaxation time. For these reasons, MRI was found to show the pathological changes of avascular femoral head necrosis and can be expected to be useful for making early diagnoses and operation planning. (author)

  17. Outcomes of trochanteric femoral fractures treated with proximal femoral nail: an analysis of 100 consecutive cases

    Directory of Open Access Journals (Sweden)

    Korkmaz MF

    2014-04-01

    Full Text Available Mehmet Fatih Korkmaz,1 Mehmet Nuri Erdem,2 Zeliha Disli,3 Engin Burak Selcuk,4 Mustafa Karakaplan,1 Abdullah Gogus5 1Department of Orthopedics and Traumatology, Inonu University School of Medicine, Malatya, Turkey; 2Department of Orthopedics and Traumatology, Nisantasi University School of Medicine, Istanbul, Turkey; 3Department of Anesthesiology, Malatya Government Hospital, Malatya, Turkey; 4Department of Family Medicine, Inonu University School of Medicine, Malatya, Turkey; 5Department of Orthopedics and Traumatology, Florence Nightingale Hospital, Istanbul, Turkey Purpose: In this study, we aimed to report the results of a retrospective study carried out at our institute regarding cases of patients who had suffered proximal femoral fractures between January 2002 and February 2007, and who were treated with a proximal femoral nail. Materials and methods: One hundred consecutive cases were included in the study. A case documentation form was used to obtain intraoperative data including age, sex, mechanism of injury, type of fracture according to Association for Osteosynthesis/Association for the Study of Internal Fixation (AO/ASIF classification and the American Society of Anesthesiologists' (ASA physical status classification (ASA grade. Clinical and radiographic examinations were performed at the time of admission and at the 6th week; subsequent visits were organized on the 3rd month, 6th month, and 12th month, and in patients with longer follow-up and annually postoperatively. The Harris score of hip function was used, and any change in the position of the implants and the progress of the fracture union, which was determined radiologically, was noted. Results: The mean age of the patients was 77.66 years (range: 37–98 years, and the sex distribution was 32 males and 68 females. Seventy-three fractures were reduced by closed means, whereas 27 needed limited open reduction. The mean follow-up time for the study group was 31.3 months (range

  18. Comments on ``Anonymous Reviews'' An Editor's View of Anonymous Reviews

    Science.gov (United States)

    Goff, John A.

    I have read with great interest the recent Forum commentaries in Eos by Myrl Beck, Charles Robinove, Robert Criss, and Anne Hofmeister regarding anonymous reviews. I heartily support their position that anonymous reviews should be avoided. I have not written an anonymous review in ages (and regret the few that I did), and have always appreciated and respected greatly anyone who signs a critical review of one of my own papers. However, I would like to add some perspective from the editorial standpoint. I have served as JGR associate editor for 3 years (never anonymously!), and as Eos editor for seismology and tectonophysics for 4. Over the years, I have rejected a fair number of papers, most of those based on anonymous reviews (fortunately, none of the above commentators was one of them). The vast majority of anonymous reviews I received were well considered. While I would wish that all reviews were signed, I don't think we can summarily dismiss the fear that many would have of enmity and reprisal over a critical review. Some of these fears are likely justified. On more than one occasion, have I witnessed overly aggressive responses on the part of authors to anonymous reviews that I considered to be entirely fair and constructive in their criticisms. I do think we need to do all we can to discourage anonymous reviews, but it will be difficult to completely remove that choice from the process.

  19. Editors' welcome, PORTAL, Vol 6, No 2, July 2009

    Directory of Open Access Journals (Sweden)

    Paul Allatson

    2010-01-01

    Full Text Available ‘Post-Mao, Post-Bourdieu: Class and Taste in Contemporary China,’ is a special issue of PORTAL Journal of Multidisciplinary International Studies guest-edited by Yi Zheng (University of Sydney and Stephanie Hemelryk Donald (RMIT University. The special issue explores the relationship between taste, choice and social stratification in contemporary China, and includes a new section, ‘New Perspectives Reports,’ which is intended to showcase opinion and ideas—in this case from the People’s Republic of China, in Mandarin—that complement the main articles. We hope to include this section in future issues of the journal. The guest editors and the PORTAL editorial committee would like to acknowledge that this special issue of is a result of a funding grant from the Australian Research Council, 2003-2005: ‘The Making of Middle-Class Taste: Reading, Tourism, and Educational Choices in Urban China.’ I am also delighted to announce that the PORTAL Editorial Committee has three new members, all from the Faculty of Arts and Social Sciences at the University of Technology, Sydney: Dr Malcolm Angelucci, Dr Beatriz Carrillo, and Dr Fredericka van der Lubbe. Paul Allatson, Editor, PORTAL Journal of Multidisciplinary International Studies.

  20. An editor for the generation and customization of geometry restraints.

    Science.gov (United States)

    Moriarty, Nigel W; Draizen, Eli J; Adams, Paul D

    2017-02-01

    Chemical restraints for use in macromolecular structure refinement are produced by a variety of methods, including a number of programs that use chemical information to generate the required bond, angle, dihedral, chiral and planar restraints. These programs help to automate the process and therefore minimize the errors that could otherwise occur if it were performed manually. Furthermore, restraint-dictionary generation programs can incorporate chemical and other prior knowledge to provide reasonable choices of types and values. However, the use of restraints to define the geometry of a molecule is an approximation introduced with efficiency in mind. The representation of a bond as a parabolic function is a convenience and does not reflect the true variability in even the simplest of molecules. Another complicating factor is the interplay of the molecule with other parts of the macromolecular model. Finally, difficult situations arise from molecules with rare or unusual moieties that may not have their conformational space fully explored. These factors give rise to the need for an interactive editor for WYSIWYG interactions with the restraints and molecule. Restraints Editor, Especially Ligands (REEL) is a graphical user interface for simple and error-free editing along with additional features to provide greater control of the restraint dictionaries in macromolecular refinement.

  1. 29 CFR 793.8 - “News editor.”

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false âNews editor.â 793.8 Section 793.8 Labor Regulations... INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTION OF CERTAIN RADIO AND TELEVISION STATION EMPLOYEES... Exemption § 793.8 “News editor.” A news editor is an employee who gathers, edits and rewrites the news. He...

  2. Fixation free femoral hernia repair with a 3D dynamic responsive implant. A case series report.

    Science.gov (United States)

    Amato, G; Romano, G; Agrusa, A; Gordini, L; Gulotta, E; Erdas, E; Calò, P G

    2018-04-23

    components of the abdominal wall, instead of the low quality tissue ingrowth typical in conventional meshes and plugs. The highlighted features seem to represent a more physiologic and updated repair concept of femoral protrusions. Copyright © 2018 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

  3. Outcomes of trochanteric femoral fractures treated with proximal femoral nail: an analysis of 100 consecutive cases.

    Science.gov (United States)

    Korkmaz, Mehmet Fatih; Erdem, Mehmet Nuri; Disli, Zeliha; Selcuk, Engin Burak; Karakaplan, Mustafa; Gogus, Abdullah

    2014-01-01

    In this study, we aimed to report the results of a retrospective study carried out at our institute regarding cases of patients who had suffered proximal femoral fractures between January 2002 and February 2007, and who were treated with a proximal femoral nail. One hundred consecutive cases were included in the study. A case documentation form was used to obtain intraoperative data including age, sex, mechanism of injury, type of fracture according to Association for Osteosynthesis/Association for the Study of Internal Fixation (AO/ASIF) classification and the American Society of Anesthesiologists' (ASA) physical status classification (ASA grade). Clinical and radiographic examinations were performed at the time of admission and at the 6th week; subsequent visits were organized on the 3rd month, 6th month, and 12th month, and in patients with longer follow-up and annually postoperatively. The Harris score of hip function was used, and any change in the position of the implants and the progress of the fracture union, which was determined radiologically, was noted. The mean age of the patients was 77.66 years (range: 37-98 years), and the sex distribution was 32 males and 68 females. Seventy-three fractures were reduced by closed means, whereas 27 needed limited open reduction. The mean follow-up time for the study group was 31.3 months (range: 12-75 months). Postoperative radiographs showed a near-anatomical fracture reduction in 78% of patients. The Harris hip score was negatively correlated with the ASA score and patient age. No cases of implant failure were observed. Three patients died before discharge (one due to pulmonary embolism, two due to cardiac arrest), and five patients died due to unrelated medical conditions within the first 3 months of the follow-up. Our study showed that proximal femoral nail is a reliable fixation with good fracture union, and it is not associated with major complications in any type of trochanteric femoral fracture.

  4. Avascular necrosis of the femoral head after osteosynthesis of femoral neck fracture.

    Science.gov (United States)

    Min, Byung-Woo; Kim, Sung-Jin

    2011-05-18

    The reported incidence of avascular necrosis after femoral neck fracture fixation varies widely, and there is no consensus regarding its risk factors. We evaluated the incidence of avascular necrosis of the femoral head with the use of contemporary techniques for femoral neck fracture fixation. We then sought to determine what potential risk factors influenced the development of avascular necrosis.Between 1990 and 2005, one hundred sixty-three intracapsular femoral neck fractures in 163 patients were treated with internal fixation at our level-I trauma center. All patients were monitored until conversion to total hip arthroplasty or for a minimum of 2 years postoperatively. Ten patients (10 hips) died and 7 patients (7 hips) were lost to follow-up. The remaining 146 patients (146 hips) had a mean 5.2 years of follow-up (range, 3 months to 17 years). The incidence of avascular necrosis was 25.3% (37 hips). The average time to diagnosis of avascular necrosis was 18.8 months (range, 3-47 months). Patient sex, age, interval from injury to surgery, and mechanism of injury were statistically not associated with the development of avascular necrosis. The quality of fracture reduction, adequacy of fixation, degree of displacement, and comminution of the posterior cortex were significantly associated. After we controlled for patient and radiographic characteristics, multivariate analyses indicated that the important predictors for avascular necrosis are poor reduction (odds ratio=13.889) and initial displacement of the fracture (odds ratio=4.693). Copyright 2011, SLACK Incorporated.

  5. Analysis of slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    Magid, D.; Fishman, E.K.; Sponseller, P.D.; Griffin, P.P.

    1988-01-01

    CT with multiplanar reconstruction (CT/MPR) was used to assess 25 adolescents with known or suspected slipped capital femoral epiphysis (SCFE). CT/MPR localizes the epiphysis in three planes, establishing its relationship to the acetabulum and the metaphyseal neck. MPR facilitates measurements of head-neck angles, residusal head-neck contact, and relative retrovision. CT/MPR may establish the true age of the epiphyseal failure and can reveal subtle SCFE in the face of normal plain films. Patients often present with confusing histories; clues to the true age of failure include subtle signs of healing, remodeling, or new bone buttressing. Characterization of acute versus chronic conditions influences preoperative planning. Postoperatively, CT/MPR confirms early results and follows epiphyseal fusion and remodelling. It also detects complications, such as pin or graft migration avascular necrosis (AVN), or chondrolysis

  6. Femoral neck buttressing: a radiographic and histologic analysis

    International Nuclear Information System (INIS)

    Dixon, T.; Benjamin, J.; Lund, P.; Graham, A.; Krupinski, E.

    2000-01-01

    Objective. To examine the incidence, radiographic and histologic findings of medial femoral neck buttressing in a consecutive group of patients undergoing total hip arthroplasty.Design. Biomechanical parameters were evaluated on standard anteroposterior pelvic radiographs of 113 patients prior to hip replacement surgery. Demographic information on all patients was reviewed and histologic evaluation was performed on specimens obtained at the time of surgery.Results. The incidence of medial femoral neck buttressing was found to be 50% in a consecutive series of patients undergoing total hip arthroplasty. The incidence was slightly higher in women (56% vs 41%). Patients with buttressing had increased neck-shaft angles and smaller femoral neck diameters than were seen in patients without buttressing. Histologic evaluation demonstrated that the buttress resulted from deposition bone by the periosteum on the femoral neck in the absence of any evidence of femoral neck fracture.Conclusion. It would appear that femoral neck buttressing occurs in response to increased joint reactive forces seen at the hip being transmitted through the femoral neck. The increased joint reactive force can be related to the increased neck shaft angle seen in patients with buttressing. (orig.)

  7. Clinical study on 44 cases of femoral hernia

    International Nuclear Information System (INIS)

    Yamamoto, Ryo; Shinozaki, Hiroharu; Kase, Kenichi; Kobayashi, Kenji; Sasaki, Junichi

    2012-01-01

    Femoral hernia is a surgical disease that is frequently associated with incarceration and necessitates emergency surgery. However, there are only a few studies referred which have compared emergency and elective surgery for femoral hernias. We retrospectively reviewed the clinical characteristics of patients diagnosed as having femoral hernia between 2005 and 2009 in our institution. The clinical features of emergency repairs were compared with those of elective ones, and diagnostic values of preoperative diagnostic modalities were studied. The mean age of the patients was 73±12 years. Females comprised 68% of the cases, and right femoral hernias comprised 70% of the cases. Incarceration was associated with 66% of the cases (29 patients), and emergency surgery was performed in 52% of the patients (23 patients). Bowel resection was performed in 32% of the cases (14 patients). The mean age, body temperature, white blood cell (WBC) count, and LDH value were higher in the emergency repairs than in the elective one, and most of the hernias were repaired with McVay's procedure. CT scans had a high diagnostic value in detecting femoral hernias (44%) and incarceration (88%). It was confirmed that femoral hernias were frequently associated with incarceration and CT scan has a high diagnostic value in femoral hernias. (author)

  8. Simultaneous avascular necrosis of both medial and lateral femoral condyles

    International Nuclear Information System (INIS)

    Mansberg, R.

    2002-01-01

    Full text: Avascular necrosis (AVN) of a femoral condyle is a common orthopaedic condition. While both medial and lateral femoral condyles may be involved either singly or sequentially the simultaneous occurrence of AVN of both femoral condyles is extremely uncommon. A 57-year-old male is presented who developed the onset of severe left sided knee pain suddenly at rest. Plain and tomographic radiography was unremarkable and a bone scan was performed. Markedly increased vascularity was demonstrated in the left knee with intense osteoblastic activity in the left medial and femoral condyles more marked in the lateral femoral condyle. A diagnosis of AVN of both femoral condyles was made and a MRI exam was performed to confirm this unusual diagnosis. The MRI showed a diffuse increase in intensity bilaterally with subtle bony change in the subarticular bone consistent with AVN more marked in the left lateral femoral condyle. The patients' symptoms resolved with supportive treatment. Copyright (2002) The Australian and New Zealand Society of Nuclear Medicine Inc

  9. A Review of Periprosthetic Femoral Fractures Associated With Total Hip Arthroplasty

    Science.gov (United States)

    Marsland, Daniel; Mears, Simon C.

    2012-01-01

    Periprosthetic fractures of the femur in association with total hip arthroplasty are increasingly common and often difficult to treat. Patients with periprosthetic fractures are typically elderly and frail and have osteoporosis. No clear consensus exists regarding the optimal management strategy because there is limited high-quality research. The Vancouver classification facilitates treatment decisions. In the presence of a stable prosthesis (type-B1 and -C fractures), most authors recommend surgical stabilization of the fracture with plates, strut grafts, or a combination thereof. In up to 20% of apparent Vancouver type-B1 fractures, the femoral stem is loose, which may explain the high failure rates associated with open reduction and internal fixation. Some authors recommend routine opening and dislocation of the hip to perform an intraoperative stem stability test to rule out a loose component. Advances in plating techniques and technology are improving the outcomes for these fractures. For fractures around a loose femoral prosthesis (types B2 and 3), revision using an extensively porous-coated uncemented long stem, with or without additional fracture fixation, appears to offer the most reliable outcome. Cement-in-cement revision using a long-stem prosthesis is feasible in elderly patients with a well-fixed cement mantle. It is essential to treat the osteoporosis to help fracture healing and to prevent further fractures. We provide an overview of the causes, classification, and management of periprosthetic femoral fractures around a total hip arthroplasty based on the current best available evidence. PMID:23569704

  10. Custom total knee replacement in a dog with femoral condylar bone loss.

    Science.gov (United States)

    Liska, William D; Marcellin-Little, Denis J; Eskelinen, Esa V; Sidebotham, Christopher G; Harrysson, Ola L A; Hielm-Björkman, Anna K

    2007-06-01

    To report surgical planning, technique, and outcome of custom total knee replacement (TKR) performed to manage a medial femoral condylar nonunion in a dog. Clinical case report. A 3-year-old, 20 kg Karelian Bear Hound. Computed tomographic scan of the left pelvic limb was used to build a stereolithography model of the distal portion of the femur. The model was used to create a custom augment to replace the missing medial femoral condyle and a custom stem for intramedullary condylar cemented fixation. The augment and stem were adapted to femoral and tibial components already available. The model was used to rehearse the surgery and then the custom prosthesis was implanted. Weight bearing returned 8 hours after surgery and improved thereafter. Joint alignment was normal and prosthetic joint motion was 60-165 degrees postoperatively. The dog resumed moose hunting 3 months after surgery. Peak vertical force and impulse of the operated limb measured 17 months after surgery were 65% and 47% of the normal, contralateral limb. Based on short-term follow-up, cemented canine TKR was successfully achieved for management of a severely abnormal stifle joint. With further refinement and development of commercially available prostheses, TKR should be possible for canine patients.

  11. Results of cemented bipolar hemiarthroplasty for fracture of the femoral neck - 10 year study

    Directory of Open Access Journals (Sweden)

    Maini P

    2006-01-01

    Full Text Available Background : One of the most common treatments of displaced fracture of femoral neck in elderly is bipolar hemiarthroplasty. Method : Two hundred and seventy patients of displaced fracture of femoral neck were treated by bipolar hemiarthroplasty. The Mean age of the patients at the time of surgery was 69.80 years. Results : Follow up ranged between 12 months and 120 months. There were 8 cases each of acetabular erosion and protrusion with 10 cases of femoral stem loosening. Eight cases had post operative dislocation requiring open reduction. Eighteen patients got revision surgery to total hip replacement. The overall incidence of DVT/PE was 9.9% which declined after regular use of low molecular weight heparin. Eleven patients had post operative infection. There were 54.2 % excellent results, 21.0 % good results, 10.7 % fair and 3.7% poor results. Conclusion : Elderly patients with displaced fracture of neck femur are able to ambulate early after Cemented bipolar hemi arthroplasty. The complication rate is low, the component survival long and pre injury functional status is restored in majority of patients.

  12. Treatment of the femoral neck peudoarthrosis in childhood: Case report

    Directory of Open Access Journals (Sweden)

    Vukašinović Zoran

    2013-01-01

    Full Text Available Introduction. Femoral neck fractures in children and adolescents are rare. However, their complications are frequent - avascular necrosis, femoral neck pseudoarthrosis, premature physeal closure with consequent growth disturbance and coxa vara deformity. Case Outline. A 9.5­year­old boy was injured in a car accident, and femoral neck fracture was diagnosed. Prior to admission at our hospital he was surgically treated several times. He was admitted at our hospital eight months following the accident. On the X­ray transcervical pseudoarthrosis of the femoral neck was found, as well as coxa vara deformity and metaphyseal avascular necrosis. He was operated at our hospital; all previously placed ostefixation material was removed, valgus osteotomy of 30 degrees was done as well as additional local osteoplasty using the commercial osteoindactive agent (Osteovit®. Postoperatively, we applied skin traction, bed rest and physical therapy. At the final follow­up, the patient was recovered completely. He is now painless, the legs are of equal length, range of movements in the left hip is full, life activity is normal. The X­ray shows that the femoral neck pseudoarthrosis is fully healed. Conclusion. This case is presented in order to encourage other colleagues to challenge the problematic situation such as this one. Also, we would like to remind them what one should think about and what should be taken into consideration in the primary treatment of femoral neck fractures in children. Valgus femoral osteotomy, as a part of the primary treatment of femoral neck fracture in children (identically as in the adults can prevent the occurrence of femoral neck pseudoarthrosis.

  13. Ipsilateral femoral shaft and vertical patella fracture: a case report

    Science.gov (United States)

    Ozkan, Korhan; Eceviz, Engin; Sahin, Adem; Ugutmen, Ender

    2009-01-01

    Introduction A femoral shaft fracture with an ipsilateral patella fracture has been, to our knowledge, given only cursory attention in English-speaking literature. Case presentation A 15 year old male patient had hitten by a car to his motorcycle came to emergency room and he had been operated for his femoral shaft freacture and vertical patellar fracture which was iniatally missed. Conclusion To us it is vital to obtain CT scan of the patient’s knee if there is an ipsilateral femoral fracture with an ipsilateral knee effusion and a punction which reveals hematoma even in the absence of a fracture line seen in AP and lateral projections. PMID:19829933

  14. Aneurysm of the superficial femoral artery in an infant

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, M.; Komuro, H.; Matoba, K.; Kaneko, M. [Dept. of Paediatric Surgery, Inst. of Clinical Medicine, Univ. of Tsukuba, Ibaraki (Japan); Niitsu, M.; Itai, Y. [Dept. of Radiology, Inst. of Clinical Medicine, Univ. of Tsukuba, Ibaraki (Japan)

    2003-04-01

    An isolated arterial aneurysm in childhood is extremely rare. We report a 1-year-old girl with an aneurysm of the right superficial femoral artery, presenting as an asymptomatic mass of the thigh. The aneurysm involved the whole superficial femoral artery (9 cm in length), and surgical treatment would have required replacement of the affected artery. Conservative treatment was chosen, influenced by the patient's rapid growth at that time. Non-invasive, 3-D contrast-enhanced magnetic resonance angiography (MRA) was useful as an alternative to conventional angiography for detailed evaluation of the femoral arteries, including the aneurysm. (orig.)

  15. Avascular osteonecrosis of the femoral condyle after arthroscopic surgery

    International Nuclear Information System (INIS)

    Al-Kaar, M.; Garcia, J.; Fritschy, D.; Bonvin, J.C.

    1997-01-01

    Avascular osteonecrosis of the femoral condyle after arthroscopic surgery. Retrospective review of 10 patients who presented with avascular necrosis of the ipsilateral femoral condyle following arthroscopic meniscectomy (9 medial, 1 lateral). The bone lesions were evaluated by radiography and MRI, which were repeated for few patients. MRI allows earlier diagnosis of avascular necrosis of the femoral condyle and offers an evaluation of extent of the lesions whose evolution is variable: 3 patients required a knee prosthesis, the other 7 patients were treated medically. (authors)

  16. Sex-specific functional adaptation of the femoral diaphysis to body composition.

    Science.gov (United States)

    Lacoste Jeanson, Alizé; Santos, Frédéric; Dupej, Ján; Velemínská, Jana; Brůžek, Jaroslav

    2018-03-24

    The human femoral diaphysis is often used to reconstruct loading histories (mobility, activity, body mass). The proximal femur is known to be differentially affected by changes in total fat-mass (FM), fat-free mass (FFM), and body fat percentage (BF%), but the adaptation of the entire diaphysis to body composition has not been thoroughly characterized to date. Understanding how the femoral diaphysis adapts to body components would benefit biomechanical interpretations of the femoral variation and nutrition-related studies. Combining various methods from clinical nutrition, biological anthropology, and geometric morphometrics, we evaluated the correlation of measures taken on the entire femoral diaphysis with estimated FM, FFM, and BF% from 61 CT scans (17 females, 44 males). The sample was predominantly composed of people with obesity. Cortical area of the cross-sections and local cortical thickness showed high correlation with BF% in particular, in females only. The curvature significantly decreased with FM and BF% in both sexes. The lowest correlations are found with FFM. The observed sexual dimorphism is consistent with differing aging processes; cortical bone decreases in females through endosteal resorption while it remains almost constant in males who compensate for endosteal resorption by periosteal apposition on the diaphyseal surface. The functional adaptation to compressive forces indicates a systemic endosteal apposition of bone material with increased BF% and FM in females only. FM and BF% are linked to a straighter femur in both sexes, suggesting an optimization of the resistance to compressive loads by distributing them more linearly along the entire diaphysis. © 2018 Wiley Periodicals, Inc.

  17. Data Sharing: A New Editorial Initiative of the International Committee of Medical Journal Editors. Implications for the Editors´ Network

    NARCIS (Netherlands)

    Alfonso, Fernando; Adamyan, Karlen; Artigou, Jean-Yves; Aschermann, Michael; Boehm, Michael; Buendia, Alfonso; Chu, Pao-Hsien; Cohen, Ariel; Cas, Livio Dei; Dilic, Mirza; Doubell, Anton; Echeverri, Dario; Enç, Nuray; Ferreira-González, Ignacio; Filipiak, Krzysztof J.; Flammer, Andreas; Fleck, Eckart; Gatzov, Plamen; Ginghina, Carmen; Goncalves, Lino; Haouala, Habib; Hassanein, Mahmoud; Heusch, Gerd; Huber, Kurt; Hulín, Ivan; Ivanusa, Mario; Krittayaphong, Rungroj; Lau, Chu-Pak; Marinskis, Germanas; Mach, François; Moreira, Luiz Felipe; Nieminen, Tuomo; Oukerraj, Latifa; Perings, Stefan; Pierard, Luc; Potpara, Tatjana; Reyes-Caorsi, Walter; Rim, Se-Joong; Rødevand, Olaf; Saade, Georges; Sander, Mikael; Shlyakhto, Evgeny; Timuralp, Bilgin; Tousoulis, Dimitris; Ural, Dilek; Piek, J. J.; Varga, Albert; Lüscher, Thomas F.

    2017-01-01

    The International Committee of Medical Journal Editors (ICMJE) provides recommendations to improve the editorial standards and scientific quality of biomedical journals. These recommendations range from uniform technical requirements to more complex and elusive editorial issues including ethical

  18. Femoral artery pseudoaneurysm as a complication of angioplasty. How can it be prevented?

    Science.gov (United States)

    Gupta, Prabha Nini; Salam Basheer, Abdul; Sukumaran, Gireesh Gomaty; Padmajan, Sabin; Praveen, Satheesan; Velappan, Praveen; Nair, Bigesh Unnikrishnan; Nair, Sandeep Govindan; Kunjuraman, Usha Kumari; Madthipat, Unnikrishnan; R, Jayadevan

    2013-01-01

    Femoral pseudoaneurysm is a common complication of repeated femoral puncture during cardiac catheterisation. We describe here the development of femoral pseudoaneurysms in a patient with Takayasu's arteritis, which healed in response to conservative treatment, and review the literature on the prevention and treatment of femoral pseudoaneurysm. PMID:27326111

  19. Efficacy of MRI in classifying proximal focal femoral deficiency

    International Nuclear Information System (INIS)

    Maldjian, C.; Patel, T.Y.; Klein, R.M.; Smith, R.C.

    2007-01-01

    To evaluate the efficacy of MRI in classifying PFFD and to compare MRI to radiographic classification of PFFD. Radiographic and MRI classification of the cases was performed utilizing the Amstutz classification system. Retrospective evaluation of radiographs and MRI exams in nine hips of eight patients with proximal focal femoral deficiency was performed by two radiologists. The cases were classified by radiographs as Amstutz 1: n=3, Amstutz 3: n=3, Amstutz 4: n=1 and Amstutz 5: n=2. The classifications based on MRI were Amstutz 1: n=6, Amstutz 2: n=1, Amstutz 3: n=0, Amstutz 4: n=2 and Amstutz 5: n=0. Three hips demonstrated complete agreement. There were six discordant hips. In two of the discordant cases, follow-up radiographs of 6 months or greater intervals were available and helped to confirm MRI findings. Errors in radiographic evaluation consisted of overestimating the degree of deficiency. MRI is more accurate than radiographic evaluation for the classification of PFFD, particularly early on, prior to the ossification of cartilaginous components in the femurs. Since radiographic evaluation tends to overestimate the degree of deficiency, MRI is a more definitive modality for evaluation of PFFD. (orig.)

  20. [Early aseptic loosening of the CF 30 femoral stem].

    Science.gov (United States)

    Kovanda, M; Havlícek, V; Hudec, J

    2007-02-01

    The CF 30 stem in combination with a cementless acetabulum was used at the First Department of Orthopedic Surgery in Brno in the years 1994 to 1995. From the second year following implantation, aseptic stem loosening was recorded. In order to find explanation of this early loosening, the authors, in cooperation with the Institute of Solid Mechanics, Mechatronics and Biomechanics, carried out the stress-strain analysis in a model system. Eighty patients (31 men and 49 women) received a cemented CF30 femoral component in 1994. Of them, 16 patients underwent revision arthroplasty, three died of causes unrelated to the surgery, and four were lost to follow-up. The final clinical and radiographic check-up was carried out in 2001. The results of a comprehensive examination were available in 57 patients with a CF30 stem. The patients were evaluated on the basis of the Harris hip score and anteroposterior radiographs of the hip. X-ray films obtained immediately after surgery and those taken at regular intervals during follow-up were compared. The following characteristics were noted: translucent lines in individual zones along the stem at the cement-bone interface; osteolysis, i. e., non-linear translucent areas, at least 5 mm long, at the cement-bone interface; and subsidence of the femoral component, i. e., migration of the stem distal to the tip of the greater trochanter. The CF 30 stem survival curve showed that aseptic stem loosening occurred from post-implantation year 2, and increased during the following years. At 6 years and 6 months, a total of 16 patients underwent revision surgery, involving reimplantation in 14 and implant removal in 2 patients. Potential causes of aseptic loosening: Polyethylene wear.However, no acetabular loosening was found in this group, although acetabular components are reported to become loose more often than femoral components. By comparison of the stem survival curves for Poldi and CF 30 stems it appeared that, at 6 years and 6 months

  1. The fabulous fours! annual report from the editor

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2015-01-01

    Full Text Available No abstract available. Article truncated after 150 words. With the end of 2014, the Southwest Journal of Pulmonary and Critical Care (SWJPCC completed its fourth year of operation. Our first manuscript was posted on November 11, 2010. We posted 8 manuscripts our first year, 68 in 2011, 113 in 2012 and 164 in 2013 and 167 in 2014 (Table 1. Accompanying our increase in manuscripts, our readership continues to steadily grow, although comparisons to previous years is difficult because the methodology changed in February, 2014 (Table 2. SWJPCC continue to evolve and we made some changes in 2014: The California Thoracic Society partnered with SWJPCC; We added additional associate editors in pulmonary, critical care and imaging from Fresno (Peterson, Albuquerque (Boivin and Tucson (Arteaga. Many need to be thanked. First, thanks to our authors. Second, SWJPCC, like all journals, relies upon expert reviewers in order to publish the highest quality manuscripts. We thank the reviewers for their time ...

  2. The roles of the AAS Journals' Data Editors

    Science.gov (United States)

    Muench, August; NASA/SAO ADS, CERN/Zenodo.org, Harvard/CfA Wolbach Library

    2018-01-01

    I will summarize the community services provided by the AAS Journals' Data Editors to support authors’ when citing and preserving the software and data used in the published literature. In addition I will describe the life of a piece of code as it passes through the current workflows for software citation in astronomy. Using this “lifecycle” I will detail the ongoing work funded by a grant from the Alfred P. Sloan Foundation to the American Astronomical Society to improve the citation of software in the literature. The funded development team and advisory boards, made up of non-profit publishers, literature indexers, and preservation archives, is implementing the Force11 Software citation principles for astronomy Journals. The outcome of this work will be new workflows for authors and developers that fit in their current practices while enabling versioned citation of software and granular credit for its creators.

  3. Educating science editors: is there a comprehensive strategy?

    Science.gov (United States)

    Gasparyan, Armen Yuri; Yessirkepov, Marlen; Gorin, Sergey V; Kitas, George D

    2014-12-01

    The article considers available options to educate science editors in the fast-transforming digital environment. There is no single course or resource that can cover their constantly changing and diversifying educational needs. The involvement in research, writing, and reviewing is important for gaining editing skills, but that is not all. Membership in editorial associations and access to updated scholarly information in the field are mandatory for maintaining editorial credentials. Learned associations offer access to a few widely-recognized periodicals. There are also formal training courses covering issues in science writing and ethical editing, but no high-level evidence data exist to promote any of these. Networking with like-minded specialists within the global and regional editorial associations seems a useful strategy to upgrade editorial skills and resolve problems with the quality control and digitization of scholarly periodicals.

  4. Andreae is New Editor of Global Biogeochemical Cycles

    Science.gov (United States)

    Andreae, Meinrat O.

    2004-10-01

    As the incoming editor of Global Biogeochemical Cycles, I would like to introduce myself and my ideas for the journal to Eos readers and to current and potential GBC authors. I've had a somewhat ``roaming'' scientific evolution, coming from ``straight'' chemistry through hard-rock geochemistry to chemical oceanography, the field in which I did my Ph.D. I taught marine chemistry at Florida State University for a number of years, and developed an interest in ocean/atmosphere interactions and atmospheric chemistry. In 1987 I took on my present job at the Max Planck Institute for Chemistry, in Mainz, Germany, and, after leaving the seacoast, my interests shifted to interactions between the terrestrial biosphere and atmosphere, including the role of vegetation fires. My present focus is on the role of biogenic aerosols and biomass smoke in regulating cloud properties and influencing climate.

  5. Femoral hip prosthesis design for Thais using multi-objective shape optimization

    International Nuclear Information System (INIS)

    Virulsri, Chanyaphan; Tangpornprasert, Pairat; Romtrairat, Parineak

    2015-01-01

    Highlights: • A multi-objective shape optimization was proposed to design hip prosthesis for Thais. • The prosthesis design was optimized in terms of safety of both cement and prosthesis. • The objective functions used the Soderberg fatigue strength formulations. • Safety factors of the cement and prosthesis are 1.200 and 1.109 respectively. • The newly designed prosthesis also fits well with chosen small-sized Thai femurs. - Abstract: The long-term success of Total Hip Arthroplasty (THA) depends largely on how well the prosthetic components fit the bones. The majority of cemented femoral hip prosthesis failures are due to aseptic loosening, which is possibly caused by cracking of the cement mantle. The strength of cement components is a function of cement mantles having adequate thickness. Since the size and shape of cemented femoral hip prostheses used in Thailand are based on designs for a Caucasian population, they do not properly conform to most Thai patients’ physical requirements. For these reasons, prostheses designed specifically for Thai patients must consider the longevity and functionality of both cement and prosthesis. The objective of this study was to discover a new design for femoral hip prostheses which is not only optimal and safe in terms of both cement and prosthesis, but also fits the selected Thai femur. This study used a small-sized Thai femoral model as a reference model for a new design. Biocompatible stainless steel 316L (SS316L) and polymethylmethacrylate (PMMA) were selected as raw materials for the prosthesis and bone cement respectively. A multi-objective shape optimization program, which is an interface between optimization C program named NSGA-II and a finite element program named ANSYS, was used to optimize longevity of femoral hip prostheses by varying shape parameters at assigned cross-sections of the selected geometry. Maximum walking loads of sixty-kilograms were applied to a finite element model for stress and

  6. EDITORIAL: A word from the new Editor-in-Chief A word from the new Editor-in-Chief

    Science.gov (United States)

    Mostowski, Jan

    2011-01-01

    TIn the autumn of 2010 I became the Editor-in Chief of European Journal of Physics (EJP). EJP is a place for teachers, instructors and professors to exchange their views on teaching physics at university level and share their experience. It is general opinion that no good research is possible without connection with good, high-quality teaching, at the university level in particular. Therefore excellence in physics teaching is important to the physics community. European Journal of Physics is proud of its contribution to achieving this goal. As Editor-in-Chief, I will continue to work to this general objective of the journal. We will publish articles on specific topics in physics, stressing originality of presentation and suitability for use in students'laboratories, lectures and physics teaching in general. We will also publish more pedagogical papers presenting the achievements of particular teaching methods. In addition, we will continue to publish special sections on particular areas of physics, as well as the annual special section on physics competitions. European Journal of Physics is in good shape. Due to the work of the previous editors and the publisher, the readership is high and growing steadily, and many excellent papers are being submitted and published. I hope that this positive trend for the journal will continue, and I will do my best to keep to this high standard. A few words about myself. I work in the Institute of Physics in Warsaw, Poland. My main research interests are in theoretical quantum optics and I have published about 80 research papers on this topic. For many years I was involved in teaching physics at university and in high school. I am a co-author of a textbook on physics for high-school students and of a problem book in quantum mechanics. For the last ten years, I have been involved in the International Physics Olympiad and over the last few years I have been a member of the Editorial Board of European Journal of Physics.

  7. Avascular osteonecrosis of the femoral condyle after arthroscopic surgery; Osteonecrose aseptique du condyle femoral apres meniscectomie par voie arthroscopique

    Energy Technology Data Exchange (ETDEWEB)

    Al-Kaar, M.; Garcia, J. [Hopital Cantonal Geneve, Geneva (Switzerland); Fritschy, D.; Bonvin, J.C. [Policlinique de Chirurgie, Hopital Cantonal Universitaire, Geneve (Switzerland)

    1997-04-01

    Avascular osteonecrosis of the femoral condyle after arthroscopic surgery. Retrospective review of 10 patients who presented with avascular necrosis of the ipsilateral femoral condyle following arthroscopic meniscectomy (9 medial, 1 lateral). The bone lesions were evaluated by radiography and MRI, which were repeated for few patients. MRI allows earlier diagnosis of avascular necrosis of the femoral condyle and offers an evaluation of extent of the lesions whose evolution is variable: 3 patients required a knee prosthesis, the other 7 patients were treated medically. (authors). 21 refs.

  8. Beacon Editor: Capturing Signal Transduction Pathways Using the Systems Biology Graphical Notation Activity Flow Language.

    Science.gov (United States)

    Elmarakeby, Haitham; Arefiyan, Mostafa; Myers, Elijah; Li, Song; Grene, Ruth; Heath, Lenwood S

    2017-12-01

    The Beacon Editor is a cross-platform desktop application for the creation and modification of signal transduction pathways using the Systems Biology Graphical Notation Activity Flow (SBGN-AF) language. Prompted by biologists' requests for enhancements, the Beacon Editor includes numerous powerful features for the benefit of creation and presentation.

  9. 29 CFR 793.11 - Combination announcer, news editor and chief engineer.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Combination announcer, news editor and chief engineer. 793... OF CERTAIN RADIO AND TELEVISION STATION EMPLOYEES FROM OVERTIME PAY REQUIREMENTS UNDER SECTION 13(b... editor and chief engineer. The 13(b)(9) exemption, as was made clear during the debate on the amendment...

  10. "Clones," Codes, and Conflicts of Interest in Cartooning: Cartoonists and Editors Look at Ethics.

    Science.gov (United States)

    Riffe, Daniel; And Others

    A study examined differences between political cartoonists and op-ed page editors on both traditional ethical issues (such as conflicts of interest) and the special, style-related concerns of editorial cartoonists. Hypotheses proposed were that editors and cartoonists (1) would condemn "cloning" or copying, reflecting an ethical…

  11. Authors and editors assort on gender and geography in high-rank ecological publications.

    Directory of Open Access Journals (Sweden)

    Kezia R Manlove

    Full Text Available Peer-reviewed publication volume and caliber are widely-recognized proxies for academic merit, and a strong publication record is essential for academic success and advancement. However, recent work suggests that publication productivity for particular author groups may also be determined in part by implicit biases lurking in the publication pipeline. Here, we explore patterns of gender, geography, and institutional rank among authors, editorial board members, and handling editors in high-impact ecological publications during 2015 and 2016. A higher proportion of lead authors had female first names (33.9% than editorial board members (28.9%, and the proportion of female first names among handling editors was even lower (21.1%. Female editors disproportionately edited publications with female lead authors (40.3% of publications with female lead authors were handled by female editors, though female editors handled only 34.4% of all studied publications. Additionally, ecological authors and editors were overwhelmingly from countries in the G8, and high-ranking academic institutions accounted for a large portion of both the published work, and its editorship. Editors and lead authors with female names were typically affiliated with higher-ranking institutions than their male peers. This description of author and editor features provides a baseline for benchmarking future trends in the ecological publishing culture.

  12. Transparent Model Transformation: Turning Your Favourite Model Editor into a Transformation Tool

    DEFF Research Database (Denmark)

    Acretoaie, Vlad; Störrle, Harald; Strüber, Daniel

    2015-01-01

    Current model transformation languages are supported by dedicated editors, often closely coupled to a single execution engine. We introduce Transparent Model Transformation, a paradigm enabling modelers to specify transformations using a familiar tool: their model editor. We also present VMTL, th...... model transformation tool sharing the model editor’s benefits, transparently....

  13. R. E. (Ted) Munn — Founding editor; a mini-biography

    Science.gov (United States)

    Taylor, Peter; Thomas, Morley; Truhlar, Ed; Whelpdale, Doug

    1996-02-01

    Ted Munn founded Boundary-Layer Meteorology in 1970 and served as Editor for 75 volumes over a 25 year period. This short article briefly reviews Ted's scientific career with the Atmospheric Environment Service (of Canada), the International Institute for Applied Systems Analysis in Austria and with the Institute of Environmental Studies at the University of Toronto, and as editor of this journal.

  14. Adolescent Sexual Initiation through the Lens of Letters to the Editor Published in Polish Teenage Magazines

    Science.gov (United States)

    Kopacz, Marek S.; Bajka-Kopacz, Aleksandra

    2012-01-01

    Almost all teenage magazines invite readers to submit questions concerning relationships, published as letters to the editor, popularly called "advice columns," often containing explicit questions about sexuality. This study aims to examine, firstly, how themes related to sexual initiation are presented in letters to the editor published…

  15. Authors and editors assort on gender and geography in high-rank ecological publications.

    Science.gov (United States)

    Manlove, Kezia R; Belou, Rebecca M

    2018-01-01

    Peer-reviewed publication volume and caliber are widely-recognized proxies for academic merit, and a strong publication record is essential for academic success and advancement. However, recent work suggests that publication productivity for particular author groups may also be determined in part by implicit biases lurking in the publication pipeline. Here, we explore patterns of gender, geography, and institutional rank among authors, editorial board members, and handling editors in high-impact ecological publications during 2015 and 2016. A higher proportion of lead authors had female first names (33.9%) than editorial board members (28.9%), and the proportion of female first names among handling editors was even lower (21.1%). Female editors disproportionately edited publications with female lead authors (40.3% of publications with female lead authors were handled by female editors, though female editors handled only 34.4% of all studied publications). Additionally, ecological authors and editors were overwhelmingly from countries in the G8, and high-ranking academic institutions accounted for a large portion of both the published work, and its editorship. Editors and lead authors with female names were typically affiliated with higher-ranking institutions than their male peers. This description of author and editor features provides a baseline for benchmarking future trends in the ecological publishing culture.

  16. Letter to the Editor: Re: A Five-year Survey of Cesarean Delivery at a ...

    African Journals Online (AJOL)

    Letter to the Editor: Re: A Five-year Survey of Cesarean Delivery at a Nigerian Tertiary Hospital. VO Ajuzieogu, AO Amucheazi. Abstract. Letter to the editor - no abstract. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Article Metrics. Metrics Loading .

  17. early functional outcome of distal femoral fractures at kenyatta

    African Journals Online (AJOL)

    The leading cause was RTA, followed by falls from a height. ... Distal femoral fractures cause considerable morbidity .... as means and standard deviations. .... Anaesthesia. Spinal. 37 (80). General Anaesthesia (GA). 9 (20). Transfusion.

  18. Femoral neck fractures complicating gaucher disease in children

    Energy Technology Data Exchange (ETDEWEB)

    Goldman, A.B.; Jacobs, B.

    1984-09-01

    In normal children, fractures of the femoral neck are uncommon and accompany severe trauma and multiple injuries elsewhere in the skeleton. In children with Gaucher disease, a rare hereditary disorder of lipid metabolism, midcervical or basicervical fractures can occur with minor or no trauma and without other injury to the skeleton. Three children with Gaucher disease who developed pathologic fractures of the femoral neck are described. In all three, the fractures occurred between five and nine years of age, and the fracture lines passed through areas of abnormal bone characterized by poorly defined patches of increased and decreased density and cortical thinning along the medial femoral necks. In the affected hips, there was no evidence of avascular necrosis of the femoral heads at the time of injury. One child's fracture was preceeded by multiple bone 'crisis' localized to the proximal femora.

  19. Femoral neck fractures complicating gaucher disease in children

    International Nuclear Information System (INIS)

    Goldman, A.B.; Jacobs, B.

    1984-01-01

    In normal children, fractures of the femoral neck are uncommon and accompany severe trauma and multiple injuries elsewhere in the skeleton. In children with Gaucher disease, a rare hereditary disorder of lipid metabolism, midcervical or basicervical fractures can occur with minor or no trauma and without other injury to the skeleton. Three children with Gaucher disease who developed pathologic fractures of the femoral neck are described. In all three, the fractures occurred between five and nine years of age, and the fracture lines passed through areas of abnormal bone characterized by poorly defined patches of increased and decreased density and cortical thinning along the medial femoral necks. In the affected hips, there was no evidence of avascular necrosis of the femoral heads at the time of injury. One child's fracture was preceeded by multiple bone 'crisis' localized to the proximal femora. (orig.)

  20. Effectiveness of plate augmentation for femoral shaft nonunion after nailing

    Directory of Open Access Journals (Sweden)

    Chin-Jung Lin

    2012-08-01

    Conclusion: Plate augmentation with retention of the nail with autologous bone grafting may be an effective and reliable alternative in treating nonunion of the femoral shaft fracture after open reduction and internal fixation with intramedullary nail.

  1. 'Femoral head necrosis' in metabolic and hormonal osteopathies

    International Nuclear Information System (INIS)

    Heuck, F.H.W.; Treugut, H.

    1984-01-01

    The pathogenesis of bone necrosis is discussed with special attention and with respect to metabolic, hormonal, and vascular factors. The influence of statics and dynamics of the hip joint bones for the development of aseptic necrosis are discussed. 45 patients with ''idiopathic femoral head necroses'' were observed, including 6 cases of renal osteopathy following renal transplantation and immune suppression therapy, 14 cases of long term corticoid therapy, and 11 cases of liver diseases of different genesis. The femoral head necrosis understood as complication of an osteopathy. In our patients there were 31 males and 14 females - which means higher involvement of males. Plain radiological findings and CT-findings of changes of the femoral heat structure in different stages of the disease are described. Early diagnosis of metabolic and hormonal osteopathies is demanded for a joint keeping therapy of the beginning femoral head necrosis. (orig.) [de

  2. Short-term outcome of patients with closed comminuted femoral ...

    African Journals Online (AJOL)

    Short-term outcome of patients with closed comminuted femoral shaft fracture treated with locking intramedullary sign nail at Muhimbili Orthopaedic Institute in Tanzania. Billy T. Haonga, Felix S. Mrita, Edmundo E. Ndalama, Jackline E. Makupa ...

  3. Delayed appearance of hypaesthesia and paralysis after femoral nerve block

    Directory of Open Access Journals (Sweden)

    Stefan Landgraeber

    2012-03-01

    Full Text Available We report on a female patient who underwent an arthroscopy of the right knee and was given a continuous femoral nerve block catheter. The postoperative course was initially unremarkable, but when postoperative mobilisation was commenced, 18 hours after removal of the catheter, the patient noticed paralysis and hypaesthesia. Examination confirmed the diagnosis of femoral nerve dysfunction. Colour duplex sonography of the femoral artery and computed tomography of the lumbar spine and pelvis yielded no pathological findings. Overnight the neurological deficits decreased without therapy and were finally no longer detectable. We speculate that during the administration of the local anaesthetic a depot formed, localised in the medial femoral intermuscular septa, which was leaked after first mobilisation. To our knowledge no similar case has been published up to now. We conclude that patients who are treated with a nerve block should be informed and physician should be aware that delayed neurological deficits are possible.

  4. Incidence and predictors of post-catheterization femoral artery pseudoaneurysms

    Directory of Open Access Journals (Sweden)

    Hussein Heshmat Kassem

    2013-09-01

    Conclusion: Femoral artery pseudoaneurysms are not uncommon. Female gender, obesity, hypertension, the use of antiplatelet and/or anticoagulant therapy and faulty puncture techniques are independent risk factors for FAPs.

  5. Delayed appearance of hypaesthesia and paralysis after femoral nerve block

    Science.gov (United States)

    Landgraeber, Stefan; Albrecht, Thomas; Reischuck, Ulrich; von Knoch, Marius

    2012-01-01

    We report on a female patient who underwent an arthroscopy of the right knee and was given a continuous femoral nerve block catheter. The postoperative course was initially unremarkable, but when postoperative mobilisation was commenced, 18 hours after removal of the catheter, the patient noticed paralysis and hypaesthesia. Examination confirmed the diagnosis of femoral nerve dysfunction. Colour duplex sonography of the femoral artery and computed tomography of the lumbar spine and pelvis yielded no pathological findings. Overnight the neurological deficits decreased without therapy and were finally no longer detectable. We speculate that during the administration of the local anaesthetic a depot formed, localised in the medial femoral intermuscular septa, which was leaked after first mobilisation. To our knowledge no similar case has been published up to now. We conclude that patients who are treated with a nerve block should be informed and physician should be aware that delayed neurological deficits are possible. PMID:22577509

  6. Femoral neck fractures complicating gaucher disease in children

    Energy Technology Data Exchange (ETDEWEB)

    Goldman, A B; Jacobs, B

    1984-09-01

    In normal children, fractures of the femoral neck are uncommon and accompany severe trauma and multiple injuries elsewhere in the skeleton. In children with Gaucher disease, a rare hereditary disorder of lipid metabolism, midcervical or basicervical fractures can occur with minor or no trauma and without other injury to the skeleton. Three children with Gaucher disease who developed pathologic fractures of the femoral neck are described. In all three, the fractures occurred between five and nine years of age, and the fracture lines passed through areas of abnormal bone characterized by poorly defined patches of increased and decreased density and cortical thinning along the medial femoral necks. In the affected hips, there was no evidence of avascular necrosis of the femoral heads at the time of injury. One child's fracture was preceeded by multiple bone 'crisis' localized to the proximal femora.

  7. Validation of a new classification system for interprosthetic femoral fractures.

    Science.gov (United States)

    Pires, Robinson Esteves Santos; Silveira, Marcelo Peixoto Sena; Resende, Alessandra Regina da Silva; Junior, Egidio Oliveira Santana; Campos, Tulio Vinicius Oliveira; Santos, Leandro Emilio Nascimento; Balbachevsky, Daniel; Andrade, Marco Antônio Percope de

    2017-07-01

    Interprosthetic femoral fracture (IFF) incidence is gradually increasing as the population is progressively ageing. However, treatment remains challenging due to several contributing factors, such as poor bone quality, patient comorbidities, small interprosthetic fragment, and prostheses instability. An effective and specific classification system is essential to optimize treatment management, therefore diminishing complication rates. This study aims to validate a previously described classification system for interprosthetic femoral fractures. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Incidence and predictors of post-catheterization femoral artery pseudoaneurysms

    OpenAIRE

    Kassem, Hussein Heshmat; Elmahdy, Mahmoud Farouk; Ewis, Essam Baligh; Mahdy, Soilman Ghareeb

    2013-01-01

    Background: Femoral artery pseudoaneurysm (FAP) is a troublesome complication after transfemoral catheter procedures. The incidence and predictors of FAP as a separate entity have not been extensively studied. Aim: Detect prospectively the incidence and predictors of post catheterization FAP. Methods: From June 2009 till June 2011, we prospectively included all patients who underwent catheterization from the femoral approach. Duplex ultrasound was performed in cases with clinical suspic...

  9. Mechanical Characterization of Femoral Cartilage Under Unicompartimental Osteoarthritis

    OpenAIRE

    Vidal-Lesso, A.; Ledesma-Orozco, E.; Daza-Benítez, L.; Lesso-Arroyo, R.

    2014-01-01

    The aim of this study was to determine the mechanical properties and thickness of articular cartilage in the unaffected femoral regions in cases of unicompartimental osteoarthritis on the knees. The specimens were tested using a 3mm plane-ended cylindrical indenter and a displacement of 0.5mm was applied at specific points in seven femoral knee cartilages with unicompartimental osteoarthritis. The thickness, stiffness, elastic modulus, shear modulus and bulk modulus were obtained. These prope...

  10. Tritium retention in the femoral bone marrow and spleens of mice receiving single intravenous injections of tritiated water and tritiated thymidine

    International Nuclear Information System (INIS)

    Joshima, Hisamasa; Matsushita, Satoru; Fukutsu, Kumiko; Kashima, Masatoshi

    1987-01-01

    To derive parameters necessary for evaluating the possible hazards of tritium, retention of tritium in total and TCA-insoluble fractions of the femoral marrow and spleen of mice were observed after single intravenous injections of tritiated water and tritiated thymidine. Retention curves of tritium in TCA-insoluble fractions of the femoral marrow and spleen were resolved fairly well into two exponential components. After injecting tritiated thymidine, most of the activity was detected in the TCA-insoluble fraction. Tritium in this fraction decreased with half-times of 2.2 days in the femoral marrow and 3.6 days in the spleen as the first component, and 23.9 days and 30.5 days, respectively, as the second component. After tritiated water injections, the tritium incorporated into the TCA-insoluble fraction was quite small. Most of the activity was considered to be in the TCA-soluble fraction. Tritium in this fraction was estimated to decrease with half-times of 2.6 days in the femoral marrow and 2.3 days in the spleen as the first component, and 8.0 days and 8.2 days, respectively, as the second component. It is concluded that the retention curves of tritium in the bone marrow are similar to those in the spleen for tritiated water, but not for tritiated thymidine. (author)

  11. Mid-term migration analysis of a femoral short-stem prosthesis: a five-year EBRA-FCA-study.

    Science.gov (United States)

    Freitag, Tobias; Fuchs, Michael; Woelfle-Roos, Julia V; Reichel, Heiko; Bieger, Ralf

    2018-05-01

    The objective of this study was to evaluate the mid-term migration pattern of a femoral short stem. Implant migration of 73 femoral short-stems was assessed by Ein-Bild-Roentgen-Analysis Femoral-Component-Analysis (EBRA-FCA) 5 years after surgery. Migration pattern of the whole group was analysed and compared to the migration pattern of implants "at risk" with a subsidence of more than 1.5 mm 2 years postoperative. Mean axial subsidence was 1.1 mm (-5.0 mm to 1.5 mm) after 60 months. There was a statistical significant axial migration until 2 years postoperative with settling thereafter. 2 years after surgery 18 of 73 Implants were classified "at risk." Nevertheless, all stems showed secondary stabilisation in the following period with no implant failure neither in the group of implants with early stabilisation nor the group with extensive early onset migration. In summary, even in the group of stems with more pronounced early subsidence, delayed settling occurred in all cases. The determination of a threshold of critical early femoral short stem subsidence is necessary because of the differing migration pattern described in this study with delayed settling of the Fitmore stem 2 years postoperatively compared to early settling within the first postoperative year described for conventional stems.

  12. MR imaging of avascular femoral head necrosis - pre- and postoperative studies

    International Nuclear Information System (INIS)

    Schedel, H.; Ziegler, L.; Vogl, T.; Hilbertz, T.; Lissner, J.; Buchner, H.

    1992-01-01

    46 patients with avascular necrosis of the femoral head were examined by T 2 - and T 1 -weighted MR before and after infusion of Gd-DTPA. Both sides were involved in 12 cases. The classification was done according to Ficat. In early stages and in postoperative studies a correlation of signal intensity after infusion of Gd-DTPA and clinical symptoms was found. Hyperintensity of the avascular area or of the implanted material was assumed to be vascularised or vital components in 4 cases of Ficat 1 and 15 postoperative studies. Contrariwise, we found in 5 patients with severe postoperative symptoms, low signal intensity areas due to avascular regions. (orig.) [de

  13. OUTCOME OF INTERTROCHANTERIC FRACTURES TREATED WITH SHORT FEMORAL NAIL

    Directory of Open Access Journals (Sweden)

    Yadkikar Shriniwas V, Yadkikar Vishnu S, Patel Mayank, Dhruvilkumar Gandhi, Kunkulol Rahul

    2015-07-01

    Full Text Available Aim: To study the functional and anatomical outcome of Inter trochanteric fractures of femur treated with Short femoral nail. Method: This was retrospective study carried out in which 60 patients (50 Male & 10 Female of 5th to 8th decade of life who underwent Short femoral nail fixation for both Stable & unstable Inter Trochanteric fractures. From the records each patient data was assessed for time required for mobilization, average fracture healing time, degree and grade of hip range of movements, complications, anatomical reduction achieved using Short femoral nail fixation. Results: 55 cases achieved Anatomical reduction. Good to Excellent Hip range of Motion was in 55 (90 % cases. Fracture union was seen in all cases. No evidence of Z Effect, AVN of femoral head, Implant failure, Fracture of femoral shaft below the Nail tip was seen in any case, However Reverse Z Effect was seen in 4 & shortening of less than 2 cm was seen in 2 cases, External rotation of 10 degree was seen in1 case. Average fracture Union time was 14 weeks. Conclusion: Short femoral nail appears to be better implant for fixation of both Stable & unstable Inter Trochanteric fractures as it fulfills the biomechanical demands being minimally invasive, less blood loss , it prevents excessive varus collapse at fracture site, produces less stress riser effect below the nail tip, Short operative time, Facilitates early mobilization & functional recovery of patients. But Anatomical fracture reduction & optimal implant placement are absolutely must for better results.

  14. Femoral Neck Shaft Angle in Men with Fragility Fractures

    Directory of Open Access Journals (Sweden)

    S. P. Tuck

    2011-01-01

    Full Text Available Introduction. Femoral neck shaft angle (NSA has been reported to be an independent predictor of hip fracture risk in men. We aimed to assess the role of NSA in UK men. Methods. The NSA was measured manually from the DXA scan printout in men with hip (62, 31 femoral neck and 31 trochanteric, symptomatic vertebral (91, and distal forearm (67 fractures and 389 age-matched control subjects. Age, height, weight, and BMD (g/cm2: lumbar spine, femoral neck, and total femur measurements were performed. Results. There was no significant difference in mean NSA between men with femoral neck and trochanteric hip fractures, so all further analyses of hip fractures utilised the combined data. There was no difference in NSA between those with hip fractures and those without (either using the combined data or analysing trochanteric and femoral neck shaft fractures separately, nor between fracture subjects as a whole and controls. Mean NSA was smaller in those with vertebral fractures (129.2° versus 131°: P=0.001, but larger in those with distal forearm fractures (129.8° versus 128.5°: P=0.01. Conclusions. The conflicting results suggest that femoral NSA is not an important determinant of hip fracture risk in UK men.

  15. An additional reference axis improves femoral rotation alignment in image-free computer navigation assisted total knee arthroplasty.

    Science.gov (United States)

    Inui, Hiroshi; Taketomi, Shuji; Nakamura, Kensuke; Sanada, Takaki; Tanaka, Sakae; Nakagawa, Takumi

    2013-05-01

    Few studies have demonstrated improvement in accuracy of rotational alignment using image-free navigation systems mainly due to the inconsistent registration of anatomical landmarks. We have used an image-free navigation for total knee arthroplasty, which adopts the average algorithm between two reference axes (transepicondylar axis and axis perpendicular to the Whiteside axis) for femoral component rotation control. We hypothesized that addition of another axis (condylar twisting axis measured on a preoperative radiograph) would improve the accuracy. One group using the average algorithm (double-axis group) was compared with the other group using another axis to confirm the accuracy of the average algorithm (triple-axis group). Femoral components were more accurately implanted for rotational alignment in the triple-axis group (ideal: triple-axis group 100%, double-axis group 82%, P<0.05). Copyright © 2013 Elsevier Inc. All rights reserved.

  16. Necrosis de la cabeza femoral tras fractura del cuello femoral tratada mediante osteosíntesis

    OpenAIRE

    Martínez Martín, Angel Antonio; Panisello Sebastiá, Juan José; Lallana Duplá, J.; Herrera Rodríguez, Antonio

    2000-01-01

    Se presenta un análisis retrospectivo de las necrosis aparecidas en 233 pacientes con fractura de cuello femoral fijada con tornillos de esponjosa. La edad media fue de 80,6 años. Setenta y un pacientes (26%) tuvieron una fractura no desplazada (Garden I o II) y 172 (74%) una fractura desplazada (Garden III o IV). Seis meses tras la cirugía 170 pacientes sobrevivían (72,9%). Treinta y cuatro de ellos (20%) habían desarrollado necrosis y 10 (5,9%) colapso. Tras un seguimiento de 12 meses 114 p...

  17. Combined Radial and Femoral Access Strategy and Radial-Femoral Rendezvous in Patients With Long and Complex Iliac Occlusions.

    Science.gov (United States)

    Hanna, Elias B; Mogabgab, Owen N; Baydoun, Hassan

    2018-01-01

    We present cases of complex, calcified iliac occlusive disease revascularized via a combined radial-femoral access strategy. Through a 6-French, 125-cm transradial guiding catheter, antegrade guidewires and catheters are advanced into the iliac occlusion, while retrograde devices are advanced transfemorally. The transradial and transfemoral channels communicate, allowing the devices to cross the occlusion into the true lumen (radial-femoral antegrade-retrograde rendezvous).

  18. Estimated carotid-femoral pulse wave velocity has similar predictive value as measured carotid-femoral pulse wave velocity

    DEFF Research Database (Denmark)

    Greve, Sara V; Blicher, Marie K; Kruger, Ruan

    2016-01-01

    BACKGROUND: Carotid-femoral pulse wave velocity (cfPWV) adds significantly to traditional cardiovascular risk prediction, but is not widely available. Therefore, it would be helpful if cfPWV could be replaced by an estimated carotid-femoral pulse wave velocity (ePWV) using age and mean blood pres...... that these traditional risk scores have underestimated the complicated impact of age and blood pressure on arterial stiffness and cardiovascular risk....

  19. Femoral neck-shaft angle in extra-capsular proximal femoral fracture fixation; does it make a TAD of difference?

    Science.gov (United States)

    Walton, N P; Wynn-Jones, H; Ward, M S; Wimhurst, J A

    2005-11-01

    The effect of femoral neck-shaft angle and implant type on the accuracy of lag screw placement in extra-capsular proximal femoral fracture fixation was investigated. Radiographs of all extra-capsular proximal femoral fractures seen in one unit over 18 months were reviewed. Of 399 cases, 307 (237 female, 70 male) were included in the study as they had no contra-lateral proximal femoral metal work. Femoral neck-shaft angle (NSA) of the uninjured hip and magnification adjusted tip-apex distance (TAD) of femoral head lag screw were measured. Type of fixation implant was 135 degrees classic hip screw (CHS) (n=144) or 130 degrees intra-medullary hip screw (IMHS) (n=163). Mean contra-lateral NSA was 130.2 degrees (112.9--148 degrees ) and 64 patients (58 female, 6 male) had a NSA TAD was 18.7 mm (5.8--43.8mm) and 88.9% of cases had a TAD of less than 25 mm. TAD values were significantly greater using an IMHS if NSA was 125 degrees (p=0.028). This was not the case with the CHS. The use of the 130 degrees -IMHS in patients with a NSA 125 degrees and caution is advocated when using this device in such cases.

  20. Prevention of excessive postoperative sliding of the short femoral nail in femoral trochanteric fractures.

    Science.gov (United States)

    Ito, Juji; Takakubo, Yuya; Sasaki, Kan; Sasaki, Junya; Owashi, Kazuya; Takagi, Michiaki

    2015-05-01

    Lag screw cut-out is one of the major postoperative complications on femoral trochanteric fractures. However, precise analyses of excessive sliding and lag screw cut-out were limited. The purpose of this study was to investigate the factors that induce this unfavorable event. From April 2010 to April 2013, 226 patients were operated in our institute using a short femoral nail. Among them, 177 patients (29 males and 148 females) with a mean age of 84 years (60-97 years), who were followed up >3 months, were included in this study. The postoperative sliding distance, fracture type (AO/OTA classification), tip-apex distance (TAD), reduction pattern in the postoperative X-ray (antero-posterior and lateral views), bone quality (canal flare and cortical indices), walking ability at the time of pre-injury and final follow-up, and complications were investigated retrospectively. The mean sliding distance was 3.7 mm, and one cut-out case (0.6 %) was observed. The sliding distance of the AO/OTA 31-A2 fractures was significantly longer than that of the A1 fractures (p fractures, an accurate reduction in the lateral view at surgery is important, particularly in unstable fractures.

  1. Multiplanar CT assessment of femoral head displacement in slipped capital femoral epiphysis

    Energy Technology Data Exchange (ETDEWEB)

    Monazzam, Shafagh [Rady Children' s Hospital and Health Center, Department of Orthopedics, San Diego, CA (United States); Dwek, Jerry R. [Rady Children' s Hospital and Health Center, Department of Radiology, San Diego, CA (United States); Hosalkar, Harish S. [Center for Hip Preservation, Department of Orthopedic Surgery, TriCity Medical Center, Oceanside, CA (United States)

    2013-12-15

    With recent changing approaches to the management of slipped capital femoral epiphysis (SCFE), the accurate radiographic assessment of maximum extent of displacement is crucial for planning surgical treatment. To determine what plane best represents the maximum SCFE displacement as quantified by the head-neck angle difference (HNAD), whether HNAD can quantitatively differentiate the SCFE cohort from the normal cohort, based on CT, and how Southwick slip angle (SSA) compares to HNAD. We reviewed 19 children with SCFE (23 affected hips) with preoperative CT scans and 27 age- and sex-matched children undergoing abdominal CT for non-orthopedic problems. Head-neck angle (HNA), the angle between the femoral epiphysis and the neck axis, was measured in three planes on each hip and the HNAD (affected - unaffected hip) was determined. SSA was measured on radiographs. The coronal HNAD (mean 8.7 ) was less than both the axial-oblique (mean 30.7 ) and sagittal (mean 37.4 ) HNADs, which were also greater than the HNADs of the normal cohort. Grouping HNAD measurements by SSA severity classification did not consistently distinguish between SCFE severity levels. Axial-oblique and sagittal planes best represent the maximum SCFE displacement while biplanar radiograph may underestimate the extent of the displacement, thereby potentially altering the management between in situ pinning and capital realignment. (orig.)

  2. Evaluation of interference fit and bone damage of an uncemented femoral knee implant.

    Science.gov (United States)

    Berahmani, Sanaz; Hendriks, Maartje; de Jong, Joost J A; van den Bergh, Joop P W; Maal, Thomas; Janssen, Dennis; Verdonschot, Nico

    2018-01-01

    During implantation of an uncemented femoral knee implant, press-fit interference fit provides the primary stability. It is assumed that during implantation a combination of elastic and plastic deformation and abrasion of the bone will occur, but little is known about what happens at the bone-implant interface and how much press-fit interference fit is eventually achieved. Five cadaveric femora were prepared and implantation was performed by an experienced surgeon. Micro-CT- and conventional CT-scans were obtained pre- and post-implantation for geometrical measurements and to measure bone mineral density. Additionally, the position of the implant with respect to the bone was determined by optical scanning of the reconstructions. By measuring the differences in surface geometry, assessments were made of the cutting error, the actual interference fit, the amount of bone damage, and the effective interference fit. Our analysis showed an average cutting error of 0.67mm (SD 0.17mm), which pointed mostly towards bone under-resections. We found an average actual AP interference fit of 1.48mm (SD 0.27mm), which was close to the nominal value of 1.5mm. We observed combinations of bone damage and elastic deformation in all bone specimens, which showed a trend to be related with bone density. Higher bone density tended to lead to lower bone damage and higher elastic deformation. The results of the current study indicate different factors that interact while implanting an uncemented femoral knee component. This knowledge can be used to fine-tune design criteria of femoral components to achieve adequate primary stability for all patients. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Quantifying the effect of editor-author relations on manuscript handling times.

    Science.gov (United States)

    Sarigöl, Emre; Garcia, David; Scholtes, Ingo; Schweitzer, Frank

    2017-01-01

    In this article we study to what extent the academic peer review process is influenced by social relations between the authors of a manuscript and the editor handling the manuscript. Taking the open access journal PlosOne as a case study, our analysis is based on a data set of more than 100,000 articles published between 2007 and 2015. Using available data on handling editor, submission and acceptance time of manuscripts, we study the question whether co-authorship relations between authors and the handling editor affect the manuscript handling time , i.e. the time taken between the submission and acceptance of a manuscript. Our analysis reveals (1) that editors handle papers co-authored by previous collaborators significantly more often than expected at random, and (2) that such prior co-author relations are significantly related to faster manuscript handling. Addressing the question whether these shorter manuscript handling times can be explained by the quality of publications, we study the number of citations and downloads which accepted papers eventually accumulate. Moreover, we consider the influence of additional (social) factors, such as the editor's experience, the topical similarity between authors and editors, as well as reciprocal citation relations between authors and editors. Our findings show that, even when correcting for other factors like time, experience, and performance, prior co-authorship relations have a large and significant influence on manuscript handling times, speeding up the editorial decision on average by 19 days.

  4. Editors' Introduction: New Perspectives on 'The War-Prayer'

    Directory of Open Access Journals (Sweden)

    Shelley Fisher Fishkin

    2009-02-01

    Full Text Available "The War-Prayer," written a hundred years ago as Mark Twain reflected on the conditions surrounding the U.S. decision to embark on the imperialist venture known as the Philippine-American War, speaks to us across time in strikingly uncanny ways. Although today "The War-Prayer" is increasingly accessible to readers worldwide, this important piece by Mark Twain has never received the critical attention that it warrants. Neither has it occupied the place that it deserves in the Mark Twain canon, or in the American literary canon. In the years since its first publication in 1923, it has often been reprinted. But it rarely appears in anthologies of American literature, and it is among the least well-known works by Twain as far as the general public is concerned. Indeed, educated individuals are often startled and shocked when they are introduced to this piece, dumbfounded as to why they never encountered it before. A question worth pondering: How might American history and world history in the 20th century have been different if "The War-Prayer" had been as familiar to every high school student as Tom Sawyer? As editors of this international forum on "The War-Prayer" in Mark Twain Studies, we are pleased to be able to give this important work by Mark Twain some of the attention that it has long deserved.

  5. Consed: a graphical editor for next-generation sequencing.

    Science.gov (United States)

    Gordon, David; Green, Phil

    2013-11-15

    The rapid growth of DNA sequencing throughput in recent years implies that graphical interfaces for viewing and correcting errors must now handle large numbers of reads, efficiently pinpoint regions of interest and automate as many tasks as possible. We have adapted consed to reflect this. To allow full-feature editing of large datasets while keeping memory requirements low, we developed a viewer, bamScape, that reads billion-read BAM files, identifies and displays problem areas for user review and launches the consed graphical editor on user-selected regions, allowing, in addition to longstanding consed capabilities such as assembly editing, a variety of new features including direct editing of the reference sequence, variant and error detection, display of annotation tracks and the ability to simultaneously process a group of reads. Many batch processing capabilities have been added. The consed package is free to academic, government and non-profit users, and licensed to others for a fee by the University of Washington. The current version (26.0) is available for linux, macosx and solaris systems or as C++ source code. It includes a user's manual (with exercises) and example datasets. http://www.phrap.org/consed/consed.html dgordon@uw.edu .

  6. KISS for STRAP: user extensions for a protein alignment editor.

    Science.gov (United States)

    Gille, Christoph; Lorenzen, Stephan; Michalsky, Elke; Frömmel, Cornelius

    2003-12-12

    The Structural Alignment Program STRAP is a comfortable comprehensive editor and analyzing tool for protein alignments. A wide range of functions related to protein sequences and protein structures are accessible with an intuitive graphical interface. Recent features include mapping of mutations and polymorphisms onto structures and production of high quality figures for publication. Here we address the general problem of multi-purpose program packages to keep up with the rapid development of bioinformatical methods and the demand for specific program functions. STRAP was remade implementing a novel design which aims at Keeping Interfaces in STRAP Simple (KISS). KISS renders STRAP extendable to bio-scientists as well as to bio-informaticians. Scientists with basic computer skills are capable of implementing statistical methods or embedding existing bioinformatical tools in STRAP themselves. For bio-informaticians STRAP may serve as an environment for rapid prototyping and testing of complex algorithms such as automatic alignment algorithms or phylogenetic methods. Further, STRAP can be applied as an interactive web applet to present data related to a particular protein family and as a teaching tool. JAVA-1.4 or higher. http://www.charite.de/bioinf/strap/

  7. "Observation Obscurer" - Time Series Viewer, Editor and Processor

    Science.gov (United States)

    Andronov, I. L.

    The program is described, which contains a set of subroutines suitable for East viewing and interactive filtering and processing of regularly and irregularly spaced time series. Being a 32-bit DOS application, it may be used as a default fast viewer/editor of time series in any compute shell ("commander") or in Windows. It allows to view the data in the "time" or "phase" mode, to remove ("obscure") or filter outstanding bad points; to make scale transformations and smoothing using few methods (e.g. mean with phase binning, determination of the statistically opti- mal number of phase bins; "running parabola" (Andronov, 1997, As. Ap. Suppl, 125, 207) fit and to make time series analysis using some methods, e.g. correlation, autocorrelation and histogram analysis: determination of extrema etc. Some features have been developed specially for variable star observers, e.g. the barycentric correction, the creation and fast analysis of "OC" diagrams etc. The manual for "hot keys" is presented. The computer code was compiled with a 32-bit Free Pascal (www.freepascal.org).

  8. Varus femoral osteotomy improves sphericity of the femoral head in older children with severe form of Legg-Calvé-Perthes disease.

    Science.gov (United States)

    Terjesen, Terje; Wiig, Ola; Svenningsen, Svein

    2012-09-01

    In the Norwegian prospective study on Legg-Calvé-Perthes disease (LCPD), we found varus femoral osteotomy gave better femoral head sphericity at a mean of 5 years postoperative than physiotherapy in children older than 6.0 years at diagnosis with femoral head necrosis of more than 50%. That study did not include separate analyses for hips with 100% necrosis and those with a percentage of necrosis between 50% and 100%. We asked whether (1) femoral osteotomy improves femoral head sphericity at followup in all patients with more than 50% femoral head necrosis or in selected groups only and (2) there is a critical age between 6.0 and 10.0 years over which femoral osteotomy does not improve the prognosis. We treated 70 patients with unilateral LCPD, age at diagnosis of more than 6.0 years, and femoral head necrosis of more than 50% with varus femoral osteotomy between 1996 and 2000. We classified necrosis using the Catterall classification. We established a control group of 51 similar children who received physiotherapy. At the 5-year followup visit, the hips were graded according to femoral head shape: spherical, ovoid, or flat. At 5-year followup, there was no difference between the treatment groups in radiographic outcome in Catterall Group 3 hips. In Catterall Group 4 hips, femoral head sphericity was better in the osteotomy group, with flat femoral heads in 14% compared to 75% after physiotherapy. The same trend toward better head sphericity occurred when the lateral pillar classification was used. In children aged 6.0 to 10.0 years, in whom the whole femoral head is affected, femoral head sphericity 5 years after femoral osteotomy was better than that after physiotherapy.

  9. [Femoral artery pseudoaneurysms encountered in orthopedics and traumatology].

    Science.gov (United States)

    Raherinantenaina, F; Rajaonanahary, T M A; Rakoto Ratsimba, H N

    2015-12-01

    Most published articles regarding orthopedic- and trauma-related femoral artery pseudoaneurysms (FAPs) are case reports in English. Reported cases are often associated with a literature review but actually provide little robust data. We wanted to summarize the current knowledge on diagnostic and therapeutic features of these FAPs. A new case of superficial FAP is described followed by a review of the literature. A bibliographic search was performed online (PubMed, ScinceDirect) from 1964 to 2015 using the descriptors "traumatic femoral pseudoaneurysm, orthopedic surgery, osteochondroma". A total of 64 cases of FAPs was analyzed. There were 50 men with an average age of 40.72±26.45 years old. The most common clinical presentation was painful swelling (34%). Arteriography was the commonest radiological investigation used (63%). The main etiologies were orthopedic injuries (47%), surgery of the upper thigh (30%) and femoral osteochondromas (23%). Arterial injuries included superficial femoral (47%) and profunda femoris artery (50%). The treatment was open surgery (56%) or endovascular repair (36%). Deep femoral artery and its branches were embolized (47%) or ligated (38%). Endovascular stenting was performed in 30% of posttraumatic FAPs. All FAPs relating to osteochondromas were repaired surgically. Postoperative courses were uneventful in 95% of patients. Endovascular embolization is preferred in management of postsurgical FAPs which have usually involved the deep femoral artery. Endovascular stenting graft may be proposed for posttraumatic FAPs, for which the superficial femoral trunk is the most often involved vessel. Surgical repair should be performed when endovascular stenting graft is not feasible. Surgical repair is mandatory for all FAPs secondary to traumatic exostoses. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

  10. Structural and functional studies of bioobjects prepared from femoral heads

    Energy Technology Data Exchange (ETDEWEB)

    Kirilova, I. A., E-mail: IKirilova@niito.ru; Podorozhnaya, V. T., E-mail: VPodorognaya@niito.ru [Research Institute of Traumatology and Orthopedics n.a. Ya.L. Tsivyan, 17, Frunze, Novosibirsk, 630091 (Russian Federation); Sharkeev, Yu. P., E-mail: sharkeev@ispms.tsc.ru [Institute of Strength Physics and Materials Science SB RAS, 2/4, pr. Akademicheskii, Tomsk, 634021 (Russian Federation); National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk, 634050 (Russian Federation); Popova, K. S., E-mail: kseniya@ispms.tsc.ru; Uvarkin, P. V., E-mail: uvarkin@ispms.tsc.ru [Institute of Strength Physics and Materials Science SB RAS, 2/4, pr. Akademicheskii, Tomsk, 634021 (Russian Federation)

    2015-11-17

    Results of examination of physicomechanical characteristics of samples of medial femoral head cuts are presented. The samples of medial femoral head cuts resected in 6 patients with coxarthrosis in primary endoprosthetic replacement of a coxofemoral joint have been tested for micro- and nanohardness. Young’s modulus and elemental composition of bone tissue have been investigated. To estimate the architectonics of cancellous tissue of the femoral head, adjacent cuts of the same patient have been analyzed. The porosity of bone tissue was estimated from macroscopic images obtained using macrophotography. The total porosity is calculated as the ratio of the total length of straight line segments overlapping pores to the total length of secants. A three-point bending test of the samples has shown that their strength changed from 0.187 to 1.650 MPa and their elasticity modulus changes from 1.69 to 8.15 MPa. The microhardness of the samples changes in the range 220–265 MPa and the average microhardness of medial femoral head cuts is 240 MPa. The elemental composition of medial femoral head cuts is represented by basic Ca, P, O, Na and Mg elements as well as by Sn, S, Fe, Cr, and C in microamounts. The atomic Ca to P ratio for bone tissue is 1.55. It is revealed that pores of the upper part of the femoral head have a more regular shape and in the lower part they are more elongated along the cut and occupy a larger volume. The lower part of the femoral head has a higher porosity (39 and 33%) than the upper part (34 and 30%). The total porosity of all samples does not exceed 37%.

  11. Radiological assessment of the femoral bowing in Japanese population

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    Abdelaal Ahmed Hamed Kassem

    2016-01-01

    Full Text Available Introduction: Differences in the magnitude of bowing between races are well-known characteristics of the femur. Asian races have an increased magnitude of femoral bowing but most of the orthopedic implants designed for the femur do not match this exaggerated bowing. We calculated the sagittal and coronal femoral bowing in the Japanese population at different levels of the femur and addressed its surgical significance. Material and methods: We calculated the sagittal and coronal bowing of 132 Japanese femora using CT scan of the femur. A mathematical calculation of the radius of curvature at proximal, middle, and distal regions of the femur was used to determine the degree of femoral bowing. Results: Mean sagittal bowing of the femur was 581, 188, and 161 mm for the proximal, middle, and distal thirds of the femur and mean lateral bowing was 528, 5092, and 876 mm, respectively. Mean sagittal and coronal bowing for the whole femur was 175 and 2640 mm, respectively. No correlation was found between age, gender, length of femur, and the degree of bowing. Conclusion: Our study reveals that femoral bowing in the Japanese population is 175 mm in the sagittal plane and 2640 mm in the coronal plane; these values are greater than the femoral bowing in other ethnic groups studied in the literature. This may result in varying degrees of mismatch between the western-manufactured femoral intramedullary implants and the Japanese femur. We recommend that orthopedic surgeons to accurately perform preoperative evaluation of the femoral bowing to avoid potential malalignment, rotation, and abnormal stresses between the femur and implant.

  12. Fracturing of revision of a cobalt-chrome femoral head after fracturing of a ceramic femoral head, with diffuse metallosis. Case report

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    Pedro Miguel Dantas Costa Marques

    2013-04-01

    Full Text Available We presente a case of a fracture of a cobalt-chrome femoral head after revision of a hip total prosthesis with ceramic femoral head fracture. During surgery we found the cobalt-chrome femoral head fracture, wear of the polyethylene and massive metallosis in muscular and cartilaginous tissue. Both femoral stem and acetabular cup were stable and without apparent wearing. After surgical debridement, we promoted the substitution of the femoral head and the acetabular polyethylene by similar ones. After 12 months of follow-up, the patient has no pain complaints, function limit or systemic signs associated with malign metallosis

  13. Femoral shaft bowing in the coronal plane has more significant effect on the coronal alignment of TKA than proximal or distal variations of femoral shape.

    Science.gov (United States)

    Kim, Jong-Min; Hong, Soo-Heon; Kim, Jong-Min; Lee, Bum-Sik; Kim, Dong-Eun; Kim, Kyung-Ah; Bin, Seong-Il

    2015-07-01

    The aim of this study was to determine (1) variations in the shape of the proximal, middle, and distal femur in a series of Korean patients who had undergone total knee arthroplasty (TKA), (2) the preoperative relationship between these three parameters and the distal valgus cutting angle referenced off the femoral intramedullary guide, and (3) whether there was any relationship between femoral bowing and variations in the shape of the proximal or distal femur in the coronal plane. The preoperative long-standing anteroposterior radiographs of 316 consecutive osteoarthritis patients who underwent primary TKA from 2009 to 2011 were examined. The femoral neck shaft angle, the femoral shaft bowing angle, and the mechanical lateral distal femoral angle were measured to assess the shape of the proximal, middle, and distal femur, respectively. The valgus cutting angle of the femur was defined as the angle between the distal anatomical and mechanical axes of the femur. The study population showed large variations in femoral shape. The mean femoral intramedullary guide angle was 6.5° ± 1.3° (range: 4°-13°). The femoral shaft bowing angle was the factor that showed the strongest correlation with this angle (P shaft angle showed no correlation (n.s.). The femoral shaft bowing angle showed a weak correlation with the mechanical lateral distal femoral angle (P = 0.001), but was not significantly correlated with the femoral neck shaft angle (n.s.). Apparent femoral bowing (>3° of lateral or medial bowing) was found in 42 (13.3 %) of cases (37 cases of lateral bowing and five of medial bowing). Cases with lateral apparent femoral bowing >3° had a distal cutting angle of 8.6° ± 2.2° relative to the femoral intramedullary guide. The femoral intramedullary guide angle was mainly influenced by femoral shaft bowing among femoral deformities in the coronal plane. Therefore, to increase the accuracy of distal femoral cut during TKA, it is necessary to confirm femoral

  14. A biomechanical comparison of proximal femoral nails and locking proximal anatomic femoral plates in femoral fracture fixation A study on synthetic bones

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    Korhan Ozkan

    2015-01-01

    Conclusion: The proximal femoral intramedullary nail provides more stability and allows for earlier weight bearing than the locking plate when used for the treatment of unstable intertrochanteric fractures of the femur. Clinicians should be cautious for early weight bearing with locking plate for unstable intertrochanteric femur fractures.

  15. Morphometric analysis of rat femoral vessels under a video magnification system

    Directory of Open Access Journals (Sweden)

    Rui Sergio Monteiro de Barros

    Full Text Available Abstract The right femoral vessels of 80 rats were identified and dissected. External lengths and diameters of femoral arteries and femoral veins were measured using either a microscope or a video magnification system. Findings were correlated to animals’ weights. Mean length was 14.33 mm for both femoral arteries and femoral veins, mean diameter of arteries was 0.65 mm and diameter of veins was 0.81 mm. In our sample, rats’ body weights were only correlated with the diameter of their femoral veins.

  16. Trochanteric entry femoral nails yield better femoral version and lower revision rates-A large cohort multivariate regression analysis.

    Science.gov (United States)

    Yoon, Richard S; Gage, Mark J; Galos, David K; Donegan, Derek J; Liporace, Frank A

    2017-06-01

    Intramedullary nailing (IMN) has become the standard of care for the treatment of most femoral shaft fractures. Different IMN options include trochanteric and piriformis entry as well as retrograde nails, which may result in varying degrees of femoral rotation. The objective of this study was to analyze postoperative femoral version between three types of nails and to delineate any significant differences in femoral version (DFV) and revision rates. Over a 10-year period, 417 patients underwent IMN of a diaphyseal femur fracture (AO/OTA 32A-C). Of these patients, 316 met inclusion criteria and obtained postoperative computed tomography (CT) scanograms to calculate femoral version and were thus included in the study. In this study, our main outcome measure was the difference in femoral version (DFV) between the uninjured limb and the injured limb. The effect of the following variables on DFV and revision rates were determined via univariate, multivariate, and ordinal regression analyses: gender, age, BMI, ethnicity, mechanism of injury, operative side, open fracture, and table type/position. Statistical significance was set at pregression analysis revealed that a lower BMI was significantly associated with a lower DFV (p=0.006). Controlling for possible covariables, multivariate analysis yielded a significantly lower DFV for trochanteric entry nails than piriformis or retrograde nails (7.9±6.10 vs. 9.5±7.4 vs. 9.4±7.8°, pregression analysis. However, this is not to state that the other nail types exhibited abnormal DFV. Translation to the clinical impact of a few degrees of DFV is also unknown. Future studies to more in-depth study the intricacies of femoral version may lead to improved technology in addition to potentially improved clinical outcomes. Copyright © 2017 Elsevier Ltd. All rights reserved.

  17. Case report: AVN of the femoral head five year follow-up of the combination of ipsilateral femoral neck and sub-trochanteric fracture.

    Science.gov (United States)

    Zhang, Wei; Zhu, Feng; Dong, Hanqing; Xu, Yaozeng

    2016-04-01

    To our knowledge, the type of combination of ipsilateral femoral neck and sub-trochanteric fracture is rare. And the long term follow-up is seldom been reported. A 60 year old woman suffered from a traffic accident. We gave her the intramedullary nail treatment for the combination of ipsilateral femoral neck and sub-trochanteric fracture, and the fracture indeed cured after one year and there is no clue of necrosis of the femoral head, but after 5 years, there is an evidence of necrosis of the femoral head. Combination of ipsilateral femoral neck and sub-trochanteric fracture should be kept in mind. Patients with this unusual fracture should be kept under surveillance for longer than might be thought currently to be necessary for there is a possibility of necrosis of the femoral head, even a nondisplaced femoral neck fracture.

  18. Femoral neck radiography: effect of flexion on visualization

    International Nuclear Information System (INIS)

    Garry, S.C.; Jhangri, G.S.; Lambert, R.G.W.

    2005-01-01

    To determine whether flexion improves radiographic visualization of the femoral neck when the femur is externally rotated. Five human femora, with varying neck-shaft and anteversion angles, were measured and immobilized. Degree of flexion required to bring the femoral neck horizontal was measured, varying the rotation. Next, one bone was radiographed in 16 positions, varying rotation in 15 o and flexion in 10 o increments. Radiographs were presented in randomized blinded fashion to 15 staff radiologists for scoring of femoral neck visualization. Following this, all 5 bones were radiographed in 4 positions of rotation and at 0 o and 20 o flexion, and blinded randomized review of radiographs was repeated. Comparisons between angles and rotations were made using the Mann-Whitney test. The flexion angle required to bring the long axis of the femoral neck horizontal correlated directly with the degree of external rotation (ρ o internal rotation to 30 o external rotation (ρ o flexion was applied to bones in external rotation, visualization significantly improved at 15 o (ρ o (ρ o ) of flexion can significantly improve radiographic visualization. This manoeuvre could be useful for radiography of the femoral neck when initial radiographs are inadequate because of external rotation of the leg. (author)

  19. Avascular necrosis of the femoral head in HIV infected patients

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    Marcos Almeida Matos

    Full Text Available Avascular necrosis (AVN of the femoral head is an emerging complication in HIV infected patients. It has been suggested that the increased incidence of AVN in this population may be caused by an increased prevalence of predisposing factors for osteonecrosis, including protease inhibitors, hyperlipidemia, corticosteroid use, alcohol and intravenous drug abuse. The aim of this study was to assess the risk factors for avascular necrosis developing in the femoral head of HIV infected individuals. This study consisted of meta-analysis of the secondary data extracted from current literature. The selected articles allowed two study groups to be drawn up for comparison. Group 1 comprised 324 individuals infected by the HIV virus, who did not present femoral head AVN. Group 2 comprised 32 HIV positive patients, who presented femoral head AVN. The parameters used for analysis were as follows: age, gender, sexual preference, use of intravenous drugs, time of diagnosis, CD4+ cell count, use of antiretroviral agents and duration, serum cholesterol and serum triglycerides. The present study found a statistically significant association between hypertriglyceridemia, hypercholesterolemia, sexual preference and intravenous drug abuse. The authors concluded that femoral head osteonecrosis is associated with hyperlipidemia (hypercholesterolemia and hypertriglyceridemia and intravenous drug abuse. This study supports the hypothesis that protease inhibitors play a role in the development of osteonecrosis through a tendency to cause hyperlipidemia.

  20. Valgus Slipped Capital Femoral Epiphysis in Patient with Hypopituitarism

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    Yoshihiro Kotoura

    2017-01-01

    Full Text Available Slipped capital femoral epiphysis (SCFE is a common disease of adolescent and the epiphysis is positioned more posteromedially in relation to the femoral neck shaft with varus SCFE; however, posterolateral displacement of the capital epiphysis, valgus SCFE, occurs less frequently. We report a case of valgus SCFE in a 17-year-old boy with hypopituitarism. After falling down, he experienced difficulty in walking. The radiographs were inconclusive; however three-dimensional computed tomography images showed lateral displacement of the epiphysis on the right femoral head. Valgus SCFE was diagnosed. The patient underwent in situ pinning of both sides. In situ pinning on the left side was performed as a prophylactic pinning because of endocrine abnormalities. At the 1-year follow-up, he could walk without any difficulty and there were no signs of pain. The epiphysis is commonly positioned more posteromedially in relation to the femoral neck shaft with most SCFE, but, in this case, the epiphysis slipped laterally. Differential diagnosis included femoral neck fracture (Delbet-Colonna type 1; however, this was less likely due to the absence of other clinical signs. Therefore, we diagnosed the patient as SCFE. When children complain of leg pain and limp, valgus SCFE that may not be visualized on anteroposterior radiographs needs to be considered.

  1. Medium-term outcome in patients treated with total hip arthroplasty using a modular femoral stem.

    Science.gov (United States)

    Dagnino, Augusto; Grappiolo, Guido; Benazzo, Franco M; Learmonth, Ian D; Spotorno, Lorenzo; Portinaro, Nicola

    2012-01-01

    The clinical, radiographic and quality of life results of total hip arthroplasty using the MODULUS cementless modular femoral stem were reviewed. 48 patients who had a total hip arthroplasty using the MODULUS femoral stem were identified. Six had bilateral procedures, resulting in 60 hips with complete clinical and radiographic data. Mean age at implantation was 50 years (range 33 to 82). Mean follow-up was 59 months (range 50 months to 73). There were two early post-operative dislocations (within 2 days). One patient required further surgery to remove heterotopic bone. Mean Harris Hip Score increased from 37 points preoperatively (range, 7 to 66) to 89 points at final review (range, 65 to 100 points). Radiographic evaluation revealed that all implants were stable without evidence of osteolysis but three patients (5%) exhibited heterotopic ossification. Quality of life was evaluated with the SF36. The physical component increased from 29.2 points (range, 18.5 to 46.0) to 51.7 points (range 42.9 to 60.6) and the mental component from 375 points (range, 19.5 to 50.0) to 50 points (range 32,8 to 62.0).

  2. Clinical use of femoral artery hemostasis sticking after interventional procedure via femoral artery access

    International Nuclear Information System (INIS)

    Zhu Zhongsheng; Chen Shaoliang; Ye Fei; Zhang Junjie; Zhou Jie; Tian Nailiang; Lin Song; Liu Zhizhong; Xiao Pingxi; Qu Hong

    2010-01-01

    Objective: To observe the clinical effect of the use of femoral artery hemostasis sticking V+PAD after the interventional procedure via femoral artery access. Methods: By using random permutation list 80 patients, who decided to receive coronary angiography and percutaneous transluminal coronary angioplasty, were randomly selected. Of the 80 patients, hemostasis sticking V + PAD was employed in 40 patients with even numbers (trial group), only manual compression was adopted to stop bleeding in another 40 patients with odd numbers (control group). All the patients were informed about this trial and had to sign a consent letter. The pressure time, the treatment method of access site after hemostasis, the posture in bed, the immobilization time, the comfort degree of patients, the complications of access site prior to discharge, etc. were observed and the results were compared between two groups. Results: There was no significant difference between two groups as respect to age, gender ratios,activated clotting time (ACT) value and blood pressure. However, significantly difference in the compression time and bed rest time existed between the two groups. The compression time in trial group and control group was (7.9 ± 0.5) min and (19.8 ± 5.1) min respectively (P<0.01), while the bed rest time in trial group and control group was (6.1 ± 5.0) hours and (23.9 ± 0.2) hours respectively (P<0.01). All patients in trial group was supine in bed with the head side of the bed raised at 30 degree immediately after the procedure, and the head side of the bed was further raised to 90 degree one hour later. The puncture site was bandaged with conventional compression and immobilization was not employed. Patients could lie in bed with free posture and the patient's comfort degree was greatly improved. During hospitalization no complications related to puncture site occurred in all patients except one obese woman in trial group who developed pseudoaneurysm. Conclusion: Femoral

  3. Data Sharing: A New Editorial Initiative of the International Committee of Medical Journal Editors. Implications for the Editors´ Network.

    Science.gov (United States)

    Alfonso, Fernando; Adamyan, Karlen; Artigou, Jean-Yves; Aschermann, Michael; Boehm, Michael; Buendia, Alfonso; Chu, Pao-Hsien; Cohen, Ariel; Cas, Livio Dei; Dilic, Mirza; Doubell, Anton; Echeverri, Dario; Enç, Nuray; Ferreira-González, Ignacio; Filipiak, Krzysztof J; Flammer, Andreas; Fleck, Eckart; Gatzov, Plamen; Ginghina, Carmen; Goncalves, Lino; Haouala, Habib; Hassanein, Mahmoud; Heusch, Gerd; Huber, Kurt; Hulín, Ivan; Ivanusa, Mario; Krittayaphong, Rungroj; Lau, Chu-Pak; Marinskis, Germanas; Mach, François; Moreira, Luiz Felipe; Nieminen, Tuomo; Oukerraj, Latifa; Perings, Stefan; Pierard, Luc; Potpara, Tatjana; Reyes-Caorsi, Walter; Rim, Se-Joong; Rødevand, Olaf; Saade, Georges; Sander, Mikael; Shlyakhto, Evgeny; Timuralp, Bilgin; Tousoulis, Dimitris; Ural, Dilek; Piek, J J; Varga, Albert; Lüscher, Thomas F

    2017-05-01

    The International Committee of Medical Journal Editors (ICMJE) provides recommendations to improve the editorial standards and scientific quality of biomedical journals. These recommendations range from uniform technical requirements to more complex and elusive editorial issues including ethical aspects of the scientific process. Recently, registration of clinical trials, conflicts of interest disclosure, and new criteria for authorship - emphasizing the importance of responsibility and accountability-, have been proposed. Last year, a new editorial initiative to foster sharing of clinical trial data was launched. This review discusses this novel initiative with the aim of increasing awareness among readers, investigators, authors and editors belonging to the Editors´ Network of the European Society of Cardiology. Resumo O Comitê Internacional de Editores de Revistas Médicas (ICMJE) fornece recomendações para aprimorar o padrão editorial e a qualidade científica das revistas biomédicas. Tais recomendações variam desde requisitos técnicos de uniformização até assuntos editoriais mais complexos e elusivos, como os aspectos éticos do processo científico. Recentemente, foram propostos registro de ensaios clínicos, divulgação de conflitos de interesse e novos critérios de autoria, enfatizando a importância da responsabilidade e da responsabilização. No último ano, lançou-se uma nova iniciativa editorial para fomentar o compartilhamento dos dados de ensaios clínicos. Esta revisão discute essa nova iniciativa visando a aumentar a conscientização de leitores, investigadores, autores e editores filiados à Rede de Editores da Sociedade Europeia de Cardiologia.

  4. Editor's welcome, PORTAL, Vol. 6, No. 1, January 2009

    Directory of Open Access Journals (Sweden)

    Paul Allatson

    2009-08-01

    Full Text Available ‘The Space Between: Languages, Translations and Cultures’ is a special issue of PORTAL Journal of Multidisciplinary International Studies guest-edited by Vera Mackie (University of Melbourne, Ikuko Nakane (University of Melbourne, and Emi Otsuji (University of Technology, Sydney. As Vera Mackie and Stephanie Hemelryk Donald (University of Sydney say in the introduction to the special issue: All of the contributors to this special issue have reflected on the stakes involved in negotiating differences in language and culture. In their research and professional practice they inhabit the ‘space between’: the space between languages, the space between cultures, and the space between academic disciplines. While many of our contributors are located in the Australian university system, we also have contributors from outside that system, as well as contributors who are theorising disparate sites for the negotiation of difference. The most exciting aspect of the papers presented here is the ability to move between the spheres of cultural theory and the everyday. Analytical techniques originally developed for literary and cultural analysis are brought to bear on the texts and practices of everyday life. In addition to the critical essays, three cultural works also intervene in the discussion over what it means to inhabit the ‘space between’ languages, cultures and countries. The guest editors and the PORTAL editorial committee would like to acknowledge and thank the following institutions and individual for the support that made this special issue possible: the Australian Research Council’s Cultural Research Network; the former Institute for International Studies at the University of Technology, Sydney; the School of Historical Studies at the University of Melbourne; and the ARC Cultural Literacies Node Convener, Mark Gibson.

  5. Avogadro: an advanced semantic chemical editor, visualization, and analysis platform.

    Science.gov (United States)

    Hanwell, Marcus D; Curtis, Donald E; Lonie, David C; Vandermeersch, Tim; Zurek, Eva; Hutchison, Geoffrey R

    2012-08-13

    The Avogadro project has developed an advanced molecule editor and visualizer designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas. It offers flexible, high quality rendering, and a powerful plugin architecture. Typical uses include building molecular structures, formatting input files, and analyzing output of a wide variety of computational chemistry packages. By using the CML file format as its native document type, Avogadro seeks to enhance the semantic accessibility of chemical data types. The work presented here details the Avogadro library, which is a framework providing a code library and application programming interface (API) with three-dimensional visualization capabilities; and has direct applications to research and education in the fields of chemistry, physics, materials science, and biology. The Avogadro application provides a rich graphical interface using dynamically loaded plugins through the library itself. The application and library can each be extended by implementing a plugin module in C++ or Python to explore different visualization techniques, build/manipulate molecular structures, and interact with other programs. We describe some example extensions, one which uses a genetic algorithm to find stable crystal structures, and one which interfaces with the PackMol program to create packed, solvated structures for molecular dynamics simulations. The 1.0 release series of Avogadro is the main focus of the results discussed here. Avogadro offers a semantic chemical builder and platform for visualization and analysis. For users, it offers an easy-to-use builder, integrated support for downloading from common databases such as PubChem and the Protein Data Bank, extracting chemical data from a wide variety of formats, including computational chemistry output, and native, semantic support for the CML file format. For developers, it can be easily extended via a powerful

  6. Editor's welcome, PORTAL, Vol. 2, No. 1, January 2005

    Directory of Open Access Journals (Sweden)

    Paul Allatson

    2005-03-01

    Full Text Available This special issue of PORTAL Journal of Multidisciplinary International Studies, jointly edited by Jo McCormack and Paul Allatson, is dedicated to exile and social transformation. Some of the papers presented here derive from a highly successful workshop and symposium on exile held at the Institute for International Studies, University of Technology Sydney, in July and December 2004. Others arrived in response to a call for papers sent out in early 2004, which attracted a great deal of attention. We would like to thank all those involved at the first two events for their productive discussions and feedback, and extend our thanks to the many people who responded to the call for papers on the topic. The next issue of PORTAL will also be a special issue, “Strange Localities: Utopias, Intellectuals and National Identities in the 21st Century,” with three guest editors: Alistair Fox (University of Otago, Murray Pratt (University of Technology, Sydney, and Hilary Radner (University of Otago. And, as always, we would like to encourage practitioners of international studies and cultural producers working anywhere in the world, and in any of the PORTAL languages, to submit material for future issues. Finally, and returning to this issue’s special theme, it was with great sadness that we learned from one of the contributors to this issue, Sue Hajdú, of her father’s recent death. Sue’s critical and creative meditation on her father’s status as a Hungarian exile is one of this issue’s highlights. On behalf of the members of the Portal Editorial Committee, this special issue is dedicated to him. Paul Allatson, Chair, PORTAL Editorial Committee

  7. Editor's welcome, PORTAL, Vol. 3, No. 1, January 2006

    Directory of Open Access Journals (Sweden)

    Paul Allatson

    2006-02-01

    Full Text Available Welcome to the first appearance of PORTAL for 2006 (vol. 3, no. 1, a special issue entitled ‘Other Worlds’ guest edited by James Goodman and Christina Ho from the Faculty of Humanities and Social Sciences, University of Technology Sydney (UTS. The papers collected in this special issue focus on what the guest editors call “the transformative power of social movements” that respond to the processes and discourses of globalization and globalism by generating alternative sites and spaces of agency, or ‘other worlds.’ The contributors to the issue originally presented papers at a conference held in April 2005 in Sydney, with the title ‘Other Worlds: Social Movements and the Making of Alternatives.’ That conference was organized by the Research Initiative on International Activism at UTS, and supported by the Research Committee on Social Movements and Collective Action of the International Sociological Association. The Editorial Committee of PORTAL would like to thank both institutions for their support of the event that led to this special issue. I would also like to thank Wayne Peake, Kate Barclay, and Murray Pratt for their editorial efforts in seeing this issue through to publication. The Editorial Committee is pleased to showcase in the Cultural Works Section a short meditative piece by local writer Joel Scott, who is currently undertaking studies in Pamplona, Spain. When considered in the context of the special issue’s discussions of ‘other worlds’ that precede it, Scott’s ‘God, We’re Not Immigrants! A Reflection on Moving and Staying,’ provides an evocative insight into the sociocultural and imaginative limits that may preclude the construction of alternative ‘worlds.’

  8. Scientific style and format: the CSE manual for authors, editors, and publishers

    National Research Council Canada - National Science Library

    Council of Science Editors. Style Manual Committee

    2006-01-01

    Scientific style and format : the CSE manual for authors, editors, and publishers is a detailed and authoritative manual recommending both general and scientific publication style and format for scientific papers, journal...

  9. Adequacy of authors' replies to criticism raised in electronic letters to the editor: cohort study

    DEFF Research Database (Denmark)

    Gøtzsche, Peter C; Delamothe, Tony; Godlee, Fiona

    2010-01-01

    To investigate whether substantive criticism in electronic letters to the editor, defined as a problem that could invalidate the research or reduce its reliability, is adequately addressed by the authors....

  10. Special issues as criterion for journal quality evaluation: Letter to editor

    Directory of Open Access Journals (Sweden)

    Dadkhah Mehdi

    2015-01-01

    Full Text Available Predatory publishers are defined as publishers who have financial goals. This definition was introduced for the first time by Jeffrey Beall (2012. In some predatory publishers, we can find some papers that are not related to journal's aim and scope. These journals create special issues in order to publish papers that are not related to journal's aim and scope. Thus, we are faced with a question of how the editor of these journals could evaluate these papers. In some trusted journals, editor invites guest editors for special issues, which are related to journal's aim and scope. On the other hand predatory publishers, publish papers without any external reviewers or guest editors. In addition, some journals that publish irrelevant papers in regular issues are also found. This problem can be seen especially in some biological or life science journals. It seems that these problems pose new challenge for the academic world.

  11. A STUDY OF UNSTABLE INTERTROCHANTERIC FEMORAL FRACTURES TREATED BY TROCHANTERIC FEMORAL NAIL

    Directory of Open Access Journals (Sweden)

    Sreenivasa Neikar

    2017-11-01

    Full Text Available BACKGROUND Intertrochanteric fracture is one of the most common fracture of the hip especially in the elderly. The incidence of intertrochanteric fracture is rising because of the increase in number of elderly population along with superadded osteoporosis. MATERIALS AND METHODS Study included cases of unstable intertrochanteric fractures (AO and OTA Classification 31-A2 and 31-A3 fracture patterns that were operated with the short trochanteric femoral nail, which fitted into the inclusion criteria done in medical college hospital, Vijayanagara Institute of Medical Sciences, Bellary, from February 2015 to September 2016. RESULTS The age distribution was from 40 to 80 years. The largest group of patients were from 61 to 70 years. The average age was 60.5 years. The number of male patients in our series was 20 (66.7% and female was 10 (33.3%. Right side was affected in 11 cases (36.7% and left side in 19 cases (63.3%. Good reduction was achieved in 23 patients (76.7%. Acceptable reduction was achieved in 7 (23.3% patients due to severe comminution. In our study, 25 patients (83.33% had no complications. We encountered one intraoperative complication in the form of greater trochanter splintering, while inserting the nail. In our study, we encountered following postoperative complications. We noticed one case of delayed union, one case of Z effect and 2 cases of varus malunion. CONCLUSION We conclude that short trochanteric femoral nail provides good fixation for unstable intertrochanteric fractures if proper preoperative planning, good reduction and surgical technique are followed leading to high rate of bone union and minimal soft tissue damage especially for Asian patients with relatively small femora.

  12. A Case of Late Femoral Pseudoaneurysm Caused by Stent Disconnection

    International Nuclear Information System (INIS)

    Rivolta, Nicola; Fontana, Federico; Piffaretti, Gabriele; Tozzi, Matteo; Carrafiello, Gianpaolo

    2010-01-01

    We present the case of a late superficial femoral artery stent disconnection causing an asymptomatic pseudoaneurysm successfully treated with a stent-graft. A 67-year-old female was referred to our department for evaluation of claudication of the left lower limb and was diagnosed to have a total occlusion of the superficial femoral artery. Three nitinol stents were used to revascularize this artery. At 48 months, duplex-ultrasonography control revealed the presence of a 45-mm saccular femoral dilatation; X-rays and CT angiography showed fractures of the proximal stents and the presence of a pseudoaneurysm at the site of the distal stents disconnection. The pseudoaneurysm was excluded using two stent-grafts. We conclude that patients and surgeons should be aware of structural complications with all stents. Rigorous follow-up controls should be mandatory. Endovascular repair proved to be feasible and durable to manage a previous endovascular procedure.

  13. Femoral arteriographic finding in acute ergotism: Report of A Case

    Energy Technology Data Exchange (ETDEWEB)

    Rhee, H S; Lee, K N; Cha, S B [St. Mary' s Hospital, Catholic Medical College, Seoul (Korea, Republic of)

    1971-10-15

    A case of acute ergotism with angiographic demonstration of bilateral femoral artery involvement is reported. A 27-year-old married woman was admitted because of sudden onset of severe pain in both flanks and lower legs, followed by numbness and coldness of the skin on both legs. The attack occurred after the administration of ergot tartrate as postpartum care. Femoral arteriography was performed on 10th day of illness with the Seldinger technic. The femoral arteries were generally smaller in caliber than normal. There was no definite evidence of occlusive disease. Findings were more or less symmetrical and extended to lower legs where only fine branches were visualized. The final diagnosis was diffuse vasospasm due to acute ergotism with secondary occlusion of the arteries of lower leg bilaterally.

  14. Emergency Stenting of a Ruptured Infected Anastomotic Femoral Pseudoaneurysm

    International Nuclear Information System (INIS)

    Klonaris, Chris; Katsargyris, Athanasios; Matthaiou, Alexandros; Giannopoulos, Athanasios; Tsigris, Chris; Papadopouli, Katerina; Tsiodras, Sotiris; Bastounis, Elias

    2007-01-01

    A 74-year-old man presented with a ruptured infected anastomotic femoral pseudoaneurysm. Due to severe medical comorbidities he was considered unsuitable for conventional surgical management and underwent an emergency endovascular repair with a balloon-expandable covered stent. The pseudoaneurysm was excluded successfully and the patient had an uneventful postoperative recovery with long-term suppressive antimicrobials. He remained well for 10 months after the procedure with no signs of recurrent local or systemic infection and finally died from an acute myocardial infarction. To our knowledge, emergency endovascular treatment of a free ruptured bleeding femoral artery pseudoaneurysm has not been documented before in the English literature. This case illustrates that endovascular therapy may be a safe and efficient alternative in the emergent management of ruptured infected anastomotic femoral artery pseudoaneurysms when traditional open surgery is contraindicated

  15. Femoral arteriographic finding in acute ergotism: Report of A Case

    International Nuclear Information System (INIS)

    Rhee, H. S.; Lee, K. N.; Cha, S. B.

    1971-01-01

    A case of acute ergotism with angiographic demonstration of bilateral femoral artery involvement is reported. A 27-year-old married woman was admitted because of sudden onset of severe pain in both flanks and lower legs, followed by numbness and coldness of the skin on both legs. The attack occurred after the administration of ergot tartrate as postpartum care. Femoral arteriography was performed on 10th day of illness with the Seldinger technic. The femoral arteries were generally smaller in caliber than normal. There was no definite evidence of occlusive disease. Findings were more or less symmetrical and extended to lower legs where only fine branches were visualized. The final diagnosis was diffuse vasospasm due to acute ergotism with secondary occlusion of the arteries of lower leg bilaterally

  16. Avascular Necrosis of the Femoral Head: Are Any Genes Involved?

    Science.gov (United States)

    Pouya, Farzaneh; Kerachian, Mohammad Amin

    2015-01-01

    Avascular necrosis of the femoral head (ANFH) is a pathologic process that results from interruption of blood supply to the femur bone resulting in the death of bone cells and collapse of the femoral head. Nontraumatic ANFH continues to be a significant challenge to orthopedic surgeons. While the exact mechanisms remain elusive, many new insights have emerged from research in the last decade that has given us a clearer picture of the pathogenesis of nontraumatic ANFH. Progression to the end stage of ANFH appears to be related to five main mechanisms: hypercoagulable conditions, angiogenesis suppressions, hyperadipogenesis, heritable states, and switching the bone remodelling into bone resorption. Researchers have been examining the pathogenic mechanisms of ANFH but none of these theories have been firmly confirmed although some appear more plausible than the others. All of these factors can switch bone remodelling into bone resorption, which can further lead to ANFH progression ending up to femoral head collapse. PMID:26213697

  17. Assessment of femoral head perfusion by dynamic MR imaging

    International Nuclear Information System (INIS)

    Ochi, Ryuya; Nakano, Tetsuo; Miyazono, Kazuki; Tsurugami, Hiroshi; Fukuda, Tomohiro; Inaba, Daisuke; Takada, Koji

    2004-01-01

    We studied femoral head perfusion in 21 femoral neck fractures using dynamic MR imaging (MRI) between November 2001 and July 2002. MRI patterns divided into four groups when the results between the fractured side and unaffected side were compared. Femoral head perfusion at the fractured side was normal in Type A, about half in Type B, and absent in Type C. When perfusion at both the fractured side and unaffected side was absent, Exceptional Type was suspected. The Garden I group consisted of one Type B. The Garden II group consisted of one Type A, six Type B, one Type C, and two Exceptional Type. The Garden III group consisted of two Type B and one Type C, and the Garden IV group consisted of six Type C and one Exceptional Type. Post operations of by internal fixation confirmed the incidence of aseptic necrosis using MRI. (author)

  18. A micro-architectural evaluation of osteoporotic human femoral heads to guide implant placement in proximal femoral fractures.

    Science.gov (United States)

    Jenkins, Paul J; Ramaesh, Rishikesan; Pankaj, Pankaj; Patton, James T; Howie, Colin R; Goffin, Jérôme M; Merwe, Andrew van der; Wallace, Robert J; Porter, Daniel E; Simpson, A Hamish

    2013-10-01

    The micro-architecture of bone has been increasingly recognized as an important determinant of bone strength. Successful operative stabilization of fractures depends on bone strength. We evaluated the osseous micro-architecture and strength of the osteoporotic human femoral head. 6 femoral heads, obtained during arthroplasty surgery for femoral neck fracture, underwent micro-computed tomography (microCT) scanning at 30 μm, and bone volume ratio (BV/TV), trabecular thickness, structural model index, connection density, and degree of anisotropy for volumes of interest throughout the head were derived. A further 15 femoral heads underwent mechanical testing of compressive failure stress of cubes of trabecular bone from different regions of the head. The greatest density and trabecular thickness was found in the central core that extended from the medial calcar to the physeal scar. This region also correlated with the greatest degree of anisotropy and proportion of plate-like trabeculae. In the epiphyseal region, the trabeculae were organized radially from the physeal scar. The weakest area was found at the apex and peripheral areas of the head. The strongest region was at the center of the head. The center of the femoral head contained the strongest trabecular bone, with the thickest, most dense trabeculae. The apical region was weaker. From an anatomical and mechanical point of view, implants that achieve fixation in or below this central core may achieve the most stable fixation during fracture healing.

  19. Payments by US pharmaceutical and medical device manufacturers to US medical journal editors: retrospective observational study

    Science.gov (United States)

    Bell, Chaim M; Matelski, John J; Detsky, Allan S; Cram, Peter

    2017-01-01

    Objective To estimate financial payments from industry to US journal editors. Design Retrospective observational study. Setting 52 influential (high impact factor for their specialty) US medical journals from 26 specialties and US Open Payments database, 2014. Participants 713 editors at the associate level and above identified from each journal’s online masthead. Main outcome measures All general payments (eg, personal income) and research related payments from pharmaceutical and medical device manufacturers to eligible physicians in 2014. Percentages of editors receiving payments and the magnitude of such payments were compared across journals and by specialty. Journal websites were also reviewed to determine if conflict of interest policies for editors were readily accessible. Results Of 713 eligible editors, 361 (50.6%) received some (>$0) general payments in 2014, and 139 (19.5%) received research payments. The median general payment was $11 (£8; €9) (interquartile range $0-2923) and the median research payment was $0 ($0-0). The mean general payment was $28 136 (SD $415 045), and the mean research payment was $37 963 (SD $175 239). The highest median general payments were received by journal editors from endocrinology ($7207, $0-85 816), cardiology ($2664, $0-12 912), gastroenterology ($696, $0-20 002), rheumatology ($515, $0-14 280), and urology ($480, $90-669). For high impact general medicine journals, median payments were $0 ($0-14). A review of the 52 journal websites revealed that editor conflict of interest policies were readily accessible (ie, within five minutes) for 17/52 (32.7%) of journals. Conclusions Industry payments to journal editors are common and often large, particularly for certain subspecialties. Journals should consider the potential impact of such payments on public trust in published research. PMID:29074628

  20. Artificial intelligence in peer review: How can evolutionary computation support journal editors?

    OpenAIRE

    Mrowinski, Maciej J.; Fronczak, Piotr; Fronczak, Agata; Ausloos, Marcel; Nedic, Olgica

    2017-01-01

    With the volume of manuscripts submitted for publication growing every year, the deficiencies of peer review (e.g. long review times) are becoming more apparent. Editorial strategies, sets of guidelines designed to speed up the process and reduce editors' workloads, are treated as trade secrets by publishing houses and are not shared publicly. To improve the effectiveness of their strategies, editors in small publishing groups are faced with undertaking an iterative trial-and-error approach. ...

  1. An Interview with Masoud Yazdani, editor of London-based Intellect Books

    Directory of Open Access Journals (Sweden)

    Sean Scanlan

    2014-03-01

    Full Text Available Sean Scanlan conducted an email interview with Masoud Yazdani, the editor of Intellect Books, an independent academic publisher in the fields of creative practice and popular culture, whose aim is to publish scholarly books and journals that provide a vital space for widening critical debate in new and emerging subjects. An Interview with Masoud Yazdani, editor of London-based Intellect Books by Sean Scanlan.

  2. Life and times of the impact factor: retrospective analysis of trends for seven medical journals (1994-2005) and their Editors' views

    Science.gov (United States)

    Chew, Mabel; Villanueva, Elmer V; Van Der Weyden, Martin B

    2007-01-01

    Objective (1) To analyse trends in the journal impact factor (IF) of seven general medical journals (Ann Intern Med, BMJ, CMAJ, JAMA, Lancet, Med J Aust and N Engl J Med) over 12 years; and (2) to ascertain the views of these journals' past and present Editors on factors that had affected their journals' IFs during their tenure, including direct editorial policies. Design Retrospective analysis of IF data from ISI Web of Knowledge Journal Citation Reports—Science Edition, 1994 to 2005, and interviews with Editors-in-Chief. Setting Medical journal publishing. Participants Ten Editors-in-Chief of the journals, except Med J Aust, who served between 1999 and 2004. Main outcome measures IFs and component numerator and denominator data for the seven general medical journals (1994 to 2005) were collected. IFs are calculated using the formula: (Citations in year z to articles published in years x and y)/(Number of citable articles published in years x and y), where z is the current year and x and y are the previous two years. Editors' views on factors that had affected their journals' IFs were also obtained. Results IFs generally rose over the 12-year period, with the N Engl J Med having the highest IF throughout. However, percentage rises in IF relative to the baseline year of 1994 were greatest for CMAJ (about 500%) and JAMA (260%). Numerators for most journals tended to rise over this period, while denominators tended to be stable or to fall, although not always in a linear fashion. Nine of ten eligible editors were interviewed. Possible reasons given for rises in citation counts included: active recruitment of high-impact articles by courting researchers; offering authors better services; boosting the journal's media profile; more careful article selection; and increases in article citations. Most felt that going online had not affected citations. Most had no deliberate policy to publish fewer articles (lowering the IF denominator), which was sometimes the unintended

  3. Life and times of the impact factor: retrospective analysis of trends for seven medical journals (1994-2005) and their Editors' views.

    Science.gov (United States)

    Chew, Mabel; Villanueva, Elmer V; Van Der Weyden, Martin B

    2007-03-01

    (1) To analyse trends in the journal impact factor (IF) of seven general medical journals (Ann Intern Med, BMJ, CMAJ, JAMA, Lancet, Med J Aust and N Engl J Med) over 12 years; and (2) to ascertain the views of these journals' past and present Editors on factors that had affected their journals' IFs during their tenure, including direct editorial policies. Retrospective analysis of IF data from ISI Web of Knowledge Journal Citation Reports-Science Edition, 1994 to 2005, and interviews with Editors-in-Chief. Medical journal publishing. Ten Editors-in-Chief of the journals, except Med J Aust, who served between 1999 and 2004. MAIN OUTCOME MEASURES IFs and component numerator and denominator data for the seven general medical journals (1994 to 2005) were collected. IFs are calculated using the formula: (Citations in year z to articles published in years x and y)/(Number of citable articles published in years x and y), where z is the current year and x and y are the previous two years. Editors' views on factors that had affected their journals' IFs were also obtained. IFs generally rose over the 12-year period, with the N Engl J Med having the highest IF throughout. However, percentage rises in IF relative to the baseline year of 1994 were greatest for CMAJ (about 500%) and JAMA (260%). Numerators for most journals tended to rise over this period, while denominators tended to be stable or to fall, although not always in a linear fashion. Nine of ten eligible editors were interviewed. Possible reasons given for rises in citation counts included: active recruitment of high-impact articles by courting researchers; offering authors better services; boosting the journal's media profile; more careful article selection; and increases in article citations. Most felt that going online had not affected citations. Most had no deliberate policy to publish fewer articles (lowering the IF denominator), which was sometimes the unintended result of other editorial policies. The two

  4. Subchondral bone density distribution in the human femoral head

    Energy Technology Data Exchange (ETDEWEB)

    Wright, David A.; Meguid, Michael; Lubovsky, Omri; Whyne, Cari M. [Sunnybrook Research Institute, Orthopaedic Biomechanics Laboratory, Toronto, Ontario (Canada)

    2012-06-15

    This study aims to quantitatively characterize the distribution of subchondral bone density across the human femoral head using a computed tomography derived measurement of bone density and a common reference coordinate system. Femoral head surfaces were created bilaterally for 30 patients (14 males, 16 females, mean age 67.2 years) through semi-automatic segmentation of reconstructed CT data and used to map bone density, by shrinking them into the subchondral bone and averaging the greyscale values (linearly related to bone density) within 5 mm of the articular surface. Density maps were then oriented with the center of the head at the origin, the femoral mechanical axis (FMA) aligned with the vertical, and the posterior condylar axis (PCA) aligned with the horizontal. Twelve regions were created by dividing the density maps into three concentric rings at increments of 30 from the horizontal, then splitting into four quadrants along the anterior-posterior and medial-lateral axes. Mean values for each region were compared using repeated measures ANOVA and a Bonferroni post hoc test, and side-to-side correlations were analyzed using a Pearson's correlation. The regions representing the medial side of the femoral head's superior portion were found to have significantly higher densities compared to other regions (p < 0.05). Significant side-to-side correlations were found for all regions (r {sup 2} = 0.81 to r {sup 2} = 0.16), with strong correlations for the highest density regions. Side-to-side differences in measured bone density were seen for two regions in the anterio-lateral portion of the femoral head (p < 0.05). The high correlation found between the left and right sides indicates that this tool may be useful for understanding 'normal' density patterns in hips affected by unilateral pathologies such as avascular necrosis, fracture, developmental dysplasia of the hip, Perthes disease, and slipped capital femoral head epiphysis. (orig.)

  5. Image features of herniation pit of the femoral neck

    International Nuclear Information System (INIS)

    Zhang Xuezhe; Li Guangming; Wang Cunli; Wang Guimin

    2008-01-01

    Objective: To evaluate imaging appearances of herniation pit of the femoral neck. Methods: We retrospectively analyzed the X-ray, CT and MRI findings of 9 patients with herniation pit of the femoral neck. All nine patients were male with the age ranging from 21 to 73 years. They had pain in the hip from two months to two years duration. Results: The bilateral hips were affected in six patients, the right hips in the other 3 patients. Of the nine patients, X-ray plain films (2 cases), CT scanning(6 cases), and MR scanning (5 cases ) were performed. The size of the lesions ranged from 0.5 cm x 0.6 cm to 1.0 cm x 1.5 cm, located in the anterosuperior portion of the femoral neck (n=7) or anteroinferior portion (n=2). X-ray plain films showed an osteolytic lesion surrounded by a sclerotic rim. CT scanning showed the lesion just below the cortex of the femoral neck surrounded by a rim of sclerosis or associated with a small cortical break in two patients. MR scanning showed low signal intensity in five patients on T 1 WI and high signal intensity surrounded by a rim of low signal intensity (n=3) or low signal intensity (n=2) on T 2 WI, and high signal intensity on fat suppression MR image. A small joint effusion was observed in two cases on T 2 WI. Conclusion: The CT and MRI findings of herniation pit of the femoral neck are characteristic, it is useful in defining the diagnosis of the herniation pit of the femoral neck. (authors)

  6. Biophysical stimulation in osteonecrosis of the femoral head

    Directory of Open Access Journals (Sweden)

    Massari Leo

    2009-01-01

    Full Text Available Osteonecrosis of the femoral head is the endpoint of a disease process that results from insufficient blood flow and bone-tissue necrosis, leading to joint instability, collapse of the femoral head, arthritis of the joint, and total hip replacement. Pain is the most frequent clinical symptom. Both bone tissue and cartilage suffer when osteonecrosis of the femoral head develops. Stimulation with pulsed electromagnetic fields (PEMFs has been shown to be useful for enhancing bone repair and for exerting a chondroprotective effect on articular cartilage. Two Italian studies on the treatment of avascular necrosis of the femoral head with PEMFs were presented in this review. In the first study, 68 patients suffering from avascular necrosis of the femoral head were treated with PEMFs in combination with core decompression and autologous bone grafts. The second one is a retrospective analysis of the results of treatment with PEMFs of 76 hips in 66 patients with osteonecrosis of the femoral head. In both studies clinical information and diagnostic imaging were collected at the beginning of the treatment and at the time of follow up. Statistical analysis was performed using chi-square test. Both authors hypothesize that the short-term effect of PEMF stimulation may be to protect the articular cartilage from the catabolic effect of inflammation and subchondral bone-marrow edema. The long-term effect of PEMF stimulation may be to promote osteogenic activity at the necrotic area and prevent trabecular fracture and subchondral bone collapse. PEMF stimulation represents an important therapeutic opportunity to resolve the Ficat stage-I or II disease or at least to delay the time until joint replacement becomes necessary.

  7. Report of the world association of medical editors: agenda for the future.

    Science.gov (United States)

    2001-04-01

    During a 3-day meeting at Bellagio in January 2001, a group of 20 editors from 12 countries in 5 continents met to map out a strategy for the World Association of Medical Editors (WAME)'s continued development in the service of medical editors over the next several years. The group: 1) Developed a statement of principles on the standards of professionalism and responsibilities of editors (this statement will be posted on the Web site after electronic consultation with and comment by WAME editors); 2) Agreed to assess the extent to which these principles are reflected in practice and to explore barriers to their adoption, using data from a survey and focus groups; 3) Developed and outlined an on-line program for distance learning, targeted at new editors; 4) Planned for formal evaluation of the educational outreach program; and 5) Agreed to support regional initiatives to strengthen local editorial capacity. Underpinning all past and proposed future activities is the WAME Web site. The ambitious plans outlined above will require extensive development of the site, plans for which were made at the Bellagio meeting.

  8. Bipolar hip arthroplasty for avascular necrosis of femoral head in young adults

    Science.gov (United States)

    Dudani, Baldev; Shyam, Ashok K; Arora, Pankush; Veigus, Arjun

    2015-01-01

    Background: Bipolar hip arthroplasty (BHA) is one of the options for treatment of avascular necrosis (AVN) of the femoral head. Acetabular erosion and groin pain are the most allowing for gross motion between the common complications. We propose that these complications are secondary to improper acetabular preparation allowing for motion between the BHA head and the acetabulum. Materials and Methods: The current study retrospectively evaluated patients’records from case files and also called them for clinical and radiological followup. 96 hips with AVN of the femoral head treated with BHA were included in the study. All patients were males with a mean age of 42 years (range 30-59 years). In all cases, the acetabulum was gently reamed till it became uniformly concentric to achieve tight fitting trial cup. Clinical followup using Harris hip score (HHS) and radiological study for cup migration were done at followup. Results: The mean followup was 7.52 years (range 4-16 years). The HHS significantly improved from a preoperative value of 39.3 (range, 54-30) to a postoperative value of 89.12 (range 74-96). According to HHS grades, the final outcome was excellent in 52 hips, good in 28 and fair in 16 hips. Hip and groin pain was reported in four hips (5%), but did not limit activity. Subsidence (less than 5 mm) of the femoral component was seen in 8 cases. Subgroup analysis showed patients with Ficat Stage 3 having better range of motion, but similar HHS as compared to Ficat Stage 4 patients. Conclusion: Bipolar hip arthroplasty (BHA) using tight fitting cup and acetabular reaming in AVN hip has a low incidence of groin pain, acetabular erosion and revision in midterm followup. Good outcome and mid term survival can be achieved irrespective of the Ficat Stage. PMID:26015634

  9. Stress fracture of the femoral neck in a child (stress fracture)

    International Nuclear Information System (INIS)

    Coldwell, D.; Gross, G.W.; Boal, D.K.

    1984-01-01

    Femoral neck stress fracture is extremely rare in childhood. We report a case of femoral neck stress fracture in an 11-year-old girl. Differentials diagnosis and a brief review of the literature follow. (orig.)

  10. The treatment of nonisthmal femoral shaft nonunions with im nail exchange versus augmentation plating.

    Science.gov (United States)

    Park, Jin; Kim, Sul Gee; Yoon, Han Kook; Yang, Kyu Hyun

    2010-02-01

    The purpose of this study was to compare the results between exchange nailing (EN) and augmentation plating (AP) with a nail left in situ for nonisthmal femoral shaft nonunion after femoral nailing. : Retrospective data analysis, November 1996-March 2006. A level I trauma center. Eighteen patients with 18 nonisthmal femoral nonunions. Seven patients with 7 fractures treated for nonisthmal femoral shaft nonunions after femoral nailing with EN and 11 patients with 11 fractures treated for nonisthmal femoral shaft nonunions after nailing with AP combined with bone grafting. Union and complications. Five nonunions in the EN group failed to achieve union (72% failure rate), whereas all 11 pseudarthroses in the AP group obtained osseous union. Fisher exact test showed a higher nonunion rate of EN compared with AP for nonisthmal femoral shaft nonunion (odds ratio, 6.5; P = 0.002). AP with autogenous bone grafting may be a better option than EN for nonisthmal femoral nonunions.

  11. Automatic quantification of tibio-femoral contact area and congruity

    DEFF Research Database (Denmark)

    Tummala, Sudhakar; Nielsen, Mads; Lillholm, Martin

    2012-01-01

    We present methods to quantify the medial tibio- femoral (MTF) joint contact area (CA) and congruity index (CI) from low-field magnetic resonance imaging (MRI). Firstly, based on the segmented MTF cartilage compartments, we computed the contact area using the Euclidian distance transformation....... The CA was defined as the area of the tibial superior surface and the femoral inferior surface that are less than a voxel width apart. Furthermore, the CI is computed point-by-point by assessing the first- and second-order general surface features over the contact area. Mathematically, it is the inverse...

  12. Morfología femoral proximal en fracturas de cadera

    OpenAIRE

    Calvo de Mora Rebollo, María Jesús; Albareda Albareda, Jorge Cruz; Seral García, Belén; Martín Ruiz, G.; Lasierra Sanromán, José Manuel; Seral Iñigo, Fernando

    2003-01-01

    Es frecuente observar como pacientes que han sufrido una fractura de cadera, si se fracturan posteriormente la cadera contralateral, es del mismo tipo que la primera fractura. El objetivo de este trabajo es tratar de relacional la morfología femoral proximal con la producción de un tipo determinado de fractura. Para ello hemos realizado un estudio prospectivo en 50 pacientes mayores de 65 años, sin distinción de sexo, que han ingresado en nuestro servicio por fractura femoral proximal, 25 ...

  13. Repair of femoral trochanteric osteotomy in the dog

    International Nuclear Information System (INIS)

    Whitelock, R.G.; Dyce, J.; Houlton, J.E.F.

    1997-01-01

    The records and radiographs of 24 dogs that underwent femoral trochanteric osteotomy repair were reviewed. Osteotomy repair was performed with either a pin and tension band wire or a lag screw technique. Significant clinical complications associated with the osteotomy were identified in one dog (4 per cent) six weeks after surgery, although abnormal radiographic changes were evident in 15 dogs (62 per cent). The method of repair did not influence healing and there were comparable radiographic complication rates. It is concluded that femoral trochanteric osteotomy is not associated with significant clinical problems, despite a high incidence of abnormal radiographic findings

  14. [SURGICAL HIP DISLOCATION APPROACH FOR TREATMENT OF FEMORAL HEAD FRACTURE].

    Science.gov (United States)

    Tang, Yanfeng; Liu, Youwen; Zhu, Yingjie; Li, Jianming; Li, Wuyin; Li, Qiyi; Jia, Yudong

    2015-11-01

    To discuss the value of surgical hip dislocation approach in the treatment of femoral head fracture. A retrospectively analysis was made on the clinical data of 15 patients with femoral head fractures treated through surgical hip dislocation approach between January 2010 and February 2013. There were 11 men and 4 women with an average age of 30.8 years (range, 15-63 years). The causes included traffic accident injury in 9 cases, falling injury from height in 5 cases, and sports injury in 1 case. According to Pipkin typing, 2 cases were rated as type I, 7 cases as type II, 1 case as type III, and 5 cases as type IV. The interval of injury and operation was 2-10 days (mean, 4.1 days). Reduction was performed in 10 patients within 6 hours after injury, and then bone traction was given for 4-6 weeks except 5 patients who received reduction in the other hospital. Primary healing of incision was obtained in all patients after surgery without complications of dislocation and lower limbs deep venous thrombosis. The mean follow-up time was 29.9 months (range, 25-36 months). During follow-up, there was no infection, breakage of internal fixation, or nonunion of femoral greater trochanter fracture. In 3 patients having necrosis of the femoral head, 2 had no obvious symptoms [staging as IIa and IIb respectively according to Association Research Circulation Osseous (ARCO) staging system], and 1 (stage IIIb) had nonunion of the femoral neck fracture, who underwent total hip arthroplasty (THA). In 4 patients having myositis ossificans (2 cases of grade I, 1 case of grade II, and 1 case of grade III based on Brooker grading), no treatment was given in 3 cases and the focus was removed during THA in 1 case. According to the Thompson-Epstein scale at last follow-up, the results were excellent in 9 cases, good in 3 cases, fair in 1 case, and poor in 2 cases, and the excellent and good rate was 80%. Surgical hip dislocation approach can not only protect the residual vessels of the

  15. Medial circumflex femoral artery flap for ischial pressure sore

    Directory of Open Access Journals (Sweden)

    Palanivelu S

    2009-01-01

    Full Text Available A new axial pattern flap based on the terminal branches of the medial circumflex femoral artery is described for coverage of ischial pressure sore. Based on the terminal branches of the transverse branch of medial circumflex femoral artery, which exit through the gap between the quadratus femoris muscle above and the upper border of adductor magnus muscle below, this fascio cutaneous flap is much smaller than the posterior thigh flap but extremely useful to cover ischeal pressure sores. The skin redundancy below the gluteal fold allows a primary closure of the donor defect. It can also be used in combination with biceps femoris muscle flap.

  16. Case of slipped capital femoral epiphysis following radiation

    Energy Technology Data Exchange (ETDEWEB)

    Terada, Hiroshi; Usui, Hiroshi; Nakamura, Yutaka; Chiba, Masahiro; Yamaji, Shushin; Oba, Yoshihiro

    1987-06-01

    A 12-year-old boy presented with pain of the right hip joint and claudication. At the age of 7 months, the patient had received prophylactic irradiation of 30 Gy to the pelvic area including lumbar vertebrae and bilateral hip joints following extirpation of the right undescended testicle for embryonal carcinoma. Roentgenograph showed slipped capial femoral epiphysis. A review of the literature suggests that bone growth and hormonal changes in the early stage of puberty are involved, in addition to radiation damaged epiphyseal cartilage, in the pathophysiologic mechanisms of radiation induced slipped capital femoral epiphysis. (Namekawa, K.).

  17. Can femoral dialysis catheter insertion cause a life threatening complication?

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    Nurkay Katrancıoğlu

    2014-09-01

    Full Text Available Venous catheter (VC insertion may be necessary for the patients with renal failure facing vascular access problem. Femoral VCs are commonly used for their lower complication rates especially in emergency clinics. The incidence of bleeding associated with VC is reported 0.5-1.6%, however, life threatening hemorrhage and complications requiring surgical intervention are very rare. In this manuscript, we aimed to present a case with hemolytic uremic syndrome complicated with retroperitoneal hematoma after femoral VC insertion. J Clin Exp Invest 2014; 5 (3: 472-474

  18. Postoperative hemoglobin level in patients with femoral neck fracture

    OpenAIRE

    Nagra, Navraj; van Popta, Dmitri; Whiteside, Sigrid; Holt, Edward

    2018-01-01

    Objective: The aim of this study was to analyze the changes of hemoglobin levels in patients undergoing fixation for femoral neck fracture.Methods: Peroperative hemoglobin levels of patients who underwent either dynamic hip screw (DHS) fixation (n=74; mean age: 80 years) or hip hemiarthroplasty (n=104; mean age: 84 years) for femoral neck fracture was monitored.Results: There was a statistically and clinically significant mean drop of 31.1 g/L between the preoperative (D0) and postoperative D...

  19. Identification of avascular necrosis in the dysplastic proximal femoral epiphysis

    International Nuclear Information System (INIS)

    Mandell, G.A.; Harcke, H.T.; MacKenzie, W.G.; Bassett, G.S.; Scott, C.I. Jr.; Wills, J.S.

    1989-01-01

    Bilateral radiographic irregularities and deformities of the proximal femoral epiphyses are features of both multiple epiphyseal dysplasia and bilateral idiopathic avascular necrosis. In the past these entities have been difficult to differentiate. This report documents radiographically the occurrence of avascular necrosis in 10 patients with multiple epiphyseal dysplasia by recognizing the superimposition of sclerosis and subchondral fissuring on pre-existing symmetrically irregular proximal femoral ossification centers. Scintigraphic (photopenia) or magnetic resonance (loss of signal) criteria of avascular necrosis confirm its added presence and help to establish an imaging scheme to identify avascular necrosis superimposed on multiple epiphyseal dysplasia. (orig.)

  20. Avascular necrosis associated with nailing of femoral neck fracture

    International Nuclear Information System (INIS)

    Stroemqvist, B.; Hansson, L.I.

    1983-01-01

    Two patients with femoral neck fractures, one displaced and one undisplaced, are presented. Preoperative intravital staining with tetracycline and Tc-MDP scintimetry both showed intact femoral head circulation while Tc-MDP-scintimetry 1 week after operation showed pronounced circulatory deficiency. SR 85 -scintimetry performed at the same time was inconclusive. Segmental collapse was observed radiographically, 8 and 12 months postoperatively. The major vascular injury resulting in avascularity most probably occured during the procedure of osteosynthesis, and Tc-MDP-scintimetry was found suitable for early postoperative recognition of avascular necrosis in both fractures. (author)