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Sample records for capital femoral epiphysis

  1. Analysis of slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    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

  2. MR imaging in slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    This paper reports that conventional determination of the degree of epiphyseal slipping is not exact. Radiography and CT provide no information about the growth plate, joint effusion, or possible epiphyseal reattachment. Ten patients with slipped capital femoral epiphysis were examined in both hip joints by means of frontal T1-weighted and opposed long TR gradient-echo (GRE) sequences and parasagittal T1-weighted images along the femoral neck. Normal measurements were established in 12 healthy adolescents. The authors imaged in various positions and different parasagittal angles to rule out errors due to positioning. Exact determination of the epipyseal angle was enabled by drawing a ventral tangent to the femoral neck. The average MR imaging angle was 40.3 degrees in epiphyseolysis and 66.0 degrees on the unaffected side. Healthy male juveniles reached 77.9 degrees at age 13-17 years and 69.9 degrees at age 5-9 years. Conventional measurements on Lauenstein projection gave measurements of 55.6 degrees for epiphyseolysis and 85.7 degrees on the unaffected side. Errors due to positioning are lower than 4 degrees

  3. Eosinophilic granuloma of the capital femoral epiphysis.

    Science.gov (United States)

    Goto, Takahiro; Nemoto, Tetsuo; Ogura, Koichi; Imanishi, Jungo; Hozumi, Takahiro; Funata, Nobuaki

    2011-05-01

    Eosinophilic granuloma occurs almost exclusively in the diaphysis or metaphysis, when tubular bones are affected. The investigators present an extremely rare case of eosinophilic granuloma arising at the epiphysis of the femoral head in an 8-year-old boy. Plain radiographs and computed tomography showed a well-circumscribed radiolucent lesion, suggesting chondroblastoma or Brodie's abscess. However, the findings on magnetic resonance images were different from typical features of chondroblastoma or Brodie's abscess. The lesion was curetted. Histological diagnosis was eosinophilic granuloma. Differential diagnoses of a radiolucent lesion at the epiphysis in a child should include, though quite rare, eosinophilic granuloma.

  4. Progressive slippage after pinning for slipped capital femoral epiphysis.

    Science.gov (United States)

    Sanders, James O; Smith, William J; Stanley, Earl A; Bueche, Matthew J; Karol, Lori A; Chambers, Henry G

    2002-01-01

    The authors retrospectively reviewed seven cases of progressive slipped capital femoral epiphysis after screw fixation. All seven patients initially presented with chronic symptoms, and five had an acute exacerbation of symptoms with the appearance of an acute-on-chronic slip. Of the other two, one had obvious motion at the proximal femoral physis and the other had increased symptoms but did not have an obvious acute slip radiographically. All underwent percutaneous screw fixation. In four patients a single screw was placed, and in three patients two screws were placed. No patient became symptom-free after surgery. Slip progression was noted on average 5 months after treatment. Radiographs in all patients revealed an increase in slip severity and loss of screw purchase in the femoral neck while fixation in the proximal femoral epiphysis remained secure. One patient had hypothyroidism and another Cushing disease, both diagnosed after the slipped epiphysis. Slips occurring in children with underlying endocrinopathies, and unstable slips in children with a history of antecedent knee or hip pain (commonly called an acute-on-chronic slip) may be susceptible to screw fixation failure. In such patients, close radiographic follow-up, particularly in the presence of continued symptoms, is required to document slip progression and fixation failure as soon as possible.

  5. Prophylactic pinning for slipped capital femoral epiphysis: does it affect proximal femoral morphology?

    Science.gov (United States)

    Cousins, Gerard R; Campbell, Donald M; Wilson, Neil I L; Maclean, Jamie G B

    2016-05-01

    This study was designed to determine whether prophylactic pinning of the unaffected hip in unilateral slipped capital femoral epiphysis affects the proximal femoral morphology. Twenty-four hips prophylactically pinned were compared with 26 cases observed. The articulotrochanteric distance (ATD) and the trochanteric-trochanteric distance (TTD) were measured. Postoperative radiographs were compared with final follow-up radiographs. The final TTD : ATD ratio was higher (P=0.048) in the pinned group, suggesting relative coxa vara/breva. There was a smaller difference between the two hips in the prophylactically pinned group (0.7) as opposed to those observed (1.47). Prophylactic pinning does not cause growth to stop immediately but alters the proximal femoral morphology.

  6. 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.)

  7. Multiplanar CT assessment of femoral head displacement in slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    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.)

  8. Cam deformity and hip degeneration are common after fixation of a slipped capital femoral epiphysis

    DEFF Research Database (Denmark)

    Klit, Jakob; Gosvig, Kasper; Magnussen, Erland;

    2014-01-01

    Background and purpose - Slipped capital femoral epiphysis is thought to result in cam deformity and femoroacetabular impingement. We examined: (1) cam-type deformity, (2) labral degeneration, chondrolabral damage, and osteoarthritic development, and (3) the clinical and patient-reported outcome...

  9. Can GnRH-agonist treatment cause slipped capital femoral epiphysis?

    NARCIS (Netherlands)

    Kempers, MJE; Noordam, C; Rouwe, CW; Otten, BJ

    2001-01-01

    Slipped capital femoral epiphysis (SCFE) mainly occurs in pubertal children and is associated with delayed skeletal maturation, obesity, high growth velocity and tall stature. Furthermore, SCFE often coincides with endocrine disorders. This is the first report of a possible relationship between SCFE

  10. Cam Deformity and Hip Degeneration Presents 10 to 17 Years After Fixation of a Slipped Capital Femoral Epiphysis

    DEFF Research Database (Denmark)

    Klit, Jakob; Gosvig, Kasper; Magnussen, Erland;

    2014-01-01

    Background and purpose: Slipped capital femoral epiphysis (SCFE) is hypothesized to result in cam deformity and femoroacetabular impingement. We examined: (1)cam-type deformity, (2) labral degeneration, chondrolabral damage, and osteoarthritic development, (3) the clinical and patient-reported ou......Background and purpose: Slipped capital femoral epiphysis (SCFE) is hypothesized to result in cam deformity and femoroacetabular impingement. We examined: (1)cam-type deformity, (2) labral degeneration, chondrolabral damage, and osteoarthritic development, (3) the clinical and patient...

  11. Subtrochanteric Femur Fracture after Slipped Capital Femoral Epiphysis Pinning: A Novel Treatment

    Directory of Open Access Journals (Sweden)

    Michael Paloski

    2011-01-01

    Full Text Available Slipped capital femoral epiphysis is a common injury suffered by adolescents worldwide. Treatment of most slips can be accomplished by percutaneous screw fixation, as this is an accepted and proven method associated with minimal morbidity. Complications, although limited, can be problematic for both the patient and treating physician. These include avascular necrosis, chondrolysis, infection, and fracture. We report a case of an individual who sustained a subtrochanteric femure fracture three weeks after in situ pinning of his left hip treated with a reconstruction intramedullary nail. This option allowed both the subtrochanteric fracture and SCFE to be treated concomitantly with minimized morbidity.

  12. Levels of Evidence in the Treatment of Slipped Capital Femoral Epiphysis: A Systematic Review.

    Science.gov (United States)

    Moriarity, Andrew; Kennedy, Jim; Baker, Joe; Kiely, Pat

    2016-06-27

    The primary aim of this study was to analyze the current level of evidence available on the surgical management of Slipped Capital Femoral Epiphysis (SCFE). Secondary aims were to correlate the level of evidence with the impact factor of the journal to evaluate the level of evidence over time, and to evaluate the geographic distribution of the studies. Therapeutic studies published in English between January 1991 and August 2014 that reported on SCFE were identified via electronic search was performed using the databases PubMed, EMBASE, and the Cochrane Library. The search terms used included: Slipped capital femoral epiphyses OR SCFE OR Slipped upper femoral epiphyses OR SUFE AND Management OR Treatment. Correlation between the level of evidence and the impact factor of the journal were analyzed together with linear regression models to reveal any significant trends over time. A total of 1516 studies were found, of which 321 were included in the final analysis. The most frequent study type was the case series (51.1%) followed by case reports (22.4%) and expert opinion (14.0%). Randomized control trial accounted for only 0.6%. The Journal of Pediatric Orthopedics (American) had the most studies (22.6%) and the highest number of level 2 (n=1) and level 3 (n=15) type evidence. There was no progression of level of evidence over time. There was no correlation between level of evidence and impact factor of journal. The majority of therapeutic studies on SCFE are of low level of evidence. High-level RCTs are difficult to perform in pediatric orthopedic surgery, however the management of SCFE would benefit from well-designed, multicenter, clinical RCTs to advance evidence-based practice. PMID:27433299

  13. Fibular Allograft and Demineralized Bone Matrix for the Treatment of Slipped Capital Femoral Epiphysis.

    Science.gov (United States)

    Murray, Travis; Morscher, Melanie A; Krahe, Amy M; Adamczyk, Mark J; Weiner, Dennis S

    2016-05-01

    Previous studies documented the use of fibular allograft in the treatment of slipped capital femoral epiphysis (SCFE) with bone graft epiphysiodesis (BGE). This study describes the results of using a 10-mm diameter premilled fibular allograft packed with demineralized bone matrix placed across the physis in an open surgical approach under image intensification. A review identified 45 cases of BGE using fibular allograft and demineralized bone matrix in 34 patients with a diagnosis of SCFE performed by a single surgeon during an 8-year period. Thirty-four cases (25 patients) had at least 1 year of follow-up and were included in the study. Medical records were reviewed for complications, subsequent surgeries, and time to physeal closure. Of the 34 cases included, there were no cases of acute chondrolysis. Complications included 1 case of bone graft extrusion that required surgical replacement and 1 re-slip requiring surgical stabilization. Five cases of avascular necrosis (AVN) were encountered (1 unstable slip with total head AVN, and 4 stable slips with 3 total head and 1 partial head AVN). In 1 patient, small loose bony fragments were noted on postoperative radiographs that appeared outside of the articular surface of the hip and were asymptomatic. Two patients encountered wound healing issues that resolved with appropriate wound care. In light of the occurrence of AVN in stable cases, BGE with autogenous corticocancellous graft is preferable to BGE with autologous fibular graft for the treatment of SCFE. [Orthopedics. 2016; 39(3):e519-e525.].

  14. Slipped capital femoral epiphysis: a physeal lesion diagnosed by MRI, with radiographic and CT correlation

    International Nuclear Information System (INIS)

    Objective. To define and compare early lesions associated with slipped capital femoral epiphysis (SCFE) on magnetic resonance imaging (MRI), computed tomography (CT) and radiography. Design and patients. Thirteen patients with 15 symptomatic hips due to SCFE underwent radiography and MRI; CT was performed in 12 patients. SCFE was graded on radiographs, head/neck angles and qualitative changes were evaluated on CT, and morphologic/signal abnormalities were determined on MRI. Results. Physeal widening, apparent on T1-weighted MRI, was evident in every case of SCFE, including one presumed ''pre-slip.'' T2-weighted images demonstrated synovitis and marrow edema but obscured physeal abnormalities. CT head/neck angles ranged from 4-57 for symptomatic to 0-14 for asymptomatic hips. Physeal and metaphyseal changes were variably identified on both radiographs and CT in all cases of SCFE, but not in the pre-slip. Conclusion. MRI clearly delineates physeal changes of both pre-slip and SCFE, and demonstrates very early changes at a time when radiographs and CT may appear normal. (orig.)

  15. The role of pre-treatment MRI in established cases of slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    Background: Slipped capital femoral epiphysis (SCFE) often results in functional impairment and premature osteoarthritis despite surgical treatment. Treatment decisions are commonly based on the clinical history and radiographic appearance. This study assesses the pre-treatment features of SCFE and correlates them to the clinical history to: (1) define the underlying pathological mechanisms; (2) correlate the morphological hip abnormalities with the clinical classifications; (3) identify specific magnetic resonance imaging (MRI) features that could carry prognostic implications for treatment approach and outcome. Methods: Clinical history and pre- and posttreatment radiographs and pre-treatment MRIs of 14 patients with 15 affected hips were reviewed. Alignment, impingement, fulcrum formation, remodelling, osteopenia, synovitis, joint effusion, bone marrow and soft tissue oedema and status of the physis and the periosteal sleeve were assessed and related to the clinical history, in particular history of trauma, duration of clinical symptoms and ability to bear weight. Results: Bone marrow oedema around the growth plate and joint effusion occurred in all patients. Synovitis occurred in 13/15 patients. 6 patients had a fall before presenting with SCFE. 5/6 had periarticular soft tissue oedema, complete disruption of the physis and partial periosteal sleeve disruption. 9 patients had no fall prior to presentation, physis and periost were intact in 7/9; periarticular oedema was not seen. 14/15 showed evidence of chronic remodelling. Despite an acute clinical history remodelling was present. A fulcrum-like alignment, impingement of the epiphysis on the metaphysis with a small area of physical contact, was seen in 8 patients, 6/8 had a prior fall. There was no case of avascular necrosis. Spontaneous reduction of SCFE occurred in 1 case, the only case without chronic remodelling. With MRI as gold standard radiographs underestimate the severity of SCFE. Conclusion

  16. Reliable X-ray diagnosis of slipped capital femoral epiphysis by combining the conventional and a new simplified geometrical method

    International Nuclear Information System (INIS)

    Background: The diagnosis of subtle slipped capital femoral epiphysis (SCFE), for example in the contralateral asymptomatic hip, may require use of an exactly defined and reproducible lateral view where the slipping angle can be measured. Objective: To test a simplified geometrical method and compare it to the conventional method (AP and frogleg views). Materials and methods: The two methods were compared in 95 normal children 9-14 years old and 100 children 9-20 years old with SCFE. Results: The slipping angle (SA) measurements had very high reproducibility, and the new method was diagnostically superior to the conventional method (P<0.05). Conclusion: An exactly defined and reproducible lateral view is recommended for the X-ray diagnosis of SCFE. Nontraumatic SCFE appears to be bilateral in all cases. (orig.)

  17. MRI morphometry, cartilage damage and impaired function in the follow-up after slipped capital femoral epiphysis

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    Miese, Falk R.; Holstein, Arne; Kroepil, Patric; Moedder, Ulrich; Fuerst, Guenther [University Hospital Duesseldorf, Institute of Radiology, MNR Clinic, Duesseldorf (Germany); Zilkens, Christoph; Bittersohl, Bernd; Jaeger, Marcus; Krauspe, Ruediger [University Hospital Duesseldorf, Department of Orthopaedics, Duesseldorf (Germany); Mamisch, Tallal C. [University Bern, Department of Orthopaedic Surgery, Bern (Switzerland)

    2010-06-15

    To assess rotation deficits, asphericity of the femoral head and localisation of cartilage damage in the follow-up after slipped capital femoral epiphysis (SCFE). Magnetic resonance imaging studies were obtained in adult patients with a history of SCFE. A total of 35 hips after SCFE in 26 patients (mean age 24.1 {+-} 6.5, mean follow-up 11.9 {+-} 6.1 years) were evaluated. The control group comprised 20 healthy hips from 10 young adults with an average age of 23.9 {+-} 3.7 years. The MR protocol included a T1-weighted sequence with a 3D volumetric interpolated breath-hold sequence and a radial 2D proton density-weighted sequence around the femoral neck. Images were evaluated for alpha angle and cartilage damage in five positions around the femoral head. Hip function was evaluated at the time of MRI and correlated with MRI results. Mann-Whitney U test and Spearman's correlation coefficient were used for statistical analysis. In the hips after SCFE alpha angles were significantly increased in the anterosuperior (74.1 {+-} 18.8 ) and superior (72.5 {+-} 21.5 ) positions and decreased in the posterior position (25.0 {+-} 7.2 ). Cartilage damage was dominant in the anterosuperior and superior positions. Impaired rotation significantly correlated with increased anterosuperior, superior and posterosuperior alpha angles. The data support an anterosuperior and superior cam-type deformity of the femoral head-neck junction in the follow-up after SCFE. MRI after SCFE can be used to assess anterosuperior and superior alpha angles, since the anterior alpha angle by itself may underestimate asphericity and is not associated with rotation deficits. (orig.)

  18. MRI morphometry, cartilage damage and impaired function in the follow-up after slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    To assess rotation deficits, asphericity of the femoral head and localisation of cartilage damage in the follow-up after slipped capital femoral epiphysis (SCFE). Magnetic resonance imaging studies were obtained in adult patients with a history of SCFE. A total of 35 hips after SCFE in 26 patients (mean age 24.1 ± 6.5, mean follow-up 11.9 ± 6.1 years) were evaluated. The control group comprised 20 healthy hips from 10 young adults with an average age of 23.9 ± 3.7 years. The MR protocol included a T1-weighted sequence with a 3D volumetric interpolated breath-hold sequence and a radial 2D proton density-weighted sequence around the femoral neck. Images were evaluated for alpha angle and cartilage damage in five positions around the femoral head. Hip function was evaluated at the time of MRI and correlated with MRI results. Mann-Whitney U test and Spearman's correlation coefficient were used for statistical analysis. In the hips after SCFE alpha angles were significantly increased in the anterosuperior (74.1 ± 18.8 ) and superior (72.5 ± 21.5 ) positions and decreased in the posterior position (25.0 ± 7.2 ). Cartilage damage was dominant in the anterosuperior and superior positions. Impaired rotation significantly correlated with increased anterosuperior, superior and posterosuperior alpha angles. The data support an anterosuperior and superior cam-type deformity of the femoral head-neck junction in the follow-up after SCFE. MRI after SCFE can be used to assess anterosuperior and superior alpha angles, since the anterior alpha angle by itself may underestimate asphericity and is not associated with rotation deficits. (orig.)

  19. Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC), after slipped capital femoral epiphysis

    International Nuclear Information System (INIS)

    Objective: The aim of this study was to assess the glycosaminoglycan (GAG) content in hip joint cartilage in mature hips with a history of slipped capital femoral epiphysis (SCFE) using delayed gadolinium-enhanced MRI of cartilage (dGEMRIC). Methods: 28 young-adult subjects (32 hips) with a mean age of 23.8 ± 4.0 years (range: 18.1-30.5 years) who were treated for mild or moderate SCFE in adolescence were included into the study. Hip function and clinical symptoms were evaluated with the Harris hip score (HHS) system at the time of MRI. Plain radiographic evaluation included Tonnis grading, measurement of the minimal joint space width (JSW) and alpha-angle measurement. The alpha-angle values were used to classify three sub-groups: group 1 = subjects with normal femoral head-neck offset (alpha-angle o), group 2 = subjects with mild offset decrease (alpha-angle 50o-60o), and group 3 = subjects with severe offset decrease (alpha-angle >60o). Results: There was statistically significant difference noted for the T1Gd values, lateral and central, between group 1 and group 3 (p-values = 0.038 and 0.041). The T1Gd values measured within the lateral portion were slightly lower compared with the T1Gd values measured within the central portion that was at a statistically significance level (p-value <0.001). HHS, Tonnis grades and JSW revealed no statistically significant difference. Conclusion: By using dGEMRIC in the mid-term follow-up of SCFE we were able to reveal degenerative changes even in the absence of joint space narrowing that seem to be related to the degree of offset pathology. The dGEMRIC technique may be a potential diagnostic modality in the follow-up evaluation of SCFE.

  20. Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC), after slipped capital femoral epiphysis

    Energy Technology Data Exchange (ETDEWEB)

    Zilkens, Christoph, E-mail: Christoph.Zilkens@med.uni-duesseldorf.de [Department of Orthopaedics, Heinrich-Heine University Medical School, Moorenstrasse 5, 40225 Duesseldorf (Germany); Miese, Falk [Department of Radiology, Heinrich-Heine University Medical School, Moorenstrasse 5, 40225 Duesseldorf (Germany); Bittersohl, Bernd; Jaeger, Marcus; Schultz, Johannes [Department of Orthopaedics, Heinrich-Heine University Medical School, Moorenstrasse 5, 40225 Duesseldorf (Germany); Holstein, Arne [Department of Radiology, Heinrich-Heine University Medical School, Moorenstrasse 5, 40225 Duesseldorf (Germany); Kim, Young-jo; Millis, Michael B. [Department of Orthopaedic Surgery, Childrens Hospital Boston, Harvard Medical, School, 300 Longwood Avenue, Boston, MA 02115 (United States); Mamisch, Tallal C. [Department of Orthopaedic Surgery, Inselspital Bern, University Hospital, Bern (Switzerland); Krauspe, Ruediger [Department of Orthopaedics, Heinrich-Heine University Medical School, Moorenstrasse 5, 40225 Duesseldorf (Germany)

    2011-09-15

    Objective: The aim of this study was to assess the glycosaminoglycan (GAG) content in hip joint cartilage in mature hips with a history of slipped capital femoral epiphysis (SCFE) using delayed gadolinium-enhanced MRI of cartilage (dGEMRIC). Methods: 28 young-adult subjects (32 hips) with a mean age of 23.8 {+-} 4.0 years (range: 18.1-30.5 years) who were treated for mild or moderate SCFE in adolescence were included into the study. Hip function and clinical symptoms were evaluated with the Harris hip score (HHS) system at the time of MRI. Plain radiographic evaluation included Tonnis grading, measurement of the minimal joint space width (JSW) and alpha-angle measurement. The alpha-angle values were used to classify three sub-groups: group 1 = subjects with normal femoral head-neck offset (alpha-angle <50{sup o}), group 2 = subjects with mild offset decrease (alpha-angle 50{sup o}-60{sup o}), and group 3 = subjects with severe offset decrease (alpha-angle >60{sup o}). Results: There was statistically significant difference noted for the T1{sub Gd} values, lateral and central, between group 1 and group 3 (p-values = 0.038 and 0.041). The T1{sub Gd} values measured within the lateral portion were slightly lower compared with the T1{sub Gd} values measured within the central portion that was at a statistically significance level (p-value <0.001). HHS, Tonnis grades and JSW revealed no statistically significant difference. Conclusion: By using dGEMRIC in the mid-term follow-up of SCFE we were able to reveal degenerative changes even in the absence of joint space narrowing that seem to be related to the degree of offset pathology. The dGEMRIC technique may be a potential diagnostic modality in the follow-up evaluation of SCFE.

  1. Slipped upper femoral epiphysis: Outcome after in situ fixation and capital realignment technique

    Directory of Open Access Journals (Sweden)

    Sanjay Arora

    2013-01-01

    Results: Clinical outcome as assessed by Merle d′ Aubigne score was excellent in 6, good in 10, fair in 6 and poor in 1. Half of the in situ fixation patients underwent osteoplasty procedure for femoroacetabular impingement and 5 more were symptomatic. The head neck offset and α angle after in situ pinning were -1.12 ± 3 mm and 66.05 ± 9.7°, respectively and this improved to 8.7 mm and 49°, respectively, after osteoplasty. One child in the pinning group had chondrolysis. Eight patients with severe slip underwent capital realignment. Mean followup was 20.15 months. The anterior head neck offset and α angle were corrected to 6.8 ± 1.72 mm and 44.6 ± 7.0° mm, respectively. Two children with unstable slip in the capital realignment group had avascular necrosis which was diagnosed at presentation by bone scan. Conclusion: High BMI, vitamin D deficiency and endocrine disorders are associated with SUFE in India and should be evaluated as some of these are amenable to prevention and treatment. Most patients treated with in situ pinning developed femoroacetabular impingement. The early results after capital realignment procedure are encouraging and help to avoid a second procedure which is needed in a majority of patients who underwent in situ pinning.

  2. Slipped upper femoral epiphysis with hemophilia A

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    Iyer Deepa

    2007-01-01

    Full Text Available A 13-year-old boy who had hemophilia A was reported with pain in the left thigh and hip on walking. He had no history of trauma. Severe hemophilia A is diagnosed with a Factor VIII level of < 1 iu/dl. The presumptive diagnosis was that of a spontaneous bleed into the hip joint. Factor VIII mutational analysis revealed a C to G substitution at nucleotide 6683 which results in a cystine change at codon 2194. However, the symptoms persisted and an X-ray demonstrated the presence of an acute on chronic slip of the upper femoral epiphysis. The patient was transferred to the center treating his hemophilia where the hip was pinned in situ under cover with Factor VIII. This case demonstrates the need to be aware of a possible traumatic diagnosis of hip pain in a hemophiliac child with a longstanding history of spontaneous bleeding into joints.

  3. Early Reversible Ischemia of Femoral Head Epiphysis in Piglets on Gadolinium-enhanced MRI: An experimental study

    Institute of Scientific and Technical Information of China (English)

    LI Xiaoming; HU Junwu; ZHEN Hongwei; TANG Lihua; XU Anhui

    2006-01-01

    The purpose of this study is to demonstrate if Gadolinium-enhanced MRI can detect early reversible ischemia of the femoral head epiphysis caused by hip hyper-abduction in piglets. Between 3 and 6 h consistent hyper-abduction, gadolinium-enhanced MRI was performed in 20 femoral heads of 10 piglets. After completion of MRI scan, the piglets were allowed to ambulate freely for 1 or 7 days and re-imaged. The enhanced-MRI results of epiphyseal and physeal cartilage and the secondary center of ossification were observed. MRI appearances and histological findings were compared. On Gadolinium-enhanced MRI, decreased or absent enhancement was seen in 14 cartilaginous epiphyses of all 20 femoral heads. Reperfusion was completed in 10 of 14 femoral heads after one day of ambulation and in the rest 4 after 7 days of ambulation. Gadolinium-enhanced MRI can identify early ischemia and its reversal of the capital femoral epiphysis induced by hip hyper-abduction.

  4. Spina bifida and unilateral focal destruction of the distal femoral epiphysis

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    Wolverson, M.K.; Sundaram, M.; Graviss, E.R.

    1981-03-01

    Focal destruction of the postero-lateral distal femoral epiphysis was present on radiographs in two children with spina bifida and objective lower limb sensory loss. Each patient presented with painless swelling of the knee. In one patient the epiphysis showed sclerosis and fragmentation associated with a defect. In the second patient the destructive change was the dominant radiographic abnormality and simulated bone tumor. Computed tomography in this patient showed a bone fragment occupying the defect suggesting epiphyseal fracture. The lesions in each patient were believed to be traumatic in origin and to represent a stage in the development toward neuropathic arthropathy.

  5. Spina bifida and unilateral focal destruction of the distal femoral epiphysis

    International Nuclear Information System (INIS)

    Focal destruction of the postero-lateral distal femoral epiphysis was present on radiographs in two children with spina bifida and objective lower limb sensory loss. Each patient presented with painless swelling of the knee. In one patient the epiphysis showed sclerosis and fragmentation associated with a defect. In the second patient the destructive change was the dominant radiographic abnormality and simulated bone tumor. Computed tomography in this patient showed a bone fragment occupying the defect suggesting epiphyseal fracture. The lesions in each patient was believed to be traumatic in origin and to represent a stage in the development toward neuropathic arthropathy. (orig.)

  6. Brodie's abscess of the proximal femoral epiphysis in an adult woman with systemic lupus erythematosus.

    Science.gov (United States)

    Miyanishi, Keita; Yamamoto, Takuaki; Irisa, Takahiko; Jingushi, Seiya; Noguchi, Yasuo; Iwamoto, Yukihide

    2002-06-01

    We report an unusual case of pathologically proved femoral head Brodie's abscess mimicking avascular necrosis of bone in a 51-year-old woman with a 2-year history of corticosteroid treatment for systemic lupus erythematosus. On plain radiographs, a rounded lucency and thin sclerotic margins together with subchondral collapse and a lytic region were observed in the femoral head. The histopathologic examination revealed a central abscess formation surrounded by fibrous tissue with the aggregation of neutrophils and plasma cells. To our knowledge, this is the first case report describing a Brodie's abscess which had developed within the proximal femoral epiphysis in an adult.

  7. 髋关节外科脱位入路切开复位手术治疗中重度股骨头骨骺滑脱的临床疗效%Results of surgical treatment for moderate or severe slipped capital femoral epiphysis through the approach of surgical hip dislocation

    Institute of Scientific and Technical Information of China (English)

    杨璇; 蔡奇勋; 李海; 张自明; 陈珽; 赵黎

    2014-01-01

    Objective To evaluate the results of surgical treatment for moderate or severe slipped capital femoral epiphysis (SCFE) using modified Dunn procedure through the approach of surgical hip dislocation at the interval of minimum 12 months follow-up.Methods From November 2011 to June 2013,6 patients (7 hips) with SCFE were treated in department of pediatric orthopedics,Hospital Affiliated to Shanghai Jiaotong University School of Medicine,they all had trauma history.The patients were aged from 10-15 years,mean 13.6 years.The duration of symptoms ranged from 4 to 35 days,average 14.2 days.The degree of slip was averagely 45% (25%-55%).In 6 patients (except right side of 1 case was treated in situ with cannulated screws) were surgically treated using modified Dunn procedure through the approach of surgical hip dislocation.Postoperatively the brace was used for immobilizing the hip for 4 weeks,then 4 weeks of bed traction combined with rehabilitation program of hip joint activity.Eight weeks later,the gradual touchdown weight bearing was being allowed.Results The follow-up time ranged from 12 to 30 months,average 23.8 months.Six patients have been able to walk without crutches,no obvious limp.X-ray film showed femoral epiphysis line on the bit of good recovery,no appearance of avascular necrosis of the femoral head,joint space was normal.The Harris score of hip evaluation was 94.7 averagely,ranging 85 -100,at the time of last follow-up.Conclusions Application of surgical treatment for moderate or severe SCFE with open reduction through the approach of surgical hip dislocation is a valid alternative method.The femoral head epiphysis can be capable of restoring anatomy,at present no case occurred avascular necrosis,and patients are satisfied with the function of the hip joint.%目的 总结应用髋关节外科脱位入路行切开复位手术治疗青少年中、重度股骨头骨骺滑脱后至少12个月的随访效果.方法 2011年11月至2013年6月上海交通

  8. Evaluation of healing process of the femoral head epiphysis by Gd-DTPA enhanced magnetic resonance imaging in patients with Legg-Calve-Perthes disease

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, Eijiro; Satake, Takayuki; Yanagida, Haruhisa; Ishitani, Eiichi; Kido, Hidehiko [Beppu Developmental Medical Center, Oita (Japan); Torisu, Takehiko; Nakamura, Taro; Masumi, Shogo

    1996-04-01

    A study comparing radiographic stage to gadolinium diethylenetriamine pentaacetic acid (Gd-DTPA) enhanced Magnetic Resonance Imaging (MRI) was performed on the sixteen hips in 12 patients with Legg-Calve-Perthes Disease (LCPD) to evaluate of the healing process within the femoral head epiphysis. Jonsaeter`s X-ray classification was used to determine the chronological phase. The enhanced area within the femoral head epiphysis was observed in 8 hips (initial stage, 1 of 3; fragmentation stage, 4 of 4; reparative stage, 2 of 5; and definitive stage, 1 of 4). The enhanced area within the femoral head epiphysis indicated the repair granulation tissue. This enhanced area was observed at the lateral portion of the femoral head epiphysis in the initial stage and was most extensive in the fragmentation stage. After the reparative stage, it were decreased probably associated with the reossification. Gd-DTPA enhanced MR imaging was able to provide useful information regarding the extent of the repair granulation tissue within the femoral head epiphysis, and was also useful in distinguishing synovitial proliferation from joint fluid. (author)

  9. Effect of arterial deprivation on growing femoral epiphysis: Quantitative magnetic resonance imaging using a piglet model

    Energy Technology Data Exchange (ETDEWEB)

    Cheon, Jung Eun; Yoo, Won Joon; Kim, In One; Kim, Woo Sun; Choi, Young Hun [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    2015-06-15

    To investigate the usefulness of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and diffusion MRI for the evaluation of femoral head ischemia. Unilateral femoral head ischemia was induced by selective embolization of the medial circumflex femoral artery in 10 piglets. All MRIs were performed immediately (1 hour) and after embolization (1, 2, and 4 weeks). Apparent diffusion coefficients (ADCs) were calculated for the femoral head. The estimated pharmacokinetic parameters (Kep and Ve from two-compartment model) and semi-quantitative parameters including peak enhancement, time-to-peak (TTP), and contrast washout were evaluated. The epiphyseal ADC values of the ischemic hip decreased immediately (1 hour) after embolization. However, they increased rapidly at 1 week after embolization and remained elevated until 4 weeks after embolization. Perfusion MRI of ischemic hips showed decreased epiphyseal perfusion with decreased Kep immediately after embolization. Signal intensity-time curves showed delayed TTP with limited contrast washout immediately post-embolization. At 1-2 weeks after embolization, spontaneous reperfusion was observed in ischemic epiphyses. The change of ADC (p = 0.043) and Kep (p = 0.043) were significantly different between immediate (1 hour) after embolization and 1 week post-embolization. Diffusion MRI and pharmacokinetic model obtained from the DCE-MRI are useful in depicting early changes of perfusion and tissue damage using the model of femoral head ischemia in skeletally immature piglets.

  10. Fixation of femoral capital physeal fractures with 7.0 mm cannulated screws in five bulls

    International Nuclear Information System (INIS)

    Salter-Harris type I fractures of the femoral capital physis were repaired in five Holstein bulls with three 7.0 mm cannulated screws placed in lag fashion. Radiographically at months 7 to 10, the fractures were healed and there was periarticular bone production on the femoral necks and the dorsal acetabular rims. Four bulls had normal gaits, and one bull had muscle atrophy and barely detectable lameness

  11. A technique for repair of femoral capital epiphyseal fractures in the dog

    International Nuclear Information System (INIS)

    new method for repair of femoral capital epiphyseal fractures in the immature dog is described. The technique employs two small AO/ASIF cortical screws inserted in lag fashion from the articular surface into the femoral neck. The screw heads are countersunk, so as not to project from the articular cartilage of the femoral epiphyseal fragment, While this is an early report it is hoped that it will prompt the use of the technique by others so that its long term assessment may be more rapidly determined than by one clinic working alone

  12. Internal fixation of femoral capital physeal injuries in dogs: 40 cases (1979-1987)

    International Nuclear Information System (INIS)

    Fractures of the femoral capital physis were stabilized with small pins or a lag screw in 36 dogs (4 bilateral injuries). Radiography was used to monitor the development of osteoarthritis in affected joints and narrowing of the femoral neck. More radiographic signs of arthritis (P less than 0.05) developed in the coxofemoral joints of dogs that were less than or equal to 4 months old when injured, compared with those in dogs greater than 4 months old. Of 40 capital physeal injuries, 35% had concurrent ipsilateral coxofemoral joint injuries and developed more radiographic signs of arthritis (P less than 0.05) than did those that had no other coxofemoral injury. Narrowing of the femoral neck developed in 70% of the healing capital physeal repairs, but in most dogs, narrowing was not associated with segmental collapse of the femoral neck. Neither time interval from injury to surgical fixation nor surgical approach used had an effect (P greater than 0.05) on the development of narrowing of the femoral neck

  13. A Huge Capital Drop with Compression of Femoral Vessels Associated with Hip Osteoarthritis

    Directory of Open Access Journals (Sweden)

    Tomoya Takasago

    2015-01-01

    Full Text Available A capital drop is a type of osteophyte at the inferomedial portion of the femoral head commonly observed in hip osteoarthritis (OA, secondary to developmental dysplasia. Capital drop itself is typically asymptomatic; however, symptoms can appear secondary to impinge against the acetabulum or to irritation of the surrounding tissues, such as nerves, vessels, and tendons. We present here a case of unilateral leg edema in a patient with hip OA, caused by a huge bone mass occurring at the inferomedial portion of the femoral head that compressed the femoral vessels. We diagnosed this bone mass as a capital drop secondary to hip OA after confirming that the mass occurred at least after the age of 63 years based on a previous X-ray. We performed early resection and total hip arthroplasty since the patient’s hip pain was due to both advanced hip OA and compression of the femoral vessels; moreover, we aimed to prevent venous thrombosis secondary to vascular compression considering the advanced age and the potent risk of thrombosis in the patient. A large capital drop should be considered as a cause of vascular compression in cases of unilateral leg edema in OA patients.

  14. 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.)

  15. Quantitative assessment of femoral head involvement in Legg-Calve-Perthes disease

    Energy Technology Data Exchange (ETDEWEB)

    LaMont, R.L.; Muz, J.; Heilbronner, D.; Bouwhuis, J.A.

    1981-06-01

    We have developed a method for determining the extent of avascularity of the capital femoral epiphysis in suspected Legg-Calve-Perthes disease. The avascularity is expressed quantitatively as a percentage of the normal uptake of a radionuclide in the vicinity of the involved hip. In twenty-seven patients who had radionuclide scintigraphy this method was reliable in establishing an early diagnosis of Legg-Calve-Perthes disease as well as in assessing the amount of involvement of the femoral head. In some patients the diagnosis can be established by radionuclide scintigraphy before the changes of Legg-Calve-Perthes disease are apparent on standard radiographs.

  16. Chondroblastoma of the femoral head: management and outcome.

    Science.gov (United States)

    Strong, D P; Grimer, R J; Carter, S R; Tillman, R M; Abudu, A

    2010-03-01

    Chondroblastoma of the femoral head presents particular problems in treatment because the tumour is surrounded by articular cartilage on one side and epiphyseal plate on the other. Ten patients underwent treatment for a chondroblastoma involving the proximal femoral capital epiphysis. The patients were aged between eight and 19 years and in four the epiphysis was not yet fused. Five had curettage via a drill hole created up the femoral neck, of whom two developed local recurrence. Five had a direct approach to the chondroblastoma through the femoral neck, and there were no local recurrences in this group. Both patients with local recurrence were under 14 years of age-one was cured by a direct approach through the neck of the femur and the other by lifting a trap door of articular cartilage. Apart from one patient with a temporary leg length discrepancy, there were no other complications. We conclude that a direct approach is likely to lead to the best outcome for this rare condition.

  17. 小直径可吸收聚消旋乳酸棒斜穿骺板植入对兔骺板生长的影响%Influence of absorbable poly-D, L-lactide acid rod of small diameter after diagonally implanted into the distal femoral epiphysis on development of rabbit epiphyseal plate

    Institute of Scientific and Technical Information of China (English)

    雷军; 刘世清; 蔡林

    2009-01-01

    Objective To investigate the influence of absorbable poly-D, L-lactide acid (PDL-LA) rods on the development of epiphyseal plate after diagonally implanted into the distal femoral epiphy-sis in skeletally immature Japanese white rabbits. Methods Twenty-four 5-week old Japanese white rab-bits were evenly randomized into 2 groups according to the diameter of rods: 1.0-mm PDLLA rod group and 2.0-mm PDLLA rod group. The absorbable PDLLA rods were diagonally placed into an oblique drill hole of equal size in the medialcondyle of the right distal femur, crossing the central portion of epiphyseal plate ; A similar arthrotomy was performed in the left knee, which served as a control, but no drilling and no im-planting were carried out. The area of injured epiphyseal plates was calculated by a computer. The animals were sacrificed at 6th, 12th and 24th week, and gross observation, measurements of both femur bone length,radiographic measurement of both femur-condyle valgus angles, histology sections and ground sec-tion were performed to evaluate the development of epiphyseal plate. Results The proportions of injured area in 1.0 mm group, and 2.0 mm group were ( 1.42 ± 0.10 ) % , and ( 3.62 ± 0.18 ) % respectively. At 6th, 12th,24th week after operation, there was no significant difference in femur lengths and valgus angles between two sides in each group ( P > 0.05 ). Conclusion PDLLA rod of small diameter diagonally im-planted into the distal femoral epiphysis does not cause any disturbance to the development of the epiphys-eat plate.%目的 观察小直径可吸收聚消旋乳酸棒(PDLLA)斜穿骺板植入对幼兔股骨远端骺板生长的影响.方法 采用封闭群系5周龄日本大白兔24只,随机分为2组:1.0、2.0 mm组,每组12只.在幼兔右侧股骨远端跨骺板分别斜行植入直径为1.0、2.0 mm的PDLLA棒;左侧作为对照,只作膝关节切开,不钻孔,不植入可吸收聚消旋乳酸棒.电脑计算骺板损伤面积,术后6、12、24周处

  18. Reconstruction with preservation of the epiphysis by using custom-made prosthesis in children with distal femoral osteosarcomas%儿童股骨远端骨肉瘤保留骨骺的定制肿瘤型假体重建术

    Institute of Scientific and Technical Information of China (English)

    董扬; 阎洪亮; 张智长; 稽伟平; 杨庆诚; 覃澍

    2015-01-01

    Objectives To evaluate the preliminary effectiveness,investigate the clinical methods and prevent the complications of the epiphysis preservation operation by using custom-made prosthesis in children with distal femoral osteosarcomas.Methods Between August 2012 and July 2013,3 patients (from 8 to 14 years old) who were diagnosed of osteosarcoma underwent tumor segmental resection and epiphysis preservation operation and reconstruction with custom-made prosthesis.Patients were assigned neoadjuvant chemotherapy 1 to 2 cycles.The effect of neoadjuvant chemotherapy was then evaluated by X-ray,CT and MRI.Patients were determined the disease field by MRI,customized prosthesis by computer and had surgery of tumor segmental resection and reconstruction with custom-made prosthesis.All individuals were given appropriate functional exercise after operation,standard chemotherapy after incision healing one week,and long-time follow-ups.Results The operation times were 3 hours,4 hours and 6 hours.The bleeding losses during operation were 300 ml,500 ml and 2200 ml,respectively.The functional scores according to the scoring system of the Musculoskeletal Tumor Society (MSTS) after 12-24 months follow-ups were 24,26 and 13,respectively.And excellent functional results were obtained in short-time follow-ups.1 patient had prosthesis infection and amputation was taken after failing in conservative treatment.Unequal lengths of both lower extremities in 2 patients were less than 2 cm.Conclusion For the pediatric distal femoral osteosarcomas that has surgical indications,a new theory and therapy idea on combination of epiphysis preservation operation with custom-made prosthesis and neoadjuvant chemotherapy and standardized postoperative chemotherapy is suggested.And it has advantages of effective curative effect,easy operation,short operative time and quick recovery.However,long-term outcomes of complications should be observed further.%目的 介绍儿童股骨远端骨肉瘤保留

  19. Ewing's sarcoma of proximal humeral epiphysis.

    Science.gov (United States)

    Esmaili, Heydar Ali; Niknejad, Mohammad Taghi; Mohajeri, Shiva

    2015-02-01

    Ewing's sarcoma is one of the most common primary bone tumors of childhood. The tumor is almost always metaphyseal or diaphyseal, within long bones. In children, lesions of the epiphysis are often benign, with the most common diagnosis being chondroblastoma. Rarely, 1%-2% of Ewing sarcomas may involve epiphysis. We present a case of Ewing's sarcoma of the proximal humeral epiphysis in a 13-year-old boy. This case adds to previously reported cases of epiphyseal Ewing sarcoma and suggests that the diagnosis should be considered for pediatric epiphyseal lesions. PMID:25644805

  20. Asymmetry and structural system analysis of the proximal femur meta-epiphysis: osteoarticular anatomical pathology

    Directory of Open Access Journals (Sweden)

    Baydoun Safaa

    2008-02-01

    Full Text Available Abstract Background The human femur is commonly considered as a subsystem of the locomotor apparatus with four conspicuous levels of organization. This phenomenon is the result of the evolution of the locomotor apparatus, which encompasses both constitutional and individual variability. The work therein reported, therefore, underlies the significance of observing anatomical system analysis of the proximal femur meta-epiphysis in normal conditions, according to the anatomic positioning with respect to the right or left side of the body, and the presence of system asymmetry in the meta-epiphysis structure, thus indicating structural and functional asymmetry. Methods A total of 160 femur bones of both sexes were compiled and a morphological study of 15 linear and angulated parameters of proximal femur epiphysis was produced, thus defining the linear/angulated size of tubular bones. The parameters were divided into linear and angulated groups, while maintaining the motion of the hip joint and transmission of stress to the unwanted parts of the limb. Furthermore, the straight and vertical diameters of the femoral head and the length of the femoral neck were also studied. The angle between the neck and diaphysis, the neck antiversion and angle of rotation of the femoral neck were subsequently measured. Finally, the condylo-diaphyseal angle with respect to the axis of extremity was determined. To visualize the force of intersystem ties, we have used the method of correlation galaxy construction. Results The absolute numeral values of each linear parameter were transformed to relative values. The values of superfluity coefficient for each parameter in the right and left femoral bone groups were estimated and Pearson's correlation coefficient has been calculated (> 0.60. Retrospectively, the observed results have confirmed the presence of functional asymmetry in the proximal femur meta-epiphysis. On the basis of compliance or insignificant difference in

  1. 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

  2. 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.)

  3. Osteochondritis of the Distal Tibial Epiphysis

    Directory of Open Access Journals (Sweden)

    Firass EL Hajj

    2012-01-01

    Full Text Available Osteochondritis of the distal tibial epiphysis is a very rare entity. 9 cases have been described in 7 articles and 8 other cases have been mentioned in textbooks. This paper describes the 10th case of osteochondritis of the distal tibial epiphysis and summarizes the clinical and radiological presentations of the 9 other cases. The etiology of this entity is well debated in the literature. We believe that it results from a vascular abnormality in the distal tibial epiphysis associated with a mechanical stress (trauma, excessive overload, etc.. Since it is a self-limited disease, the prognosis is good and the younger the patient is the better the prognosis will be. In general, this entity responds well to conservative treatment.

  4. A Multi-centre Study to Assess the Long-term Performance of the Pinnacle™ Cup With a Polyethylene-on-metal Bearing in Primary Total Hip Replacement

    Science.gov (United States)

    2016-08-15

    Rheumatoid Arthritis; Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis.

  5. A Randomised Single Centre Study to Compare the Long-term Performance of 4 Designs of the DePuy Ultima LX Stem in Primary Total Hip Replacement

    Science.gov (United States)

    2016-05-09

    Osteoarthritis; Post-traumatic Arthritis; Collagen Disorder; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis

  6. A Two Centre Study to Assess the Stability and Long-term Performance of the C-Stem™ AMT in a Total Primary Hip Replacement

    Science.gov (United States)

    2016-07-01

    Rheumatoid Arthritis; Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis.

  7. A Multi-centre Study to Assess the Long-term Performance of the Summit™ Hip in Primary Total Hip Replacement

    Science.gov (United States)

    2016-08-03

    Rheumatoid Arthritis; Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis

  8. A Study to Assess the Long-term Performance of SmartSet® HV and SmartSet® GHV Bone Cements in Primary Total Hip Replacement

    Science.gov (United States)

    2016-08-12

    Rheumatoid Arthritis; Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis

  9. A Two Centre Study to Assess the Long-term Performance of the Pinnacle™ Cup With a Metal-on-Metal Bearing in Primary Total Hip Replacement

    Science.gov (United States)

    2014-04-29

    Rheumatoid Arthritis; Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis

  10. A Single Centre Study to Assess the Long-term Performance of the Pinnacle™ Cup With a Ceramic-on-ceramic Bearing in Primary Total Hip Replacement

    Science.gov (United States)

    2014-08-13

    Rheumatoid Arthritis; Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis

  11. A Randomised Multi-centre Study to Compare the Long-term Performance of the Future Hip to 3 Other Implants in Primary Total Hip Replacement

    Science.gov (United States)

    2011-09-01

    Osteoarthritis; Post-traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis; Perthes Disease

  12. A Randomised Single Centre Study to Compare the Long-Term Wear Characteristics of Marathon™ and Enduron™ Polyethylene Cup Liners in Primary Total Hip Replacement

    Science.gov (United States)

    2009-04-07

    Osteoarthritis; Post-Traumatic Arthritis; Collagen Disorders; Avascular Necrosis; Traumatic Femoral Fractures; Nonunion of Femoral Fractures; Congenital Hip Dysplasia; Slipped Capital Femoral Epiphysis

  13. Capital

    OpenAIRE

    Coulangeon, Philippe

    2013-01-01

    Empruntée à l’appareil conceptuel de l’économie, la notion de capital désigne en première analyse l’ensemble des ressources dont disposent les individus et les groupes et qui affectent leurs trajectoires, notamment dans les domaines scolaire, professionnel, matrimonial et familial. La sociologie contemporaine se saisit le plus souvent du concept pour en souligner les différentes espèces : capital économique, capital culturel et capital social, principalement. Si le capital économique désigne ...

  14. Femoral hernia

    International Nuclear Information System (INIS)

    A retrospective study of 18 patients with femoral hernia assessed by herniography is presented. Although a palpable lump was present in 11 patients (61%), the diagnosis of a femoral hernia was not made before herniography. Surgical exploration was performed in 12 patients and a femoral hernia was found and repaired with beneficial outcome in 9 of them. In conclusion: herniography is of value for the diagnosis of a femoral hernia in patients with obscure groin pain. (author). 14 refs.; 2 figs

  15. Selective arteriography in femoral head fractures

    International Nuclear Information System (INIS)

    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

  16. Multicentric osteoid osteoma with a nidus located in the epiphysis

    Energy Technology Data Exchange (ETDEWEB)

    Tamam, Cueneyt [Kasimpasa Military Hospital, Kasimpasa Asker Hastanesi, Orthopedics and Traumatology, Istanbul (Turkey); Yildirim, Duezguen [Kasimpasa Military Hospital, Department of Radiology, Istanbul (Turkey); Tamam, Muge [Okmeydani Training and Research Hospital, Nuclear Medicine, Istanbul (Turkey)

    2009-11-15

    We present a 13-year-old girl who was referred to our clinic with a 5-month history of right leg pain relieved by salicylates. Initial CT examination demonstrated a lesion in the posterior tibial cortex in keeping with an osteoid osteoma. This was resected and the diagnosis confirmed by histology. However, her pain recurred 2 weeks after the operation and further imaging identified a further nidus in the epiphysis. We present the imaging findings in this unique case of multicentric osteoid osteoma with one nidus located in the epiphysis. (orig.)

  17. Biomechanical optimization of different fixation modes for a proximal femoral L-osteotomy

    Directory of Open Access Journals (Sweden)

    Chen Hsih-Hao

    2009-09-01

    Full Text Available Abstract Background Numerous proposed surgical techniques have had minimal success in managing greater trochanter overgrowth secondary to retarded growth of the femoral capital epiphysis. For reconstruction of residual hip deformities, a novel type of proximal femur L-osteotomy was performed with satisfactory results. Although the clinical outcome was good, the biomechanical characteristics of the femur after such an osteotomy have not been clearly elucidated. Therefore, this study presents a three dimensional finite element analysis designed to understand the mechanical characteristics of the femur after the L-osteotomy. Methods A patient with left hip dysplasia was recruited as the study model for L-osteotomy. The normal right hip was used as a reference for performing the corrective surgery. Four FEA models were constructed using different numbers of fixation screws but the same osteotomy lengths together with four FEA models with the same number of fixation screws but different osteotomy lengths. The von Mises stress distributions and femoral head displacements were analyzed and compared. Results The results revealed the following: 1. The fixation devices (plate and screws sustained most of the external loading, and the peak value of von Mises stress on the fixation screws decreased with an increasing number of screws. 2. Additional screws are more beneficial on the proximal segment than on the distal segment for improving the stability of the postoperative femur. 3. The extent of osteotomy should be limited because local stress might be concentrated in the femoral neck region with increasing length of the L-osteotomy. Conclusion Additional screw placement on the proximal segment improves stability in the postoperative femur. The cobra-type plate with additional screw holes in the proximal area might improve the effectiveness of L-osteotomies.

  18. Avascular necrosis of the distal phalangeal epiphysis following physeal fracture: a case report.

    Science.gov (United States)

    Nissenbaum, M

    1999-05-01

    Avascular necrosis of the distal phalangeal epiphysis following an unrecognized angulated Salter II fracture of the distal phalanx treated by open reduction and internal fixation resulted in premature closure of the growth plate and mild shortening. The epiphysis itself revascularized and good function of the distal interphalangeal joint was maintained.

  19. A trapdoor procedure for chondroblastoma of the femoral head: a case report.

    Science.gov (United States)

    Iwai, Toshiya; Abe, Satoshi; Miki, Yuji; Tokizaki, Toru; Matsuda, Kenta; Wakimoto, Nobuhiro; Nakamura, Sigeru; Imamura, Tetsuo; Matsushita, Takashi

    2008-08-01

    Chondroblastoma located in the femoral head is one of the locations accounting for frequent recurrence. One of the reasons for this is the difficulty in obtaining appropriate surgical access to it for adequate removal of tumors. The authors present and illustrate a trapdoor procedure for the surgical treatment of chodroblastoma in the epiphysis of the femoral head. The surgical approach was made over the great trochanter and a trochanteric osteotomy was performed. The capsulotomy was made anteriorly and posteriorly, and the hip was dislocated anteriorly. Using a scalpel and an osteotome, the edges of a trapdoor segment were sharply dissected and the rectangular segment was lifted back to reveal an underlying subchondral tumor. The tumor tissue was thoroughly curetted and autologous cancellous bone was grafted. The trapdoor was replaced without any additional fixation, and the femoral head was reduced. The patient recovered good hip function without pain, and showed no recurrence of chondroblastoma at 5 years after surgery. The trapdoor procedure enabled sufficient access to complete curettage and autologous cancellous bone grafting for the chondroblastoma of the femoral head. This procedure proved to be a useful surgical approach for the treatment of chodroblastoma in the epiphysis of the femoral head in this case. PMID:18026969

  20. Proximal focal femoral deficiency: evaluation by MR imaging

    Energy Technology Data Exchange (ETDEWEB)

    Biko, David M. [National Naval Medical Center, Department of Radiology, Bethesda, MD (United States); Uniformed Services University of Health Sciences, Department of Radiology and Radiological Sciences, Bethesda, MD (United States); Davidson, Richard [The Children' s Hospital of Philadelphia, Department of Orthopedic Surgery, Philadelphia, PA (United States); Pena, Andres; Jaramillo, Diego [The Children' s Hospital of Philadelphia, Department of Radiology, Philadelphia, PA (United States)

    2012-01-15

    Proximal focal femoral deficiency (PFFD) is a rare congenital anomaly characterized by abnormal development of the proximal femur. The most common radiographic classification (Aitken) does not evaluate the cartilaginous and soft-tissue abnormalities. To demonstrate MR findings of PFFD focusing on features not seen with radiographs. Nine MR examinations of the hip and femurs of seven children with PFFD were retrospectively reviewed. Imaging was quantitatively and qualitatively assessed comparing the affected limb to the contralateral limb and age-matched controls. The children were classified via the Aitken classification. All children had at least mild acetabular dysplasia, and one type D patient had no acetabulum. MR demonstrated that 4/6 children had labral hypertrophy with a decreased distance from the greater trochanter to the acetabular rim, suggesting impingement (P < 0.05). The proximal femoral physis was abnormal in all cases. The connection between the femoral head and shaft if present was fibrous or fibrocartilaginous. MRI can help in evaluation of PFFD by defining the anatomy. MR demonstrates features of the acetabulum and cartilaginous femoral epiphysis and depicts ligamentous abnormalities of the knee. (orig.)

  1. Femoral hernia repair

    Science.gov (United States)

    Femorocele repair; Herniorrhaphy; Hernioplasty - femoral ... During surgery to repair the hernia, the bulging tissue is pushed back in. The weakened area is sewn closed or strengthened. This repair ...

  2. Dynamic gadolinium-enhanced MRI evaluation of porcine femoral head ischemia and reperfusion

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, T. [Clinic for Orthopaedics and Sports Traumatology, Dreifaltigkeits-Krankenhaus GmbH, Aachener Str. 445-449, 50933 Koeln (Germany); Drescher, W. [Department of Orthopaedics, Christian Albrechts University, Kiel (Germany); Becker, C. [Department of Orthopaedics, Heinrich Heine University, Duesseldorf (Germany); Sangill, R.; Stoedkilde-Joergensen, H. [Institute for Magnetic Resonance Imaging Tomography, University of Aarhus, Skejby Hospital, Aarhus (Denmark); Heydthausen, M. [Computing Center, Heinrich Heine University, Duesseldorf (Germany); Hansen, E.S.; Buenger, C. [Spine Section, Department of Orthopaedics, University of Aarhus (Denmark)

    2003-02-01

    To examine the potential of gadolinium (Gd)-enhanced dynamic MRI in the detection of early femoral head ischemia. Furthermore, to apply a three-compartment model to achieve a clinically applicable MR index for femoral head perfusion during the steady state and arterial hip joint tamponade.Design and materials In a porcine model femoral head perfusion was measured by radioactive tracer microspheres and by using a dynamic Gd-enhanced MRI protocol. Femoral head perfusion measurements and MRI tests were performed unilaterally before, during and after the experimentally induced ischemia of one of the hip joints. Ischemia was induced by increasing intra-articular pressure to 250 mmHg. All pigs showed ischemia of the femoral head epiphysis under hip joint tamponade followed by reperfusion to the same level as before joint tamponade. In two cases perfusion after removal of tamponade continued to be low. In dynamic MRI measurements increases in signal intensity were seen after intravenous infusion of Gd-DTPA, followed by a slow decrease in signal intensity. The signal-intensity curve during femoral head ischemia had a minor increase. Also the coefficient determined was a helpful indicator of femoral head ischemia. Femoral head blood flow as measured by microspheres fell significantly under joint tamponade. Early detection of this disturbed regional blood flow was possible using a dynamic MRI procedure. A biomathematical model resulted from the evaluation of the intervals of signal intensity over time which allows detection of bone blood flow changes at a very early stage. Using this new method earlier detection of femoral head necrosis may be possible. (orig.)

  3. Abnormal Development of the Femoral Head Epiphysis in an Infant with no Developmental Dysplasia of the Hip Apparent on Ultrasonography

    OpenAIRE

    Atalar, Hakan; Gunay, Cuneyd; Aytekin, Mahmut Nedim

    2014-01-01

    Introduction: In the investigation of hip development in newborns and infants, ultrasonography and radiography are widely used, but their optimal roles in this setting remain controversial. Case Report: Here we describe an 8.5-month-old infant who had undergone hip radiography at a primary care facility and was referred to our hospital to be evaluated for developmental dysplasia of the hip. Ultrasonography showed no developmental dysplasia of the hip according to standard criteria, but develo...

  4. Atherosclerotic femoral artery aneurysms

    DEFF Research Database (Denmark)

    Levi-Mazloum, Niels Donald; Schroeder, T V

    1996-01-01

    Based on a clinical suspicion of an increase in the proportion of deep femoral aneurysms, we reviewed the case records of patients who underwent reconstructive procedures for femoral aneurysms to investigate if this could be confirmed and explained by selection of patient or modality of diagnosis...

  5. Chondroblastoma of the femoral neck as a cause of hip synovitis.

    Science.gov (United States)

    Kaneko, Hiroshi; Kitoh, Hiroshi; Wasa, Junji; Nishida, Yoshihiro; Ishiguro, Naoki

    2012-03-01

    Chondroblastoma is a rare benign chondroid bone tumor, which typically arises from the epiphysis of a long tubular bone. We present a 13-year-old girl with persistent hip synovitis caused by a chondroblastoma that arose from the femoral neck (metaphysis) and uniquely extended extraosseously into the hip joint. Computed tomography scan clearly demonstrated a tumoral lesion of the left femoral neck and a periosteal reaction along the anterior cortex of the femur, distal to the legion. Magnetic resonance imaging showed reactive synovitis with marked joint effusion of the hip and an extensive edema in the proximal femur and the surrounding soft tissues. Aneurysmal bone cysts formation secondary to chondroblastoma was confirmed by histologic examinations of the excised specimens. Complete relief of pain and an improvement in the range of movement of the hip joint was obtained after surgical resection of the tumor.

  6. Stress fracture of the proximal humeral epiphysis in an elite junior badminton player.

    OpenAIRE

    Boyd, K T; Batt, M E

    1997-01-01

    An elite junior badminton player presented with a chronic painful dominant shoulder after an intense training course. An acute stress fracture to the proximal humeral epiphysis was found. Two-plane radiography will identify abnormalities of the growth plate but comparative films of the unaffected side may also be required to differentiate subtle changes. Rest with subsequent rehabilitation is the appropriate management of these injuries although ideally they should be subjected to primary pre...

  7. Asymmetry and structural system analysis of the proximal femur meta-epiphysis: osteoarticular anatomical pathology

    OpenAIRE

    Baydoun Safaa; Kolesnik Alexander I; Haddad John J; Ivanov Alexander V; Samaha Ali A; Arabi Maher R; Yashina Irena N; Samaha Rana A; Ivanov Dimetry A

    2008-01-01

    Abstract Background The human femur is commonly considered as a subsystem of the locomotor apparatus with four conspicuous levels of organization. This phenomenon is the result of the evolution of the locomotor apparatus, which encompasses both constitutional and individual variability. The work therein reported, therefore, underlies the significance of observing anatomical system analysis of the proximal femur meta-epiphysis in normal conditions, according to the anatomic positioning with re...

  8. [Femoral bone morphogenesis in human fetuses in the area of environmental fluoride pollution].

    Science.gov (United States)

    Shalina, T I; Vasil'eva, L S

    2010-01-01

    The aim of this study was to determine the peculiarities of femoral bone osteogenesis in human fetuses in the areas with different levels of environmental pollution with fluoride compounds (the city of Irkutsk and the town of Shelekhov). The histological structure of femoral bones was studied in 70 fetuses aged 15-16, 19-20, 22-25 and 27-29 gestational weeks. Morphometric methods were used to evaluate the number of blood vessels per total area of epiphysis, the length of endochondral trabeculae, the thickness of hypertrophic and columnar cartilage zones, diaphysis wall and its trabeculae thickness, the thickness of endochondral trabeculae merging with the diaphysis wall, and of the bone growing on the epiphysis. It was found that in the city of Irkutzk, relatively remote from the pollution source, the processes of osteogenesis and osteoresorption are balanced and are characterized by the prevalence of osteoblastic activity over osteoclastic activity, ensuring the active bone growth. During weeks 15-22, the bones are actively growing in length, while during weeks 22-29 they grow mainly in width. In the town of Shelekhov, located closely to the pollution source, the growth of bones in both length and width, is delayed. The bone growth was active till week 16, however, during weeks 18-29, osteoresorption prevailed over the osteosynthesis, the bone thickness decreased, while the activity of their growth in length remained reduced. PMID:20593589

  9. Anomalies of ossification in the posterolateral femoral condyle: assessment by MRI

    Energy Technology Data Exchange (ETDEWEB)

    Nawata, K.; Teshima, Ryota; Morio, Yasuo; Hagino, Hiroshi [Department of Orthopaedic Surgery, Faculty of Medicine, Tottori University, Yonaga (Japan)

    1999-10-01

    Background. Anomalies of ossification in the lower femoral epiphysis are often radiographically indistinguishable from juvenile osteochondritis dissecans. Objective. To clarify the MRI characteristics of the anomalies of ossification in the posterolateral femoral condyle that distinguish it from juvenile osteochondritis dissecans. Materials and methods. We retrospectively examined the medical records, plain radiographs (n = 4), MRI (n = 4) and follow-up MRI (n = 2) of four boys (age 8-11 years) with anomalies of ossification in the posterolateral femoral condyle. Results. Plain radiography showed symmetrical marginal irregularity of the posterolateral femoral condyles of both knees. These lesions were asymptomatic, and the areas of irregular radiographic appearances reduced in size or disappeared without treatment within a mean observation period of 3.5 months. MRI showed a clearly demarcated low-intensity islet with the same signal intensity as subchondral bone (which was considered to be an accessory ossification nucleus) in a high-signal area in which the signal intensity was equal to that of normal articular cartilage. The areas observed as radiolucent zones on plain radiography were visualised at the same signal intensity as articular cartilage, and were continuous with articular cartilage on MRI; thus they were regarded as uncalcified cartilage. These MR findings are different from MR images of osteochondritis dissecans. Conclusions. MRI is considered to be the most effective non-invasive diagnostic method for these two conditions. (orig.) With 3 figs., 1 tab., 10 refs.

  10. Ewing's sarcoma/primitive neuroectodermal tumor of the proximal humeral epiphysis.

    Science.gov (United States)

    Morris, Parisa; Dickman, Paul S; Seidel, Matthew J

    2013-01-01

    Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) of bone is a rare childhood tumor most commonly located in the metadiaphysis. In skeletally immature patients, lesions of the epiphysis are rarely malignant, with the most common diagnosis being chondroblastoma. This article presents a case of ES/PNET of the proximal humeral epiphysis in a 12-year-old boy. To the authors' knowledge, this is the first reported case of epiphyseal ES/PNET confirmed with molecular testing. Radiographs of the patient's painful shoulder showed a well-defined lytic lesion within the humeral epiphysis. Magnetic resonance imaging suggested a chondroid tumor with surrounding edema. Based on the imaging characteristics, the patient's age, and the lesion's location, a preliminary diagnosis of chondroblastoma was made. A trochar biopsy of the lesion demonstrated a small, round, blue cell tumor on frozen section. Subsequently, immunohistochemical staining was uniformly positive in a membrane pattern for CD99, and molecular diagnostic testing demonstrated a EWSR1/FLI1 fusion transcript, confirming the pathologic diagnosis of ES/PNET. Although metadiaphyseal locations for ES/PNET are most common, this case adds to previously reported cases of epiphyseal ES/PNET, suggesting that the diagnosis be considered for pediatric epiphyseal tumors. This case also demonstrates why following rigorous oncologic treatment algorithms by obtaining a limited trochar biopsy, even in the case of a confident radiographic diagnosis, is critically important; the biopsy results can lead to a major change in treatment and avoid contamination of a larger area of soft tissue and bone. PMID:23276342

  11. From capital to capital

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    HOW easy it is for one who lives in Beijing, capital of the country, to have the impression that all things significant happen there! This is to forget how there are now many provincial capitals in China, that are rapidly modernizing. In order to achieve such modernization, these cities, like

  12. Femoral shaft fractures

    International Nuclear Information System (INIS)

    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

  13. [Long-term consequences of resection of 1/3 proximal epiphysis of child's right tibia--a case study].

    Science.gov (United States)

    Duda, Sławomir; Jasiewicz, Barbara; Potaczek, Tomasz; Tęsiorowski, Maciej

    2015-01-01

    Authors report a case of a patient with varus deformity of right knee, caused by wide resection of proximal metaphysis and epiphysis of right tibia. Afore mentioned procedure led to loss of right knee joint integrity, with its lateral instability, shortening, and axis deviation of right tibia. Surgical treatment of this complications was performed in several stages and took about 5 years, starting from temporal, lateral hemiepiphysiodesis of proximal tibial epiphysis, subacute epiphysiolysis of proximal tibial epiphysis and high valgus tibia osteotomy, at the end finished with medial tibia condyle reconstruction with autogenic graft and osteoconductive substances. The proper mechanical and anatomical axis of the right limb, with full stability and movement of right knee was achieved after those surgeries. The process of treatment of lower extremity axis deviation takes long time, frequently involves several surgeries and needs firm cooperation between doctor and patient.

  14. Effect of growth plate geometry and growth direction on prediction of proximal femoral morphology.

    Science.gov (United States)

    Yadav, Priti; Shefelbine, Sandra J; Gutierrez-Farewik, Elena M

    2016-06-14

    Mechanical stimuli play a significant role in the process of endochondral growth. Thus far, approaches to understand the endochondral mechanical growth rate have been limited to the use of approximated location and geometry of the growth plate. Furthermore, growth has been simulated based on the average deflection of the growth plate or of the femoral neck. It has also been reported in the literature that the growth plate lies parallel to one of the principal stresses acting on it, to reduce the shear between epiphysis and diaphysis. Hence the current study objectives were (1) to evaluate the significance of a subject-specific finite element model of the femur and growth plate compared to a simplified growth plate model and (2) to explore the different growth direction models to better understand proximal femoral growth mechanisms. A subject-specific finite element model of an able-bodied 7-year old child was developed. The muscle forces and hip contact force were computed for one gait cycle and applied to a finite element model to determine the specific growth rate. Proximal femoral growth was simulated for two different growth direction models: femoral neck deflection direction and principal stress direction. The principal stress direction model captured the expected tendency for decreasing the neck shaft angle and femoral anteversion for both growth plate models. The results of this study suggest that the subject-specific geometry and consideration of the principal stress direction as growth direction may be a more realistic approach for correct prediction of proximal femoral growth morphology. PMID:27063249

  15. 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...

  16. Posterior sternoclavicular Salter-Harris fracture-dislocation in a patient with unossified medial clavicle epiphysis.

    Science.gov (United States)

    Beckmann, Nicholas; Crawford, Lindsay

    2016-08-01

    Sternoclavicular injuries are relatively rare, composing less than 1 % of all musculoskeletal fractures or dislocations. When sternoclavicular injuries do occur, they typically present as an isolated dislocation of the sternoclavicular joint without associated fracture of the clavicle or manubrium. However, in patients with unfused medial clavicle physis, sternoclavicular joint injuries can present as a fracture-dislocation through the unfused physis. These physeal injuries are important to recognize as the displaced epiphysis can block reduction of the sternoclavicular joint. We present a case of a 15-year-old female basketball player presenting with suspected sternoclavicular joint injury after sustaining a direct blow to the left shoulder. An initial shoulder CT confirmed the presence of the clinically suspected posterior sternoclavicular dislocation without fracture identified. An MRI of the left sternoclavicular joint was then performed for suspected physeal fracture, which confirmed the presence of a fracture through the medial clavicle physis with anterior displacement of the unossified epiphysis, blocking reduction of the metaphysis. Given the findings on MRI, the pediatric orthropedic surgeon was able to counsel the family of the high likelihood of failed closed reduction of the sternoclavicular joint requiring conversion to open reduction and internal fixation. The patient underwent successful open reduction and internal fixation of the medial clavical physeal fracture after an initial gentle attempt at closed reduction was unsuccessful. PMID:27107998

  17. Estimation of pretraumatic femoral antetorsion in bilateral femoral shaft fractures

    Energy Technology Data Exchange (ETDEWEB)

    Citak, Musa; Jagodzinski, Michael; Krettek, Christian; Huefner, Tobias [Hannover Medical School, Trauma Department, Hannover (Germany); Citak, Mustafa [BG-University Hospital Bergmannsheil, Department of Surgery, Bochum (Germany); Kendoff, Daniel; O' Loughlin, Padhraig F. [Hospital for Special Surgery, Orthopaedic Department, New York, NY (United States); Tavassol, Frank [Hannover Medical School, Department of Oral and Maxillofacial Surgery, Hannover (Germany)

    2009-12-15

    To describe a system for measurement of the pretraumatic femoral antetorsion angle post-bilateral femoral shaft fracture with the use of new imaging software which allows segmentation and three dimensional (3D) reconstruction of DICOM (digital imaging and communications in medicine) images. This case involved a 20-year-old patient with bilateral femoral shaft fractures. Following initial clinical examination, CT scans of both femurs were performed. Subsequently, the DICOM datasets were uploaded to the new software tool. Following segmentation and 3D reconstruction, pretraumatic femoral antetorsion angles were determined. Femoral antetorsion was described and assessed in two ways by referring to the intersection of the posterior condylar plane and (1) a line drawn between the center of the femoral head and femoral neck, (2) a line drawn between the centers of the femoral head and greater trochanter. Using these definitions, values for femoral antetorsion were found to be, respectively, 20 at the right fracture site and 19 on the left site, and 33 bilaterally. The investigators describe in this current technical report the use of new imaging software which enables the calculation of femoral AV following reduction of virtual fracture fragments which are created from standard DICOM images. We believe that this 3D reconstruction method of measuring the antetorsion angle can be integrated into a regular treatment algorithm and may potentially optimize clinical outcomes. (orig.)

  18. Estimation of pretraumatic femoral antetorsion in bilateral femoral shaft fractures

    International Nuclear Information System (INIS)

    To describe a system for measurement of the pretraumatic femoral antetorsion angle post-bilateral femoral shaft fracture with the use of new imaging software which allows segmentation and three dimensional (3D) reconstruction of DICOM (digital imaging and communications in medicine) images. This case involved a 20-year-old patient with bilateral femoral shaft fractures. Following initial clinical examination, CT scans of both femurs were performed. Subsequently, the DICOM datasets were uploaded to the new software tool. Following segmentation and 3D reconstruction, pretraumatic femoral antetorsion angles were determined. Femoral antetorsion was described and assessed in two ways by referring to the intersection of the posterior condylar plane and (1) a line drawn between the center of the femoral head and femoral neck, (2) a line drawn between the centers of the femoral head and greater trochanter. Using these definitions, values for femoral antetorsion were found to be, respectively, 20 at the right fracture site and 19 on the left site, and 33 bilaterally. The investigators describe in this current technical report the use of new imaging software which enables the calculation of femoral AV following reduction of virtual fracture fragments which are created from standard DICOM images. We believe that this 3D reconstruction method of measuring the antetorsion angle can be integrated into a regular treatment algorithm and may potentially optimize clinical outcomes. (orig.)

  19. Intellectual Capital.

    Science.gov (United States)

    Snyder, Herbert W.; Pierce, Jennifer Burek

    2002-01-01

    This review focuses on intellectual capital and its relationship to information professionals. Discusses asset recognition; national practices and the acceptance of intellectual capital; definitions of intellectual capital; measuring intellectual capital, including multiple and single variable measures; managing intellectual capital; and knowledge…

  20. Acute femoral neck fracture

    International Nuclear Information System (INIS)

    Ten patients with traumatic femoral neck fracture were studied with MR imaging (0.5 T, Magnetom, Siemens): unenhanced (multiecho, TR/TE = 1,600/30--240 [repetition time/echo time, msec]; gradient echo, TR/TE = 315/14, θ = 90 degrees) and Gd-DTPA enhanced (0.1 mM/kg body weight, Magnevist, Schering; gradient echo, TR/TE = 315/14, θ = 90 degrees). MR images were compared with clinical-radiographic findings. Digital subtraction angiography of the femoral head (FH) in five patients showed complete interruption of blood supply to the FH in three patients (signal intensity of FH did not increase on postcontrast images) and intact FH arteries in two patients (FH signal increased on postcontrast images, as did the healthy-side signal)

  1. Proximal Focal Femoral Deficiency

    Directory of Open Access Journals (Sweden)

    Vishal Kalia, Vibhuti

    2008-01-01

    Full Text Available Proximal focal femoral deficiency (PFFD is a developmental disorder of the proximal segment of thefemur and of acetabulum resulting in shortening of the affected limb and impairment of the function. It isa spectrum of congenital osseous anomalies characterized by a deficiency in the structure of the proximalfemur. The diagnosis is often made by radiological evaluation which includes identification and descriptionof PFFD and evaluation of associated limb anomalies by plain radiographs. Contrast arthrography orMagnetic Resonance Imaging is indicated when radiological features are questionable and to disclose thepresence and location of the femoral head and any cartilagenous anlage. The disorder is more commonlyunilateral and is apparent at birth. However, bilateral involvement is rarely seen. Therapy of the disorder isdirected towards satisfactory ambulation and specific treatment depending on the severity of dysplasia.

  2. Erotic Capital

    OpenAIRE

    Jensen, Natalie Madeleine; Jensen, Benjamin; Engstrøm, Emma; Maas, Jannik; Majchrzak, Izabela

    2016-01-01

    This project “Erotic Capital” concerns the topic and theory of Erotic Capital, coined by Catherine Hakim. The idea of Erotic Capital derives from Pierre Bourdieu’s theory of Personal Capitals – in this, Erotic Capital is discussed as an additional Personal Capital. In connection to the investigation of the theory Erotic Capital, certain theories of Feminism, Masculinity, Femininity, Gender and Cultural Differences are explored and examined. This is done in order to study how these theories...

  3. Isolation and characterization of novel murine epiphysis derived mesenchymal stem cells.

    Directory of Open Access Journals (Sweden)

    Chun-Chun Cheng

    Full Text Available BACKGROUND: While bone marrow (BM is a rich source of mesenchymal stem cells (MSCs, previous studies have shown that MSCs derived from mouse BM (BMMSCs were difficult to manipulate as compared to MSCs derived from other species. The objective of this study was to find an alternative murine MSCs source that could provide sufficient MSCs. METHODOLOGY/PRINCIPAL FINDINGS: In this study, we described a novel type of MSCs that migrates directly from the mouse epiphysis in culture. Epiphysis-derived MSCs (EMSCs could be extensively expanded in plastic adherent culture, and they had a greater ability for clonogenic formation and cell proliferation than BMMSCs. Under specific induction conditions, EMSCs demonstrated multipotency through their ability to differentiate into adipocytes, osteocytes and chondrocytes. Immunophenotypic analysis demonstrated that EMSCs were positive for CD29, CD44, CD73, CD105, CD166, Sca-1 and SSEA-4, while negative for CD11b, CD31, CD34 and CD45. Notably, EMSCs did not express major histocompatibility complex class I (MHC I or MHC II under our culture system. EMSCs also successfully suppressed the proliferation of splenocytes triggered by concanavalin A (Con A or allogeneic splenocytes, and decreased the expression of IL-1, IL-6 and TNF-α in Con A-stimulated splenocytes suggesting their anti-inflammatory properties. Moreover, EMSCs enhanced fracture repair, ameliorated necrosis in ischemic skin flap, and improved blood perfusion in hindlimb ischemia in the in vivo experiments. CONCLUSIONS/SIGNIFICANCES: These results indicate that EMSCs, a new type of MSCs established by our simple isolation method, are a preferable alternative for mice MSCs due to their better growth and differentiation potentialities.

  4. Prospective evaluation of femoral head viability following femoral neck fracture

    International Nuclear Information System (INIS)

    The bone scans of 33 patients (pts) with recent subcapital fractures (fx) of the femur were evaluated prospectively to determine their value in predicting femoral head visability. Each of the 33 pts (ll men, 22 women, age range 30-92) had a pre-operative bone scan within 72 hrs of the fx (23 pts within 24 hrs). Anterior and posterior planar views of both hips and pinhole views (50% of pts) were obtained 2 hrs after administration of Tc-99m HDP. The femoral head was classified as perfused if it showed the same activity as the opposite normal side or if it showed only slightly decreased activity. Femoral heads showing absent activity were classified as nonperfused. Overall, 20 of the 33 pts showed a photopenic femoral head on the side of the fx. Only 2 pts showed increased activity at hte site of the fx. Internal fixation of the fx was performed in 23 pts, 12 of whom had one or more follow-up scans. Five of these 12 pts showed absent femoral head activity on their initial scan, but 2 showed later reperfusion. The other 7 pts showed good perfusion initially, with only 1 later showing decreased femoral head activity. The other 10 pts (7 of whom had absent femoral head activity) had immediate resection of the femoral head and insertion of a Cathcart prosthesis. The results suggest that femoral head activity seen on a bone scan in the immediate post-fx period is not always a reliable indicator of femoral head viability. Decreased femoral head activity may reflect, in part, compromised perfusion secondary to post-traumatic edema, with or without anatomic disruption of the blood supply

  5. Intellectual Capital

    DEFF Research Database (Denmark)

    Mouritsen, Jan; Bukh, Per Nikolaj

    2015-01-01

    Intellectual capital (IC) consists of human capital, organizational capital, and relational capital, and their relationships. It has been said to be important to explain the difference between market value and book value of a firm, but measurement of IC is more likely to be important because...

  6. Changes in microarchitectural characteristics at the tibial epiphysis induced by collagen-induced rheumatoid arthritis over time

    Directory of Open Access Journals (Sweden)

    Lee JH

    2012-09-01

    Full Text Available Joo Hyung Lee,1 Keyoung Jin Chun,2 Han Sung Kim,3 Sang Ho Kim,4 Kwon-Yong Lee,1,6 Dae Jun Kim,5,6 Dohyung Lim,1,61Department of Mechanical Engineering, Sejong University, Seoul, Republic of Korea; 2Gerontechnology R & D Group, Korea Institute of Industrial Technology, Cheonan, Chungnam, Republic of Korea; 3Department of Biomedical Engineering, Yonsei University, Wonju, Gangwon, Republic of Korea; 4Department of Bioengineering and Department of Surgery, National University of Singapore, Singapore; 5Department of Advanced Material Engineering, 6Bioengineering Research Center, Sejong University, Seoul, Republic of KoreaBackground: Little is known about the time course of changes in the microarchitecture of the tibial epiphysis with rheumatoid arthritis (RA, although such information would be valuable in predicting risk of fracture. Therefore, we used in vivo microcomputed tomography (µ-CT to assess patterns of microarchitectural alterations in the tibial epiphysis using collagen-induced RA in an animal model.Methods: Bovine type II collagen was injected intradermally into the tails of rats for induction of RA. The tibial joints were scanned by in vivo µ-CT at 0, 4, and 8 weeks following injection. Microarchitectural parameters were measured to evaluate alteration patterns of bone microarchitecture at the tibial epiphysis.Results: The microarchitectural alterations in an RA group were significantly different from those in a control group from 0 to 4 weeks and from 4 to 8 weeks following injection (P < 0.05. The distribution of trabecular bone thickness and trabecular bone separation from 0 weeks to 8 weeks differed significantly (P < 0.05.Conclusion: These results indicate that the patterns of microarchitectural alterations at the tibial epiphysis are strongly affected by collagen-induced progression of RA and entail a severe risk of fracture at the tibial epiphysis. This study represents a valuable first approach to tracking periodic and

  7. Femoral pseudoaneurysms in drug addicts

    DEFF Research Database (Denmark)

    Levi-Mazloum, Niels Donald; Rørdam, Peter; Jensen, L P;

    1997-01-01

    OBJECTIVE: To evaluate the outcome of treatment of femoral pseudoaneurysms in drug addicts. METHODS: The records of eight patients undergoing vascular surgery for femoral pseudoaneurysms from substance abuse identified from a vascular database were reviewed. RESULTS: Were good in four out of five...

  8. Photopenia of the femoral head on 3 phase bone scan using Tc-99m MDP with acute irritable hip in the preschool children: comparison with MR findings

    Energy Technology Data Exchange (ETDEWEB)

    Ryu, Young Hoon; Lee, Jong Doo; Yoon, Choon Sik; Suh, Jin Suck; Jeon, Tae Joo [College of Medicine, Yonsei Univ., Seoul (Korea, Republic of)

    1998-07-01

    The child with acute irritable hip is always a diagnostic challenge. Photopenia of femur head is described in Legg-Calve-Perthes disease (LCP). However, it can be seen in cases of septic arthritis (SA) with interruption of vascular supply. Despites being uncommon, recognition of SA as a cause of photopenia is important and requires urgent referral to decompression and drainage. This study was to evaluate causes and scintigraphic features of photopenia of femur head in patients with acute irritable hip and to correlate them with MR findings. 15 patients with acute irritable hip showed photopenia of femur head on bone scan were included. Mean age was 5.3 yrs ( 9 months to 8 yrs). There were 9 patients with LCP and 3 with septic arthritis combined with osteomyelitis. All parents underwent 3 phase bone scan and hip MRI within 2 days interval. Patterns of photopenia of femur head was divided into partial, complete and extending to the metaphysis. All patients with LCP showed partial photopenia confined to femur epiphysis. Whereas, 1 with septic arthritis demonstrated complete photopenia of femur head and in 2 with septic arthritis and 3 with septic arthritis combined with osteomyelitis revealed complete photopenia of femur head extending to the metaphyseal area. In cases with septic arthritis, increased uptake affecting both sides of hip joint except for photopenic area is also noted. On MRI, all patients with LCP showed abnormalities confined to the epiphysis. In cases with septic arthritis, abnormalities are not confined to the epiphysis and marrow edema and joint effusion were also noted. In evaluating photopenia of the femur head, it would be helpful to distinguish between the photopenia localized to the femoral epiphysis as seen in cases of LCP and complete photopenia of femur head with extension to the metaphysis as seen in cases of septic arthritis. Recognition of complete with extension to the metaphysis help guide urgent proper management of septic arthritis.

  9. Scintigraphical observation of femoral head in femoral neck fractures

    International Nuclear Information System (INIS)

    In IO cases of femoral neck fracture treated with prosthetic replacement, the preopera tive sup(99m)Tc-MDP scintigraphs were investigated and then compared with each histological findings of the extracted femoral head. The appearances of the scintigraphs were classified into following 3 patterns; increased activity pattern of sup(99m)Tc-MDP uptake in the overall femoral head (type I) in 4 cases, deficient activity pattern at the lateral side correspond to weight-bearing area (type II) in 2 cases and considerably deficient activity pattern in the whole femoral head (type III) in remaining 4 cases. Histological examination of the extracted femoral heads revealed the narrow part of ischemic necrosis in type I. However type II showed extensive necrosis in the portion of deficient activity by scintigraphs and in type III, the femoral heads except articular cartilage were entirely necrotic. This classification of sup(99m)Tc-MDP scintigraphy is correlated with the degree of femoral head necrosis and it can be emphasized that the preoperative scintigraphy is a useful method to select osteosynthesis or prosthetic replacement treatment, etc. (author)

  10. Inactivated Bone Replantation with Preservation of the Epiphysis in Children with Osteosarcoma- Clinical Report of Two Cases

    Institute of Scientific and Technical Information of China (English)

    YUXiuchun; LIUXiaoping; ZHOUYin; LIKaihua; QUZaiping

    2005-01-01

    Objective: To evaluate the value of inactivated bone replantation with preservation of the epiphysis following the effective chemotherapy in avoiding postoperative discrepancy of the affected limb in children with osteosarcoma. Methods: Two children (aged 5 and 10 years, 1 male and 1 female) with osteosarcoma underwent inactivated bone replantation with preserving epiphysis following chemotherapy (MMIA protocol, including high-dose methotrexate, adriamycin and ifosfamide). After two cycles of preoperative chemotherapy, pain vanished, the local mass shrank and there was no pain on pressing the affected parts. Sera AKP and LDH were reduced to normal levels; marked shrinkage and sclerotic changes and good margin of lesions were seen on plain radiographs and MR images. Two courses of the same protocol as preoperative chemotherapy were administered postoperatively. Results: Postoperative histological examination of the specimens demonstrated absence of vital tumor cells. Incisions healed well and no complications occurred. The replanted inactivated bone healed with host at 6 months after operation.In the two patients, no evidence was seen of metastasis and recurrence and discrepancy of the affected limbs in postoperative 36 and 48 months. Functions of the affected limbs were satisfactory. Conclusion:Inactivated bone replantation with preserving epiphysis was a viable option for osteosarcoma in children.The long-term outcomes remain to be further proven.

  11. 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.

  12. Displaced Capital

    OpenAIRE

    Valerie A. Ramey; SHAPIRO, MATTHEW D

    1998-01-01

    This paper studies the efficiency with which physical capital can be reallocated across sectors. It presents a model of a firm selling specialized capital in a thin resale market. The model predicts that the selling price depends not only on the sectoral specificity of capital, but also on the thinness of the market and the discount factor of the firm. It then provides empirical evidence on the sectoral mobility of capital based on equipment-level data from aerospace industry auctions. These ...

  13. Femoral shaft fracture fixed with intramedullary nailing in a child resulting in femoral neck narrowing deformity and fracture

    Institute of Scientific and Technical Information of China (English)

    WAN Lin; ZHAO Lin; LIU Yan-qing; WANG Xu; LIU Jing-sheng

    2008-01-01

    @@ Treatment of factures in children is different from that of adults because improper internal fixation,including selection of internal fixation device and epiphysis approaching,may cause epiphysis injury,which may result in a series of secondary lesions in bone development,such as growth arrest,limb length discrepancy, osteonecrosis, and other deformities.

  14. Measuring Capital

    OpenAIRE

    W. Erwin Diewert

    2003-01-01

    The paper revisits Harper, Berndt and Wood (1989) and calculates Canadian reproducible capital services aggregates under alternative assumptions about the form of depreciation, the opportunity cost of capital and the treatment of capital gains. Five different models of depreciation are considered: (1) one hoss shay; (2) straight line depreciation; (3) declining balance or geometric depreciation; (4) linearly declining efficiency profiles and (5) linearly increasing maintenance profiles. The l...

  15. Capital gains

    International Nuclear Information System (INIS)

    This article examines African and Middle East oil and natural gas project financing. Capital markets financing, Ras Laffan's project bonds, capital market issues in Saudi Arabia, the movement toward gas and away from oil, and Islamic opportunities are discussed, African and Middle East oil and gas projects are listed. (UK)

  16. Celebration Capitalism

    OpenAIRE

    Boykoff, Jules

    2014-01-01

    Capitalism is a nimble shapeshifter. In this talk Jules Boykoff draws from the history of the Olympic Games to offer a theory of “celebration capitalism,” a form of modern-day economics that complements Naomi Klein’s “disaster capitalism” marked by neoliberalism: privatization, deregulation, and free-market rhetoric.

  17. Pseudopathologic fracture of the femoral neck

    International Nuclear Information System (INIS)

    We have seen two cases of traumatic subcapital fractures of the femoral neck which resembled pathologic fractures on plain radiography. We have named this entity pseudopathologic fracture of the femoral neck and offer suggestions for why it occurs. (orig.)

  18. Femoral neck shortening after internal fixation

    OpenAIRE

    LIU, YUE; AI, Zi Sheng; Shao, Jin; Yang, Tieyi

    2014-01-01

    Objective: The aim of this study was to assess the factors affecting femoral neck shortening after internal fixation of femoral neck fractures. Methods: Eighty-six patients with femoral neck fractures were treated using three parallel cannulated screws between May 2004 and January 2011. The shortening of the femoral neck in the horizontal (X), vertical (Y), and along the resultant along the (Z) vector (XÆ, YÆ, ZÆ) was measured on anteroposterior radiographs corrected by screw diameter and ...

  19. CAPITAL STRUCTURE AND VENTURE CAPITAL

    Directory of Open Access Journals (Sweden)

    Becsky-Nagy Patricia

    2015-07-01

    Full Text Available Venture capital significantly changes the capital structure of the portfolio company at the time of the investment. Venture capitalists contribute to the company’s success through their active involvement in the management and their added value appears in the increase of the value of the equity. At the same time with taking active role in the management, agency problem occurs, that complicates the cooperation and the success of exit. In this article we search the answer for the question whether the preferred equity, that are commonly used in the US for bridging the agency problem, are used and able to help Hungarian venture capitalists to manage agency problems. On the other hand we examined how the venture capital affect capital structure, how the venture capitalists value added appear in the capital structure. During the evaluation of the three case studies, we came to the conclusion, that the venture capital investments have positive effect on the liabilities of the enterprises, as the capital structure indexes show. However, the investors need the ownership, which help them to step up resolutely, when things change for the worse, and companies need the expertise, which the investors bring with their personal assistance. The investor’s new attitude also has positive effect on a mature company, which has an experienced leader, because he can show another aspect, as a person who come from outside. During the examination of the capital structure, we cannot disregard the events of the company’s environment, which have effects on the firm. The investor’s decisions also appear different ways. Because of this, every venture capital investment is different, just as the capital structure of the firms, in which they invest.

  20. Intra-epiphyseal stress injury of the proximal tibial epiphysis: Preliminary experience of magnetic resonance imaging findings

    Energy Technology Data Exchange (ETDEWEB)

    Tony, G., E-mail: drgtony@gmail.com [Stafford General Hospital, Weston Road, Stafford, Staffordshire ST16 3SA (United Kingdom); Charran, A., E-mail: amandacharran@yahoo.com [Hillingdon Hospital, Pield Heath Rd, Uxbridge, Middlesex UB8 3NN (United Kingdom); Tins, B., E-mail: bernhard.tins@rjah.nhs.uk [Department of Diagnostic Imaging, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom); Lalam, R., E-mail: radhesh.lalam@rjah.nhs.uk [Department of Diagnostic Imaging, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom); Tyrrell, P.N.M., E-mail: prudencia.tyrrell@rjah.nhs.uk [Department of Diagnostic Imaging, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom); Singh, J., E-mail: jaspreet.singh@rjah.nhs.uk [Department of Diagnostic Imaging, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom); Cool, P., E-mail: paul.cool@rjah.nhs.uk [Orthopaedic Oncology, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom); Kiely, N., E-mail: nigel.kiely@rjah.nhs.uk [Paediatric Orthopaedics, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom); Cassar-Pullicino, V.N., E-mail: Victor.Pullicino@rjah.nhs.uk [Department of Diagnostic Imaging, Robert Jones and Agnes Hunt, Orthopaedic Hospital, Oswestry, Shropshire SY10 7 AG (United Kingdom)

    2014-11-15

    Highlights: • Purely intra-epiphyseal stress injuries of the proximal tibial epiphysis are described for the first time. • The variation in the MRI findings of these injuries depending on the stage of maturation is demonstrated. • We postulate a patho-mechanism to explain the variations in site and appearance of stress injuries in this region. - Abstract: Stress induced injuries affecting the physeal plate or cortical bone in children and adolescents, especially young athletes, have been well described. However, there are no reports in the current English language literature of stress injury affecting the incompletely ossified epiphyseal cartilage. We present four cases of stress related change to the proximal tibial epiphysis (PTE) along with their respective magnetic resonance imaging (MRI) appearances ranging from subtle oedema signal to a pseudo-tumour like appearance within the epiphyseal cartilage. The site and pattern of intra-epiphyseal injury is determined by the type of tissue that is affected, the maturity of the skeleton and the type of forces that are transmitted through the tissue. We demonstrate how an awareness of the morphological spectrum of MRI appearances in intra-epiphyseal stress injury and the ability to identify concomitant signs of stress in other nearby structures can help reduce misdiagnosis, avoid invasive diagnostic procedures like bone biopsy and reassure patients and their families.

  1. Intra-epiphyseal stress injury of the proximal tibial epiphysis: Preliminary experience of magnetic resonance imaging findings

    International Nuclear Information System (INIS)

    Highlights: • Purely intra-epiphyseal stress injuries of the proximal tibial epiphysis are described for the first time. • The variation in the MRI findings of these injuries depending on the stage of maturation is demonstrated. • We postulate a patho-mechanism to explain the variations in site and appearance of stress injuries in this region. - Abstract: Stress induced injuries affecting the physeal plate or cortical bone in children and adolescents, especially young athletes, have been well described. However, there are no reports in the current English language literature of stress injury affecting the incompletely ossified epiphyseal cartilage. We present four cases of stress related change to the proximal tibial epiphysis (PTE) along with their respective magnetic resonance imaging (MRI) appearances ranging from subtle oedema signal to a pseudo-tumour like appearance within the epiphyseal cartilage. The site and pattern of intra-epiphyseal injury is determined by the type of tissue that is affected, the maturity of the skeleton and the type of forces that are transmitted through the tissue. We demonstrate how an awareness of the morphological spectrum of MRI appearances in intra-epiphyseal stress injury and the ability to identify concomitant signs of stress in other nearby structures can help reduce misdiagnosis, avoid invasive diagnostic procedures like bone biopsy and reassure patients and their families

  2. Femoral Reconstruction Using External Fixation

    Directory of Open Access Journals (Sweden)

    Yevgeniy Palatnik

    2011-01-01

    Full Text Available Background. The use of an external fixator for the purpose of distraction osteogenesis has been applied to a wide range of orthopedic problems caused by such diverse etiologies as congenital disease, metabolic conditions, infections, traumatic injuries, and congenital short stature. The purpose of this study was to analyze our experience of utilizing this method in patients undergoing a variety of orthopedic procedures of the femur. Methods. We retrospectively reviewed our experience of using external fixation for femoral reconstruction. Three subgroups were defined based on the primary reconstruction goal lengthening, deformity correction, and repair of nonunion/bone defect. Factors such as leg length discrepancy (LLD, limb alignment, and external fixation time and complications were evaluated for the entire group and the 3 subgroups. Results. There was substantial improvement in the overall LLD, femoral length discrepancy, and limb alignment as measured by mechanical axis deviation (MAD and lateral distal femoral angle (LDFA for the entire group as well as the subgroups. Conclusions. The Ilizarov external fixator allows for decreased surgical exposure and preservation of blood supply to bone, avoidance of bone grafting and internal fixation, and simultaneous lengthening and deformity correction, making it a very useful technique for femoral reconstruction.

  3. Understanding Capitalism

    DEFF Research Database (Denmark)

    du Gay, Paul; Morgan, Glenn

    2013-01-01

    if they are to be sustained. Such logics are stabilized to the degree that they can pass the tests which they set themselves. The chapter shows how the projective city has increasingly failed these tests. It has instead created a privileged group of ‘mobile citizens’ working with mobile, global capital in ways......This chapter places The New Spirit of Capitalism in the context of the development of capitalism over the last twenty years, up to and including the 200-7-8 financial crisis and the ongoing economic crisis which has developed out of this and is now focused on the relationship between state...... expenditures, political legitimacy and financial markets. Boltanski and Chiapello's analysis of the projective city and connexionist logic captures important elements of capitalism in the era of neo-liberalism. However, as their analysis shows, any such logics require ‘spirit’, legitimacy and justification...

  4. Chondroblastoma with secondary aneurysmal bone cyst of the capitate.

    Science.gov (United States)

    Sato, Eiichi; Ichikawa, Jiro; Ando, Takashi; Sato, Nobutaka; Kawasaki, Tomonori; Haro, Hirotaka

    2014-05-01

    Chondroblastoma is a benign tumor that typically arises in the epiphysis of a long bone. There have been only 2 reported cases of chondroblastoma involving the capitate. This is the first report of chondroblastoma with secondary aneurysmal bone cyst involving the capitate. A 33-year-old man presented with a 3-year history of pain and swelling of the right wrist. Radiography as well as computed tomography showed a radiolucent area and no matrix calcification within the capitate. Magnetic resonance imaging revealed a homogeneous signal that was low on T1-weighted images and high on T2-weighted images and showed only slight enhancement. On the basis of imaging findings, the authors chose excisional biopsy. The bone tumor in the capitate was explored through a dorsal approach by dividing the extensor tendons. After repeated curettages, bone graft substitute using allograft bone was packed into the capitate. Histologically, the authors diagnosed this tumor as a chondroblastoma with a secondary aneurysmal bone cyst. At the final 2-year follow-up, there was evidence of bone union, full range of motion, and recovery and no evidence of recurrence. Although the recurrence of chondroblastoma is occasionally reported, the principal treatment is intralesional curettage and bone graft. High-speed burring, phenol, bone cement, and cryosurgery have been reported to reduce local recurrence. Complete excision of the carpal bone seems to be overtreatment.

  5. Chondroblastoma with secondary aneurysmal bone cyst of the capitate.

    Science.gov (United States)

    Sato, Eiichi; Ichikawa, Jiro; Ando, Takashi; Sato, Nobutaka; Kawasaki, Tomonori; Haro, Hirotaka

    2014-05-01

    Chondroblastoma is a benign tumor that typically arises in the epiphysis of a long bone. There have been only 2 reported cases of chondroblastoma involving the capitate. This is the first report of chondroblastoma with secondary aneurysmal bone cyst involving the capitate. A 33-year-old man presented with a 3-year history of pain and swelling of the right wrist. Radiography as well as computed tomography showed a radiolucent area and no matrix calcification within the capitate. Magnetic resonance imaging revealed a homogeneous signal that was low on T1-weighted images and high on T2-weighted images and showed only slight enhancement. On the basis of imaging findings, the authors chose excisional biopsy. The bone tumor in the capitate was explored through a dorsal approach by dividing the extensor tendons. After repeated curettages, bone graft substitute using allograft bone was packed into the capitate. Histologically, the authors diagnosed this tumor as a chondroblastoma with a secondary aneurysmal bone cyst. At the final 2-year follow-up, there was evidence of bone union, full range of motion, and recovery and no evidence of recurrence. Although the recurrence of chondroblastoma is occasionally reported, the principal treatment is intralesional curettage and bone graft. High-speed burring, phenol, bone cement, and cryosurgery have been reported to reduce local recurrence. Complete excision of the carpal bone seems to be overtreatment. PMID:24810829

  6. Intellectual Capital

    OpenAIRE

    Mardešič, Jakub

    2011-01-01

    The work is focused on intellectual capital and its reporting of intangible assets. First part of the work defines the basic theoretical principles, which are an essential part of the work for understanding the issue. Literature review discusses the various components of intellectual capital and focuses on their function within organizations. Work also discusses various approaches of literature and the authors developing a complex theoretical basis for this issue. The following practical part...

  7. Capitalizing China

    OpenAIRE

    Joseph Fan; Randall Morck; Bernard Yeung

    2011-01-01

    Despite a vast accumulation of private capital, China is not embracing capitalism. Deceptively familiar capitalist features disguise the profoundly unfamiliar foundations of "market socialism with Chinese characteristics." The Chinese Communist Party (CCP), by controlling the career advancement of all senior personnel in all regulatory agencies, all state-owned enterprises (SOEs), and virtually all major financial institutions state-owned enterprises (SOEs), and senior Party positions in all ...

  8. Intelligence Capital

    Directory of Open Access Journals (Sweden)

    Maid Pajevic

    2011-08-01

    Full Text Available The author of this article presents a new theoretical concept of intelligence capital, with which he explains the multi-meaningful term ‘intelligence’. The author offers a conceptual frame „intelligence capital“ as a generic complex consisting of four interactively linked elements. The contribution of this article is, among other things, an answer to a question: What is an applicative value of intelligence capital as a new theoretical concept for the sys­tem of security and intelligence of BiH? Historical context implies greater responsibility of OSA BiH in realising its preventive function of protecting security of BiH and its citizens. Theoretical frame of the intelligence capital implies that the system of security and intelligence of BiH should be able to respond to strategic questions: to know-what, to know – why, to know – how, to know – who.

  9. Acute Primary Hematogenous Osteomyelitis in the Epiphysis of the Distal Tibia: A Case Report With Review of the Literature.

    Science.gov (United States)

    Hwang, Hyun-Jung; Jeong, Woong-Kyo; Lee, Dae-Hee; Lee, Soon-Hyuck

    2016-01-01

    Osteomyelitis originating in the epiphysis of the long bones is quite rare and is usually found at either the distal femur or the proximal tibia. We report the case of a 12-year-old male with epiphyseal osteomyelitis that had developed in the distal tibia. To the best of our knowledge, this is the first published case report. The patient's history of a trauma that resembled an ankle sprain had delayed the diagnosis and subsequently led him to develop septic arthritis. The ankle is a common site of simple trauma; however, epiphyseal osteomyelitis is rare at this site. Therefore, if the symptoms continue or worsen after trauma, the clinician should check the affected site and take a more aggressive approach to make an early diagnosis. PMID:26878809

  10. Intelligence Capital

    OpenAIRE

    Maid Pajevic

    2011-01-01

    The author of this article presents a new theoretical concept of intelligence capital, with which he explains the multi-meaningful term ‘intelligence’. The author offers a conceptual frame „intelligence capital“ as a generic complex consisting of four interactively linked elements. The contribution of this article is, among other things, an answer to a question: What is an applicative value of intelligence capital as a new theoretical concept for the sys­tem of security and intelligence of Bi...

  11. Trinidadian capitalism

    OpenAIRE

    Kevin A. Yelvington

    1999-01-01

    [First paragraph] Capitalism: An Ethnographic Approach. DANIEL MILLER. Oxford: Berg, 1997. x + 357 pp. (Cloth £39.00, Paper £17.99) Women, Labour and Politics in Trinidad and Tobago: A History. RHODA E. REDDOCK. London: Zed, 1994. vi + 346 pp. (Cloth £39.95, Paper £15.95) Despite the underdeveloped state of the scholarship on its admittedly short sugar plantation slavery period, we now have a corpus of studies on various aspects of capitalism in Trinidad - from its histor...

  12. Superselective intra-arterial DSA in patients with femoral head necrosis and femoral neck fracture

    International Nuclear Information System (INIS)

    The prospective study includes 25 patients without pathology of the femoral head for the evaluation of the normal femoral head perfusion. In addition 34 patients with femoral head necrosis underwent i.a. DSA preoperatively before pedicled pelvic bone grafting. 15 patients after pelvic bone graft operation and 7 patients with medial femoral head fracture were also examined via superselective DSA. In cases with femoral head necrosis a rarefaction or interruption of the rami nutricii proximales, or an occlusion of the medial circumflex femoral artery were observed. Patients with medial femoral neck fracture showed an interruption of the rami nutricii proximales of the femoral head. Postoperative DSA - after pedicled pelvic bone graft - revealed a regular arterial graft perfusion in 82%. (orig.)

  13. Allergy Capitals

    Science.gov (United States)

    ... McAllen, TX The report looks at 3 important factors: Pollen score Allergy medication usage Availability of Board-certified allergists This year’s report named Jackson, Mississippi, as the top Spring Allergy Capital due to its: Higher than average pollen Higher ...

  14. Capital Gains

    Science.gov (United States)

    Howard, Robert W.

    2004-01-01

    "Social capital" describes the strength of community as measured by the connections and levels of trust among its members. These connections are both formal and informal and the benefits include better health and better academic achievement. In this article, the author proposes two types of experiments to determine whether the relationship between…

  15. Capital Challenge

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    China is on its way to establishing its own venture capital industry Venture capitalists will find no safe haven worldwide as the prospects for the majority of economies to pick up remain dim for the next two years. Still, if some of them have the money and

  16. Unusual Contents of the Femoral Hernia

    OpenAIRE

    Ahmed Alzaraa

    2011-01-01

    Different contents in the femoral hernia have been reported in the literature, but herniation of the fallopian tube in a femoral hernia is very rare due to its normal anatomical position. Case Presentation. A female patient was admitted to the surgical ward for a lump in the right groin. Clinical examination confirmed a right femoral hernia. The patient underwent surgery to repair the hernia. Intraoperatively, the right uterine tube was found in the hernia. The tube was reduced back into the ...

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

    International Nuclear Information System (INIS)

    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)

  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...

  19. Pseudointercondylar notch sign: manifestation of osteochondritis dissecans of the trochlea

    Energy Technology Data Exchange (ETDEWEB)

    Pruthi, Sumit; Parnell, Shawn E.; Thapa, Mahesh M. [University of Washington, Children' s Hospital and Regional Medical Center, Department of Radiology, R-5417, Seattle, WA (United States)

    2009-02-15

    Osteochondritis dissecans (OCD) is an idiopathic condition affecting the articular epiphysis. Initially described in the knee, this entity affects several other parts of the body such as the talar dome, tarsal navicular, and femoral capital epiphysis. OCD of the elbow primarily involves the capitellum. OCD involving the trochlea has rarely been reported. We describe an unusual and interesting case of OCD affecting the trochlea, mimicking a pseudointercondylar notch. (orig.)

  20. T1-weighted MR images in radiographic stage of fragmentation of Legg-Calve-Perthes disease

    Energy Technology Data Exchange (ETDEWEB)

    Kumasaka, Yukiko; Watanabe, Hitoshi; Kishimoto, Harumasa; Higashihara, Tokuro (Kansai Rosai Hospital, Amagasaki, Hyogo (Japan)); Harada, Koshi; Kozuka, Takahiro

    1991-04-01

    Seven femoral heads of Legg-Calve-Perthes disease (LCPD) in radiographic stage of fragmentation were examined in 6 boys by MRI. Characteristic appearances of capital epiphysis and the surrounding cartilaginous structures can be seen. These were proved by four indices for measurement of cartilaginous contour. Cartilaginous contour of epiphysis is enlarged with crescent like deformity resulting from deformity of growth plate. Characteristic layers or honeycomb pattern of extremely low and intermediate signal intensity can be seen. (author).

  1. Trinidadian capitalism

    Directory of Open Access Journals (Sweden)

    Kevin A. Yelvington

    1999-07-01

    Full Text Available [First paragraph] Capitalism: An Ethnographic Approach. DANIEL MILLER. Oxford: Berg, 1997. x + 357 pp. (Cloth £39.00, Paper £17.99 Women, Labour and Politics in Trinidad and Tobago: A History. RHODA E. REDDOCK. London: Zed, 1994. vi + 346 pp. (Cloth £39.95, Paper £15.95 Despite the underdeveloped state of the scholarship on its admittedly short sugar plantation slavery period, we now have a corpus of studies on various aspects of capitalism in Trinidad - from its historical advent (Sebastien 1978 to its twentieth-century manifestation in the petroleum sector (Seers 1964; Sandoval 1983, and from the ethnic structure of labor markets (Camejo 1971; Harewood 1971 and the role of capitalism in racial/ethnic inequality (Henry 1993; Coppin & Olsen 1998 to the way ethnicity affects business, big (Button 1981; Parris 1985; Centre for Ethnic Studies 1993 and small (Ryan & Barclay 1992; Griffith 1997, and the way ethnicity and gender are used in class recruitment (Yelvington 1995. There are also a number of fine working-class histories (e.g., Rennie 1973; Ramdin 1982; Basdeo 1983 and important works on the labor riots and strikes and the nature of the colonial state during the crises of the 1930s (e.g., Thomas 1987; Singh 1994. The two books under review here complement the works mentioned above, and they complement each other as well: Reddock's deals with the way capitalism up to the mid-century was buttressed by colonial politics, and explores how this formation engendered certain kinds of political responses, while Miller approaches capitalism through the assumption that fundamental changes in the post-Oil Boom period (ca. 1973-80 brought about considerable autonomy between production and consumption that can and should now be read through an analysis of the cultural circulation of images and commodities in the society. These books are both noteworthy because they engage in explicit theorizing on what capitalism was and is, and what it did and

  2. Instrumental Capital

    Directory of Open Access Journals (Sweden)

    Gabriel Valerio

    2007-07-01

    Full Text Available During the history of human kind, since our first ancestors, tools have represented a mean to reach objectives which might otherwise seemed impossibles. In the called New Economy, where tangibles assets appear to be losing the role as the core element to produce value versus knowledge, tools have kept aside man in his dairy work. In this article, the author's objective is to describe, in a simple manner, the importance of managing the organization's group of tools or instruments (Instrumental Capital. The characteristic conditions of this New Economy, the way Knowledge Management deals with these new conditions and the sub-processes that provide support to the management of Instrumental Capital are described.

  3. Osteonecrosis of Femoral Head Occurred after Stent Placement of Femoral Artery

    Directory of Open Access Journals (Sweden)

    Akiyoshi Shimatani

    2014-01-01

    Full Text Available We present a case of osteonecrosis of femoral head (ONFH that occurred after stent angiography of femoral artery for the treatment of arteriosclerosis obliterans (ASO of left inferior limb in a 76-year-old woman. No case of late collapse of femoral head as a complication of endovascular procedure such as stent placement has been previously documented. We considered that ONFH occurred after detaining stent at a junction of left deep femoral artery for the treatment of the ischemia of left lateral and medial femoral circumflex artery.

  4. Triads of capital

    DEFF Research Database (Denmark)

    Svendsen, Gunnar Lind Haase

    of capital means a coherent stock of capital, including social, cultural and physical capital, which belongs to a local community. The case of civic organization in rural Denmark 1800-1900 shows how the three capitals successively acted as driving forces: physical capital about year 1800, social capital....... The hypothesis is that three forms of capital have the potential to act as driving forces: social capital, cultural capital and physical capital, the latter operationaliz­ed as buildings. A new concept, triad of capital, is introduced to analyze the interrelationship between these three forms of capital. A triad...... about year 1880, and cultural capital about year 1900. In each case, one form of capital changed the two others in a chain reaction process, which ultimately led to a major reorganization of the triads of capital in the local rural communities....

  5. The femoral sulcus in total knee arthroplasty.

    Science.gov (United States)

    Lingaraj, Krishna; Bartlett, John

    2009-05-01

    The position of the femoral sulcus relative to the midline of the distal femoral resection in total knee arthroplasty (TKA) was studied to determine if centralized placement of the femoral component on the distal femur was justified in terms of aligning the prosthetic sulcus with the native femoral sulcus. The location of the femoral sulcus was studied in 112 consecutive patients undergoing TKA. The mean sulcus position was 0.7 mm lateral to the midline of the distal femoral resection (SD 1.4, 95% CI, 0.5-1.0 mm). However, the variation in sulcus positions ranged from 4 mm medial to 4 mm lateral to the midline. The mean sulcus position in valgus knees was 1.0 mm lateral to the midline (SD 1.8), and that in varus knees was 0.7 mm lateral to the midline (SD 1.2) (P = 0.501). It appears prudent to centre the femoral component on the native sulcus rather than the midline of the distal femoral resection, so as to ensure accurate alignment of the prosthetic sulcus with the native sulcus and to encourage normal patella tracking.

  6. Thyroid hormone receptor-β1 signaling is critically involved in regulating secondary ossification via promoting transcription of the Ihh gene in the epiphysis.

    Science.gov (United States)

    Xing, Weirong; Aghajanian, Patrick; Goodluck, Helen; Kesavan, Chandrasekhar; Cheng, Shaohong; Pourteymoor, Sheila; Watt, Heather; Alarcon, Catrina; Mohan, Subburaman

    2016-05-15

    Thyroid hormone (TH) action is mediated through two nuclear TH receptors, THRα and THRβ. Although the role of THRα is well established in bone, less is known about the relevance of THRβ-mediated signaling in bone development. On ther basis of our recent finding that TH signaling is essential for initiation and formation of secondary ossification center, we evaluated the role of THRs in mediating TH effects on epiphysial bone formation. Two-day treatment of TH-deficient Tshr(-/-) mice with TH increased THRβ1 mRNA level 3.4-fold at day 7 but had no effect on THRα1 mRNA level at the proximal tibia epiphysis. Treatment of serum-free cultures of tibias from 3-day-old mice with T3 increased THRβ1 expression 2.1- and 13-fold, respectively, at 24 and 72 h. Ten-day treatment of Tshr(-/-) newborns (days 5-14) with THRβ1 agonist GC1 at 0.2 or 2.0 μg/day increased BV/TV at day 21 by 225 and 263%, respectively, compared with vehicle treatment. Two-day treatment with GC1 (0.2 μg/day) increased expression levels of Indian hedgehog (Ihh) 100-fold, osterix 15-fold, and osteocalcin 59-fold compared with vehicle at day 7 in the proximal tibia epiphysis. Gel mobility shift assay demonstrated that a putative TH response element in the distal promoter of mouse Ihh gene interacted with THRβ1. GC1 treatment (1 nM) increased Ihh distal promoter activity 20-fold after 48 h in chondroctyes. Our data suggest a novel role for THRβ1 in secondary ossification at the epiphysis that involves transcriptional upregulation of Ihh gene. PMID:27026086

  7. Probabilistic age classification with Bayesian networks: A study on the ossification status of the medial clavicular epiphysis.

    Science.gov (United States)

    Sironi, Emanuele; Pinchi, Vilma; Taroni, Franco

    2016-01-01

    In the past few decades, the rise of criminal, civil and asylum cases involving young people lacking valid identification documents has generated an increase in the demand of age estimation. The chronological age or the probability that an individual is older or younger than a given age threshold are generally estimated by means of some statistical methods based on observations performed on specific physical attributes. Among these statistical methods, those developed in the Bayesian framework allow users to provide coherent and transparent assignments which fulfill forensic and medico-legal purposes. The application of the Bayesian approach is facilitated by using probabilistic graphical tools, such as Bayesian networks. The aim of this work is to test the performances of the Bayesian network for age estimation recently presented in scientific literature in classifying individuals as older or younger than 18 years of age. For these exploratory analyses, a sample related to the ossification status of the medial clavicular epiphysis available in scientific literature was used. Results obtained in the classification are promising: in the criminal context, the Bayesian network achieved, on the average, a rate of correct classifications of approximatively 97%, whilst in the civil context, the rate is, on the average, close to the 88%. These results encourage the continuation of the development and the testing of the method in order to support its practical application in casework.

  8. Subchondral insufficiency fractures of the femoral head

    International Nuclear Information System (INIS)

    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.)

  9. Tension free femoral hernia repair with plug

    Institute of Scientific and Technical Information of China (English)

    Milivoje Vukovi; Neboja Moljevi; Sinia Crnogorac

    2013-01-01

    Objective: To investigate the conventional technique involves treatment of femoral hernia an approximation inguinal ligament to pectineal ligament. In technique which uses mesh closure for femoral canal without tissue tension. Method: A prospective study from January 01. 2007-May 30. 2009. We analyzed 1 042 patients with inguinal hernia, of which there were 83 patients with 86 femoral hernia. Result: Femoral hernias were present in 7.96% of cases. Males were 13 (15.66%) and 70 women (84.34%). The gender distribution of men: women is 1:5.38. Urgent underwent 69 (83%), and the 14 election (17%) patients. Average age was 63 years, the youngest patient was a 24 and the oldest 86 years. Ratio of right: left hernias was 3.4:1. With bilateral femoral hernias was 3.61% of cases. In 7 patients (8.43%) underwent femoral hernia repair with 9 Prolene plug. Conclusions: The technique of closing the femoral canal with plug a simple. The plug is made from monofilament material and is easily formed. This technique allows the reduction of recurrence and can be used safely, quickly and easily in elective and emergency situations.

  10. Lateral femoral cutaneous neuralgia: an anatomical insight.

    Science.gov (United States)

    Dias Filho, L C; Valença, M M; Guimarães Filho, F A V; Medeiros, R C; Silva, R A M; Morais, M G V; Valente, F P; França, S M L

    2003-07-01

    A detailed anatomic study was carried out on the lateral femoral cutaneous nerve to better understand the etiology and treatment of lateral femoral cutaneous neuralgia. As it passed from the pelvis into the thigh, the lateral femoral cutaneous nerve ran through an "aponeuroticofascial tunnel," beginning at the iliopubic tract and ending at the inguinal ligament; as it passed through the tunnel, an enlargement in its side-to-side diameter was observed, suggesting that the fascial structures proximal to the inguinal ligament may be implicated in the genesis of lateral femoral cutaneous neuralgia. The finding of pseudoneuromas at this location, distant from the inguinal ligament, supports this hypothesis. The anterior superior iliac spine is located approximately 0.7 cm from the lateral femoral cutaneous nerve and serves as the bony landmark for nerve localization. Within the first 3 cm of leaving the pelvis, the lateral femoral cutaneous nerve was observed deep to the fascia lata; therefore, surgical dissection within the subcutaneous fascia may be conducted with relative impunity near the anterior superior iliac spine just inferior to the inguinal ligament. In 36% of cases there was no posterior branch of the nerve, which is correlated to lateral femoral cutaneous neuralgia symptoms often being limited to the anterior branch region. An accessory nerve was found in 30% of cases. PMID:12794914

  11. Variations of femoral condyle shape.

    Science.gov (United States)

    Biscević, Mirza; Hebibović, Mujo; Smrke, Dragica

    2005-12-01

    The aim of this study is to mathematically approximate the shape of the femoral articulating line and compare radiuses of condylar curves within and between males and females. Ten male and ten female participants were included in the study. Radiuses of medial and lateral condylar curves were calculated from the side view knee X-ray by original mathematical equation. Average radiuses of condylar curves were between 4.5 and 1.7 cm medially, and between 3.2 and 1.8 cm laterally, for 0 degrees and 90 degrees flexion contact point respectively. Males had longer curve radiuses of both condyles (p knee geometry, and other ellipsoidal structures in human body, like wrist, scull segments, dental arches, etc.

  12. 78 FR 62417 - Regulatory Capital Rules: Regulatory Capital, Implementation of Basel III, Capital Adequacy...

    Science.gov (United States)

    2013-10-22

    ... Part 324 RIN 3064-AD95 Regulatory Capital Rules: Regulatory Capital, Implementation of Basel III, Capital Adequacy, Transition Provisions, Prompt Corrective Action, Standardized Approach for Risk-Weighted... Capital Rules: Regulatory Capital, Implementation of Basel III, Capital Adequacy, Transition...

  13. Embracing fixator for treating periprosthetic femoral fractures

    Institute of Scientific and Technical Information of China (English)

    张先龙; 章玮; 眭述平; 将垚; 曾炳芳

    2001-01-01

    @@Femoral fractures in the presence of other intramedullary implants are uncommon. These fractures are difficult to manage and the presence of other intramedullary implants creates a complex problem. The rate of these fractures has increased due to an increase in the number of patients having total hip arthroplasty (THA) and the use of various new techniques for femoral fractures.1-5 Literature on the treatment of femoral fractures with other intramedullary implants is rare.2,3 From 1995 to 1998, we reduced these fractures openly and fixed them with a shape memory alloy sawtooth-arm embracing fixator (EF), and the outcomes were satisfactory.

  14. Flexible Capitalism

    DEFF Research Database (Denmark)

    the perspective offers new ways to enquire about the flexible capitalism’s social dimensions. The essays contribute to a trans-disciplinary scholarship on contemporary economic practice and change by documenting how, across diverse settings, “gift-like” socialities proliferate, and even sustain the intensified......Approaching “work” as at heart a practice of exchange, this volume explores sociality in work environments marked by the kind of structural changes that have come to define contemporary “flexible” capitalism. It introduces anthropological exchange theory to a wider readership, and shows how...... flexible commoditization that more commonly is touted as tearing social relations apart. By interrogating a keenly debated contemporary work regime through an approach to sociality rooted in a rich and distinct anthropological legacy, the volume also makes a novel contribution to the anthropological...

  15. Placing social capital

    OpenAIRE

    G Mohan; J Mohan

    2002-01-01

    Metadata only record This paper looks at the relevance and contributions of social capital analysis to human geography and vise versa. The authors start by defining social capital and clarifying and distinguishing concepts, and critiques of Putnam's work. Social capital is simultaneously an economic, sociological, political, and geographical concept, but it must be distinguished from human capital, cultural capital, and networks. Social capital can be relevant to human geographers because ...

  16. Femoral anteversion measured by ultrasonography and radiography

    International Nuclear Information System (INIS)

    Radiographic and real-time ultrasound measurements of femoral anteversion were compared in an anatomic study of 20 dried adult femurs. The real anteversion (AV) angle was determined by biplanar radiography. In four ultrasound measurements, the linear transducer was kept either horizontal or tilted. The measuring lines were either the anterior tangent of the femoral head-greater trochanter or the anterior tangent of the femoral neck. With the tilted transducer, the correlation between the head-trochanter AV angle and the real AV angle was high (r=0.9452), and slightly less when the anterior neck AV angle was used (r=0.9142). The clinical relevance is that the tilted transducer technique with the head-trochanter tangent is recommended for AV screening in patients with clinical signs of increased femoral anteversion. In adults 8.50 has to be subtracted in order to obtain an approximation of the real AV angle. (orig.)

  17. Limited Quadricepsplasty for Contracture during Femoral Lengthening

    OpenAIRE

    Khakharia, Saurabh; Fragomen, Austin T.; Rozbruch, S. Robert

    2009-01-01

    Extension contracture of the knee is a common complication of femoral lengthening. Knee flexion exercises to stretch the contracture with physical therapy can be effective but take a prolonged amount of time to work and place increased stress across the patellofemoral joint. We developed a minimal-incision limited quadricepsplasty surgical technique to treat knee extension contracture secondary to femoral lengthening and retrospectively reviewed 16 patients treated with this procedure. The me...

  18. Laparoscopic repair of an incarcerated femoral hernia

    OpenAIRE

    Yagan Pillay

    2015-01-01

    Introduction: A femoral hernia is a rare, acquired condition, which has been reported in less than 5% of all abdominal wall hernias, with a female to male ratio of 4:1. Presentation of case: We report a case in a female patient who had a previous open inguinal herniorrhaphy three years previously. She presented with right sided groin pain of one month duration. Ultrasound gave a differential diagnosis of a recurrent inguinal hernia or a femoral hernia. A transabdominal preperitoneal repair...

  19. Mini-mesh repair for femoral hernia

    OpenAIRE

    Hakan Kulacoglu

    2014-01-01

    INTRODUCTION: Femoral hernia consists only 4% of all primary groin hernias. It is described as “the Bête Noire of Hernias” because of its nature and anatomy which is difficult to understand for the surgeons and tendency to recurrence. Although there is some large series of femoral hernia in the literature, few studies prospectively comparing repair techniques especially for this type of hernia has been published. A new technique named mini-mesh repair is described here. PRESENTATION OF CAS...

  20. Hygroma following endovascular femoral aneurysm exclusion

    DEFF Research Database (Denmark)

    Wad, Morten; Pedersen, Brian Lindegaard; Lönn, Lars;

    2013-01-01

    Endovascular treatment of aneurysms in the superficial femoral artery (SFA) and popliteal segments is a suggested alternative to open surgical repair. Careful selection of patients for endovascular treatment of SFA aneurysms is mandatory.......Endovascular treatment of aneurysms in the superficial femoral artery (SFA) and popliteal segments is a suggested alternative to open surgical repair. Careful selection of patients for endovascular treatment of SFA aneurysms is mandatory....

  1. Clinical experience of ioxaglate in femoral angiography

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, S.; Mine, H.; Iwai, T. (Tokyo Medical and Dental Univ. (Japan). School of Medicine)

    1982-01-01

    Painless femoral angiography could be performed in patients under slight analgesic premedication by using ioxaglate (320 mg I/ml). Slower flow of ioxaglate resulted in longer segments of the arteries being filled by the contrast column than by using iothalamate, which was confirmed by serial whole-limb angiography. The dynamic characteristics of ioxaglate, in addition to marked reduction of pain, fulfilled the requirements for its use as a contrast medium in femoral or peripheral angiography.

  2. Femoral Bone Plug in Total Knee Replacement.

    Science.gov (United States)

    Vulcano, Ettore; Regazzola, Gianmarco M V; Murena, Luigi; Ronga, Mario; Cherubino, Paolo; Surace, Michele F

    2015-10-01

    The intramedullary alignment guides used in total knee replacement disrupt the intramedullary vessels, resulting in greater postoperative blood loss. The use of an autologous bone plug to seal the intramedullary femoral canal has been shown to be effective in reducing postoperative bleeding. The authors present a simple technique to create a bone plug from the anterior chamfer femoral cut to perfectly seal the intramedullary canal of the femur. PMID:26488774

  3. Bilateral femoral neck fractures following pelvic irradiation

    International Nuclear Information System (INIS)

    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.)

  4. Early diagnosis for segmental collapse of the femoral head after femoral neck fracture by scintigraphy

    International Nuclear Information System (INIS)

    In order to obtain an early prediction for segmental collapse of the femoral head after femoral neck fracture, we have studied in 53 cases of the femoral neck fracture using 99mTC-MDP scintimetry. According to the radionuclide uptake ratio of the femoral heads, we can estimate the gravity of the avascular necrosis of the femoral head after fracture and recognize the repair process in the necrotic head. Fifty-three cases of fresh fracture were examined by sequential scintigraphy before operation and during follow up examinations after operation. The radionuclide uptake were all increased in 3 to 4 months after operation as comparing with that done before operation. The uptake ratios in 37 cases decreased gradually and approached 1 in 12 months after operation. All of them have an excellent result during follow up examination 36 months after surgery. The uptake ratios in 19 cases were also increased after operation, but still maintained at a high level in 6 to 12 months. They all showed radiographical signs of segmental collapse 18 to 24 months after operation. These results showed that uptake ratio of the radionuclide bone imaging is able to predict the occurrence of segmental collapse of the femoral head after femoral neck fracture. The time of the diagnosis by scintigraphy for segmental collapse of the femoral head is earlier than that by radiography. (authors). 5 refs., 1 tab

  5. National accounting and capital

    OpenAIRE

    John M. Hartwick

    2012-01-01

    National Accounting and Capital presents definitive solutions to current problems in national accounting practice. Professor Hartwick deals expertly with problems in accounting natural capital, financial capital and skills capital and communicates his solutions in specially designed national accounting tables or matrices.

  6. Capitalism and human flourishing?

    OpenAIRE

    Gasper, D.R.

    2009-01-01

    What interpretation of human flourishing, what ideas of value does capitalism in practice embody and promote? To address this question the paper clarifies first that "capitalism" must be understood as more than merely a system of private property and markets. It contains "the prerogative of capital", in which surplus remains with the owners of capital, and "the perspective of capital", in which hired work is defined as a cost. The question must also be distinguished from more conventional one...

  7. Is Capitalism Ethical?

    OpenAIRE

    Suciu T.

    2009-01-01

    The author of this paper have set off from the question: is the present capitalism ethical? We started with the delimitation and correlation of the concepts of ethics, morals, morality. Further on, we analysed the evolution of capitalism in connection with morals. Based on this research, we came to the conclusion that the capitalist system has undergone through three stages: moral capitalism, amoral capitalism, and immoral capitalism. We concluded by implying that the corporate capitalist soc...

  8. Capitalism and justification

    OpenAIRE

    Birešev Ana

    2009-01-01

    Weber's thesis that the spirit of capitalism was preexistent to the rise of capitalism itself inspired many sociologist to search for the cultural background of contemporary forms of capitalism. In this paper, the author focuses on and makes comparisons of three approaches of such kind. The one approach draws from Luc Boltanski and Ève Chiapello who examine the development of 'new spirit of capitalism' by focusing on the interrelation of two macroactors - capitalism and critique; the other on...

  9. Multi directional intertrochanteric osteotomy for primary and secondary osteoartritis - results after 15 to 29 years

    NARCIS (Netherlands)

    D. Haverkamp; H. Eijer; T.W. Patt; R.K. Marti

    2006-01-01

    Between 1974 and 1987, 276 intertrochanteric osteotomies were performed in 217 patients. In 48 hips the osteotomy was done for idiopathic osteoarthritis. In 166 hips the osteoarthritis was secondary to acetabular dysplasia, in 23 to trauma, in 14 to slipped capital femoral epiphysis, in five to Legg

  10. Laparoscopic repair of an incarcerated femoral hernia

    Science.gov (United States)

    Pillay, Yagan

    2015-01-01

    Introduction A femoral hernia is a rare, acquired condition, which has been reported in less than 5% of all abdominal wall hernias, with a female to male ratio of 4:1. Presentation of case We report a case in a female patient who had a previous open inguinal herniorrhaphy three years previously. She presented with right sided groin pain of one month duration. Ultrasound gave a differential diagnosis of a recurrent inguinal hernia or a femoral hernia. A transabdominal preperitoneal repair was performed and the patient made an uneventful recovery. Discussion Laparoscopic repair of a femoral hernia is still in its infancy and even though the outcomes are superior to an open repair, open surgery remains the standard of care. The decision to perform a laparoscopic trans abdominal preperitoneal (TAPP) repair was facilitated by the patient having previous open hernia surgery. The learning curve for laparoscopic femoral hernia repair is steep and requires great commitment from the surgeon. Once the learning curve has been breached this is a feasible method of surgical repair. This is demonstrated by the fact that this case report is from a rural hospital in Canada. Conclusion Laparoscopic femoral hernia repair involves more time and specialized laparoscopic skills. The advantages are a lower recurrence rate and lower incidence of inguinodynia. PMID:26581083

  11. Femoral head vitality after intracapsular hip fracture

    International Nuclear Information System (INIS)

    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)

  12. A STUDY ON THE PATTERNS OF CIRCUMFLEX FEMORAL ARTERIES

    Directory of Open Access Journals (Sweden)

    R. Chitra

    2015-09-01

    Full Text Available Context: Many different patterns have been described to classify the origins of circumflex femoral arteries by many authors since from 1860.The aim of the present study was to classify the circumflex femoral arteries in 100 lower limbs of adult cadavers of both sexes following the recent classification and to compare with the previous studies. Materials and Methods: A total of 100 lower limbs of 50 embalmed human adult cadavers (Male: 37, Female: 13 were dissected and observed for the origins of circumflex femoral arteries in femoral triangle in routine educational dissection in the period of 2005-2009 Results: The medial and lateral circumflex femoral arteries have been classified into three different patterns based on the levels of their origin. Pattern I: Both arteries arose from the profunda femoris artery (56%. Type Ia, medial circumflex femoral artery origin was proximal to the lateral circumflex femoral artery origin (69%; Type Ib, lateral circumflex femoral artery origin was proximal to medial circumflex femoral artery origin (16 %; Type Ic, both arteries arose from a common trunk or at same level (14%. Pattern II: One of the arteries arose from the femoral artery and the other from the profunda femoris artery (36%. Type IIa, the medial circumflex femoral artery arose from the femoral artery (75% and Type IIb, the lateral circumflex femoral artery arose from the femoral artery (25%.Pattern III: Both arteries arose from the femoral artery (7%. The medial circumflex femoral artery was absent in a female cadaver on right side. Conclusion: In every pattern or type, there was significantly unilateral higher occurrence than bilateral occurrence. A precise knowledge of the circumflex femoral arteries in relation to the profunda femoris artery is important in surgical interventions of the hip region

  13. 99mTc-MDP scintigraphy of femoral head necrosis following femoral neck fracture

    International Nuclear Information System (INIS)

    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

  14. Human Capital a Part of Social Capital

    OpenAIRE

    Inna Fedoryshina

    2014-01-01

    The article considers the content and the structure of human capital. The term “human capital” is viewed as people’s abilities toparticipate in the production process in order to make use of their potential skills. A particular attention is paid to the meaning ofsocial capital and its role in the formation of human capital. It is proven that there is not much research on the connection betweenhuman and social capital. Human development index in Ukraine and 20 leading counties of the global ra...

  15. Capital disadvantage: America's failing capital investment system.

    Science.gov (United States)

    Porter, M E

    1992-01-01

    The U.S. system of allocating investment capital is failing, putting American companies at a serious disadvantage and threatening the long-term growth of the nation's economy. The problem, says Michael Porter, goes beyond the usual formulation of the issue: accusations of "short-termism" by U.S. managers, ineffective corporate governance by directors, or a high cost of capital. The problem involves the external capital allocation system by which capital is provided to companies, as well as the system by which companies allocate capital internally. America's system is marked by fluid capital and a financial focus. Other countries--notably Japan and Germany--have systems with dedicated capital and a focus on corporate position. In global competition, where investment increasingly determines a company's capacity to upgrade and innovate, the U.S. system does not measure up. These conclusions come out of a two-year research project sponsored by the Harvard Business School and the Council on Competitiveness. Porter recommends five far-reaching reforms to make the U.S. system superior to Japan's and Germany's: 1. Improve the present macroeconomic environment. 2. Expand true ownership throughout the system so that directors, managers, employees, and even customers and suppliers hold positions as owners. 3. Align the goals of capital providers, corporations, directors, managers, employees, customers, suppliers, and society. 4. Improve the information used in decision making. 5. Foster more productive modes of interaction and influence among capital providers, corporations, and business units. PMID:10121317

  16. Emergency intravenous access through the femoral vein.

    Science.gov (United States)

    Swanson, R S; Uhlig, P N; Gross, P L; McCabe, C J

    1984-04-01

    A study was undertaken to assess the efficacy and safety of femoral venous catheterization for resuscitation of critically ill patients in the emergency department setting. From May 1982 to April 1983, 100 attempts were made at percutaneous insertion of a large-bore catheter into the femoral veins of patients presenting to our emergency department in cardiac arrest or requiring rapid fluid resuscitation. Eighty-nine attempts were successful. Insertion was generally considered easy, and flow rates were excellent. The only noted complications were four arterial punctures and one minor groin hematoma. This study suggests that short-term percutaneous catheterization of the femoral vein provides rapid, safe, and effective intravenous access. PMID:6703430

  17. Participation of osteoporosis in femoral neck fracture

    International Nuclear Information System (INIS)

    Quantitative computed tomography (QCT) was used to measure bone mineral contents of the proximal femur. First, 62 specimens of cancellous bones of the proximal femur obtained at operation were burnt for mineral determination after preoperative QCT measurement to evaluate the relationship between QCT values and ash weight. The findings indicated that QCT measurement of proximal femur was as useful as that of the lumbar spine. Next, 10 groups of 50 men and 50 women ranging in age from the 5th to the 9th decade were tested to define the control mean and range of QCT mineral content of proximal femur, to compare with 32 cases of femoral neck fracture. In women with femoral neck fracture, QCT values of the femoral neck were less than those of the same normal age group except for cases of medial fracture in the 9th decade. This measurement might provide an index for fracture risk. (author)

  18. Optimizing Stability in Femoral Neck Fracture Fixation.

    Science.gov (United States)

    Ye, Ye; Hao, Jiandong; Mauffrey, Cyril; Hammerberg, E Mark; Stahel, Philip F; Hak, David J

    2015-10-01

    Optimizing stability of femoral neck fracture fixation is important in obtaining a successful outcome. The mechanical problems and strategies for achieving optimal stability differ depending on patients' age and degree of osteoporosis. Femoral neck fractures in younger adults usually result from high-energy trauma and have a vertical fracture pattern. Strategies for optimizing fixation stability in this group include placing additional screws at right angles to the fracture plane and medial buttress plate augmentation. In elderly patients, screw position relative to the intact cortical femoral neck bone is of critical importance. Additional strategies for optimizing fixation stability in this group include the concept of length stable fixation, use of adjunctive calcium phosphate cement, and use of novel fixed angle fixation implants. PMID:26488776

  19. Micromotion of cemented and uncemented femoral components.

    Science.gov (United States)

    Burke, D W; O'Connor, D O; Zalenski, E B; Jasty, M; Harris, W H

    1991-01-01

    We evaluated the initial stability of cemented and uncemented femoral components within the femoral canals of cadaver femurs during simulated single limb stance and stair climbing. Both types were very stable in simulated single limb stance (maximum micromotion of 42 microns for cemented and 30 microns for uncemented components). However, in simulated stair climbing, the cemented components were much more stable than the uncemented components (76 microns as against 280 microns). There was also greater variation in the stability of uncemented components in simulated stair climbing, with two of the seven components moving 200 microns or more. Future implant designs should aim to improve the initial stability of cementless femoral components under torsional loads; this should improve the chances of bony ingrowth. PMID:1991771

  20. Osteochondritis dissecans in bilateral lateral femoral condyle in knees

    Directory of Open Access Journals (Sweden)

    Ari Zekcer

    2013-12-01

    Full Text Available The osteochondritis dissecans (OCD is a disease of unknown cause that classically affects the knee lateral border of the medial femoral condyle. We present a rare case of OCD in bilateral lateral femoral condyle.

  1. Femoral lipectomy increases postprandial lipemia in women.

    Science.gov (United States)

    Hernandez, Teri L; Bessesen, Daniel H; Cox-York, Kimberly A; Erickson, Christopher B; Law, Christopher K; Anderson, Molly K; Wang, Hong; Jackman, Matthew R; Van Pelt, Rachael E

    2015-07-01

    Femoral subcutaneous adipose tissue (SAT) appears to be cardioprotective compared with abdominal SAT, possibly through better triglyceride (TG) sequestration. We hypothesized that removal of femoral SAT would increase postprandial TG through a reduction in dietary fatty acid (FA) storage. Normal-weight (means ± SD; BMI 23.9 ± 2.6 kg/m(2)) women (n = 29; age 45 ± 6 yr) were randomized to femoral lipectomy (LIPO) or control (CON) and followed for 1 yr. Regional adiposity was measured by DEXA and CT. A liquid meal labeled with [(14)C]oleic acid was used to trace the appearance of dietary FA in plasma (6-h postprandial TG), breath (24-h oxidation), and SAT (24-h [(14)C]TG storage). Fasting LPL activity was measured in abdominal and femoral SAT. DEXA leg fat mass was reduced after LIPO vs. CON (Δ-1.4 ± 0.7 vs. 0.1 ± 0.5 kg, P fat area (-39.6 ± 36.6 vs. 4.7 ± 14.6 cm(2), P fat mass and CT visceral fat area were unchanged. Postprandial TG increased (5.9 ± 7.7 vs. -0.6 ± 5.3 × 10(3) mg/dl, P fat remained reduced 1 yr following lipectomy and was accompanied by increased postprandial TG and reduced femoral SAT LPL activity. There were no changes in storage of meal-derived FA or visceral fat. Our data support a protective role for femoral adiposity on circulating TG independent of dietary FA storage and visceral adiposity. PMID:25968576

  2. A correlation between femoral neck shaft angle to femoral neck length

    OpenAIRE

    gujar, subhash moolchand; Vikani, Sanjay; Parmar, Jigna; Bondre, K V

    2013-01-01

    Knowledge of the anatomy of proximal end of femur is a prerequisite for a complete understanding of the mechanics of the hip joint and serves as a basis for the treatment of pathological condition of the hip and femur. A total of 250 adult femora were used to  measure femoral neck shaft angle, femoral neck length & femoral total length at S.B.K.S Medical institute, Vadodara. The neck shaft angle range from 116o to 150o with means of 136.3o & no significant side difference. The neck le...

  3. Femoral component loosening after hip resurfacing arthroplasty

    Energy Technology Data Exchange (ETDEWEB)

    Zustin, Jozef; Sauter, Guido [University Medical Centre Hamburg-Eppendorf, Institute of Pathology, Hamburg (Germany); Hahn, Michael [University Medical Centre Hamburg-Eppendorf, Center for Biomechanics and Skeletal Biology, Hamburg (Germany); Morlock, Michael M. [TUHH Hamburg University of Technology, Biomechanics Section, Hamburg (Germany); Ruether, Wolfgang [University Medical Centre Hamburg-Eppendorf, Department of Orthopaedics, Hamburg (Germany); Amling, Michael [University Medical Centre Hamburg-Eppendorf, Center for Biomechanics and Skeletal Biology, Hamburg (Germany); University Medical Centre Hamburg-Eppendorf, Department of Trauma, Hand and Reconstructive Surgery, Hamburg (Germany)

    2010-08-15

    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

  4. External fixation of complex femoral shaft fractures

    OpenAIRE

    Zlowodzki, M; Prakash, J. S.; Aggarwal, N. K.

    2006-01-01

    Conversion of temporary external fixation to an intramedullary nail within the first 2 weeks after a femoral shaft fracture is standard practice. However, due to financial constraints, in large parts of the world external fixation of femoral shaft fractures is often the definitive treatment. Out of 60 fractures, 47 were followed-up for a minimum period of 39 weeks. The average follow-up time was 75 weeks. Fourteen fractures were closed, and 33 open. Forty-four fractures united at an average o...

  5. Occult, massive hematomas following antegrade femoral angioplasty

    International Nuclear Information System (INIS)

    Small groin hematomas are not uncommon after percuatenous antegrade femoral angioplasty (PAFA) and are usually apparent clinically. The authors describe three patients of 235 who underwent PAFA, in whom occult, massive hemorrhage was detected after the procedure. All patients underwent fluoroscopically guided antegrade punctures, with adequate hemostasis achieved after the procedure. CT revealed extraperitoneal hematomas in two patients. One patient required surgical intervention with ligation of the inferior epigastric artery. The authors postulate that these hematomas arose due to inadvertent injury to a branch of the common femoral artery during the puncture. The radiologist should be aware of the chance occurrence of this occult, potentially life-threatening complication

  6. Clinical observation of epiphysis preservation in children with distal femur osteosarcoma%保留股骨骨肉瘤儿童骨骺的临床研究

    Institute of Scientific and Technical Information of China (English)

    高嵩涛; 蔡启卿; 姚伟涛; 王家强; 张鹏; 王鑫

    2012-01-01

    目的 探讨通过骨骺牵开术保留骨肉瘤患儿患侧股骨远端骨骺及膝关节功能的可行性.方法 对7例股骨下段骨肉瘤患儿行外固定架牵引以分离股骨远端骨骺,配合瘤骨切除、大段同种异体骨置换术.术后对肿瘤控制、并发症、关节功能、肢体长度等指标进行分析.结果 随访12~58个月,所有患儿无局部复发.按照国际保肢学会(ISOLS)评估标准,优良率为71.4%.末次复查患儿健、患侧肢体长度分别为(65.7±2.3)cm、(64.9±2.0)cm,两者比较差异无统计学意义(P>0.05).结论 骨骺牵开术可较好地保留骨肉瘤患儿的患肢生长机能及肢体功能.%Objective To explore the feasibility of epiphysis and joint function preservation in children with distal femur osteosarcoma using epiphysis distraction by external fixator.Methods Total 7 cases of children with distal femur osteosarcoma underwent epiphysis distraction using external fixator combined with tumor resection and repair of defect with massive allograft bone transplantation,aiming to preserve the epiphysis of the distal femur and knee joint function.The tumor control probability (TCP),complications,joint function and limb length after operation were targeted to analysis.Results The follow-up study (Ranging from 12 to 58 months) was conducted in all case.No recurrence was found in them and 1 case died due to lung metastasis in 2nd year after surgery.Referring to the functional evaluation criteria from ISOLS,excellent were seen in 3 cases,good in 2 cases,fair in 2 cases and poor was not found in them.71.4 percent of cases achieved satisfactory curative efficacy.The final examination in follow up study showed that affect limbs length were (64.9 ± 2.0) cm and normal limbs length were (65.7 ± 2.3) cm respectively.No statistical significance was found between the affected limbs and normal limbs.Conclusions The epiphysis distraction using external fixator is a better way to preserve limb length

  7. Early roentgenological grading of femoral shortening is correlated to the late outcome after femoral neck fractures

    International Nuclear Information System (INIS)

    Using orthoradiography, the distance between the centre of the femoral head and the intercondylar notch was assessed at regular intervals in 144 patients who were followed for a 2-year period after osteosynthesis of a femoral neck fracture. Late complications, such as segmental collapse and non-union, occurred in 27% of the patients. The degree of femoral shortening was significantly correlated to the incidence of late complications. At 1 month, femoral shortening of more than 5 mm was observed in 85% of patients who developed late complications, and in only 5% of patients without such complications. Thus, the observation of a shortening of more than 5 mm predicted a greater than 6-fold increase of the incidence of late complications. The prognostic accuracy of this observation 1 month after treatment was 92%. (orig.)

  8. Measuring Irish capital

    OpenAIRE

    Keeney, Mary J.

    2007-01-01

    Irish National Income and Expenditure Accounts do not contain information on capital stocks or capital services estimation. Estimates of the national capital stock and the depreciation of its fixed assets are basic macroeconomic aggregates and are integral components for many modelling exercises. This paper will present a detailed asset-level analysis of the stocks and depreciation of Irish fixed assets and the capital formation flows used to derive them. It will apply an improved perpetual i...

  9. Welfare Enhancing Capital Imports

    OpenAIRE

    Masao Oda; Koji Shimomura; Ryuhei Wakasugi

    2007-01-01

    This paper provides a model to consider the conditions under which an acceptance of foreign capital is welfare enhancing in a multi-commodity multi-factor framework. Contrary to the pessimistic conventional wisdom of capital imports and welfare, we provide a justification for the acceptance of foreign capital and the diversification of industrial structure in developing countries. A sufficient condition for the acceptance of foreign capital to be welfare enhancing is that all domestic factors...

  10. Femoral neck version affects medial femorotibial loading.

    Science.gov (United States)

    Papaioannou, T A; Digas, Georgios; Bikos, Ch; Karamoulas, V; Magnissalis, E A

    2013-01-01

    The aim of this study was to provide a preliminary evaluation of the possible effect that femoral version may have on the bearing equilibrium conditions developed on the medial tibiofemoral compartment. A digital 3D solid model of the left physiological adult femur was used to create morphological variations of different neck-shaft angles (varus 115, normal 125, and valgus 135 degrees) and version angles (-10, 0, and +10 degrees). By means of finite element modeling and analysis techniques (FEM-FEA), a virtual experiment was executed with the femoral models aligned in a neutral upright position, distally supported on a fully congruent tibial tray and proximally loaded with a vertical only hip joint load of 2800 N. Equivalent stresses and their distribution on the medial compartment were computed and comparatively evaluated. Within our context, the neck-shaft angle proved to be of rather indifferent influence. Reduction of femoral version, however, appeared as the most influencing parameter regarding the tendency of the medial compartment to establish its bearing equilibrium towards posteromedial directions, as a consequence of the corresponding anteroposterior changes of the hip centre over the horizontal tibiofemoral plane. We found a correlation between femoral anteversion and medial tibiofemoral compartment contact pressure. Our findings will be further elucidated by more sophisticated FEM-FEA and by clinical studies that are currently planned. PMID:24959355

  11. Femoral fractures in the extremely elderly

    Science.gov (United States)

    Guido, Giulio; Giannotti, Stefano; Bottai, Vanna; Ghilardi, Marco; Bianchi, Maria Giulia; Ceglia, Michael James

    2011-01-01

    Summary At the Trauma Unit of Pisa we performed an observational study reviewing nineties that about 200 patients were treated and underwent surgery for femoral neck fracture from 1998 to 2005. The clinical and radiographic results obtained were discrete, with a mortality of 42.5%, the survivors are still having a good quality of life. PMID:22461814

  12. Sequential changes in the femoral head after intracapsular fracture of the femoral neck. MRI findings

    International Nuclear Information System (INIS)

    Authors obtained T1-weighted MRI images of the femoral head after fracture of the femoral neck and classified the signals into four patterns to investigate the sequential changes of the femoral head. The T1-weighted MRI images obtained initially after femoral neck fracture showed a normal pattern in 10 of the 15 hip joints studied. MRI images obtained subsequently still showed the normal signal pattern in eight of the 10 hip joints which had shown the normal pattern in the first MRI, while two of the 10 joints subsequently showed a band pattern. The joint with the homogeneous pattern in the first MRI subsequently showed a band pattern. Of the three joints with an inhomogeneous pattern in the first MRI, two joints showed a subsequent band pattern, and the other a normal pattern. The joints which showed a band pattern continued to show a similar band pattern. Eventually, all hip joints studied showed a normal or band pattern within six months after intracapsular fracture of the femoral neck. The joints which showed a band pattern in the first MRI continued to show a similar band pattern in the subsequent MRI, without any change. Collapse occurred in one hip joint which showed an extensive band pattern. Plain X-rays showed collapse of one of the joints with a band pattern in the MRI image. It was therefore suggested that necrosis may be present histologically in the femoral head after fracture of the femoral neck even when no abnormalities are present in plain X-rays. Based on the above results, it is considered necessary to follow-up patients with femoral neck fracture with MRI for at least six months until the normal or band pattern is observed. (K.H.)

  13. Early prediction of avascular necrosis of the femoral head following femoral neck fractures

    International Nuclear Information System (INIS)

    The treatment of acute fracture of the femoral neck remains an unsolved problem. Fifty-three patients are presented using 99mTc phosphate scintigraphy with quantitative computer interpretation to predict the viability of the femoral head following acute fracture. The accuracy of prediction was 92.5%; the scans were incorrect in four patients. Armed with a safe, simple diagnostic procedure and a greater than 90% accurate prognosis, a rational program of treatment can be prescribed for the individual patient

  14. Rotational Position of Femoral and Tibial Components in TKA Using the Femoral Transepicondylar Axis

    OpenAIRE

    Aglietti, Paolo; Sensi, Lorenzo; Cuomo, Pierluigi; Ciardullo, Antonio

    2008-01-01

    Proper femoral and tibial component rotational positioning in TKA is critical for outcomes. Several rotational landmarks are frequently used with different advantages and limitations. We wondered whether coronal axes in the tibia and femur based on the transepicondylar axis in the femur would correlate with anteroposterior deformity. We obtained computed tomography scans of 100 patients with arthritis before they underwent TKA. We measured the posterior condylar angle on the femoral side and ...

  15. Four Books on Capitalism

    OpenAIRE

    Streeck, W.

    2009-01-01

    Christoph Deutschmann Kapitalistische Dynamik: Eine gesellschaftstheoretische Perspektive. Wiesbaden, VS Verlag, 2008 Geoffrey Ingham Capitalism. Oxford, Polity, 2008 John McMurtry The Cancer Stage of Capitalism. London, Pluto, 1999 Frederic L. Pryor The Future of U.S. Capitalism. New York, Cambridge University Press, 2002

  16. Femoral neck fracture following groin irradiation

    International Nuclear Information System (INIS)

    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

  17. Contribution to the method for determining femoral neck axis

    Directory of Open Access Journals (Sweden)

    Anđelković Zoran

    2014-01-01

    Full Text Available Introduction. Femoral neck axis plotting is of great significance in measuring parameters that define femoral head-neck junction sphericity in the group of patients with the femoroacetabular impingement. Literature methods of femoral neck axis determination have weaknesses associated with the risk of obtaining inaccurate values of certain parameters. Objective. Method of plotting of the femoral neck axis by two parallel lines that belong to the medial quarter of the femoral neck is proposed. Method was tested on the anatomic specimens and the respective radiograms. Methods. A total of 31 anatomic specimens of the proximal femur and respective radiographs were used, on which three axes of the femoral neck were plotted; accordingly, alpha angle value was determined and tested with corresponding parametric tests, with the measurement error of less than 5% and the strength of the applied tests of 80%. Results. Alpha angle values obtained by plotting femoral neck axis using the literature and methods we have proposed were not significantly different in our series, and, in more than a half of the specimens, the two axes overlapped each other. Conclusion. The advantage of the proposed method does not depend on the position of the femoral head rotation center in relation to the femoral neck, which favors proposed method for measuring the angles of femoral head sphericity in patients with the femoral head translation. Disadvantage of the study is a small sample size for valid conclusions about the applicability of this method in clinical practice.

  18. Is Capitalism Ethical?

    Directory of Open Access Journals (Sweden)

    Suciu T.

    2009-12-01

    Full Text Available The author of this paper have set off from the question: is the present capitalism ethical? We started with the delimitation and correlation of the concepts of ethics, morals, morality. Further on, we analysed the evolution of capitalism in connection with morals. Based on this research, we came to the conclusion that the capitalist system has undergone through three stages: moral capitalism, amoral capitalism, and immoral capitalism. We concluded by implying that the corporate capitalist society is immoral, that it cannot regulate itself and that the government’s assistance is needed to inoculate the ethics.

  19. INTERPRETING OVERALL INEQUALITY IN CHINA: THE ROLES OF PHYSICAL CAPITAL, HUMAN CAPITAL AND SOCIAL CAPITAL

    OpenAIRE

    Yuheng LI; Westlund, Hans

    2013-01-01

    This paper investigates the relationship between overall inequality in China and the contributions of physical capital, human capital and social capital. The investment in physical capital tends to enlarge overall inequality while human capital helps to reduce the inequality. Human capital appears to be more influential than physical capital in overall inequality reduction in the research period. Social capital (people's social networks) however, does not seem to exert any impact on overall i...

  20. The Association of Femoral Neck Stress Fractures with Femoral Acetabular Impingement

    Science.gov (United States)

    Safran, Marc R.; Goldin, Michael; Anderson, Christian; Fredericson, Michael; Stevens, Kathryn J.

    2013-01-01

    Objectives: To determine if there is an increased incidence of femoral acetabular impingement (FAI) in patients presenting with stress fractures of the femoral neck. Methods: After IRB approval, the imaging studies of 25 athletes (22 females, 3 males, mean age 26, range 19 - 39 years) with femoral neck stress injuries were assessed for the presence of features suggesting FAI, including acetabular retroversion, coxa profunda, abnormal femoral head-neck junction, fibrocystic change, os acetabulae, labral tear and chondral injury. All subjects had to have an adequate AP Pelvis radiograph, a lateral radiograph of the affected hip, and an MRI of the affected hip. The alpha angle, anterior offset ratio, and center to edge (CE) angle were measured on radiographs. The grade of stress injury was determined on MR images. All images and measurements were made by a musculoskeletal fellowship trained radiologist, a fellowship trained orthopaedic surgeon, an orthopaedic sports medicine fellow and a physical medicine and rehabilitation resident. Charts were reviewed to determine treatment of the stress fracture, outcome and final follow up, as well as to determine if the patient had any further treatment for their hip. Results: Of the 25 hips (18 right, 7 left) with femoral neck stress reactions, 9 were grade 2 (bone marrow edema), 5 were grade 3 (high T2 and low T1 marrow signal), and 11 were grade 4 (stress fracture). Twenty patients (80%) had coxa profunda - where the floor of the cotyloid fossa touches or extends beyond the ilioischial line (incidence in general population is 15.2% of males, and 19.4% of females). Coxa profunda, defined by the floor of the cotyloid fossa touching or extending beyond the ilioischial line and a center edge angle of more than 35o, was present in 28% of subjects. Acetabular retroversion as assessed by the crossover sign was present in 42% (normal incidence is 5% of population). Center edge angle was greater than 35o in 20% and greater than 40 o

  1. Human Capital, Bankruptcy and Capital Structure

    OpenAIRE

    Jonathan B. Berk; Richard Stanton; Josef Zechner

    2007-01-01

    We derive a firm's optimal capital structure and managerial compensation contract when employees are averse to bearing their own human capital risk, while equity holders can diversify this risk away. In the presence of corporate taxes, our model delivers optimal debt levels consistent with those observed in practice. It also makes a number of predictions for the cross-sectional distribution of firm leverage. Consistent with existing empirical evidence, it implies persistent idiosyncratic diff...

  2. Miniaturized metacarpus steel plate for treatment of epiphysis injury%微型指掌骨钢板治疗小儿骨骺损伤

    Institute of Scientific and Technical Information of China (English)

    刘保健; 董万涛

    2011-01-01

    Objective :To observe the clinical effects of miniaturized metacarpus steel plate for the treatment of child epiphysis injury,and to analyse its clinical advantages in the child epiphysis injury.Methods: From June 2004 to May 2009,85 children with epiphysis injury treated with miniaturized metacarpus steel plate included 52 boys and 33 girls with an average age of 6.6 years old ranging from 1 to 14 years.All the children suffered from just one part injury.There were 68 cases of upper limb injury, 19 of which were humerus epicondyle injury, 16 humerus head injury, 12 olecranon injury, 14 distal radius injury and 7 head of radius injury.The other 17 cases were lower limb injury, 12 of which were femur epicondyle injury and 5 tibia epicondyle injury.Results: All children obtained good intention ,and no postoperative complications occurrenced.Eighty-one children were followed up for 6 months to 5 years (averaged 2.6 years).The results were evaluated at 4 weeks after the operation and showed that there were excellent in 44 cases,good in 21 cases,fair in 11 cases and poor in 9 cases.Conclusion:Treatment of child epiphysis injury with miniaturized metacarpus steel plate can achieve perfect anatomical reduction in the early stage, protect the biological enviroment of the recovery.This treatment makes the postoperative joint functions and movements recovery nice, barely cause any bone malformation, and worth further clinical applications.%目的:通过采用微型指掌骨钢板治疗小儿骨0 4f! 45的临床疗效观察,分析其在治疗小儿骨形损伤中的优势.方法:2004年6月至2009年5月,采用微型指掌骨钢板治疗小儿骨96损伤85例,男52例,女33例;年龄1-14岁,平均6.6岁.患儿全部为单部位损伤,上肢68例,其中肚骨裸19例,脓骨头16例,尺骨鹰嘴12例,挠骨远端14例,挽骨小头7例;下肢17例,其中股骨裸12例,胫骨裸5例.结果:术后所有患儿伤口愈合良好,无并发症.85例患儿获随访81例,随访6

  3. THE EFFECT OF HUMAN CAPITAL ON SOCIAL CAPITAL AMONG ENTREPRENEURS

    OpenAIRE

    HANNES OTTÓSSON; KIM KLYVER

    2010-01-01

    Using data collected from 714 entrepreneurs in a random sample of 10,000 Danes, this study provides an investigation of the effect of human capital on social capital among entrepreneurs. Previous entrepreneurship research has extensively investigated the separated effect of human capital and social capital on different entrepreneurial outputs. The study takes a step back and investigates how these two capital concepts are related — specifically how human capital influences social capital. In ...

  4. Capital Utilization and Capital Accumulation: Theory and Evidence

    OpenAIRE

    Shapiro, Matthew D.

    1986-01-01

    A firm may acquire additional capital input by purchasing new capital or by increasing the utilization of its current capital. The margin between capita accumulation and capital utilization is studied in a model of dynamic factor demand where the firm chooses capital, labor, and their rates of utilization. A direct measure of capital utilization -- the work week of capital -- is incorporated into the theory and estimates. The methodology advocated by Hansen and Singleton (1982) is used to obt...

  5. Femoral head fracture without hip dislocation

    Institute of Scientific and Technical Information of China (English)

    Aditya K Aggarwal; Ashwani Soni; Daljeet Singh

    2013-01-01

    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 energy 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.

  6. Spontaneous stress fractures of the femoral neck

    International Nuclear Information System (INIS)

    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

  7. Spontaneous enterocutaneous fistula due to femoral hernia

    OpenAIRE

    Kumar, Awanish; Pahwa, Harvinder Singh; Pandey, Anand; Kumar, Suresh

    2012-01-01

    Spontaneous enterocutaneous fistula is a rare entity. We encountered a case of spontaneous enterocutaneous fistula in the groin region due to femoral hernia. A 60-year-old man presented with spontaneous enterocutaneous fistula in the left groin region without signs of peritonitis. He was kept on conservative treatment, but on third postadmission day, he developed a swelling in his right groin, which became firm and irreducible with signs of intestinal obstruction. On exploratory laparotomy, b...

  8. Fracture of femoral total hip replacement components

    International Nuclear Information System (INIS)

    The biomechanical factors responsible for fatigue fracture of femoral total hip component stems were studied by laboratory loading simulations using implants which were instrumented with strain gauges. Stress levels were low when the prosthesis was rigidly fixed in acrylic along its entire length. Significantly higher stresses were recorded in stems which were loose in the acrylic or which were fixed in their distal portion only

  9. Femoral midshaft fractures: expandable versus locked nailing.

    Science.gov (United States)

    Zhou, Zhen-Tao; Song, Yu-Chen; Zhou, Xiao-Zhong; Zhou, Hai-Bin; Luo, Zong-Ping; Dong, Qi-Rong

    2015-04-01

    Femoral midshaft fracture is one of the most common clinical injuries and is often caused by high-energy traffic accidents. Intramedullary nailings, plates, and external fixators are all used as treatment alternatives for a variety of patients depending on fracture location, displacement, comminution, soft tissue condition, and local tradition. Locked intramedullary nailing is currently the preferred treatment method for most diaphyseal fractures and has good clinical results. The goal of this study was to compare expandable and locked intramedullary nailing for the treatment of AO type 32A and 32B1 femoral midshaft fractures. The authors performed a retrospective analysis of 46 patients (33 men and 13 women; mean age, 32.3 years; range, 22-52 years) with femoral midshaft fractures who were divided into 2 groups-one treated with an expandable intramedullary nailing method and the other with a conventional locked intramedullary nailing. The 2 groups were compared with respect to operation time, fluoroscopic time, amount of estimated blood loss, hospitalization time, healing time, and complications. Patients were followed for at least 1 year. The results of this study showed that all of the patients achieved bone union within 12 to 24 months. Expandable nailing performed better than locked nailing in operation time, fluoroscopic time, amount of estimated blood loss, and healing time (P<.001). There was no difference in hospitalization time and no visible shortening or severe complications were observed in either group. Based on the results of this study, the expandable intramedullary nailing is an easy and effective treatment for AO type 32A and 32B1 diaphyseal femoral fractures. PMID:25901625

  10. Femoral Neck Version Affects Medial Femorotibial Loading

    OpenAIRE

    T. A. Papaioannou; Georgios Digas; Ch. Bikos; Karamoulas, V.; E. A. Magnissalis

    2013-01-01

    The aim of this study was to provide a preliminary evaluation of the possible effect that femoral version may have on the bearing equilibrium conditions developed on the medial tibiofemoral compartment. A digital 3D solid model of the left physiological adult femur was used to create morphological variations of different neck-shaft angles (varus 115, normal 125, and valgus 135 degrees) and version angles (−10, 0, and +10 degrees). By means of finite element modeling and analysis techniques (F...

  11. Painful Spastic Hip Dislocation: Proximal Femoral Resection

    OpenAIRE

    Albiñana, Javier; Gonzalez-Moran, Gaspar

    2002-01-01

    The dislocated hip in a non-ambulatory child with spastic paresis tends to be a painful interference to sleep, sitting upright, and perineal care. Proximal femoral resection-interposition arthroplasty is one method of treatment for this condition. We reviewed eight hips, two bilateral cases, with a mean follow-up of 30 months. Clinical improvement was observed in all except one case, with respect to pain relief and sitting tolerance. Some proximal migration was observed in three cases, despit...

  12. 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.

  13. Human Capital and Retirement

    OpenAIRE

    Alders, P.

    1999-01-01

    textabstractThis paper investigates the relation between human capital and retirement when the age of retirement is endogenous. This relation is examined in a life-cycle earnings model. An employee works full time until retirement. The worker accumulates human capital by training- on-the-job and by learning-by-doing. The human capital of an employee is subject to depreciation when knowledge of technologies becomes obsolete. After a shock in technology, the worker depreciates on his human capi...

  14. Capital mobility. An overview

    OpenAIRE

    Arndt, H. W.

    2000-01-01

    The article analyses the problem of international capital mobility which the Asian crisis has highlighted. It points out that the problem of capital mobility ("hot money" panics) has a long history, but globalization, the opening up of national economies and technological advance have increased the risks. The article discusses four policy debated which are being pursued in the large Asian crisis literature: (i) the pros and cons of capital controls; (ii) the choice of exchange rate regime; (i...

  15. Human capital and productivity

    OpenAIRE

    Fuente, Ángel de la

    2011-01-01

    This paper surveys the empirical literature on human capital and productivity and summarizes the results of my own work on the subject. On balance, the available evidence suggests that investment in education has a positive, significant and sizable effect on productivity growth. According to my estimates, moreover, the social returns to investment in human capital are higher than those on physical capital in most EU countries and in many regions of Spain.

  16. ACCOUNT INSTRUMENT CAPITAL BORROWED

    Directory of Open Access Journals (Sweden)

    Holt Gheorghe

    2012-03-01

    Full Text Available Setting up business capital is made from different sources and their use coordinates its policy aims, issues that affect the overall efficiency and thus differentiate companies with the same profile of activity and a similar level of capital advanced in the economic cycle. Thus financial structure, the average cost of capital used in the mechanism how the financial management of the company, of particular importance for this.

  17. KVA: Capital Valuation Adjustment

    OpenAIRE

    Andrew Green; Chris Kenyon

    2014-01-01

    Credit (CVA), Debit (DVA) and Funding Valuation Adjustments (FVA) are now familiar valuation adjustments made to the value of a portfolio of derivatives to account for credit risks and funding costs. However, recent changes in the regulatory regime and the increases in regulatory capital requirements has led many banks to include the cost of capital in derivative pricing. This paper formalises the addition of cost of capital by extending the Burgard-Kjaer (2013) semi-replication approach to C...

  18. Fukuyama on social capital

    Directory of Open Access Journals (Sweden)

    Ignjatović Suzana

    2008-01-01

    Full Text Available The paper aims to provide a synthesis of Fukuyama's theory of social capital Three different conceptual issues are discussed in the article: definition paradigmatic framework, and methodology. Another aspect of Fukuyama's concept of social capital is discussed from the perspective of Fukuyama's great popularity in public policy since the nineties. The concluding part of the paper deals with Fukuyama's place in academic and policy discourse on social capital.

  19. Handbook of Social Capital

    DEFF Research Database (Denmark)

    The Handbook of Social Capital balances the ‘troika' of sociology, political science and economics by offering important contributions to the study of bonding and bridging social capital networks. This inter-disciplinary Handbook intends to serve as a bridge for students and scholars within all...... the social sciences. The contributors explore the different scientific approaches that are all needed if international research is to embrace both the bright and the more shadowy aspects of social capital....

  20. Piketty’s Capital

    DEFF Research Database (Denmark)

    Larsen, Øjvind

    2016-01-01

    Piketty’s Capital in Twenty-First Century has posed a totally new platform for the discussion of the economy and capitalism. Piketty has reinvented the classical political economy founded by Adam Smith in his 1776 Wealth of Nations. Piketty has shown via massive historical research how growth...... and inequality have developed since 1793. Piketty’s conclusion is that the French Revolution did not change the existing inequality either in the medium or in the long term. Piketty’s prediction is that a new form of global capitalism will arise, patrimonial capitalism, in which inequality will develop further...

  1. Social Capital Database

    DEFF Research Database (Denmark)

    Paldam, Martin; Svendsen, Gert Tinggaard

    2005-01-01

      This report has two purposes: The first purpose is to present our 4-page question­naire, which measures social capital. It is close to the main definitions of social capital and contains the most successful measures from the literature. Also it is easy to apply as discussed. The second purpose...... is to present the social capital database we have collected for 21 countries using the question­naire. We do this by comparing the level of social capital in the countries covered. That is, the report compares the marginals from the 21 surveys....

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

    International Nuclear Information System (INIS)

    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)

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

    International Nuclear Information System (INIS)

    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.)

  4. Management of femoral artery pseudoaneurysm due to addictive drug injection

    Institute of Scientific and Technical Information of China (English)

    李建文; 王三明; 陈小东

    2004-01-01

    Objective: To study surgical management for patients with femoral pseudoaneurysm resulting from addictive druginjection.Methods: Clinical data of 34 patients with femoral pseudoaneurysm resulting from addictive drug injection were retrospectively reviewed.Results: Thirteen patients underwent bypass graft ( end to side) of external iliac artery and superficial femoral artery using expanded polytetrafluoroethylene (ePTFE).Three patients who had an autogenous saphenous vein graft in situs, one of whom was then performed an ePTFE graft when rupture and bleeding occurred at the anastomotic site. Color Doppler image showed patent grafted blood vessels in all the patients after operation. Eighteen patients had their femoral arteries ligated. Limbs of all the 34 patients were saved.Conclusions: Ligating femoral artery is an effective way to treat femoral artery pseudoaneurysm if autogenous saphenous vein graft or artificial vessel graft is notapplicable.

  5. Operative Management of Crossover Femoral-femoral Graft Erosion into Bladder: A Case Report.

    Science.gov (United States)

    Motiani, Karan; Mahdy, Ayman

    2016-09-01

    Erosion of vascular grafts is not uncommon as seen in the recent literature. There have been many case reports documenting the work up and management of erosion of these grafts into bowel. We report a case of a crossover femoral-femoral graft that eroded into the anterior bladder wall and was incidentally found as an adherent bladder stone during cystoscopy. We demonstrate the importance of having a high level of clinical suspicion for eroding vascular grafts when preoperative imaging shows close proximity of graft to bladder. PMID:27462547

  6. Isolated common femoral artery aneurysm: a case report

    OpenAIRE

    Sharma, Saurabh; Nalachandran, Sanjay

    2009-01-01

    Introduction Isolated aneurysm of common femoral artery is a rare occurrence. They may mimic other common conditions like groin lymph nodes or groin hernia. Case presentation Here we present a case of 61-years-old Chinese gentleman who presented with a right groin lump, which was suspected to be groin hernia but turned out common femoral artery aneurysm. The aneurysm was surgically excised and a prosthetic vascular repair was done. Conclusion Isolated common femoral artery aneurysms are rare ...

  7. The Performance of Intellectual Capital

    DEFF Research Database (Denmark)

    Murthy, Vijaya; Mouritsen, Jan

    2011-01-01

    between human, organisational, relational and financial capital. Design/methodology/approach – The paper uses a case study of a firm that invests in intellectual capital in order to develop financial capital. It traces the relationship between intellectual capital elements and financial capital via...

  8. [Isolated true aneurysm of the deep femoral artery].

    Science.gov (United States)

    Salomon du Mont, L; Holzer, T; Kazandjian, C; Saucy, F; Corpataux, J M; Rinckenbach, S; Déglise, S

    2016-07-01

    Aneurysms of the deep femoral artery, accounting for 5% of all femoral aneurysms, are uncommon. There is a serious risk of rupture. We report the case of an 83-year-old patient with a painless pulsatile mass in the right groin due to an aneurysm of the deep femoral artery. History taking revealed no cardiovascular risk factors and no other aneurysms at other localizations. The etiology remained unclear because no recent history of local trauma or puncture was found. ACT angiography was performed, revealing a true isolated aneurysm of the deep femoral artery with a diameter of 90mm, beginning 1cm after its origin. There were no signs of rupture or distal emboli. Due to unsuitable anatomy for an endovascular approach, the patient underwent open surgery, with exclusion of the aneurysm and interposition of an 8-mm Dacron graft to preserve deep femoral artery flow. Due to their localization, the diagnosis and the management of aneurysms of the deep femoral artery can be difficult. Options are surgical exclusion or an endovascular approach in the absence of symptoms or as a bridging therapy. If possible, blood flow to the distal deep femoral artery should be maintained, the decision depending also on the patency of the superficial femoral artery. In case of large size, aneurysms of the deep femoral artery should be treated without any delay. PMID:27289256

  9. Treatment of ipsilateral femoral neck and shaft fractures

    Institute of Scientific and Technical Information of China (English)

    WANG Hai-qiang; HAN Yi-sheng; LI Xin-kui; LI Ming-quan; WEI Yi-yong; WU Zi-xiang

    2008-01-01

    Objective: To investigate the clinical characteristics, treatment options and causes of misdiagnosis of ipsilateral femoral neck and shaft fractures. Methods: Among 20 patients with ipsilateral femoral neck and shaft fractures, 19 were treated operatively and 1 was treated conservatively. Sixteen cases of femoral shaft fractures were treated by open reduction and internal fixation with compressive plate, and 2 cases were treated with interlocking intramedullary nailing. Eighteen femoral neck fractures were treated with cannulated screws. Another patient was treated with proximal femoral nail to fix both the neck and shaft. Delayed diagnosis for femoral neck frac tures occurred in 2 cases preoperatively. Results: A total of 19 patients were followed up. The follow up period ranged from 5 to 48 months with an average of 15 months. All the fractures were healed. Conclusion: For case of femoral shaft fracture caused by high energy injury, an AP pelvic film should be routinely taken. Once the femoral neck fracture is recognized, operative reduction and fixation should be performed in time. Femoral neck and shaft fractures should be fixed separately.

  10. Capital-Skill Complementarity: Does capital disaggregation matter?

    OpenAIRE

    Correa, Juan; Lorca, Miguel; Parro, Francisco

    2014-01-01

    Using Chilean manufacturing plants data, we�find: (1) the elasticity of substitution between capital and skilled labor is lower than the elasticity of substitution between capital and unskilled labor, and (2) the higher the technological component of the capital stock the larger the size of complementarity between capital and skilled labor. Our�findings show that capital, as an aggregate input, may under(over) state the complementarity between labor and the type of capital these workers actua...

  11. Capital Flows to Brazil: The Endogeneity of Capital Controls

    OpenAIRE

    Eliane A. Cardoso; Ilan Goldfajn

    1998-01-01

    This paper creates an index of capital controls to analyze the determinants of capital flows to Brazil, accounting for the endogeneity of capital controls by considering a government that sets controls in response to capital flows. It finds that the government reacts strongly to capital flows by increasing controls on inflows during booms and relaxing them in moments of distress. The paper estimates a vector autoregression with capital flows, controls, and interest differentials. It shows tha...

  12. Linguistic Capital Pays Dividends

    Science.gov (United States)

    Linse, Caroline

    2013-01-01

    Some 37 million U.S. residents speak Spanish at home and more than 55% of them say they also speak English. That creates what is called linguistic capital. Although linguistic capital is difficult to quantify, it is enormously valuable and is determined by an individual's language competency, and is too frequently wasted instead of being…

  13. The Genesis of Capitalism

    DEFF Research Database (Denmark)

    Li, Xing

    2004-01-01

     This paper aims to offer a framework of interpreting the “evolution” of capitalism that is reaching every corner of the world and has achieved greater legitimacy than at any time in human history. It covers an interdisciplinary discussion on the development of market capitalism that has been cha...

  14. Venture capital and internationalization

    NARCIS (Netherlands)

    Schertler, Andrea; Tykvova, Tereza

    2011-01-01

    Cross-border investments represent a substantial share of venture capital activities. We use a comprehensive dataset on investments worldwide to analyze the internationalization of venture capital financing. We postulate that cross-border activity is shaped by macroeconomic factors in the venture ca

  15. Human Capital and Retirement

    NARCIS (Netherlands)

    P. Alders

    1999-01-01

    textabstractThis paper investigates the relation between human capital and retirement when the age of retirement is endogenous. This relation is examined in a life-cycle earnings model. An employee works full time until retirement. The worker accumulates human capital by training- on-the-job and by

  16. Persistent knee complaints after retrograde unreamed nailing of femoral shaft fractures

    NARCIS (Netherlands)

    El Moumni, Mostafa; Schraven, Pim; ten Duis, Henk Jan; Wendt, Klaus

    2010-01-01

    Retrograde nailing is an attractive method for stabilisation of femoral shaft fractures in cases of polytrauma, ipsilateral pelvic, acetabular, tibial and femoral neck fractures, bilateral femoral fractures, obese and pregnant patients. However, retrograde nailing may result in complaints about the

  17. 78 FR 76973 - Regulatory Capital Rules: Regulatory Capital, Implementation of Basel III, Capital Adequacy...

    Science.gov (United States)

    2013-12-20

    ..., and 225 Regulations H, Q, and Y RIN 7100-AD 87 Regulatory Capital Rules: Regulatory Capital, Implementation of Basel III, Capital Adequacy, Transition Provisions, Prompt Corrective Action, Standardized...-Based Capital Rule, and Market Risk Capital Rule AGENCY: Board of Governors of the Federal...

  18. Social Capital in Asia

    DEFF Research Database (Denmark)

    Li, Peter Ping; Redding, Gordon

    2014-01-01

    This article provides an overview of social capital in Asia. Social capital is trust and appears in two main forms: relational, based on societal norms, and systemic, based on societal institutions. The relational encourages personalistic transactions; and systemic trust, supports more formal......, and usually larger, transactions backed by law. For economic development, the systemic form becomes crucial but needs to be compatible with relational norms. The dimensions of social capital are often dual in nature. This article employs a theory that accepts this and analyses the phenomena as yin......–yang balancing, seeing trust as a culturally determined enabler of social cooperation. The evolutions of trustworthiness in Japan, China, and the Philippines are analysed. This article contributes to the literature on varieties of capitalism and business systems as well as that on social capital. It raises...

  19. Measuring Social Capital

    DEFF Research Database (Denmark)

    Svendsen, Gert Tinggaard; Bjørnskov, Christian

    2007-01-01

    How to construct a robust measure of social capital? This paper contains two contributions. The first is an attempt to establish a broad social capital measure based on four indicators, the Freedom House Index, an index of perceived corruption from Transparency International, and scores on civic...... participation and generalized trust. This measure is then applied by comparing the level of social capital in 25 countries from Western and Eastern Europe. Our nine cluster analysis shows that Switzerland has the highest score, followed by the Netherlands and Scandinavia. At the other end of the continuum we...... find post-communist countries and Southern Italy. The findings for this specific sample suggest that institutions matter for social capital and the relationship between decentralization and social capital emerges as a promising line of inquiry. Thus, the highest scoring countries in the sample may...

  20. 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

  1. Study on the proximal femoral parameters in the healthy Chinese

    International Nuclear Information System (INIS)

    Objective: To explore the characteristics of proximal femoral parameter in the healthy Chinese and provide anatomic basis for the design and research of the domestic prosthesis. Methods: One hundred computed radiographs perpendicular to the hip joint were selected randomly and the proximal femoral parameter were measured by means of Unisight software. These parameters include diameter of femoral head, length of femoral neck, neck-shaft angle, offset, high of femoral head, the width of bone medullary cavity at the plane of lesser trochanter, 20mm above and below the lesser trochanter, diameter and height of the narrow cavity, canal flare index(CFI) and metaphyseal canal flare index (MCFI). The proximal femoral parameters among the Chinese, American and European were compared. Results: There were significant differences in the proximal femoral parameters between ours and American and European, especially in aspect of offset, height of femoral head, diameter of femoral head, the width of bone medullary cavity at the plane of lesser trochanter, 20mm above and below the lesser trochanter and diameter of the narrow cavity. The percentage of funnel-shaped femora (CFI>4.7) in our group was larger than that of the American or the European (P<0.01), which was 20%, 8%, and 11.5% respectively, but there was no significant difference between ours and other domestic scholar's. Conclusion: Computed radiograph system facililates to the research of the morphology of the proximal femur and the measurement of relative parameters and the survey of the characteristics of Chinese femoral. It is important for research and manufacture of the domestic prosthesis fitting the features of the femurs of the Chinese femoral to set up a database of the healthy Chinese proximal femora. (authors)

  2. 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.

  3. Femoral compressive neuropathy from iliopsoas haematoma complicating dengue hemorrhagic fever

    Institute of Scientific and Technical Information of China (English)

    Sneha Ganu; Yesha Mehta

    2013-01-01

    Dengue fever is a debilitating mosquito-borne disease caused by dengue virus. We reported a case of femoral compression neuropathy due to iliopsoas hematoma complicating dengue hemorrhagic fever. Iliopsoas muscle hematoma can cause femoral neuropathy with resultant pain and paralysis. Such manifestations are not well documented in the literature. The pathogenesis of hematoma and compressive neuropathy with its appropriate management is discussed.

  4. Capital Humano y Productividad

    OpenAIRE

    Ángel de la Fuente

    2015-01-01

    Este trabajo contiene un breve panorama de la literatura empírica sobre capital humano y productividad y resume los resultados de mi propio trabajo sobre el tema. En conjunto, la evidencia disponible sugiere que la inversión en educación tiene un efecto positivo, significativo y cuantitativamente importante sobre el crecimiento de la productividad. De acuerdo con mis estimaciones, además, la rentabilidad social de la inversión en capital humano es mayor que la del capital físico en la mayor p...

  5. Complete guidewire retention after femoral vein catheterization.

    Science.gov (United States)

    Cat, Bahar Gulcay; Guler, Sertac; Soyuduru, Murat; Guven, Ibrahim; Ramadan, Hayri

    2015-01-01

    Central venous catheters (CVCs) are often used for various purposes in the emergency departments (ED). The main uses of CVCs in the EDs are emergent hemodialysis, in situations where peripheral vein catheterization cannot be achieved, and continuous invasive hemodynamic monitoring. The complications related to CVC insertion are usually mechanical and observed in the near term after the procedure. Retained CVC guidewire after catheterization is a rare complication in the published reports and usually related with intra- or postoperative settings and jugular or subclavian vein. The present study reported a young female patient who underwent left femoral vein catheterization 6 months earlier in an intensive care unit of another hospital and was diagnosed with complete guidewire retention in the ED. To the best of the authors' knowledge, this is the first case in published reports with a diagnosis of retained CVC guidewire with retrograde migration into the femoral vein. Surprisingly, the patient developed no thrombotic or embolic complication during this 6-month period. PMID:26657235

  6. SEXUAL DIMORPHISM OF MAXIMUM FEMORAL LENGTH

    Directory of Open Access Journals (Sweden)

    Pandya A M

    2011-04-01

    Full Text Available Sexual identification from the skeletal parts has medico legal and anthropological importance. Present study aims to obtain values of maximum femoral length and to evaluate its possible usefulness in determining correct sexual identification. Study sample consisted of 184 dry, normal, adult, human femora (136 male & 48 female from skeletal collections of Anatomy department, M. P. Shah Medical College, Jamnagar, Gujarat. Maximum length of femur was considered as maximum vertical distance between upper end of head of femur and the lowest point on femoral condyle, measured with the osteometric board. Mean Values obtained were, 451.81 and 417.48 for right male and female, and 453.35 and 420.44 for left male and female respectively. Higher value in male was statistically highly significant (P< 0.001 on both sides. Demarking point (D.P. analysis of the data showed that right femora with maximum length more than 476.70 were definitely male and less than 379.99 were definitely female; while for left bones, femora with maximum length more than 484.49 were definitely male and less than 385.73 were definitely female. Maximum length identified 13.43% of right male femora, 4.35% of right female femora, 7.25% of left male femora and 8% of left female femora. [National J of Med Res 2011; 1(2.000: 67-70

  7. 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

  8. The duplicated longitudinal epiphysis or ''kissing delta phalanx'': evolution and variation in three different disorders

    Energy Technology Data Exchange (ETDEWEB)

    Elliott, Alison M. [Department of Biochemistry and Medical Genetics, University of Manitoba, 770 Bannatyne Avenue, R3E 0W3, Winnipeg, Manitoba (Canada); Evans, Jane A.; Chudley, Albert E. [Department of Biochemistry and Medical Genetics, University of Manitoba, 770 Bannatyne Avenue, R3E 0W3, Winnipeg, Manitoba (Canada); Department of Pediatrics and Child Health, University of Manitoba and Health Sciences Centre, Winnipeg, Manitoba (Canada); Reed, Martin H. [Department of Biochemistry and Medical Genetics, University of Manitoba, 770 Bannatyne Avenue, R3E 0W3, Winnipeg, Manitoba (Canada); Department of Pediatrics and Child Health, University of Manitoba and Health Sciences Centre, Winnipeg, Manitoba (Canada); Department of Radiology, University of Manitoba and Health Sciences Centre, Winnipeg, Manitoba (Canada)

    2004-06-01

    The delta phalanx, also known as the delta bone, or longitudinal epiphyseal bracket (LEB), has been described in a variety of syndromes and dysplasias. However, the ''kissing delta phalanx'' is not as well recognized in the literature; it consists of a duplicated longitudinal bracketed epiphysis, or a complex of two adjacent delta bones, with opposing convex portions facing each other. Magnetic resonance imaging of the kissing delta phalanx has not been previously described. To describe the evolution, variation and associated osseous anomalies of the kissing delta phalanx in three patients with distinct distal limb malformations using both plain films and magnetic resonance imaging. Patient 1 had Rubinstein-Taybi syndrome and, in addition to a kissing delta phalanx in both feet, had corresponding delta metatarsals (MT1). Patient 2 had Cenani-Lenz syndactyly with distinct variation of the kissing delta phalanx in each hand. He had a disorganized appearance to the phalanges, metacarpal fusions and carpal coalitions. Patient 3 had an isolated oligosyndactyly of the left hand with metacarpal fusions and carpal coalitions. All three patients were followed over time. We describe two types of kissing delta phalanges: separated (without fusion of the corresponding epiphyseal brackets) and nonseparated (with fusion of the corresponding epiphyseal brackets). Both types can be seen in the same patient and are a reflection of the relative degree of segmentation of the two delta bones. (orig.)

  9. Capital Projects Application (CPA)

    Data.gov (United States)

    General Services Administration — Capital Projects application (CPA) provides users with the ability to maintain project related financial data for Budget Activity (BA) 51, 55, 64, 01, 02, 03, 04....

  10. HUMAN CAPITAL INVESTMENT

    Directory of Open Access Journals (Sweden)

    Ph. D. Student Ioana - Julieta Josan

    2012-05-01

    Full Text Available Once with the development of the human capital theory, the education received an economic value. Leading theorists and specialists in the field have shown that the remarkable economic effects of the investments in education influence the chances of acquiring a job and earnings, demonstrating how the theory justifies such an investment. At the hand, the allocation of resources in human capital brings performance and benefits to companies investing in their employees. Also, the investment in human capital is strategic for any country that seeks to create a knowledge economy. Considering the above arguments, the aim of this paper is to highlight the characteristics of investment in human capital, the types of investment, the factors of education investment and the entities interested in investing and their benefits.

  11. Cultural Capital Today

    DEFF Research Database (Denmark)

    Prieur, Annick; Skjøtt-Larsen, Jakob; Rosenlund, Lennart

    2008-01-01

    of social divisions. This leads to a discussion of four core questions: first, are there signs of a strong individualism and, correspondingly, a weak social structuring of lifestyles? The study does not find support for this view. Second, does classical highbrow culture play a central role as a marker......Based on Danish survey data subjected to correspondence analysis, this article aims at carrying out a critical assessment of Pierre Bourdieu's theory of social differentiation in advanced societies as a multi-dimensional phenomenon. As his theory goes, capital volume (economic + cultural capital......) and capital composition (the relative weight of the two) are the main dimensions of social differentiation, which structure the space of social positions as well as the space of lifestyles. The central discussion of the article concerns the character of cultural capital, and the role it plays in the formation...

  12. Thin Capitalization Rules and Multinational Firm Capital Structure

    OpenAIRE

    Blouin, J.; Huizinga, H.P.; Laeven, L.; Nicodeme, G.

    2014-01-01

    This paper examines the impact of thin capitalization rules that limit the tax deductibility of interest on the capital structure of the foreign affiliates of US multinationals. We construct a new data set on thin capitalization rules in 54 countries for the period 1982-2004. Using confidential data on the (internal) leverage of foreign affiliates of US multinationals, we find that thin capitalization rules affect multinational firm capital structure in a significant way. Specifically, restri...

  13. Capital mobility, tax competition, and lobbying for redistributive capital taxation

    OpenAIRE

    Lorz, Jens Oliver

    1996-01-01

    This paper analyzes the impact of international capital mobility on redistributive capital taxation and on lobbying activities by interest groups. It employs a model where different capital endowments lead to a conflict between households concerning their most preferred capital tax rate. Three main results are derived: First, redistributive source based capital taxes or subsidies decline as international tax competition intensifies. Second, lobbying activities of certain interest groups may e...

  14. Religion, Science and Capitalisms

    OpenAIRE

    Rehbein, Boike

    2014-01-01

    This paper enquires into the relation between capitalism, religion and the philosophy of science. We would tend to suppose that there are only superficial and accidental links between them. A closer analysis reveals, however, that the epistemology of contemporary science is still based on a certain interpretation of Christianity and linked to a particular type of capitalism. Science developed after Galileo and Descartes aims at universal truth but was founded on the notion of the Christian ...

  15. Entrepreneurship and heterogeneous capital

    OpenAIRE

    Foss, Nicolai J.; Klein, Peter G.

    2008-01-01

    Entrepreneurship is ultimately about the arrangement of resources into productive activi-ties. Much of the entrepreneurship literature, however, has focused on the demand side of the market. While resource heterogeneity is a feature of many theories of the firm, such theories are not built on a systematic theory of capital. We show how the approach to capital developed by the Austrian school of economics provides a natural bridge between theory of entrepreneurship and the theory of the firm. ...

  16. Empreendedorismo na capital amazonense

    OpenAIRE

    Filho, Aécio Flávio Ferreira da Silva

    2010-01-01

    This research was elaborated to evaluate entrepreneurship in the Capital of the Amazon State, Brazil. Its relevance is due to the non-existent literature in the subject of entrepreneurship, in the Northern Region of Brazil. The available Brazilian literary archive comprehends only the main cities located in the Southern and Northeastern Regions of the country. There is no research in the Northern Region – where the Amazon State and its Capital, Manaus, are found – and thus lies the reason for...

  17. Measuring Natural Capital

    OpenAIRE

    Dariana Tani

    2014-01-01

    The purpose of this paper is to highlight the importance of establishing a system of natural capital accounting. Natural capital is integral to the economy and yet it is routinely taken for granted because the goods and services it provides are generally freely available. The consequence is that without prices, these resources are not being allocated efficiently within the economy and opportunities for significant gains in well-being and the possibility of long-term future growth are being lo...

  18. Private equity and regulatory capital

    NARCIS (Netherlands)

    D. Bongaerts; E. Charlier

    2009-01-01

    Regulatory capital requirements for European banks have been put forward in the Basel II Capital Framework and subsequently in the capital requirements directive (CRD) of the EU. We provide a detailed discussion of the capital requirements for private equity investments under different approaches. F

  19. Subchondral insufficiency fracture of the femoral head and medial femoral condyle

    International Nuclear Information System (INIS)

    This case report documents the clinical, radiographic, and histologic findings in a 69-year-old obese man, who had subchondral insufficiency fracture both in the femoral head and medial femoral condyle. On plain radiographs, both lesions underwent subchondral collapse. Magnetic resonance images of the left hip showed a bone marrow edema pattern with associated low-intensity band on T1-weighted images, which was convex to the articular surface. The histopathologic findings in the hip and knee were characterized by the presence of a subchondral fracture with associated callus and granulation tissue along both sides of a fracture line. There was no evidence of antecedent osteonecrosis. To our knowledge, this is the first case report to describe the multiple occurrence of collapsed subchondral insufficiency fracture. (orig.)

  20. Entrepreneurs’ human and social capital

    DEFF Research Database (Denmark)

    Shayegheh Ashourizadeh, Shayegheh; Rezaei, Shahamak; Schøtt, Thomas;

    2014-01-01

    Abstract: It is widely acknowledged that entrepreneurs’ human capital in form of education and social capital in form of networking are mutually beneficial and also that both human and social capital benefit their performance. Here, the hypothesis is that human and social capital, in combination......, provide added value and jointly add a further boost to performance, specifically if the form of exporting. Global Entrepreneurship Monitor provides data on 52,946 entrepreneurs, who reported on exporting and networking for advice. Hierarchical linear modelling shows that human capital promotes social...... capital, that human capital and social capital (specifically networking in the international environment, work-place, professions and market, but not in the private sphere) both benefit export directly and that human capital amplifies the benefit of social capital, especially through international...

  1. Contralateral reversed distal femoral locking plate for fixation of subtrochanteric femoral fractures

    Institute of Scientific and Technical Information of China (English)

    Paritosh Gogna; Reetadyuti Mukhopadhyay; Amanpreet Singh; Ashish Devgan; Sahil Arora; Amit Batra; Sushil Kumar Yadav

    2015-01-01

    Purpose:Subtrochanteric fractures of the femur are being managed successfully with various intramedullary and extramedulary implants with reasonable success.However,these implants require precise placement under image intensifier guidance,which exposes the surgeon to substantial amount of radiation.It also restricts the management of these fractures at peripheral centers where facility of image intensifiers is not available.Keeping this in mind we designed this study to identify if contralateral reversed distal femoral locking plate can be used successfully without the use of image intensifier.Methods:Twenty-four consecutive patients (18 men and 6 women) with a mean age of 28 years (range 19-47 years) suffering subtrochanteric fractures of the femur underwent open reduction and internal fixation with reversed contralateral distal femoral locking plate.The outcome was assessed at the mean follow-up period of 3.2 years (range 2-4.6 years) using the Harris hip score.Results:Twenty-one fractures united with the primary procedure,with a mean time of consolidation being 11 weeks (range,9-16 weeks).One patient developed superficial suture line infection,which resolved with oral antibiotics.Another patient had a fall 3 weeks after surgery and broke the plate.Repeat surgery with reversed distal femoral locking compression plate was performed along with bone grafting and the fracture united.Two cases had nonunion,which went in for union after bone grafting.The mean Harris hip score at the time of final follow-up was 90.63 (range 82-97).Conclusion:The reversed contralateral distal femoral plate is a biomechanically sound implant,which when used for fixation of the subtrochanteric fractures with minimal soft tissue stripping shows results comparable to those achieved by using other extramedullary implants as well as intramedullary devices.The added advantage of this implant is its usability in the absence of an image intensifier.

  2. Communication Capital Productivity: National Aspect

    OpenAIRE

    Naumik Ekaterina G.

    2012-01-01

    The article offers suggestions for assessing communication capital productivity; the contradictions that affect the value of the communication efficiency of capital (the union of the agents of the market of communication services and products allows them to increase the communication capital productivity and to decrease communication capital productivity of competitors) are formulated; the dependence of productivity on the number of communication capital customers of the communication network...

  3. Analysis on Femoral Neck Fractures Using Morphological Variations

    International Nuclear Information System (INIS)

    It has been reported that the femoral morphology has a major correlation to femoral neck fractures(FNF). Previous studies to analyze these correlations have relied on mechanical testing and finite element methods. However, these methods have not been widely applied to various femur samples and models. It is because of the availability of the samples from both patients and cadavers, and also of the geometric limitations in changing the shape of the models. In this study we analyzed femoral neck fractures using a parameterized femoral model that could provide flexibility in changing the geometry of the model for the wide applications of FNF analysis. With the parameterization a variety of models could be generated by changing four major dimensions: femoral head diameter(FHD), femoral neck diameter(FND), femoral neck length(FNL), and neck-shaft angle(NSA). We have performed FEA on the models to compute the stress distributions and reaction forces, and compare them with the data previously generated from mechanical testing. The analysis results indicate that the FND is significantly related with the FNF and the FHD is not significantly related with the FNF

  4. Treatment of postcatheterization femoral arteriovenous fistulas with simple prolonged bandaging

    Institute of Scientific and Technical Information of China (English)

    ZHOU Tao; LIU Zhen-jiang; ZHOU Sheng-hua; SHEN Xiang-qian; LIU Qi-ming; FANG Zhen-fei; HU Xin-qun; LI Jiang; L(U) Xiao-lin

    2007-01-01

    Background The methods for the treatment of postcatheterization femoral arteriovenous fistulas (AVF-s) - simple observation, ultrasound guided compression, covered stents implantation and coil embolization have poor outcome.Surgery is the standard method for treatment of femoral AVFs, but it is a traumatic operation. In this study, we report the results of the treatment of postcatheterization femoral AVFs by simple prolonged compressing bandage.Methods To treat iatrogenic femoral AVFs caused by transfemoral catheterization, prolonged binding with elastic or common bandage was applied in 16 cases. Catheterization was performed in 7 cases for radiofrequency current catheter ablation, in 4 for occlusion of congenital heart disease, in 3 for percutaneous coronary intervention, in 1 for coronary angiography and in 1 for right heart catheterization.Results All iatrogenic femoral AVFs were healed after simple binding with elastic or common bandage for 4-46 days (mean (15±10) days). During the period of binding, local skins ulceration occurred at puncture site in two cases and femoral vein thrombus was found in one patient. During 6-24 months (mean (11.8±3.6) months) followup with colour Doppler ultrasonography, no recurrent arteriovenous shunting or other complications were observed.Conclusion The results suggest that simple prolonged bandaging for postcatheterization femoral AVFs is an effective and economical procedure.

  5. Analysis on Femoral Neck Fractures Using Morphological Variations

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Ho Sang; Park, Byoung Keon; Kim, Jay Jung [Hanyang University, Seoul (Korea, Republic of); Chae, Je Wook [Agency for Defense Development, Daejeon (Korea, Republic of)

    2011-10-15

    It has been reported that the femoral morphology has a major correlation to femoral neck fractures(FNF). Previous studies to analyze these correlations have relied on mechanical testing and finite element methods. However, these methods have not been widely applied to various femur samples and models. It is because of the availability of the samples from both patients and cadavers, and also of the geometric limitations in changing the shape of the models. In this study we analyzed femoral neck fractures using a parameterized femoral model that could provide flexibility in changing the geometry of the model for the wide applications of FNF analysis. With the parameterization a variety of models could be generated by changing four major dimensions: femoral head diameter(FHD), femoral neck diameter(FND), femoral neck length(FNL), and neck-shaft angle(NSA). We have performed FEA on the models to compute the stress distributions and reaction forces, and compare them with the data previously generated from mechanical testing. The analysis results indicate that the FND is significantly related with the FNF and the FHD is not significantly related with the FNF.

  6. Femoral neck buttressing: a radiographic and histologic analysis

    International Nuclear Information System (INIS)

    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. Sequential scintimetry after femoral neck fracture

    International Nuclear Information System (INIS)

    Forty-five patients with recent cervical hip fractures were included in a prospective, clinical, radiographic and sequential scintimetric study. Striking changes in radionuclide uptake over the entire hip region on the fracture side were found during the first 5 postoperative months. Fractures that healed without complications showed the highest relative femoral head uptake at 1 week and a peak value at 6 weeks, followed by a gradual decline at the subsequent examinations. Fractures with complications (redisplacement, nonunion, or late segmental collapse) showed a lower initial uptake and a more gradual increase and only a slight tendency towards increased uptake after 3 months. The accuracy in predicting nonunion with scintimetric examination alone is high both at 1 and at 6 weeks, and the accuracy is almost equally high with combined scintimetric, radiographic, and clinical assessment 3-5 months postoperatively. (author)

  8. 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 of...... the drug and metabolite ranged from below the limit of quantification to 0.058 mg/kg (median 0.0098 mg/kg). This concentration range, which largely corresponds to published in vivo plasmalevels under therapy, may serve as a reference for judgment of postmortem cases involving risperidone. In one case......, risperidone was judged to be a contributing factor to death, and the sum of concentrations was 0.29 mg/kg. This concentration is of the same order of magnitude as observed for plasma levels in clinical intoxication cases. For the remaining seven cases, the cause of death was unclear. The measurements observed...

  9. FEMORAL MONONEUROPATHY: COMPLICATING A DIFFICULT PELVIC URETEROLITHOTOMY

    Directory of Open Access Journals (Sweden)

    D. Mehraban

    1996-07-01

    Full Text Available Femoral mononeuropathy is a complication of gynecological and urological operations. Tlte objective of this citse report is to bring to the attention of fellow urologists the very existence of this complication and offer measures to prevent it. A 48 year old obese worman with a 2 year history of frequent left renal colics, anil a nonfunction left kidney on IVP underwent a retrograde ureterogram study anil a transvaginal ureterolithotomy, in an exaggerated lithotomy position. Postoperatively, a left leg paralysis required 3 weeks of care and encouragement to heal. To prevent this complication, avoid putting too long and too much pressure by retractors on the psoas muscles. During the abdomino-perineal procedures, frequent change of retractor site and monitoring of distal arterial pulses would he helpful. Also, do not use the exaggerated lithotomy position for an extended period of time.

  10. Surgical hip dislocation: techniques for success.

    Science.gov (United States)

    Ricciardi, Benjamin F; Sink, Ernest L

    2014-01-01

    Surgical hip dislocation (SHD) is a versatile approach used to address both intra-articular and extra-articular pathology around the hip joint in both pediatric and adult patients. It allows anterior dislocation of the femoral head for direct visualization of the hip joint while preserving femoral head vascularity and minimizing trauma to the abductor musculature. Previously described indications for SHD include femoroacetabular impingement, deformity resulting from Legg-Calve-Perthes disease, slipped capital femoral epiphysis, periarticular trauma, benign lesions of the hip joint, and osteochondral lesions. In this review, we will describe current surgical techniques, indications, and clinical outcomes for SHD. PMID:25207733

  11. MORPHOLOGICAL STUDY OF MEDIAL CIRCUMFLEX FEMORAL ARTERY IN HUMAN CADAVERS

    Directory of Open Access Journals (Sweden)

    Brijesh R. Aghera

    2014-10-01

    Full Text Available Background: Medial circumflex femoral artery is an important branch of Profunda femoris artery. It is an important artery in supplying blood to the head and neck of the femur, the adductor muscles and form anastomosis around head of femur. So study of variation of medial circumflex femoral artery great value for surgeon and orthopaedic surgeries. Materials and Methods: The present study includes 102 lower limbs of adult formalin fixed human cadavers used for the routine dissection procedure for under graduate and post graduate students in the department of Anatomy, M.R. Medical College, KBN Medical college and H K E Homeopathic College, Gulbarga (India during 2011-2014.The study was done by dissection method as per Cunningham’s manual of practical Anatomy. Result: In present study, we found that 25 extremities (25.49% medial circumflex femoral artery was originated directly from femoral artery. In 10 extremities (9.80% a common trunk was observed form medial circumflex femoral with femoral artery. Normal study was observed in 66 extremities (64.70%. Conclusion: In present study and other past studies we conclude that knowledge of variation in this artery is very important to preventing injury to vessels during surgical procedures around hip joint and also has important value in plastic surgery operations as the vascular pedicle of grafts such as the transverse upper gracilis (TUG flap, medial thigh flap and medial circumflex femoral (gracilis perforator free flap. During case of selective arteriography in ischaemic necrosis of the femoral head to know the arterial supply of the femoral head it is used.

  12. Aneurysm of the superficial femoral artery in an infant

    International Nuclear Information System (INIS)

    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.)

  13. Human Capital and Optimal Positive Taxation of Capital Income

    OpenAIRE

    Jacobs, B; Bovenberg, A.L.

    2005-01-01

    This paper analyzes optimal linear taxes on capital and labor incomes in a life-cyclemodel of human capital investment, financial savings, and labor supply with heteroge-nous individuals. A dual income tax with a positive marginal tax rate on not onlylabor income but also capital income is optimal. The positive tax on capital incomeserves to alleviate the distortions of the labor tax on human capital accumulation.The optimal marginal tax rate on capital income is lower than that on labor inco...

  14. On the capitalization and cultivation of social capital

    DEFF Research Database (Denmark)

    Svendsen, Gunnar Lind Haase; Waldstrøm, Christian

    2008-01-01

    Bourdieu's (1986) seminal definition of social capital as "the aggregate of the actual or potential resources" is reflected in older definitions, as well as in many current within sociology (e.g. Portes, 2000) and organization (Adler & Kwon, 2002). The definition is interesting, because it directs...... a dual focus on social capital as both immediately and potentially productive resources, i.e. assets that can be immediately capitalized by individuals as well as ‘cultivated' for future use. We argue that to further operationalize this concept we must distinguish between actual/potential social capital......, within a neo-capital framework that unifies the existing ‘plethora' of capitals....

  15. Capital Expert System

    Science.gov (United States)

    Dowell, Laurie; Gary, Jack; Illingworth, Bill; Sargent, Tom

    1987-05-01

    Gathering information, necessary forms, and financial calculations needed to generate a "capital investment proposal" is an extremely complex and difficult process. The intent of the capital investment proposal is to ensure management that the proposed investment has been thoroughly investigated and will have a positive impact on corporate goals. Meeting this requirement typically takes four or five experts a total of 12 hours to generate a "Capital Package." A Capital Expert System was therefore developed using "Personal Consultant." The completed system is hybrid and as such does not depend solely on rules but incorporates several different software packages that communicate through variables and functions passed from one to another. This paper describes the use of expert system techniques, methodology in building the knowledge base, contexts, LISP functions, data base, and special challenges that had to be overcome to create this system. The Capital Expert System is the successful result of a unique integration of artificial intelligence with business accounting, financial forms generation, and investment proposal expertise.

  16. Organizational networks and social capital

    DEFF Research Database (Denmark)

    Svendsen, Gunnar Lind Haase; Waldstrøm, Christian

    2013-01-01

    This chapter presents a framework for understanding organizational networks and social capital through the lens of “social capital ownership” as well as the private and collective goods provided through this ownership. More specifically, it argues that ownership of social capital in organizations...... is closely connected to four types of social capital – two belonging to the bridging social capital type, and two belonging to the bonding social capital type. The chapter first reviews literature on organizational social capital and then directly focuses on ownership of social capital in organizations......, as well as the derived benefits, or losses. Next, the chapter presents an empirical case apt to illustrate the theoretical findings in part one, namely the nineteenth-century Danish Cooperative Dairy Movement (Svendsen and Svendsen 2004). It is demonstrated how social capital among Danish peasants...

  17. Quantitation of perfusion in ischemic necrosis of femoral head by fracture

    International Nuclear Information System (INIS)

    The radionuclide angiography of femoral head was measured in 10 normal controls and 12 cases of ischemic necrosis of femoral head (INFH) by fracture using 99mTc MDP bone imaging. The results demonstrated that, in normal subjects the difference of femoral perfusion index (FPI) of both femoral head was 0.4. The difference of FPI between both groups has statistical significance (P<0.001). Therefore, the measurement of perfusion index of femoral head has some help for INFH diagnosis

  18. Unsustainable growth, unsustainable capitalism

    DEFF Research Database (Denmark)

    Næss, Petter

    2006-01-01

    problems, but serve to further highlight the difficulties of changing capitalism towards sustainability. In a profit-oriented economy, capital accumulation is a prime driving force, and non-growth for the economy at large tends to result in serious economic and social crises. On the other hand, a de......This article argues that there is a fundamental contradiction between a profit-oriented economic system and long-term environmental sustainability. The 'solutions' that are proposed by mainstream environmental economists as well as their 'ecological economy' colleagues do not solve the central...... according to which the powers and mechanisms of the natural world are considered totally controllable by humans as if they were mere epiphenomena of the human world. On the other hand, the assumptions of certain ecological economists about the possibility of steady-state capitalism disregard the relation...

  19. Femoral neck fractures complicating gaucher disease in children

    International Nuclear Information System (INIS)

    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. The quadratus femoris graft in old transcervical femoral fractures.

    Directory of Open Access Journals (Sweden)

    Delima D

    1989-07-01

    Full Text Available Sixteen patients with an old transcervical femoral fracture were treated with the quadratus femoris muscle pedicle bone graft with supplementary autografting. The result was a good functional hip in 14 cases.

  1. 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.

  2. Bank Capital Management

    OpenAIRE

    Jokipii, T.K.

    2009-01-01

    The work undertaken in this study empirically explores the determinants of regulatory bank capital bu®ers, and how they in°uence bank decisions. Focusing on bank capital management under the Basel I framework, this thesis serves to address some of the con- cerns that have been voiced regarding the implementation of the new regulation (Basel II) and the broader economic e®ects that could result. In particular, the research chapters of this thesis examine the cyclical behavior of European bank ...

  3. Updating cultural capital theory

    DEFF Research Database (Denmark)

    Prieur, Annick; Savage, Mike

    2011-01-01

    of ‘‘highbrow’’ culture, cultural oppositions can nonetheless readily be detected. We point to nine oppositions, mostly shared between the nations. Three tensions between (a) participation and non-participation in cultural activities; (b) knowledge and ignorance in cultural issues (such as for music, literature...... than absolute terms, and that a field analytic perspective provides the means of understanding cultural capital as such a relative entity. Second, the move from the empirical observation of oppositions to the conceptualisation of cultural capital also demands that the functioning of features...

  4. Five models of capitalism

    Directory of Open Access Journals (Sweden)

    Luiz Carlos Bresser-Pereira

    2012-03-01

    Full Text Available Besides analyzing capitalist societies historically and thinking of them in terms of phases or stages, we may compare different models or varieties of capitalism. In this paper I survey the literature on this subject, and distinguish the classification that has a production or business approach from those that use a mainly political criterion. I identify five forms of capitalism: among the rich countries, the liberal democratic or Anglo-Saxon model, the social or European model, and the endogenous social integration or Japanese model; among developing countries, I distinguish the Asian developmental model from the liberal-dependent model that characterizes most other developing countries, including Brazil.

  5. 人工全髋关节置换中合并股骨近端畸形的股骨侧重建%FEMORAL RECONSTRUCTION IN PATIENTS WITH PROXIMAL FEMORAL DEFORMITY IN TOTAL HIP ARTHROPLASTY

    Institute of Scientific and Technical Information of China (English)

    李锋; 田华; 张克; 刘岩

    2011-01-01

    ), developmental dysplasia of the hip (8 hips), traumatic arthritis of the hip (14 hips), and tuberculosus arthritis of the hip (2 hips). There were 10 males (10 hips) and 15 females (16 hips), with an average age of 64 years (range, 42-82 years). The disease duration was 10 months to 25 years (mean, 10.6 years). The Harris score was 44.2 ± 5.1, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score was 45.0 ± 2.7 before operation. According to Berry's classification system of primary disease, 8 hips were classified as developmental dysplasia of hip, 7 hips as malunion of fracture, 2 hips as chronic tuberculosis, 2 hips as slipped femoral epiphysis, 1 hip as previous subtrochanteric osteotomy, 1 hip as previous shelf operation of the acetabulum, and 5 hips as previous internal fixation; according to the anatomic site of the deformity, there were 5 hips of greater trochanter, 10 hips of femoral neck level, 10 hips of metaphyseal level, and 1 hip of diaphysis. Results All wounds healed by first intention. Deep venous thrombosis occurred in 3 patients within 1 week, and were cured with braking and anticoagulant therapy. Bursal synovitis of great trochanter occurred in 1 patient after 6 weeks, and was eased after taking drugs for pain relief. All patients were followed up 1 year and 6 months to 6 years, with an average of 3 years and 3 months. The Harris score and WOMAC score at last follow-up were 88.4 ± 3.6 and 82.0 ± 5.2 respectively, showing significant differences when compared with preoperative scores (P < 0.05). The X-ray films at last follow-up showed good location of prosthesis and no loosening expect 1 patient who had aseptic loosening and was given revision at 8 months postopera tively. Conclusion Proximal femoral deformity classification will contribute to the choice of prosthesis and surgical strategy, thus the good results of femoral reconstruction and clinical results would be obtained.

  6. Femoral kontroll blant idrettsaktive kvinner : testutvikling og sammenheng med skadehistorikk

    OpenAIRE

    Østvold, Mattis

    2011-01-01

    Purpose: Non-contact knee injuries are often the topic of discussion in relation to injury prevention. The purpose of this study was to develop a standardized test and a standardized analysis method for quantifying changes in the femoral control in a simple but reliable way. We also wanted to quantify the relationship between femoral control and injury history in the sample. Method: Female athletes (n = 95, age = 18 ± 1 years old) who were active in various sports, conducted two weak links...

  7. Medial circumflex femoral artery flap for ischial pressure sore

    OpenAIRE

    Palanivelu S

    2009-01-01

    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 s...

  8. Heterologous mesenchymal stem cells successfully treat femoral pseudarthrosis in rats

    OpenAIRE

    Ferreira Manoel; Silva Paulo; Alvarez Silva Lucas; Bonfim Danielle; Conilho Macedo Müller Lucas; Espósito Christiano; Schanaider Alberto

    2012-01-01

    Abstract Background This study evaluated the effectiveness of treating pseudarthrosis in rats by using bone marrow cell suspensions or cultures of bone marrow mesenchymal stromal cells Methods Thirty-eight specific pathogen-free (SPF) animals were randomly assigned to four groups: Group 1, Control, without surgical intervention; Group 2 (Placebo), experimental model of femoral pseudarthrosis treated only with saline solution; Group 3, experimental model of femoral pseudarthrosis treated with ...

  9. Osteochondral Fractures of the Lateral Femoral Trochlea in Young Athletes

    OpenAIRE

    Walsh, Stewart

    2016-01-01

    Method: Between May 2012 and September 2014 cluster of five patients with large osteochondral fractures of the lateral femoral trochlea were treated at our institution. These all occurred in high level male athletes, one at a decathlete and the other four soccer players. The MRI scan showed a characteristic appearance of a large subchondral fracture involving most of the lateral femoral trochlea. All patients were symptomatic. The patients were treated with open reduction and internal fixatio...

  10. Periprosthetic subtrochanteric femoral fracture in a megaprosthesis of the knee

    Directory of Open Access Journals (Sweden)

    Vaishya Raju

    2013-10-01

    Full Text Available 【Abstract】We report a rare case of periprosthetic posttraumatic fracture of subtrochanteric region of femur after a megaprosthesis of the knee, done for resistant nonunion of distal femur with secondary osteoarthrosis in a 51 years old man. Treatment with a locking femoral plate was able to achieve primary union with a good result. Key words: Periprosthetic fractures; Femur; Femoral fractures; Knee

  11. Brodie's abscess of the femoral neck simulating osteoid osteoma.

    Science.gov (United States)

    Gulati, Yash; Maheshwari, Aditya V

    2007-10-01

    Subacute osteomyelitis (Brodie's abscess) is essentially a problem of diagnosis, and there may be considerable difficulty in distinguishing it from other benign and malignant bone lesions. Though reported in the metaphyseal region of the femur, Brodie's abscess is rarer in the femoral neck. The authors present a case of Brodie's abscess in the femoral neck, which clinico-radiologically simulated an osteoid osteoma. Retrospectively, the presence of a cortical sinus tract should have aroused suspicion.

  12. Contingent Capital with a Capital-Ratio Trigger

    OpenAIRE

    Paul Glasserman; Behzad Nouri

    2012-01-01

    Contingent capital in the form of debt that converts to equity when a bank faces financial distress has been proposed as a mechanism to enhance financial stability and avoid costly government rescues. Specific proposals vary in their choice of conversion trigger and conversion mechanism. We analyze the case of contingent capital with a capital-ratio trigger and partial and ongoing conversion. The capital ratio we use is based on accounting or book values to approximate the regulatory ratios t...

  13. Low field magnetic resonance imaging of femoral neck fractures

    International Nuclear Information System (INIS)

    Fourteen patients with cervical hip fractures were treated with internal fixation using titanium screws. The femoral head vitality was evaluated with 99Tcm-MDP scintigraphy and scintimetry within 2 weeks postoperatively and by serial low field magnetic resonance imaging (MR). Two patients with reduced radionuclide uptake (femoral head ratio < 1.0) developed radiographic signs of femoral head necrosis. MR disclosed the definite area of the necrosis at 2 and 12 months after fracture, respectively. In three of the patients with a high scintimetric uptake (femoral head ratio ≥ 1.0), MR revealed a focal decrease of the signal intensity in the femoral head or neck at 2, 3 and 7 months after fracture, respectively. The radiographs in one of these patients were normal at 7 months after fracture. The second one showed signs of necrosis at 16 months and the last one developed delayed/non-union. With a non-ferromagnetic osteosynthesis the healing course after femoral neck fracture can be studied with low field MR equipment without disturbing artifacts. The time period between ischaemia and definite abnormalities on MR may embrace several months. (orig.)

  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. Femoral Component Survival in Hybrid Total Knee Arthroplasty.

    Science.gov (United States)

    Perry, Clayton R; Perry, Kevin I

    2016-05-01

    Although the majority of North American surgeons perform total knee arthroplasty by cementing both the femoral and the tibial components, hybrid fixation with a press-fit femur and cemented tibia is an alternative form of total knee arthroplasty performed by some. Currently, there is a paucity of literature evaluating long-term outcomes after hybrid total knee arthroplasty. As such, the purpose of the current study was to describe the long-term results of total knee arthroplasty performed using the hybrid technique. The authors retrospectively reviewed a total of 77 hybrid total knee arthroplasties with at least 12 years of follow-up. Clinical and radiographic evaluations were performed to determine patient function and the incidence of femoral component failure after hybrid total knee arthroplasty. At the time of last follow-up, 76 of 77 (99%) of the femoral components remained in place without evidence of loosening. One femoral component failed due to aseptic loosening and was ultimately revised to a cemented femoral component without further complication. In addition, 1 tibial component and 2 patellar components failed due to aseptic loosening. Four tibial polyethylene liners were revised for polyethylene wear. In conclusion, press-fit fixation of the femoral component is a reliable and durable alternative to cemented fixation. [Orthopedics. 2016; 39(3):181-186.]. PMID:27135453

  16. Human Capital and Optimal Positive Taxation of Capital Income

    NARCIS (Netherlands)

    B. Jacobs (Bas); A.L. Bovenberg (Lans)

    2005-01-01

    textabstractThis paper analyzes optimal linear taxes on capital and labor incomes in a life-cycle model of human capital investment, financial savings, and labor supply with heteroge- nous individuals. A dual income tax with a positive marginal tax rate on not only labor income but also capital inco

  17. Thin Capitalization Rules and Multinational Firm Capital Structure

    NARCIS (Netherlands)

    Blouin, J.; Huizinga, H.P.; Laeven, L.; Nicodeme, G.

    2014-01-01

    Abstract: This paper examines the impact of thin capitalization rules that limit the tax deductibility of interest on the capital structure of the foreign affiliates of US multinationals. We construct a new data set on thin capitalization rules in 54 countries for the period 1982-2004. Using confide

  18. Prevascular femoral hernia and its relation with inferior epigastric vessels: a rare presentation of the femoral hernia sac.

    Science.gov (United States)

    Boshnaq, Mohamed; Phan, Yih Chyn; Akhtar, Mansoor; Hamade, Ayman

    2016-01-01

    A 61-year-old man presented to the emergency department, with a 2-week history of a painful lump on his right groin. A diagnosis of an irreducible right femoral hernia was made. As such, an urgent operation was carried out on the same day, and the patient was found to have a rare prevascular femoral hernia in which the sac was lying over the femoral vessels and split by the inferior epigastric vessels into 2 components resembling 2 trouser limbs. The hernia sac presented in a different and challenging way that necessitated meticulous dissection and full orientation of the anatomy of the femoral triangle. Complete dissection and control of the inferior epigastric vessels, and complete reduction of the sac followed by repair with a prosthetic mesh plug were performed successfully. The patient was discharged home the next day. PMID:27090547

  19. Capital Structure and Assets

    DEFF Research Database (Denmark)

    Flor, Christian Riis

    2008-01-01

    post optimally sell the assets or re-optimize the capital structure. Ex ante, more uncertain asset value decreases leverage, but not firm value, and selling the assets becomes less likely. Firms should tend to invest in assets whose value is less correlated to changes in earnings and, in addition...

  20. NANNING China's Green Capital

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ Nanning,the capital city of Guangxi province,is not only the political,economic and cultural center of the province,but also plays an important role in the economic development of southwest China.Nanning's advantageous location makes the city a commercial and communication center,opening China to Southeast Asia.

  1. Is capitalism possible?

    NARCIS (Netherlands)

    Gaay Fortman, B. de

    1998-01-01

    In the two ages of its existence capitalism has given proof of its reformability. It was, however, anti-capitalist blueprints and ideas that constituted a continuous spiritual driving force towards reform. Today, after the collapse of real existing socialism there is an urgent need for new alternati

  2. Towards Transnational Academic Capitalism

    Science.gov (United States)

    Kauppinen, Ilkka

    2012-01-01

    This paper contributes to current debates on the relationship between globalisation and higher education. The main argument of the paper is that we are currently witnessing transnationalisation of academic capitalism. This argument is illustrated by examining the collaboration between transnational corporations and research universities, and how…

  3. Risk capital allocation

    DEFF Research Database (Denmark)

    Hougaard, Jens Leth; Smilgins, Aleksandrs

    Risk capital allocation problems have been widely discussed in the academic literature. We consider a company with multiple subunits having individual portfolios. Hence, when portfolios of subunits are merged, a diversification benefit arises: the risk of the company as a whole is smaller than...

  4. Manage "Human Capital" Strategically

    Science.gov (United States)

    Odden, Allan

    2011-01-01

    To strategically manage human capital in education means restructuring the entire human resource system so that schools not only recruit and retain smart and capable individuals, but also manage them in ways that support the strategic directions of the organization. These management practices must be aligned with a district's education improvement…

  5. Understanding your capital options.

    Science.gov (United States)

    Payne, Christopher T

    2012-05-01

    When planning capital expenditures, hospitals and health systems should understand the following financing considerations: Traditional fixed-rate tax-exempt bonds; Variable-rate financing alternatives; Basel III Accord requirements; Direct tax-exempt bank loans; Total return swaps Taxable financings; Interest-rate swaps and collateral requirements

  6. Human Capital and Sustainability

    Directory of Open Access Journals (Sweden)

    Garry Jacobs

    2011-01-01

    Full Text Available A study of sustainability needs to consider the role of all forms of capital—natural, biological, social, technological, financial, cultural—and the complex ways in which they interact. All forms of capital derive their value, utility and application from human mental awareness, creativity and social innovation. This makes human capital, including social capital, the central determinant of resource productivity and sustainability. Humanity has entered the Anthropocene Epoch in which human changes have become the predominant factor in evolution. Humanity is itself evolving from animal physicality to social vitality to mental individuality. This transition has profound bearing on human productive capabilities, adaptability, creativity and values, the organization of economy, public policy, social awareness and life styles that determine sustainability. This article examines the linkages between population, economic development, employment, education, health, social equity, cultural values, energy intensity and sustainability in the context of evolving human consciousness. It concludes that development of human capital is the critical determinant of long-term sustainability and that efforts to accelerate the evolution of human consciousness and emergence of mentally self-conscious individuals will be the most effective approach for ensuring a sustainable future. Education is the primary lever. Human choice matters.

  7. Revitalizing ecological capital

    NARCIS (Netherlands)

    Swagemakers, P.; Wiskerke, J.S.C.

    2011-01-01

    The modernization of agricultural food production has diminished and is diminishing the sustainable use of the local natural resource base, resulting in the fragmentation of landscapes and the decline of biodiversity. In this paper we analyze the revitalization of ecological capital, which provides

  8. Microfoundations of Social Capital

    DEFF Research Database (Denmark)

    Thöni, Christian; Tyran, Jean-Robert; Wengström, Erik Roland

    We show that the standard trust question routinely used in social capital research is importantly related to cooperation behavior and we provide a microfoundation for this relation. We run a large-scale public goods experiment over the internet in Denmark and find that the trust question is a proxy...

  9. Microfoundations of Social Capital

    DEFF Research Database (Denmark)

    Thöni, Christian; Tyran, Jean-Robert Karl; Wengström, Erik Roland

    2012-01-01

    Research on social capital routinely relies on survey measures of trust which can be collected in large and heterogeneous samples at low cost. We validate such survey measures in an incentivized public good experiment and show that they are importantly related to cooperation behavior in a large...

  10. Planning for Capital Reinvestment.

    Science.gov (United States)

    Biedenweg, Frederick; Weisburg-Swanson, Lynda; Gardner, Catherine

    1998-01-01

    Describes and evaluates four alternatives for planning and budgeting for capital reinvestment for college and university facilities: physical plant auditing; a depreciation-based approach; percentage of current replacement value; and facility subsystem modeling, or life-cycle modeling. Each has advantages and limitations in budgeting for and…

  11. 77 FR 52791 - Regulatory Capital Rules: Regulatory Capital, Implementation of Basel III, Minimum Regulatory...

    Science.gov (United States)

    2012-08-30

    ... Basel III, Minimum Regulatory Capital Ratios, Capital Adequacy, Transition Provisions, and Prompt... Capital Ratios, Capital Adequacy, Transition Provisions, and Prompt Corrective Action AGENCIES: Office of..., Capital Adequacy, Transition Provisions, and Prompt Corrective Action'' to facilitate the organization...

  12. Reconstruction of femoral length from fragmentary femora

    Science.gov (United States)

    Offei, Eric Bekoe; Osabutey, Casmiel Kwabena

    2016-01-01

    The reconstruction of femoral length (FL) from fragmentary femora is an essential step in estimating stature from fragmentary skeletal remains in forensic investigations. While regression formulae for doing this have been suggested for several populations, such formulae have not been established for Ghanaian skeletal remains. This study, therefore, seeks to derive regression formulae for reconstruction of FL from fragmentary femora of skeletal samples obtained from Ghana. Six measurements (vertical head diameter, transverse head diameter, bicondylar breadth, epicondylar breadth, sub-trochanteric anterior-posterior diameter, and sub-trochanteric transverse diameter) were acquired from different anatomical portions of the femur and the relationship between each acquired measurement and FL was analyzed using linear regression. The results indicated significantly moderate-to-high correlations (r=0.580–0.818) between FL and each acquired measurement. The error estimates of the regression formulae were relatively low (i.e., standard error of estimate, 13.66–19.28 mm), suggesting that the discrepancies between actual and estimated stature were relatively low. Compared with other measurements, sub-trochanteric transverse diameter was the best estimate of FL. In the absence of a complete femur, the regression formulae based on the assessed measurements may be used to infer FL, from which stature can be estimated in forensic investigations. PMID:27722014

  13. How venture capital works.

    Science.gov (United States)

    Zider, B

    1998-01-01

    The popular mythology surrounding the U.S. venture-capital industry derives from a previous era. Venture capitalists who nurtured the computer industry in its infancy were legendary both for their risk taking and for their hands-on operating experience. But today things are different, and separating the myths from the realities is crucial to understanding this important piece of the U.S. economy. Today's venture capitalists are more like conservative bankers than the risk takers of days past. They have carved out a specialized niche in the capital markets, filling a void that other institutions cannot serve. They are the linch-pins in an efficient system for meeting the needs of institutional investors looking for high returns, of entrepreneurs seeking funding, and of investment bankers looking for companies to sell. Venture capitalists must earn a consistently superior return on investments in inherently risky businesses. The myth is that they do so by investing in good ideas and good plans. In reality, they invest in good industries--that is, industries that are more competitively forgiving than the market as a whole. And they structure their deals in a way that minimizes their risk and maximizes their returns. Although many entrepreneurs expect venture capitalists to provide them with sage guidance as well as capital, that expectation is unrealistic. Given a typical portfolio of ten companies and a 2,000-hour work year, a venture capital partner spends on average less than two hours per week on any given company. In addition to analyzing the current venture-capital system, the author offers practical advice to entrepreneurs thinking about venture funding.

  14. How venture capital works.

    Science.gov (United States)

    Zider, B

    1998-01-01

    The popular mythology surrounding the U.S. venture-capital industry derives from a previous era. Venture capitalists who nurtured the computer industry in its infancy were legendary both for their risk taking and for their hands-on operating experience. But today things are different, and separating the myths from the realities is crucial to understanding this important piece of the U.S. economy. Today's venture capitalists are more like conservative bankers than the risk takers of days past. They have carved out a specialized niche in the capital markets, filling a void that other institutions cannot serve. They are the linch-pins in an efficient system for meeting the needs of institutional investors looking for high returns, of entrepreneurs seeking funding, and of investment bankers looking for companies to sell. Venture capitalists must earn a consistently superior return on investments in inherently risky businesses. The myth is that they do so by investing in good ideas and good plans. In reality, they invest in good industries--that is, industries that are more competitively forgiving than the market as a whole. And they structure their deals in a way that minimizes their risk and maximizes their returns. Although many entrepreneurs expect venture capitalists to provide them with sage guidance as well as capital, that expectation is unrealistic. Given a typical portfolio of ten companies and a 2,000-hour work year, a venture capital partner spends on average less than two hours per week on any given company. In addition to analyzing the current venture-capital system, the author offers practical advice to entrepreneurs thinking about venture funding. PMID:10187243

  15. Crony Capitalism: Caricature or Category?

    OpenAIRE

    Mazumdar, Surajit

    2008-01-01

    This paper, part of a series on Crony Capitalism and Contemporary India, examines the conceptual meaning of the term crony capitalism, which has acquired considerable popularity since it was used as an explanation for the East Asian crisis. The paper argues that the conception of crony capitalism as a description of a distinct kind of capitalism associated with the State playing a key role in the allocation process suffers from serious deficiencies and therefore does not provide a suitable fr...

  16. Entrepreneurship capital and economic performance

    OpenAIRE

    Audretsch, David B; Keilbach, Max

    2004-01-01

    The neoclassical model of the production function, as applied by Robert Solow to build the neoclassical model of growth, linked labor and capital to output. More recently, Romer and others have expanded the model to include measures of knowledge capital. In this paper we introduce a new factor, entrepreneurship capital, and link it to output in the context of a production function model. This paper explains what is meant by entrepre-neurship capital and why it should influence economic output...

  17. Technology Differences and Capital Flows

    OpenAIRE

    Sebastian Claro

    2004-01-01

    The one-to-one mapping between cross-country differences in capital returns and the direction of international capital flows is broken in a multisector world where international factor price differences are driven by technology differences. A technology-backward or low-return-to-capital country will face capital inflows or outflows after financial integration depending on whether non-tradable demand is bossted or not

  18. Extended Measures of Capital Transactions

    OpenAIRE

    Jorge Selaive; Beatriz Velásquez; José Miguel Villena

    2008-01-01

    In this work, we extend de jure measures of capital account restrictions previously assembled by Miniane (2004) to a set of 181 economies for the period 1996-2005. Additionally, we propose two new measures of capital account restrictions. The first excludes prudential regulation and the second weights the indices by a proxy for the enforcement of capital restrictions. We analyze global tendencies and the process of capital account liberalization in Chile. For the group of economies, we observ...

  19. Risk, capital and financial crisis

    OpenAIRE

    Ghosh, Saibal

    2014-01-01

    Employing data on over 100 banks for Gulf Cooperation Council (GCC) countries during 1996-2011, we test the relation between risk and capital. The findings indicate that banks generally increase capital in response to an increase in risk, and not vice versa. Second, there is an uneven impact of regulatory pressure and market discipline on banks attitude towards risk and capital. Additionally, Islamic banks increased their capital as compared to conventional banks.

  20. MODELLING SOCIAL CAPITAL AND GROWTH

    OpenAIRE

    Yuan K. Chou

    2002-01-01

    This paper proposes three theoretical growth models incorporating social capital, based on varied expositions on the concept of social capital and the empirical evidence gathered to date. In these models, social capital impacts growth by assisting in the accumulation of human capital, by affecting financial development through its effects on collective trust and social norms, and by facilitating networking between firms that result in the creation and diffusion of business and technological i...

  1. Market Timing and Capital Structure

    OpenAIRE

    Jeffrey A. Wurgler; Baker, Malcolm P.

    2001-01-01

    It is well known that firms tend to raise equity when their market values are high relative to book and past market values. We document that the resulting effects on capital structure are very persistent. As a consequence, current capital structure is strongly related to past market valuations. The results are difficult to explain within traditional theories of capital structure and suggest that capital structure is the cumulative outcome of past attempts to time the equity market.

  2. Auditing and bank capital regulation

    OpenAIRE

    Edward Simpson Prescott

    2004-01-01

    Auditing is introduced into a model of bank capital regulation. Deterministic and stochastic auditing strategies are studied. Contrary to intuition, auditing of bank risk should be focused on the safest banks because they hold the least amount of capital. Risky banks, which hold more capital, need to be audited less. The importance of auditing by regulators and penalties for non-compliance are discussed in light of the Basel II capital regulation proposals. Emphasis is placed on the importanc...

  3. 76 FR 35351 - Capital Plans

    Science.gov (United States)

    2011-06-17

    ... on their capital adequacy and ability to continue to operate and remain credit intermediaries during... monitor and maintain their internal capital adequacy.\\2\\ \\1\\ The proposed amendments to Regulation Y would... capital adequacy that reflect a full understanding of their risks and ensure that they hold...

  4. Intellectual Capital: Comparison and Contrast.

    Science.gov (United States)

    Madsen, Susan R.

    2001-01-01

    Suggests that one of the most important keys for improving individual and organizational performance is in developing and strengthening intellectual capital (IC) and explores the similarities and differences between the concepts of intellectual capital, human capital, and knowledge management. Presents four IC characteristics and addresses the…

  5. Bank capital management : International evidence

    NARCIS (Netherlands)

    De Jonghe, O.G.; Öztekin, Ö.

    2015-01-01

    We examine the dynamic behavior of bank capital using a global sample of 64 countries during the 1994-2010 period. Banks achieve deleveraging through active capital management (equity growth) rather than asset liquidation. In contrast, they achieve leveraging through passive capital management (redu

  6. Working Paper on Social capital

    DEFF Research Database (Denmark)

    Lassen Hanan, Anne

    2013-01-01

    This paper outlines the major schools within social capital theory. Contemporary authors such as Coleman, Putnam and Bourdieu are elaborated on. The paper also presents a non-exhaustive review on studies of social capital. Furthermore, a criticial discussion on social capital is reviewed, before...

  7. Thin Capitalization Rules and Entrepreneurial Capital Structure Decisions

    Directory of Open Access Journals (Sweden)

    Alexandra Maßbaum

    2009-12-01

    Full Text Available Tax planners often choose debt over equity financing. As this has led to increased corporate debt financing, many countries have introduced thin capitalization rules to secure their tax revenues. In a general capital structure model we analyze if thin capitalization rules affect dividend and financing decisions, and whether they can partially explain why corporations receive both debt and equity capital. We model the Belgian, German and Italian rules as examples. We find that the so-called Miller equilibrium and definite financing effects depend significantly on the underlying tax system. Further, our results are useful for the treasury to decide what thin capitalization type to implement.

  8. Femoral neck radiography: effect of flexion on visualization

    Energy Technology Data Exchange (ETDEWEB)

    Garry, S.C. [Univ. of Alberta, Dept. of Radiology and Diagnostic Imaging, Walter C Mackenzie Health Sciences Centre, Edmonton, Alberta (Canada); Jhangri, G.S. [Univ. of Alberta, Dept. Public Health Sciences, Edmonton, Alberta (Canada); Lambert, R.G.W. [Univ. of Alberta, Dept.of Radiology and Diagnostic Imaging, Walter C Mackenzie Health Sciences Centre, Edmonton, Alberta (Canada)]. E-mail: rglamber@cha.ab.ca

    2005-06-15

    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{sup o} and flexion in 10{sup 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{sup o} and 20{sup 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 ({rho} < 0.05). Visualization of the femoral neck in the extended position progressively deteriorated from 15{sup o} internal rotation to 30{sup o} external rotation ({rho} <0.01). However, when 20{sup o} flexion was applied to bones in external rotation, visualization significantly improved at 15{sup o} ({rho} <0.05) and 30{sup o} ({rho} <0.01). Flexion of the externally rotated femur can bring the femoral neck into horizontal alignment, and a relatively small amount (20{sup 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)

  9. Structural and functional studies of bioobjects prepared from femoral heads

    International Nuclear Information System (INIS)

    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%

  10. Femoral component revision using extensively porous-coated cementless stem

    Institute of Scientific and Technical Information of China (English)

    WU Li-dong; XIONG Yan; YAN Shi-gui; YANG Quan-sen; DAI Xue-song

    2005-01-01

    Objective: To evaluate the clinical and radiographic results of extensively porous-coated femoral stem in revision of total hip arthroplasty (THA).Methods: From January 1999 to December 2003,fifteen hips of fifteen cases received revision of THA with extensively porous-coated femoral stem. There were six males and nine females. The average age was 66 years (ranging 58-82 years). The reason for the revision was aseptic loosening in 10 cases, septic loosening in 2, femoral shaft fracture around loose implant in 2, and femoral revision for malposition of the femoral component in 1. All the patients were clinically evaluated using Harris hip score and radiographically evaluated both preoperatively and postoperatively at regular follow-up intervals.Results: No patients were lost for follow-up. The average length of follow-up was 2.3 years (range, 1-5years). The average preoperative Harris hip score was 42points, which was improved to 89 points at latest follow-up.The latest follow-up showed that bone in-growth occurred in fourteen stems and solid fibrous fixation in one.Complications consisted of femoral shaft fracture in two cases (1 undisplaced distal femur fracture and 1 cortical perforation at the tip of the prosthesis), and postoperative dislocation in one. There was no mechanical failure of the stem in this study.Conclusions: Satisfactory results of short-term clinical and radiographic follow-up have been achieved in using extensively porous-coated femoral stem for revision of THA. It should be noticed that the straight, 203 mm stem should be used with caution in short people.

  11. 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.

  12. 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%.

  13. Radiological diagnosis of hip joint abnormalities in children

    OpenAIRE

    Mikhail Mikhailovich Kamosko; Mahmoud Stanislavovich Poznovich

    2015-01-01

    Abnormalities of the hip joint in children covers a wide range of diseases, including both congenital and acquired ones. Hip dysplasia, Legg-Calve-Perthes disease and juvenile slipped capital femoral epiphysis account for up to 25 % of all diseases of the musculoskeletal system in pediatric patients. Early diagnosis of these disorders and timely treatment are of paramount importance in the prevention of childhood disability.

  14. Radiological diagnosis of hip joint abnormalities in children

    Directory of Open Access Journals (Sweden)

    Михаил Михайлович Камоско

    2015-06-01

    Full Text Available Abnormalities of the hip joint in children covers a wide range of diseases, including both congenital and acquired ones. Hip dysplasia, Legg-Calve-Perthes disease and juvenile slipped capital femoral epiphysis account for up to 25 % of all diseases of the musculoskeletal system in pediatric patients. Early diagnosis of these disorders and timely treatment are of paramount importance in the prevention of childhood disability.

  15. Social Capital in Rural Denmark

    OpenAIRE

    Svendsen, G.L.; Svendsen, Gert Tinggaard

    1999-01-01

    What are the roots of social capital and how can it be measured and built? Social capital is considered as a new production factor which must be added to the conventional concepts of human and physical capital. Social capital is productive because it increases the level of trust in a society and allows more transactions to take place without third-party enforcement. Theory and lessons from empirical evidence lead to the general recommendation that any loss in social capital must be deducted f...

  16. Performance systems and social capital

    DEFF Research Database (Denmark)

    Rasmussen, Grane Mikael Gregaard; Edwards, Kasper

    2014-01-01

    Performance systems and social capital are considered mutually exclusive. Contemporary studies show that social capital is essential in generating performance improvement. This raises an important question: “How do performance systems and social capital correspond?” This study draws on findings...... from a study on implementation of a performance system in Danish construction. The results show causalities between implementing the performance system and the emergence of social capital in construction projects. Results indicate that performance systems and social capital is not mutually exclusive...

  17. Selection of intellectual capital management strategies

    OpenAIRE

    Shcherbachenko Viktoriia Oleksiivna

    2016-01-01

    This article deals with the selection of intellectual capital management strategy. The attention is paid to the structure of intellectual capital, which consists of human capital, customer capital, process capital, intellectual property, intangible assets. The algorithm of selection of intellectual capital management strategy was created by author.

  18. Managing the strategic capital cycle.

    Science.gov (United States)

    Kaufman, K

    1997-12-01

    A healthcare organization's financial strategy should be defined within the context of the capital cycle and provide for the management of three critical components that will ensure the expansion and renewal of capital capacity--the design and implementation of the financial plan, the design and implementation of an appropriate capital structure, and a means to strategically utilize capital and reinvest it in the organization. The capital cycle comprises two parts--strategic planning and implementation, and the development of the support infrastructure that includes financial planning, capital structure, and capital allocation. The financial plan positions an organization within an area of financial equilibrium and defines its organizational capabilities. The financial infrastructure gives integrity and momentum to the capital cycle. Capital structure addresses critical funding and financing questions and is best defined as the combination of debt and equity that funds the strategic plan. In regard to capital allocation, healthcare organizations should follow a corporate "best practices" approach for such areas as financial objectives and policies, project review, and the capital expenditures approval process.

  19. Ensayo sobre el Capital Social

    Directory of Open Access Journals (Sweden)

    Ramón Frediani

    2011-08-01

    Full Text Available En la teoría económica existen distintas definiciones de capital: capital físico, el capital en recursos naturales, el capital financiero, el capital en infraestructura económica, el capital en infraestructura social y el capital humano. Todos ellos son condiciones necesarias para que un país alcance el desarrollo económico y social y un alto estándar y calidad de vida de sus habitantes, pero no suficientes puesto que hace falta una categoría adicional de capital. En los últimos años ha surgido el análisis de una nueva categoría: el Capital Social. El concepto se ha convertido en uno de los temas más debatidos de las ciencias sociales y políticas. Se refiere a un elemento invisible, etéreo, menos tangible que el capital humano (conocimientos y/o habilidades de los individuos o el capital físico (bienes materiales, pero que resulta decisivo para la actividad productiva, la satisfacción de las necesidades personales y el desarrollo comunitario y de una sociedad toda.

  20. Leveraging organisational cultural capital

    Directory of Open Access Journals (Sweden)

    R Scheel

    2007-01-01

    Full Text Available Organisational culture discourse mandates a linear approach of diagnosis, measurement and gap analysis as standard practice in relation to most culture change initiatives. Therefore, a problem solving framework geared toward “fixing�? and/or realigning an organisation’s culture is usually prescribed. The traditional problem solving model seeks to identify gaps between current and desired organisational cultural states, inhibiting the discovery of an organisation’s unique values and strengths, namely its cultural capital. In pursuit of discovering and leveraging organisational cultural capital, a descriptive case study is used to show how an Appreciative Inquiry process can rejuvenate the spirit of an organisation as a system-wide inquiry mobilises a workforce toward a shared vision.

  1. Atypical femoral fractures and current management

    Directory of Open Access Journals (Sweden)

    Nianye Zheng

    2016-10-01

    Full Text Available With the rapid increase in patients receiving bisphosphonates (BPs for treating osteoporosis, one of the clinical complications associated with its long-term use is atypical femoral fractures (AFFs. Although the absolute risk for AFFs is low and it was a consensus that AFFs were acceptable compared with the amount of osteoporotic fractures BPs have prevented, epidemiological studies have proved that BPs had a strong association with AFFs and possibly more people were going to suffer from this adverse effect with wide prescriptions of this drug. In addition, AFFs seemed to have impaired ability to heal. Thus, to understand the mechanism(s behind AFFs is important and desirable for considering preventive measures. This article reviewed the clinical features of AFFs as well as potential underlining pathological characteristics, such as the decreased turnover rate caused by BPs that led to multiple-level alternations, e.g., changes not only at cellular and tissue levels, but also related to changes in bone micro- and macrostructure and organic/inorganic contents, leading to potentially compromised mechanical properties of cortical bone when exposed to prolonged BP therapy. Severely suppressed bone turnover may also be the underlying mechanism for impaired fracture healing in patients with AFFs. The rising concerns about the risk for AFFs in nonosteoporotic patients receiving high-dose BPs to treat cancers were also discussed. Detailed investigation will help develop potential targeted pharmacological treatments such as parathyroid hormone. In addition, potential innovative internal fixation implants were discussed with regard to dynamic and biological fixation for enhancing AFF repair.

  2. Capital Requirements and Banks' Leniency

    DEFF Research Database (Denmark)

    Dietrich, J. Kimball; Wihlborg, Clas

    2003-01-01

    We investigate the effect of changes in capital regulation on the strictness(leniency) of loan terms using a simple model of bank capital requirements andasset quality examinations. Banks offer different levels of `leniency' in the senseof willingness to offer automatic extensions of loans...... in the presence of temporarypayment difficulties of borrowers. Banks offering lenient (less strict) loan termsmust have higher initial levels of capital and charge higher loan rates. Whencapital requirements are increased, both strict and lenient banks hold higher levelsof initial capital and they raise loan...... rates. As capital requirements increase thedifference between initial capital levels and between interest rates of strict andlenient banks decrease. Thus, higher capital requirements in recessions tend toreduce the interest rate premium paid for leniency. If a recession is interpreted asan increase...

  3. Entrepreneurial Human Capital

    OpenAIRE

    Iversen, Jens; Malchow-Møller, Nikolaj; Sørensen, Anders

    2009-01-01

    We argue that formal schooling and wage-work experience are complementary types of human capital for entrepreneurs. Strong empirical support is found for this hypothesis as the interaction term between schooling and actual wage-work experience enters positively and significantly in a Mincer equation, whereas the effect of schooling in the absence of wage-work experience is insignificant. These results are extremely robust towards more flexible specifications, including fixed-effects estimatio...

  4. Managers and Market Capitalism

    OpenAIRE

    Rebecca Henderson; Karthik Ramanna

    2013-01-01

    In a capitalist system based on free markets, do managers have responsibilities to the system itself? If they do, should these responsibilities shape their behavior when they are engaging in the political process in an attempt to structure the institutions of capitalism? The prevailing view-perhaps most eloquently argued by Milton Friedman-is that the first duty of managers is to maximize shareholder value, and thus that they should take every opportunity (within the bounds of the law) to str...

  5. Social capital and education

    OpenAIRE

    Timur Natkhov

    2012-01-01

    Timur Natkhov, Ph.D. in Economics, Associate Professor in the Subdepartment of Institutional Economics, National Research University - Higher School of Economics, Moscow, Russian Federation. Email: The paper presents a brief evolution of studies on the relationship between education and social capital in different countries. A distinctive feature of these studies is their interdisciplinary nature, as they combine theories and methods of different social sciences.To ide...

  6. Investments in human capital

    OpenAIRE

    Milost, Franko; Novak, Matic

    2016-01-01

    Investments in human capital (employees) include investments in the direct assurance of working abilities, investments in health and well-being and investments in loyalty to the company. These investments are crucial for the long-term existence and development of a company, but their value is not disclosed on the assets side of the classical balance sheet. The most important argument given by the proponents of this approach is that the economic benefits stemming from such investments are unce...

  7. Capital cost estimate

    Science.gov (United States)

    1975-01-01

    The capital cost estimate for the nuclear process heat source (NPHS) plant was made by: (1) using costs from the current commercial HTGR for electricity production as a base for items that are essentially the same and (2) development of new estimates for modified or new equipment that is specifically for the process heat application. Results are given in tabular form and cover the total investment required for each process temperature studied.

  8. Imaging Findings in Symptomatic Patients with Femoral Diaphyseal Stress Injuries

    Energy Technology Data Exchange (ETDEWEB)

    Theodorou, S.J.; Theodorou, D.J.; Resnick, D. [Univ. of California, San Diego Medical Center, CA (United States). Dept. of Radiology

    2006-07-15

    Purpose: To assess the imaging findings seen in symptomatic patients with stress injuries of the femoral diaphysis. Material and Methods: Seven patients (5 F, 2 M, age range 16 to 56 years, mean 38 years) underwent imaging evaluation of the symptomatic lower extremity due to an insidious onset of thigh or groin pain unrelated to trauma. Imaging studies included radiography and magnetic resonance imaging (MRI) in seven patients, bone scintigraphy in five, and computed tomography (CT) in three. Results: Radiographs depicted three frank fractures in two patients, and revealed findings of stress injury in six patients. Available scintigraphic and CT findings were abnormal. On MR images, a solitary fracture was seen in two patients; two patients presented with bilateral stress fractures of the femoral diaphysis; and all seven patients had the imaging features of stress injury. Femoral diaphyseal stress fractures (n=6) appeared as linear regions of T1- and T2-weighted low signal intensity, surrounded by diffuse bone marrow edema. Three of the six frank fractures, with an evident fracture line, were longitudinal and parallel to the cortical surface. Conclusion: Femoral diaphyseal stress fractures are often inconspicuous with conventional radiography. MRI depicts the changes of stress injury in the femoral diaphysis, and is particularly useful in documenting the presence, morphology, and extent of fracture(s), information valuable for definitive diagnosis and appropriate management.

  9. Avascular necrosis of the femoral head in HIV infected patients

    Directory of Open Access Journals (Sweden)

    Marcos Almeida Matos

    2007-02-01

    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.

  10. Femoral neck radiography: effect of flexion on visualization

    International Nuclear Information System (INIS)

    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 15o and flexion in 10o 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 0o and 20o 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 30o external rotation (ρ o flexion was applied to bones in external rotation, visualization significantly improved at 15o (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)

  11. Analysis of Femoral Components of Cemented Total Hip- Arthroplasty

    CERN Document Server

    Singh, Shantanu

    2014-01-01

    In cemented Total Hip Arthroplasty (THA), material chosen for femoral stem and cross section of stem itself, proved to be critical parameters for, stress distribution in the femoral components, interfacial stresses and micro movements. Titanium alloy (Ti6Al4V), when used as a material for femoral stem, recorded large displacement as compared to Chromium alloy (CoCrMo) stems. This large displacement in case of Ti6Al4V caused the stem to bend inside the cement mantle, thus destroying it. Thus, CoCrMo proved to be a better in cemented THA. Failure in THA may occur at cement-stem or cement-bone interface, thus interfacial stresses and micro movements were analysed in the present study. Comparison between trapezium and circular cross section showed that, femoral stem with trapezium cross section underwent lesser amount of sliding and debonding, at both interfaces, as compared to circular cross section. Moreover, trapezium cross section also generated lower peak stresses in femoral stem and cortical femur. The pres...

  12. Descolamento da epífise proximal do rádio diagnosticado tardiamente: relato de caso e revisão da literatura Late diagnosis of proximal radial epiphysis dislocation: case report and literature review

    Directory of Open Access Journals (Sweden)

    William Dias Belangero

    2001-09-01

    Full Text Available Os autores apresentam um caso de descolamento traumático da epífise proximal do rádio, diagnosticado 5 meses após luxação posterior do cotovelo, em uma criança com 9 anos de idade. Foi realizado redução e fixação da epífise avascular na metáfise proximal do rádio e, após 24 meses de seguimento, esta epífise encontrava-se revascularizada e o cotovelo apresentava flexão de 0-130º, pronação de 80º e supinação de 30º.A case of traumatic dislocation of proximal radial epiphysis is reported, which was diagnosed 5 months after a posterior dislocation of the elbow in a 9 years old girl. Open reduction and fixation of the avascular epiphysis to the metaphysis was performed, and after 24 months follow-up the physis was vascularised and flexion ranged from 0-130°, pronation 80° and supination 30°.

  13. fuente de capital humano

    Directory of Open Access Journals (Sweden)

    Ligia Becerra

    2005-01-01

    Full Text Available El capital intelectual es una concepción novedosa, tipificada como un activo intangible que agrega valor a la empresa; está formado por tres componentes: el capital organizacional, el humano y el relacional. El capital humano está relacionado con el desarrollo y los conocimientos del individuo, que permite diferenciar a un profesional de otro. El objetivo de este trabajo es analizar la formación del Contador Público egresado de la Universidad de Los Andes (ULA de Trujillo, como fuente de capital humano para su desempeño profesional. Los datos se recolectaron aplicando un cuestionario a una muestra aleatoria de 47 de estos profesionales, empleando para el análisis y presentación de los resultados técnicas estadísticas. La investigación evidencia que la mayoría de los encuestados poseen un nivel de satisfacción de medio a bajo con su formación de pregrado, señalando como principales debilidades del Plan de Estudio las áreas tributaria y cambiaria, el manejo instrumental del inglés y el conocimiento de las normativas que rigen el sistema económico. La formación en algunas de estas áreas la han mejorado a través de otras actividades de capacitación. No obstante reconocen algunas fortalezas tales como: el aprendizaje y dominio de conceptos y Principios Contables de Aceptación General, las matemáticas y estadística, el manejo de la contabilidad computarizada y las habilidades para analizar e interpretar problemas contables. Se concluye que a pesar de las deficiencias, la realización de cursos de actualización, junto con las fortalezas en la formación de la carrera, ha contribuido a que el contador público egresado de la ULA de Trujillo constituya un capital humano con ventaja competitiva.

  14. Bilateral midshaft femoral fractures in an adolescent baseball player.

    Science.gov (United States)

    Ju, D G; Mogayzel, P J; Sponseller, P D; Familiari, F; McFarland, E G

    2016-07-01

    Bone disease, specifically low bone mineral density, is a common and undertreated complication that begins during childhood in patients with cystic fibrosis (CF). This case describes a male baseball player, aged 14years, with undiagnosed CF who sustained a left midshaft femoral fracture while running toward base; 8months later, he sustained a right midshaft femoral fracture under similar conditions. After the second fracture, further evaluation revealed low bone mineral density and CF. There is no previously published report of pathologic fractures occurring in the femoral shaft in an athlete with undiagnosed CF. Patients with CF have a higher fracture rate. Low-energy fractures of major bones in athletically active individuals should be viewed with suspicion for an underlying process. PMID:26927602

  15. Stress fracture of the femoral neck in a child (stress fracture)

    International Nuclear Information System (INIS)

    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.)

  16. Femoral neck trabecular patterns predict osteoporotic fractures

    International Nuclear Information System (INIS)

    In this paper we show that texture analysis of femoral neck trabecular patterns can be used to predict osteoporotic fractures. The study is based on a sample of 123 women aged 44-66 years with and without fractures. We analyzed trabecular patterns using the Co-occurrence Matrix texture analysis algorithm and compared the predictive utility of the textural data with densitometry. Logistic regression was used to estimate the predictive utility, exp(B), of clinical and textural data per standard deviation. Reproducibility was also demonstrated using paired films at 1-year intervals (CoV=4.5%). Bone mass estimated by DEXA measurements of the spine and hip were the most predictive of fractures giving a two-fold increase in fractures per s.d. bone mass loss (95% CI: 1.2-3.1, p<0.005). Age was also highly predictive with fracture risk increasing by 1.07-fold per year (95% CI: 1.01-1.14, p<0.02). Trabecular texture was found to give a lower, but significant, prediction of fracture of 1.5-fold per s.d. trabecular pattern loss (95% CI: 0.96-2.31, p<0.05). Combining age, weight, and trabecular texture increased the fracture prediction to 1.78-fold per s.d. (95% CI: 1.19-2.67). Combining trabecular texture with densitometry increased the predictive ability to 2.06-fold per s.d. (95% CI: 1.32-3.22) and combined with age and weight as well increased exp(B) to 2.1-fold per s.d. (95% CI: 1.32-3.35). This shows that osteoporotic trabecular texture changes can be ''measured.'' Moreover, the combination of age, weight, and trabecular texture is more predictive than either alone. We propose therefore that this trabecular texture analysis is both reproducible and clinically meaningful. The application of such methods could be used to improve the estimation of fracture risk in conjunction with other clinical data, or where densitometry data cannot be obtained (e.g., in retrospective studies)

  17. Capital Income Taxation and Tax Criteria in International Capital Markets

    OpenAIRE

    Hannu Piekkola

    1995-01-01

    The study analyses the capital income taxation of foreign-source income, where residence and source criteria are the two well-known tax criteria. The study presents a globally optimal tax rule which equalizes the shadow price of capital in the countries and which is assumed to be a weighted average of the return on savings and on investment, i.e. depending on the gross rate of return to the extent that capital contributes to the capital used, and on the net interest rate to the extent that ca...

  18. Parallel manipulator robot assisted femoral fracture reduction on traction table.

    Science.gov (United States)

    Lin, H; Wang, J Q; Han, W

    2013-01-01

    The principle of femoral shaft fracture reduction is to restore its pre-fractured limb length and mechanical axis. The current documented treatment method with traction table reduction does not conform to the quantitative alignment and reduction. There is also a great amount of X-Ray radiation exposure to both surgeon and patient during the procedure. For this reason, we introduced an innovated Parallel Manipulator Robot (PMR) application: A Femoral Shaft Fracture Reduction with Parallel Manipulator Robot on Traction Table. With this application, the quantitative control on fracture reduction and alignment can be achieved and the radiation exposure to both surgeons and patients can be greatly reduced. PMID:24110820

  19. 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.

  20. Avascular necrosis associated with nailing of femoral neck fracture

    International Nuclear Information System (INIS)

    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. SR85-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)

  1. Traumatic hip dislocation with associated femoral head fracture

    DEFF Research Database (Denmark)

    Dortaj, H; Emamifar, A

    2015-01-01

    Dislocation of the hip is a critical injury that results from high-energy trauma. This paper describes a case of posterior dislocation of the right hip in a 35-year-old woman with associated ipsilateral femoral head fracture. Initial treatment included reduction of the right hip through posterior...... approach and fixation of the femoral head fracture with three absorbable screws. After 15-month follow-up, a full range of motion has been achieved and there are no signs of avascular necrosis, hip instability, or limping. The authors describe their method of surgery....

  2. Modul femur prosthesis for major upper femoral bone defects

    International Nuclear Information System (INIS)

    The Koelner modul femur prosthesis MECROSET represents a device to be composed of standardised units. It allows the surgeon dealing with large bone defects of the upper femoral end to meet the special local requirements by building up the appropriate implant. This device may cope with bone losses of up to 22 cms, measured down from the tip of the major trochanter. Combination with ordinary cups is possible. Indications proven are upper femoral defects following disease, exchange of prosthesis and trauma. The ten patients thus provided did not show any complications during a 2-year period of observation. Long-term results are still to be awaited. (orig.)

  3. [Femoral head chondroblastoma and reconstruction with osteochondral allograft. Case report].

    Science.gov (United States)

    Orlando-Díaz, C; Guzmán-Vargas, R; Rincon-Cardozo, D F; Mantilla-León, N; Camacho-Casas, J A

    2014-01-01

    Femoral head chondroblastoma is an infrequent tumor, accounting for approximately 1-2% of benign bone tumors. It occurs more frequently in young male patients. It's most frequent locations include the proximal humerus, proximal femur, distal femur and proximal tibia. The femoral head is the third most frequent site of this tumor. There is no specific treatment for this entity; reported treatments range from acetabular osteotomies and osteochondral grafts, to vascularized fibular grafts, all of them with good results. However, this tumor is clinically unpredictable if left untreated. We report a case managed with osteochondral graft and followed-up for three years after the surgical procedure.

  4. Patellofemoral dysbalance due to femoral deformities - diagnostic, therapy and results

    Science.gov (United States)

    Dickschas, Jörg; Strecker, Wolf; Harrer, Jörg; Ferner, Felix

    2016-01-01

    Aims and Objectives: Anterior knee pain or patellofemoral instability are typical symptoms of patellofemoral dysbalance. Beside other reasons, this pathology can be caused by a femoral deformity. The two dimensions leading to this problems are torsional- and valgus deformities. This constellation often stays unrecognized. When diagnosed and analyzed, a femoral torsional or varization-osteotomy is the adequate treatment. Aim of this study was to show the diagnostic approach, the gold standard of therapy and the follow up results. Can patellofemoral stability be archived? Is the pain relief significant and how do clinical scores develop at the follow up? Materials and Methods: 33 femoral torsional osteotomies and 18 femoral varization osteotomies were included in this study, 5 of these were combined femoral varization and torsional corrections so that 46 knees are included in 41 patients, as 5 patients were operated on both legs. Major symptoms were patellofemoral dislocations in 28 cases and anterior knee pain in 26 cases. Beside clinical and radiographic evaluation full weight bearing long leg views and a torsional computertomography was always performed. Follow up examination was after 41 (6-113) months. Visual analog scala score, Japanese Knee Society Score, Tegner activity score and Lysholm score were taken before surgery and at the follow up. Results: Mechanical femorotibial valgus was on average 6,4° (5°-10°), femoral internal torsion was in average 40,9° (29°-66°; normal: 24°). Surgical treatment was performed with an arthroscopy followed by an acute femoral varization 7,2°(5°-10°) and / or external torsion osteotomy of 13.8° (5°-26°). Tegner activity score, Japanese knee society score and Lysholm score all significantly improved. Pain relief could be demonstrated as shown by a significant decrease of the VAS score. No further dislocation was reported during the follow up period. Conclusion: Valgus or torsional deformities of the femur frequently

  5. [Femoral head chondroblastoma and reconstruction with osteochondral allograft. Case report].

    Science.gov (United States)

    Orlando-Díaz, C; Guzmán-Vargas, R; Rincon-Cardozo, D F; Mantilla-León, N; Camacho-Casas, J A

    2014-01-01

    Femoral head chondroblastoma is an infrequent tumor, accounting for approximately 1-2% of benign bone tumors. It occurs more frequently in young male patients. It's most frequent locations include the proximal humerus, proximal femur, distal femur and proximal tibia. The femoral head is the third most frequent site of this tumor. There is no specific treatment for this entity; reported treatments range from acetabular osteotomies and osteochondral grafts, to vascularized fibular grafts, all of them with good results. However, this tumor is clinically unpredictable if left untreated. We report a case managed with osteochondral graft and followed-up for three years after the surgical procedure. PMID:26016291

  6. Treatment of Pediatric Open Femoral Fractures with External Fixator Versus Flexible Intramedullary Nails

    OpenAIRE

    Hossein Aslani; Ali Tabrizi; Ali Sadighi; Ahmad R Mirbolook

    2013-01-01

      Background: In children, inappropriate treatment of open femoral fractures may induce several complications. A few studies have compared the external fixator with flexible intramedullary nails in high-grade open femoral fractures of children. The present study aims at comparing results of these two treatment methods in open femoral fractures. Methods: In this descriptive analytical study, 27 patients with open femoral fractures, who were treated using either the external fixator (n=14) or T...

  7. Social Capital in Rural Denmark

    DEFF Research Database (Denmark)

    Svendsen, G.L.; Svendsen, Gert Tinggaard

    1999-01-01

    What are the roots of social capital and how can it be measured and built? Social capital is considered as a new production factor which must be added to the conventional concepts of human and physical capital. Social capital is productive because it increases the level of trust in a society...... and allows more transactions to take place without third-party enforcement. Theory and lessons from empirical evidence lead to the general recommendation that any loss in social capital must be deducted from the economic gain following market forces. For example, the voluntary organization of small......-sized groups in the Danish Cooperative Dairy Movement was eliminated due to economies of scale. It may be so that an alternative way of production, taking social capital into account, could have increased economic growth further....

  8. Capital social et anthroponomie

    OpenAIRE

    Peaucelle, Irina

    2002-01-01

    Dans ce texte j'analyse les relations entre la composante Santé du capital social et la reproduction élargie de l'économie. Il s'agit aussi de discuter des méthodes d'évaluation de santé des populations pour apprécier leur potentiel de travail. En s'appuyant sur des travaux en psychologie sociale, je cherche à appréhender les rythmes anthroponomiques de l'évolution économique.

  9. Contratos de capital humano

    OpenAIRE

    Oscar Alejandro Goyes Viteri

    2005-01-01

    Este documento busca dar a conocer el tema de la inversión en capital humano a través de la celebración de contratos atípicos y utilizando la fiducia mercantil y la titularización como vehículos financieros. Por medio de estos contratos un estudiante obtiene los recursos que requiere para financiar su educación superior, a cambio de entregar un porcentaje de sus ingresos después de su graduación a quien financió la operación.

  10. Capital social comunicativo

    Directory of Open Access Journals (Sweden)

    Darío Ángel

    2011-01-01

    Full Text Available En este artículo se buscan establecer las bases para una transformación del tradicional triángulo comunicativo emisor-mensaje-receptor, por un esquema que haga alusión a la dinámica social de la comunicación relacionada con lo público: actores-escenarios-sentidos. De esta forma, es posible conformar guías para la acción y encontrar en los actores ciudadanos de comunicación, la conformaciónde un capital social para la democracia.

  11. Knight Capital Americas LLC

    DEFF Research Database (Denmark)

    Austin, Robert D.; Meister, Darren

    2015-01-01

    $450 million dollars in less than an hour. Although it was ultimately saved from bankruptcy when it was acquired two days later, the terms of acquisition were very unfavourable to the company's shareholders. How did this happen? Could it have been prevented? What should the staff, the chief executive......It took 19 years to build Knight Capital Americas LLC into the largest market maker on the New York Stock Exchange, but on August 1, 2012, it took only 45 minutes for the firm to be wiped out by an information technology (IT) problem: a change in the company's software caused it to lose more than...

  12. Corruption and Social Capital

    DEFF Research Database (Denmark)

    Bjørnskov, Christian

    2003-01-01

    I examine the causal relation between social capiatl and corruption. A simple model illustrates potential mechanisms and yields testable implications, which I estimate in a sample of European countries. The estimated effect of social capital on corruption is found to be robust to the inclusion...... of a number of other variables and supplementing the sample with slightly older data from non-European countries. The evidence of the reverse causal direction is weak. I suggest that it is possible to build social capiatl through investing in education, interest in society and some level of income...

  13. Contratos de capital humano

    Directory of Open Access Journals (Sweden)

    Oscar Alejandro Goyes Viteri

    2005-01-01

    Full Text Available Este documento busca dar a conocer el tema de la inversión en capital humano a través de la celebración de contratos atípicos y utilizando la fiducia mercantil y la titularización como vehículos financieros. Por medio de estos contratos un estudiante obtiene los recursos que requiere para financiar su educación superior, a cambio de entregar un porcentaje de sus ingresos después de su graduación a quien financió la operación.

  14. Human Capital and Genetic Diversity

    OpenAIRE

    Sequeira, Tiago; Santos, Marcelo,; Ferreira-Lopes, Alexandra

    2013-01-01

    The determinants of human capital have been studied sparsely in the literature. Although there is a huge literature on the determinants of schooling linked with the quality of schooling, there are not many contributions that explore the deep determinants of investment in, quantity and quality of human capital. This paper investigates the relationship between human capital and the ancestral genetic diversity of populations. It highlights a strong hump-shaped relationship between genetic divers...

  15. Crises and human capital accumulation

    OpenAIRE

    Freddy Heylen; Lorenzo Pozzi

    2007-01-01

    This paper studies the effects of crises on human capital formation. Theoretically, a crisis undermines total factor productivity, which reduces the return to working and to accumulating physical capital. If the crisis is temporary, young agents will study now and work later. Human capital rises. To test our model we rely on inflation crises as our main empirical proxy. Using GMM panel procedures, our analysis for 86 countries in 1970-2000 confirms the positive effects of crises on human capi...

  16. Re-Thinking Social Capital

    Directory of Open Access Journals (Sweden)

    Zlatko Bukač

    2011-06-01

    Full Text Available The concept of social capital has been used very often in sociological researches over the last two decades. Measuring social capital in civil society, neighborhoods and educational systems is merely a part of its popular usage. Many sociologists tend to use the concept of social capital very freely and therefore expand the definition of social capital. The author’s personal experience indicates that there have been a great number of academic discussions, research planning and public speeches implementing the notion of social capital without taking a detailed consideration of what that concept truly entails. By overviewing the available literature on social capital, it is actually no wonder that both sociologists and the noted concept were in this confusing situation. As Field stated in his book Social Capital (Key Ideas, published in 2008, his work was “the first attempt to provide an extended introduction on increasingly influential concept of social capital” (Field 1. Quibria notes that even though there is a vast number of research conducted on social capital in many academic fields and with various approaches ‘the concept of social capital remains largely elusive’’(1. That obviously is not an obstacle because there is a constantly growing interest in social capital. A vast body of research concerning, measuring, and defining social capital is available today, which helps a researcher to analyze and compare all of the perspectives concerning social capital. This can be of great importance when researchers approach a somewhat new subject of research such as online communication and, more specifically, online games.

  17. Worker Remittances and Capital Flows

    OpenAIRE

    Buch, Claudia M; Kuckulenz, Anja; Le Manchec, Marie-Helene

    2002-01-01

    The debate on the risks and benefits of the globalisation of international capital markets has focused on the volume and the volatility of the main capital flows — foreign direct investment (FDI), portfolio investment, and foreign bank lending. Financial transfers in the form of worker remittances have received less attention in this context. This paper provides an analysis on the magnitude of remittances, their volatility, and their relationship to other capital flows. Moreover, we provide ...

  18. APPLICATIONS OF SOCIAL CAPITAL THEORY

    OpenAIRE

    Schmid, A. Allan; Robison, Lindon J.

    1995-01-01

    Experiments and studies were conducted to investigate the role of social capital. Social capital (relationship to others) is a productive asset which is a substitute for and complement to other productive assets. The productivity of social capital leads to the expectation that firms and individuals invest in relationships. Data were collected to answer the following questions: Does the identity (relationship) of trading partners affect selling and buying prices; the acceptance of catastrophic...

  19. Capitalism and African business cultures

    OpenAIRE

    Taylor, Scott D.

    2014-01-01

    Scholars and practitioners once commonly linked 'African culture' to a distinctive 'African capitalism', at odds with genuine capitalism and the demands of modern business. Yet contemporary African business cultures reveal that a capitalist ethos has taken hold within both state and society. The success and visibility of an emergent, and celebrated, class of African big business reveals that business and profit are culturally acceptable. Existing theories of African capitalism are ill-equippe...

  20. Coincident Indicators of Capital Flows

    OpenAIRE

    Malika Pant; Yanliang Miao

    2012-01-01

    Capital flows data from Balance of Payments statistics often lag 3-6 months, which renders timely surveillance and policy deliberation difficult. To address the tension, we propose two coincident composite indicators for capital flows that improve upon existing proxies. We find that the most widely used proxy, the capital tracker, often overpredicts net flows by 30 percent. We augment the tracker into a composite indicator by assigning to it a lesser but optimally estimated weight while incor...

  1. New Capital Estimates for China

    OpenAIRE

    Holz, Carsten A

    2005-01-01

    Data on physical capital are an indispensable part of economic growth and efficiency studies. In the case of China, fixed asset time series are usually derived either by aggregating gross fixed capital formation data over time, net of depreciation, or by correcting the limited official fixed asset data available. These procedures, to varying degrees, ignore that (i) gross fixed capital formation does not equal investment, (ii) investment does not equal the value of fixed assets newly created ...

  2. Factors that influence femoral neck length. Analysis of 1543 patients with advanced osteoarthritis of the hip

    NARCIS (Netherlands)

    Prins, Wybren; Kollen, Boudewijn J.; Ettema, Harmen B.; Verheyen, Cees C. P. M.

    2013-01-01

    Background and purpose: There is little known about the relationship between patient characteristic and the variance in geometrical properties of the femoral neck. The length of the femoral neck is relevant when considering a femoral neck preserving hip replacement. Based on surgical experience we h

  3. Significance of nitric oxide on the pathogenesis of steroid-induced femoral head necrosis

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    @@Steroid-induced femoral head necrosis is claimed to be an ischemic femoral head disease. But there is no discussion on the role of nitric oxide (NO) in the idiopathic disease. The concentration of NO indirectly in serum with steroid induced avascular necrosis of femoral head (ANFH) and in controls are studied in this article.

  4. Evaluation in femoral neck fracture scintimetry: modes of region of interest selection and influence on results

    International Nuclear Information System (INIS)

    Different sized ROIs within the femoral head and different modes of calculation were used in [/sup 99m/Tc]MDP scintimetry after femoral neck fracture. In preoperative scintimetry, correction for increased trochanteric uptake gave the best discrimination, whereas in postoperative scintimetry the direct ratio fractured/intact femoral head was superior. The change in ROI size had little influence

  5. Early detection by sup(99m)Tc-Sn-pyrophosphate scintigraphy of femoral head necrosis following medial femoral neck fractures

    International Nuclear Information System (INIS)

    A selected series of 24 patients with displaced medial femoral neck fracture, treated with closed reduction and osteosynthesis with cancellous bone screws (ASIF), were investigated. During an observation period of 6 to 26 months, serial hip joint scintigraphies were performed and compared with serial X-ray examinations. At the first scintigraphic examination performed on average 5-6 weeks after the fracture, two separate investigators found a decreased amount of activity or no activity in the femoral head of 10 and 8 patients, respectively. At the second scintigraphic examination performed on average 11.1 weeks after the fracture both investigators found no activity or a decreased amount of activity in 8 patients. This figure declined to 7 during the following period, because one patient with decreased activity was recorded as having normal activity 15 months after the fracture. These 7 patients all developed radiological signs of femoral head collapse on average 16.3 months after the fracture (range 5-26 months), whereas their scintigrams displayed decreased or absent tracer uptake on average 1.2 months after the fracture (P<0.01). None of the patients with initially normal or increased uptake later showed decreased or absent uptake during the study and none developed radiological collapse. It may be concluded that absent or decreased uptake of sup(99m)Tc-Sn-pyrophosphate in the femoral head following medial femoral neck fracture indicates femoral head necrosis and a high risk of late segmental collapse, whereas normal or increased uptake implying preserved blood supply means that late segmental collapse will probably never develop. (author)

  6. Social Capital and Economic Growth

    OpenAIRE

    Reino Hjerppe

    1998-01-01

    It is argued in order to explain large differences in the level of the development and the growth of economies cannot be adequately explained only by looking the traditional inputs of labour, capital and natural resources. The hypothesis is that also the role of social capital needs to be taken into account. First the concept of social capital is defined and discussed. Then the role of social capital in the development process is explained. Empirical test based on the cross-country data of 27...

  7. Human capital and career success

    DEFF Research Database (Denmark)

    Frederiksen, Anders; Kato, Takao

    evidence for the first time for the population of workers in an entire economy (as opposed to case study evidence) on the effects of the nature and scope of human capital on career success (measured by appointments to top management). First, we confirm the beneficial effect of acquiring general human...... capital formally through schooling for career success, as well as the gender gap in career success rates. Second, broadening the scope of human capital by experiencing various occupations (becoming a generalist) is found to be advantageous for career success. Third, initial human capital earned through...

  8. Exploring the social capital grid

    DEFF Research Database (Denmark)

    Svendsen, Gunnar Lind Haase; Patulny, Roger

    2007-01-01

    The purpose of this paper is to show that numerous studies have advanced social capital research over the past decade. Most studies have accepted the theoretical distinction between bonding and bridging social capital networks. Many, however, tend to agglomerate empirical research under the one...... catch-all social capital concept, rather than classifying it according to the bonding/bridging distinction. Furthermore, most studies make little distinction on the basis of methodology, between qualitative and quantitative approaches to investigating social capital. These omissions need to be addressed....

  9. Femoral Condyles Tangential Views: An Effective Method to Detect the Screw Penetration of Femoral Condyles After Retrograde Nailing

    Institute of Scientific and Technical Information of China (English)

    Zhan-Le Zheng; Xian Yu; Wei Chen; Yue-Ju Liu; Kun-Lun Yu; Tao Wu; Ying-Ze Zhang

    2015-01-01

    Background: Postoperative knee soft tissue irritation is a common complication after retrograde nail fixation of femoral fractures.Distal locking screw prominence is one of the causes for soft tissue irritation.This study aimed to determine whether the use of the femoral condyles tangential views improve the diagnostic accuracy compared with anteroposterior (A-P) view in detecting distal locking screw penetrations during retrograde femoral nailing.Methods: The angle between the sagittal plane and lateral aspect of the condyle and the angle between the sagittal plane and medial aspect of condyle were measured on computed tomography (CT) images.After the angles were measured and recorded, cadaveric femurs were used in a simulated surgical procedure.The retrograde femoral nail was inserted into the femur and placed distal locking screws, which were left 2, 4, and 6 mm proud of the medial and lateral condyles for each femur.A-P view, lateral condyle tangential view and medial condyle tangential view were obtained.All fluoroscopic images were recorded and sent to three observers blinded to the experimental procedure to determine whether screws penetrated the condyle cortex or not.Results: According to the results of CT scan, the lateral condyle view was 20.88 ± 0.98° and the medial condyle view was 40.46 ± 3.14°.In the A-P view, we detected 0% at 2 mm penetration, 16.7% (lateral condyle screw) and 25.0% (medial condyle screw) at 4 mm, and 41.7% (lateral condyle screw) and 58.3% (medial condyle screw) at 6 mm.In the lateral tangential view, we detected 91.7% at 2 mm penetration of the lateral condyle and 100% at 4 mm and 6 mm.In the medial tangential view, we detected 66.7% at 2 mm penetration of the medial condyle and 100% at 4 mm and 6 mm.The femoral condyle tangential views provided significant improvement in detecting screw penetrations at all lengths (2, 4, and 6 mm) compared with the A-P view (P < 0.05).Conclusions: The femoral condyles

  10. Femoral Condyles Tangential Views: An Effective Method to Detect the Screw Penetration of Femoral Condyles After Retrograde Nailing

    Directory of Open Access Journals (Sweden)

    Zhan-Le Zheng

    2015-01-01

    Full Text Available Background: Postoperative knee soft tissue irritation is a common complication after retrograde nail fixation of femoral fractures. Distal locking screw prominence is one of the causes for soft tissue irritation. This study aimed to determine whether the use of the femoral condyles tangential views improve the diagnostic accuracy compared with anteroposterior (A-P view in detecting distal locking screw penetrations during retrograde femoral nailing. Methods: The angle between the sagittal plane and lateral aspect of the condyle and the angle between the sagittal plane and medial aspect of condyle were measured on computed tomography (CT images. After the angles were measured and recorded, cadaveric femurs were used in a simulated surgical procedure. The retrograde femoral nail was inserted into the femur and placed distal locking screws, which were left 2, 4, and 6 mm proud of the medial and lateral condyles for each femur. A-P view, lateral condyle tangential view and medial condyle tangential view were obtained. All fluoroscopic images were recorded and sent to three observers blinded to the experimental procedure to determine whether screws penetrated the condyle cortex or not. Results: According to the results of CT scan, the lateral condyle view was 20.88 ± 0.98° and the medial condyle view was 40.46 ± 3.14°. In the A-P view, we detected 0% at 2 mm penetration, 16.7% (lateral condyle screw and 25.0% (medial condyle screw at 4 mm, and 41.7% (lateral condyle screw and 58.3% (medial condyle screw at 6 mm. In the lateral tangential view, we detected 91.7% at 2 mm penetration of the lateral condyle and 100% at 4 mm and 6 mm. In the medial tangential view, we detected 66.7% at 2 mm penetration of the medial condyle and 100% at 4 mm and 6 mm. The femoral condyle tangential views provided significant improvement in detecting screw penetrations at all lengths (2, 4, and 6 mm compared with the A-P view (P < 0.05. Conclusions: The femoral condyles

  11. Social Capital, Value, and Measure: Antonio Negri's Challenge to Capitalism.

    Science.gov (United States)

    Day, Ronald E.

    2002-01-01

    Considers one concept in knowledge management, that of social capital, focusing on the problem of measure and value in capitalism, specifically within the period and conditions of post-Fordist production. Discusses the work of Antonio Negri and suggests the importance of knowledge management as a symptom of a turn in political economy. (Author/LRW)

  12. Human capital and optimal positive taxation of capital income

    NARCIS (Netherlands)

    B. Jacobs (Bas); A.L. Bovenberg (Lans)

    2010-01-01

    textabstractThis paper analyzes optimal linear and non-linear taxes on capital and labor incomes in a life-cycle model of human capital investment, financial savings, and labor supply with heterogenous individuals. A dual income tax with a positive marginal tax rate on not only labor income but also

  13. Comprehensive wealth, intangible capital, and development

    OpenAIRE

    Ferreira, Susana; Hamilton, Kirk

    2010-01-01

    Existing wealth estimates show that in most countries intangible capital is the largest share of total wealth. Intangible capital is calculated as the difference between total wealth and tangible (produced and natural) capital. This paper uses new estimates of total wealth, natural capital, and physical capital for a panel of countries to shed light on the constituents of the intangible ca...

  14. 12 CFR 615.5200 - Capital planning.

    Science.gov (United States)

    2010-01-01

    ... POLICIES AND OPERATIONS, AND FUNDING OPERATIONS Capital Adequacy § 615.5200 Capital planning. (a) The Board...'s capital adequacy plan. Rather, the standards are intended to serve as minimum levels of capital... capital adequacy plan as a part of the financial plan required by § 618.8440 of this chapter. The...

  15. From Information Capitalism to Information Socialism

    Institute of Scientific and Technical Information of China (English)

    XiaoFeng

    2005-01-01

    Information technology and information capital are both neutral in character and can serve socialism as well as capitalism. As Karst pointed out, the information society is culturally and institutionally diverse. If in their transformation into social morphology information technology and capital may both end in socialism as well as capitalism, then what is the essential distinction between information capitalism and information socialism?

  16. Osteochondrosis in the lateral femoral condyles of a horse

    International Nuclear Information System (INIS)

    Osteochondrosis of the lateral femoral condyles was diagnosed radiographically in an 8-month-old, female Arabian horse, which had been presented with a hindlimb lameness. The diagnosis was confirmed by gross and microscopic pathology. The location of the lesions was considered unusual for osteochondrosis in the horse

  17. Quantifying lateral femoral condyle ellipticalness in chimpanzees, gorillas, and humans.

    Science.gov (United States)

    Sylvester, Adam D; Pfisterer, Theresa

    2012-11-01

    Articular surfaces of limb bones provide information for understanding animal locomotion because their size and shape are a reflection of habitual postures and movements. Here we present a novel method for quantifying the ellipticalness (i.e., departure from perfectly circular) of the lateral femoral condyle (LFC), applying this technique to hominid femora. Three-dimensional surface models were created for 49 Homo sapiens, 34 Pan troglodytes and 25 Gorilla gorilla femora. Software was developed that fit separate cylinders to each of the femoral condyles. These cylinders were constrained to have a single axis, but could have different radii. The cylinder fit to the LFC was allowed to assume an elliptical cross-section, while the cylinder fit to the medial condyle was constrained to remain circular. The shape of the elliptical cylinder (ratio of the major and minor axes of the ellipse) was recorded, and the orientation of the elliptical cylinder quantified as angles between the major axis of the ellipse and the anatomical and mechanical axes of the femur. Species were compared using analysis of variance and post hoc multiple comparisons tests. Confirming qualitative descriptions, human LFCs are more elliptical than those of chimpanzees and gorillas. Human femora exhibit a narrow range for the angle between the major axis of the elliptical cylinder and femoral axes. Conversely, the chimpanzee sample is bimodal for these angles, exhibiting two ellipse orientations, while Gorilla shows no preferred angle. Our results suggest that like modern human femora, chimpanzee femoral condyles have preferentially used regions. PMID:23042636

  18. Adductor Canal Block versus Femoral Nerve Block and Quadriceps Strength

    DEFF Research Database (Denmark)

    Jæger, Pia Therese; Nielsen, Zbigniew Jerzy Koscielniak; Henningsen, Lene Marianne;

    2013-01-01

    : The authors hypothesized that the adductor canal block (ACB), a predominant sensory blockade, reduces quadriceps strength compared with placebo (primary endpoint, area under the curve, 0.5-6 h), but less than the femoral nerve block (FNB; secondary endpoint). Other secondary endpoints were...

  19. Management of a femoral fracture complicated by clostridial myositis

    International Nuclear Information System (INIS)

    A clinical case of clostridial myositis secondary to a comminuted femoral fracture is described. This case is unusual because, despite the severe degree of obvious muscle necrosis and gas production, the dog had minimal signs of systemic toxicity. Union of the fracture was achieved but six months postoperatively muscular contracture had resulted in permanent stifle extension

  20. Radionuclide scintimetry for diagnosis of complications following femoral neck fracture

    International Nuclear Information System (INIS)

    A scintimetric study using Tc-99m MDP was made of 54 patients with delayed union, nonunion, or late segmental collapse of the femoral head, 4-92 months after femoral neck fracture. In radiographically verified collapse, the radionuclide uptake ratio between the femoral head on the fractured and on the intact side (HHR) was significantly higher than in fractures resulting in delayed union or nonunion. On the basis of scintimetric and radiographic findings, the patients with healing disturbances could be divided into three groups, characterized by the following features: (1) Satisfactory post-reduction position of the fracture without subsequent redisplacement and a high HHR, which as a rule turned out to be delayed union; (2) The same radiographic pattern but with a lower HHR, which in most cases resulted in nonunion; (3) Inadequate reduction or early redisplacement of the fracture with a high HHR, which resulted in nonunion. The fractional precision in discriminating between different types of disturbed fracture healing by means of skeletal scintimetry was 0.86 in this study. This non-invasive and technically simple method would therefore be a valuable complement to radiography in the assessment of healing, more than 4 months after fracture of the femoral neck. (author)

  1. Blood transfusion requirement in surgery for femoral artery aneurysms

    DEFF Research Database (Denmark)

    Levi, N; Schroeder, T V

    1997-01-01

    Audit of blood usage in various surgical specialities have shown that over-ordering of blood is widespread, causing unnecessary pressure on the transfusion facilities and giving growing concern over the expense of cross-matching blood. The aim of this study was to assess the blood transfusion req...... requirement in patients undergoing surgery for femoral artery aneurysms....

  2. Spontaneous Superficial Femoral Artery Pseudoaneurysm in Behcet's Disease

    Directory of Open Access Journals (Sweden)

    Murat Ugurlucan

    2014-01-01

    Full Text Available Behcet’s disease is an autoimmune multisystemic disorder on vasculitis base. Cardiovascular involvement is the most important predictor of morbidity and mortality. The treatment should be planned carefully for pathologies requiring interventions. In our report, we present a 45-year-old patient with spontaneous superficial femoral artery pseudoaneurysm, our treatment strategy, and circumstances we faced.

  3. The Femoral Hernia-a rare hernia and its treatment

    Institute of Scientific and Technical Information of China (English)

    Andreas Hoeferlin

    2009-01-01

    @@ Introduction Hernias age protrusions through weak areas of our abdominal wall.The most common hernia is Inguinal Hernia in men.A rather rare hernia is the Femoral Hernia,a protrusion into the femotal canal next to the blood vessels in our groin (Picl).

  4. Retained portion of latex glove during femoral nailing. Case report.

    Science.gov (United States)

    Sadat-Ali, M; Marwah, S; al-Habdan, I

    1996-11-01

    A case of retained glove during Kuntscher intramedullary nailing is described. An abscess around the glove could have lead to osteomyelitis. One need to be cautious feeling the top end of the nail while femoral nailing to avoid such a complication.

  5. Femoral nailing in adults : doctor and patient reported outcomes

    NARCIS (Netherlands)

    El Moumni, Mostafa

    2016-01-01

    The treatment of traumatic femoral shaft fractures using an unreamed nail is associated with good results. Both antegrade and retrograde unreamed nailing techniques result in high union rates and low rates of complications, such as non-union, deep infection and septic arthritis. These results are co

  6. MPR realignment increases accuracy when measuring femoral neck anteversion angle

    DEFF Research Database (Denmark)

    Olesen, Tommy Hemmert; Torfing, Trine; Overgaard, Søren

    2013-01-01

    To compare two methods of measuring femoral neck anteversion angle (FNA): A 2D method used at Odense University Hospital until 2010, and a method labeled 3D-OUH. The latter method makes corrections to compensate for errors introduced by the individual placement of patients in the CT scanner....

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

    DEFF Research Database (Denmark)

    Penny, J O; Ding, M; Varmarken, Jens-Erik;

    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...

  8. The accuracy of CT - determined femoral neck anteversion

    International Nuclear Information System (INIS)

    In order to establish the accuracy of CT determination of femoral neck anteversion, two models were constructed; one an idealized Plexiglas model and the other from a real femur. Experiments were carried out by pre-setting angles on the phantoms, and then determining these angles by CT. The results, which show a high degree of accuracy, are analyzed statistically. (orig.)

  9. Periprosthetic subtrochanteric femoral fracture in a megaprosthesis of the knee

    Institute of Scientific and Technical Information of China (English)

    Raju Vaishya; Ajay Pal Singh; Abhishek Vaish

    2013-01-01

    We report a rare case of periprosthetic posttraumatic fracture of subtrochanteric region of femur after a megaprosthesis of the knee,done for resistant nonunion of distal femur with secondary osteoarthrosis in a 51 years old man.Treatment with a locking femoral plate was able to achieve primary union with a good result.

  10. Femoral fractures : indications an[d] biomechanics of external fixation

    NARCIS (Netherlands)

    A.H. Broekhuizen (Tom); B. van Linge

    1988-01-01

    textabstractInternal fixation can be carried out in various ways. For femoral shaft fractures, an (interlocking) nail is becoming increasingly popular, instead of open realignment of the fracture. External fixation, which has become a generally accepted method of treating fractures of the lower leg,

  11. Blood flow and microdialysis in the human femoral head

    DEFF Research Database (Denmark)

    Bøgehøj, Morten; Emmeluth, Claus; Overgaard, Søren

    2007-01-01

    BACKGROUND: If it would be possible to detect lack of flow and/or the development of ischemia in bone, we might have a way of predicting whether a broken bone will heal. We established microdialysis (MD) and laser Doppler (LD) flow measurement in the human femoral head in order to be able to detect...

  12. Isolated femoral hypoplasia: an intrauterine differential diagnosis to campomelia

    Energy Technology Data Exchange (ETDEWEB)

    Koerber, Friederike; Benz-Bohm, Gabriele [University of Cologne, Department of Paediatric Radiology, Cologne (Germany); Schoenau, Eckard [University of Cologne, Department of Paediatrics, Cologne (Germany); Horwitz, A.Eldad [Klinikum Krefeld, Department of Paediatric Radiology, Krefeld (Germany)

    2005-06-01

    The isolated form of femoral bowing is an important differential diagnosis of campomelia. Therefore, knowledge of isolated anomalies is fundamental for prenatal diagnosis, especially for the differential diagnosis from severe syndromes. Four cases are presented to discuss the differential diagnosis of femoral bowing including a review of the literature. We report four newborn babies with unilateral bowing and shortening of the femur. Three had no further anomaly; one child had additional abnormalities due to coumarin embryopathy. The radiological findings were shortened femora with bowing and varus deformity and cortical thickening on the concave side. All other parts showed normal bone structure. The aetiology of femoral bowing is unknown. Early damage of the cartilaginous model followed by remodelling with thickening on the concave side of the bone similar to the healing of malaligned fractures is suspected. The isolated form of femoral bowing without any other anomalies has to be differentiated from complex and more often severe congenital syndromes such as campomelia. Postpartum radiological examination should be reduced to a single exposure of the affected limb and follow-up should be done by clinical examination. (orig.)

  13. Performance of CF/PA12 composite femoral stems.

    Science.gov (United States)

    Campbell, Melissa; Bureau, Martin N; Yahia, L'Hocine

    2008-02-01

    This study presents the microstructural and mechanical behavior of the CF/PA12 composite material developed as well as its biomechanical performance when used for the fabrication of femoral stems. The static tests were performed to evaluate the compressive and flexural modulus as well as the ultimate compressive and bending strength. It was found that CF/PA12 composite had bone-matching properties in the same order of magnitude as cortical bone in the femur. Density and void content measurements were also done to assess the consolidation quality. Dynamic fatigue testing was conducted on both CF/PA12 cylinders and femoral stems to evaluate the long term durability and mechanical reliability of the composite. Compression-compression cyclic loading was used at a frequency of 6 Hz with loads varying between 17 kN and 22 kN for the composite cylinders while a frequency of 10 Hz and load of 2300 N was employed for the femoral stems. Results indicate that the fatigue performance of CF/PA12 composite surpasses by far the required fatigue performance for total hip prosthesis (THP) stems. The overall performance of the CF/PA12 femoral stems confirms that this composite is an excellent candidate material for orthopedic applications such as THP stems. PMID:17619978

  14. Expiration induced femoral flow in neonatal coarctation of aorta.

    OpenAIRE

    McNicholl, B.; Kennedy, J. D.

    1983-01-01

    In a 3 day old infant with coarctation of the aorta a loud Doppler signal synchronous with expiration was present for some hours in the femoral vessels, with only barely audible signals synchronous with cardiac systole. It is suggested that in the presence of severe aortic constriction and temporary ductal closure, blood was pumped through the infradiaphragmatic arteries by increased intrathoracic expiratory pressure.

  15. Application of Epiphysis Retained Limb Salvage in Knee Osteosarcoma in Children and Adolescent%保留骨骺保肢术在儿童及青少年膝关节骨肉瘤中的应用

    Institute of Scientific and Technical Information of China (English)

    姜源涛; 朱立娟; 姜源波; 焦建宝

    2014-01-01

    目的:探讨保留骨骺保肢术在儿童及青少年膝关节骨肉瘤中的应用价值。方法:选择49例患者,随机分为两组,观察组24例实施保留骨骺保肢术,非保留组25例实施切除骨骺结合同种异体半关节移植术,比较两组手术时间、术中出血和双下肢长度差距,并对所有患者随访1年,观察组其复发情况和生存情况。结果:保留组手术时间显著短于非保留组(P0.05)。结论:保留骨骺的保肢手术对提高手术安全性,减少术后肢体不等长等不良反应效果显著。%To explore the application of epiphysis retained limb salvage in the knee osteosarcoma with children and adolescent.Methods:49 cases were randomly divided into two groups,the retention group (24 cases)were used implementation of epiphysis limb salvage surgery,unretention group(25 cases)were used implementation of excision epiphysis with allogeneic bone transplantation,then the operation time,bleeding during operation and limb length gap were compared between two groups,and all patients were followed up for 1 years,recurrence and survival were compared also.Results:The retention group operation time was shorter than unretention group(P0.05).Conclusion:Epiphyseal preservation can improve the operation safety and reduce the effect of limb length inequality and other adverse reactions after operation.

  16. Mechanical properties of femoral trabecular bone in dogs

    Directory of Open Access Journals (Sweden)

    Nolte Ingo

    2005-03-01

    Full Text Available Abstract Background Studying mechanical properties of canine trabecular bone is important for a better understanding of fracture mechanics or bone disorders and is also needed for numerical simulation of canine femora. No detailed data about elastic moduli and degrees of anisotropy of canine femoral trabecular bone has been published so far, hence the purpose of this study was to measure the elastic modulus of trabecular bone in canine femoral heads by ultrasound testing and to assess whether assuming isotropy of the cancellous bone in femoral heads in dogs is a valid simplification. Methods From 8 euthanized dogs, both femora were obtained and cubic specimens were cut from the centre of the femoral head which were oriented along the main pressure and tension trajectories. The specimens were tested using a 100 MHz ultrasound transducer in all three orthogonal directions. The directional elastic moduli of trabecular bone tissue and degrees of anisotropy were calculated. Results The elastic modulus along principal bone trajectories was found to be 11.2 GPa ± 0.4, 10.5 ± 2.1 GPa and 10.5 ± 1.8 GPa, respectively. The mean density of the specimens was 1.40 ± 0.09 g/cm3. The degrees of anisotropy revealed a significant inverse relationship with specimen densities. No significant differences were found between the elastic moduli in x, y and z directions, suggesting an effective isotropy of trabecular bone tissue in canine femoral heads. Discussion This study presents detailed data about elastic moduli of trabecular bone tissue obtained from canine femoral heads. Limitations of the study are the relatively small number of animals investigated and the measurement of whole specimen densities instead of trabecular bone densities which might lead to an underestimation of Young's moduli. Publications on elastic moduli of trabecular bone tissue present results that are similar to our data. Conclusion This study provides data about directional elastic

  17. Study of the anatomical position of the femoral nerve by magnetic resonance imaging in patients with fractured neck of femur: relevance to femoral nerve block.

    LENUS (Irish Health Repository)

    Mehmood, Shehzad

    2012-01-31

    STUDY OBJECTIVE: To determine the anatomical location of the femoral nerve in patients who have sustained fracture of the neck of femur, and its relevance to femoral nerve block technique. DESIGN: Prospective, observational clinical study. SETTING: Orthopedic and Radiology departments of a regional hospital. SUBJECTS: 10 consecutive adult ASA physical status II and III patients (mean age, 78.5 yrs) and 4 adult healthy volunteers. INTERVENTIONS: A T1 magnetic resonance imaging scan was performed of both upper thighs in patients and healthy volunteers successfully. MEASUREMENTS: The distance (mm) between the midpoint of the femoral artery and the midpoint of the femoral nerve, and the distance of the femoral nerve from the skin was measured at the mid-inguinal ligament, the pubic tubercle, and at the mid-inguinal crease. Data are shown as means (SD). Differences between both sides were compared using paired Student\\'s t-tests. P < 0.05 was significant. MAIN RESULTS: In patients the mean distance (mm) between the midpoint of the femoral nerve from the midpoint of femoral artery at the mid-inguinal crease on the fractured and non-fractured sides was 10.7 and 11.0, respectively (P = 0.87). The mean distance (mm) between the midpoint of the femoral nerve from the midpoint of the femoral artery at the mid-inguinal ligament on the fractured and non-fractured sides was 9.64 and 12.5, respectively (P = 0.03). The mean distance (mm) between the midpoint of the femoral nerve from the midpoint of the femoral artery at the pubic tubercle on the fractured and non-fractured sides was 8.74 and 10.49, respectively (P = 0.18). CONCLUSIONS: Blockade of the femoral nerve may be easier to perform at the mid-inguinal crease in patients with fractured neck of femur.

  18. Radiographic and functional results of osteosynthesis using the proximal femoral nail antirotation (PFNA) in the treatment of unstable intertrochanteric femoral fractures

    OpenAIRE

    Sahin, Suner; Erturer, Erden; Ozturk, Irfan; Toker, Serdar; Seckin, Faik; Akman, Senol

    2004-01-01

    Objectives: We evaluated the radiographic and functional results of the proximal femoral nail antirotation (PFNA) system in patients with unstable intertrochanteric femoral fractures. Methods: The study included 45 patients (25 women, 20 men; mean age 72 years; range 27 to 97 years) who underwent osteosynthesis using the PFNA for unstable intertrochanteric femoral fractures. The fractures were in the right hip in 25 patients, and in the left hip in 20 patients. The fractures were classifie...

  19. STUDY ON NECK SHAFT ANGLE AND FEMORAL LENGTH OF SOUTH INDIAN FEMURS

    OpenAIRE

    Shakil Mohamad Khan; Shaik Hussain Saheb

    2014-01-01

    Back ground: Femoral nek anteversion describes the angle subtended by the femoral neck with reference to the transcondylar plane of the distal end of the femur and is usually 15° to 45°. This along with the neck shaft angle, hip axis length, femoral neck width influence the risk of femoral neck fracture. Femoral neck anteversion angle has to be taken into consideration when reduction and fixation is selected as a method of treatment. Objectives: The objectives of present study to find out ...

  20. Pentosan reduces osteonecrosis of femoral head in SHRSP.

    Science.gov (United States)

    Miyata, Noriaki; Kumagai, Kenji; Osaki, Makoto; Murata, Masakazu; Tomita, Masato; Hozumi, Akira; Nozaki, Yoshihiro; Niwa, Masami

    2010-01-01

    Increased oxidative stress is considered one of the main causes of steroid-induced osteonecrosis of the femoral head (ONFH). The aim of this study was to evaluate the effects of a steroid hormone and pentosan polysulfate sodium (pentosan), a heparin analog, in stroke-prone spontaneously hypertensive rats (SHRSP) as a model of ONFH. One hundred twenty-three 13-week-old male SHRSP/Izm rats were divided into four groups: a control group (group C), pentosan-administered group (group P), steroid-administered group (group S), and group administered pentosan plus steroid (group PS). Methylprednisolone acetate, as the steroid hormone, at a dose of 4 mg (15 mg/kg) was administered at 15 weeks of age. Pentosan at a dose of 3 mg/day/kg was continuously administered intraperitoneally from 13 weeks of age for 4 weeks. Rats were sacrificed at 17 weeks of age, and heart blood and both femora were collected. Triglyceride levels were significantly lower in group PS than in group S, indicating that pentosan improves lipid metabolism. The incidence of histologic ONFH was significantly lower in group P, at 14.8% (10/71 femoral heads), than in group C, at 30.4% (17/56 femoral heads), and significantly lower in group PS, at 40.8% (29/71 femoral heads), than in group S, at 91.3% (42/46 femoral heads), indicating that pentosan markedly inhibits ONFH. Immunohistochemical staining for oxidative stress showed that the stainability was significantly lower in group PS than in group S. Pentosan seems to reduce the incidence of ONFH in SHRSP by improving lipid metabolism and decreasing oxidative stress.

  1. Analysis of Femoral Components of Cemented Total Hip Arthroplasty

    Science.gov (United States)

    Singh, Shantanu; Harsha, A. P.

    2015-10-01

    There have been continuous on-going revisions in design of prosthesis in Total Hip Arthroplasty (THA) to improve the endurance of hip replacement. In the present work, Finite Element Analysis was performed on cemented THA with CoCrMo trapezoidal, CoCrMo circular, Ti6Al4V trapezoidal and Ti6Al4V circular stem. It was observed that cross section and material of femoral stem proved to be critical parameters for stress distribution in femoral components, distribution of interfacial stress and micro movements. In the first part of analysis, designs were investigated for micro movements and stress developed, for different stem materials. Later part of the analysis focused on investigations with respect to different stem cross sections. Femoral stem made of Titanium alloy (Ti6Al4V) resulted in larger debonding of stem at cement-stem interface and increased stress within the cement mantle in contrast to chromium alloy (CoCrMo) stem. Thus, CoCrMo proved to be a better choice for cemented THA. Comparison between CoCrMo femoral stem of trapezium and circular cross section showed that trapezoidal stem experiences lesser sliding and debonding at interfaces than circular cross section stem. Also, trapezium cross section generated lower peak stress in femoral stem and cortical femur. In present study, femur head with diameter of 36 mm was considered for the analysis in order to avoid dislocation of the stem. Also, metallic femur head was coupled with cross linked polyethylene liner as it experiences negligible wear compared to conventional polyethylene liner and unlike metallic liner it is non carcinogenic.

  2. Current concepts on osteonecrosis of the femoral head.

    Science.gov (United States)

    Moya-Angeler, Joaquin; Gianakos, Arianna L; Villa, Jordan C; Ni, Amelia; Lane, Joseph M

    2015-09-18

    It is estimated that 20000 to 30000 new patients are diagnosed with osteonecrosis annually accounting for approximately 10% of the 250000 total hip arthroplasties done annually in the United States. The lack of level 1 evidence in the literature makes it difficult to identify optimal treatment protocols to manage patients with pre-collapse avascular necrosis of the femoral head, and early intervention prior to collapse is critical to successful outcomes in joint preserving procedures. There have been a variety of traumatic and atraumatic factors that have been identified as risk factors for osteonecrosis, but the etiology and pathogenesis still remains unclear. Current osteonecrosis diagnosis is dependent upon plain anteroposterior and frog-leg lateral radiographs of the hip, followed by magnetic resonance imaging (MRI). Generally, the first radiographic changes seen by radiograph will be cystic and sclerotic changes in the femoral head. Although the diagnosis may be made by radiograph, plain radiographs are generally insufficient for early diagnosis, therefore MRI is considered the most accurate benchmark. Treatment options include pharmacologic agents such as bisphosphonates and statins, biophysical treatments, as well as joint-preserving and joint-replacing surgeries. the surgical treatment of osteonecrosis of the femoral head can be divided into two major branches: femoral head sparing procedures (FHSP) and femoral head replacement procedures (FHRP). In general, FHSP are indicated at pre-collapse stages with minimal symptoms whereas FHRP are preferred at post-collapse symptomatic stages. It is difficult to know whether any treatment modality changes the natural history of core decompression since the true natural history of core decompression has not been delineated. PMID:26396935

  3. Successful Return to Sport Following Distal Femoral Varus Osteotomy

    Science.gov (United States)

    Voleti, Pramod Babu; Degen, Ryan; Tetreault, Danielle; Krych, Aaron John; Williams, Riley J.

    2016-01-01

    Objectives: Distal femoral varus osteotomy is an effective treatment for unloading valgus knee malalignment; however, there is limited evidence on the ability for patients to return to athletics following this procedure. The purpose of this study is to report the functional outcomes and return to sport for athletic patients that underwent distal femoral varus osteotomy. Methods: A consecutive series of athletic patients that had undergone distal femoral varus osteotomy for symptomatic lateral compartment overload and valgus knee malalignment were prospectively reviewed. All patients had a minimum of 2-year follow-up. Radiographs were assessed to determine pre-operative and post-operative alignment. Details regarding sport of interest, ability to return to sport, and timing of return were obtained from the patients. Prospective institutional registries were utilized to collect pre-operative and post-operative Marx Activity Scale and International Knee Documentation Committee Subjective Knee Evaluation Form (IKDC) scores; these values were compared using paired t-tests with p soccer, 2 softball, 2 running, 1 football, 1 basketball, 1 ice hockey, 1 volleyball, 1 rowing) at a mean of 11 months (range: 9-13). Furthermore, all 13 patients demonstrated an improvement in both Marx Activity Scale and IKDC scores after surgery. The mean improvement in Marx Activity Scale was 7 (mean pre-op: 4, mean post-op: 11, p < 0.01), and the mean improvement in IKDC score was 36 (mean pre-op: 53, mean post-op: 89, p < 0.01). Conclusion: Valgus knee malalignment results in overload of the lateral compartment and can severely limit one’s ability to participate in athletic activities. Correction of valgus knee malalignment through distal femoral varus osteotomy - either medial closing wedge or lateral opening wedge - can reliably result in improvement in function and return to sport, provided that concomitant chondral, meniscal, and ligamentous pathology is addressed. Therefore, distal

  4. 75 FR 6151 - Minimum Capital

    Science.gov (United States)

    2010-02-08

    ... Cease and Desist Order, as amended. See 74 FR 5597 (January 30, 2009). As a result, the definition of... AGENCY 12 CFR Part 1225 RIN 2590-AA01 Minimum Capital AGENCY: Federal Housing Finance Agency. ACTION... Soundness Act that provides for a temporary increase in the minimum capital level for entities regulated...

  5. San Diego's Capital Planning Process

    Science.gov (United States)

    Lytton, Michael

    2009-01-01

    This article describes San Diego's capital planning process. As part of its capital planning process, the San Diego Unified School District has developed a systematic analysis of functional quality at each of its school sites. The advantage of this approach is that it seeks to develop and apply quantifiable metrics and standards for the more…

  6. A Capital Adequacy Buffer Model

    NARCIS (Netherlands)

    D.E. Allen (David); M.J. McAleer (Michael); R.J. Powell (Robert); A.K. Singh (Abhay)

    2013-01-01

    markdownabstract__Abstract__ In this paper, we develop a new capital adequacy buffer model (CABM) which is sensitive to dynamic economic circumstances. The model, which measures additional bank capital required to compensate for fluctuating credit risk, is a novel combination of the Merton structur

  7. Schools, Social Capital and Space

    Science.gov (United States)

    Allan, Julie; Catts, Ralph

    2014-01-01

    This paper reports on the significance of social capital in relation to education, exploring its relevance to teachers and other professionals as well as among young people. It draws on aspects of five case studies undertaken by the Schools and Social Capital Network, within the Applied Educational Research Scheme in Scotland. These case studies…

  8. Venture Capital and Innovation Strategies

    NARCIS (Netherlands)

    Da Rin, M.; Penas, M.F.

    2015-01-01

    Venture capital is a specialized form of financial intermediation that often provides funding for costly technological innovation. Venture capital firms need to exit portfolio companies within about five years from the investment to generate returns for institutional investors. This paper is the fir

  9. Universities Venture into Venture Capitalism.

    Science.gov (United States)

    Desruisseaux, Paul

    2000-01-01

    Reports that some universities are starting their own venture-capital funds to develop campus companies, or are investing endowment funds with established venture-capital firms inclined to finance potential spinoffs from campus research. Examples cited are from the University of Alabama, Vanderbilt University (Tennessee), University of…

  10. Capital loss in China's agriculture

    Institute of Scientific and Technical Information of China (English)

    Cheng Peng

    2004-01-01

    China's agriculture has contributed a lot to industrialization but it has suffered a long-run and severe capital loss.This paper provides an estimation model of capital loss in agriculture and gives some explanation in marginal approach.With an eye to a balanced and sustainable economy development, it is high time for government to do something for it.

  11. Social Capital and Savings Behavior

    DEFF Research Database (Denmark)

    Newman, Carol; Tarp, Finn; Khai, Luu Duc

    In this paper, we analyze household savings in rural Vietnam paying particular attention to the factors that determine the proportion of savings held as formal deposits. Our aim is to explore the extent to which social capital can play a role in promoting formal savings behavior. Social capital...

  12. 12 CFR 565.4 - Capital measures and capital category definitions.

    Science.gov (United States)

    2010-01-01

    ... for any rating category (other than in a rating category specifically addressing capital adequacy... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Capital measures and capital category... PROMPT CORRECTIVE ACTION § 565.4 Capital measures and capital category definitions. (a) Capital...

  13. Culture as Capital

    DEFF Research Database (Denmark)

    Kacunko, Slavko

    A collection of essays 2011-2014 By following, and reproducing, the cultural turn, the rhetoric of cultural mix and hybridism is disseminated today primarily in its crossing of trade barriers. Cultures reduced to their exchange value function as capital - an accumulative, speculative and...... essays, Slavko Kacunko discusses the process art by crossing the disciplines of art history and comparative media-, visual- and -cultural studies. As a first approximation, several historiographical remarks on closed-circuit video installations underline their importance as a core category of process art....... In the second part, the problems of process art, seen as a threshold of art history, are further examined in another retroanalytical step, in which concepts and objects related to `mirror', `frame' and `immediacy' are analyzed as the triple delimitation of visual culture studies. In the third part, previously...

  14. A successful capital treadmill

    International Nuclear Information System (INIS)

    A summary of the operating economics of the Winter Cummings Sand Pool, a horizontal well development project with a sustained rate of development, was presented. A total of 58 horizontal wells have been drilled over a time span of seven years. The production performance of the first pilot wells indicated that development of the pool by horizontal wells could be economically viable. Since its inception the Winter field development was considered to have become a capital treadmill with an incremental rate of return on the incremental investment of 240 percent (a 24 million dollar net operating cash flow for a 10 million dollar investment). Current development status and production forecasts were also discussed. 21 figs

  15. Governing Global Capital

    DEFF Research Database (Denmark)

    Harrington, Brooke

    How do professions affect the configuration of political economies worldwide? This study addresses the question through interviews with members of a new transnational profession - wealth management - whose innovations are reshaping the balance of power in global finance. Wealth managers specialize...... in helping elites avoid taxes and other forms of regulation. The study documents how the means through which they achieve this objective - shifting billions in private capital wealth between Asia, Africa, India and Europe - and how this affects the balance of regional economic power. Drawing from...... and international policy-making bodies to advance the interests of the profession and its wealthy clients; and 3) by writing the fiscal legislation of some jurisdictions. Through these mechanisms, the profession has reconfigured political and economic power trans-nationally, shifting the world’s financial center...

  16. 股骨头软骨母细胞瘤的诊断与治疗%Diagnosis and treatment of chondroblastoma of the femoral head

    Institute of Scientific and Technical Information of China (English)

    李远; 邓志平; 杨发军; 王涛; 牛晓辉

    2009-01-01

    diagnoses were confirmed by pathological examination. All the patients underwent surgery through Smith-Peterson approach. During the operatin, The tumor tissue was thoroughly curetted via fovea of femoral head. Bone grafting was performed in all patients, including autogenous bone grafts in 7 cases , allografts in 5 cases and the mixture of autogenous and allografts in 1 case. Results All the patients were followed up. The median time was 26 months (range, 6-84 months). There was no local recurrence in this group .No operative complications were found during follow-up. One patient who underwent autogenous bone graft had suffered femoral head necrosis after partial weight bearing 2 months after operation.The further intervention included femoral head resection and total hip arthroplasty 6 months after operation in this patient. The remaining patients presented with good function. The mean Harris Score was 89 (range, 69-98 ) after surgery, 21 points increasing from preoperative scores. The mean healing time was 5.3 months, 6.8 months, and 4 months in patents received autogenous bone grafts, allografts and the mixture of autogenous and allografts, respectvely. Conclusion Chondroblastoma of the femoral head, which is uncommon has its specific clinical and radiological characteristics. The curettage can been carried out via fovea of femoral head followed by bone grafting through anterior Smith-Peterson approach. This procedure proved to be a useful surgical approach for the treatment of chodroblastoma in the epiphysis of the femoral head. Weight bearing must be avoided before bone healing. Hip joint exercise without weight bearing can improve the outcome.

  17. Social capital and localised learning

    DEFF Research Database (Denmark)

    Lorenzen, Mark

    2007-01-01

      This conceptual paper analyses why social capital is important for learning and economic development, how it is created and its geography. It argues that with the rise of globalisation and learning-based competition, social capital is becoming valuable because it organises markets, lowering...... business firms' costs of co-ordinating and allowing them flexibly to connect and reconnect. The paper defines social capital as a matrix of various social relations, combined with particular normative and cognitive social institutions that facilitate co-operation and reciprocity, and suggests that social...... capital is formed at spatial scales lower than the national or international, because the density of matrices of social relations increases with proximity. The paper also offers a discussion of how national and regional policies may be suited for promoting social capital....

  18. Individual social capital and survival

    DEFF Research Database (Denmark)

    Ejlskov, Linda; Mortensen, Rikke N; Overgaard, Charlotte;

    2014-01-01

    BACKGROUND: The concept of social capital has received increasing attention as a determinant of population survival, but its significance is uncertain. We examined the importance of social capital on survival in a population study while focusing on gender differences. METHODS: We used data from...... a Danish regional health survey with a five-year follow-up period, 2007-2012 (n = 9288, 53.5% men, 46.5% women). We investigated the association between social capital and all-cause mortality, performing separate analyses on a composite measure as well as four specific dimensions of social capital while...... controlling for covariates. Analyses were performed with Cox proportional hazard models by which hazard ratios and 95% confidence intervals were calculated. RESULTS: For women, higher levels of social capital were associated with lower all-cause mortality regardless of age, socioeconomic status, health...

  19. Prognostic precision in postoperative 99mTc-MDP scintimetry after femoral neck fracture

    International Nuclear Information System (INIS)

    A 2-year follow-up regarding healing complications, such as redisplacement, nonunion, and segmental collapse of the femoral head, was performed in 306 patients operated on for femoral neck fracture and examined with 99mTechnetium-MDP scintimetry within 2 weeks postoperatively. Scintimetric evaluation was performed by selecting regions of interest over the femoral head on the fracture side and the intact side and by comparing the uptake. A femoral head ratio fractured/intact side thus was obtained. Of 199 patients with an intact femoral head uptake (ratio ≤ 1.0), 181 showed no signs of healing complications at 2 years, whereas 18 had developed healing complications. Of 107 cases with a deficient femoral-head uptake (ratio 99mTc-MDP scintimetry performed within 2 weeks from femoral neck fracture can predict the outcome of the healing course with a prognostic accuracy of 91 per cent. (author)

  20. Capital Account Liberalization as a Signal

    OpenAIRE

    1996-01-01

    We present a model in which a government's current capital controls policy signals future policies. Controls on capital outflows evolve in response to news on technology, conditional on government attitudes towards taxation of capital. When there is uncertainty over government types, a policy of liberal capital outflows sends a favorable signal that may trigger a capital inflow. This prediction is consistent with the experience of several countries that have liberalized their capital account

  1. Uninsurable investment risks and capital income taxation

    OpenAIRE

    Césaire A. Meh; Terajima, Yaz

    2009-01-01

    This paper studies the capital accumulation and welfare implications of reducing capital income taxation in a general equilibrium economy with uninsurable investment risks. It has been shown that, with uninsurable investment risks, under-accumulation of capital may result compared to the complete markets economy. We show that reducing somewhat the capital income tax rate increases the capital stock and leads to a welfare gain. The complete elimination of the capital income tax, however, is no...

  2. Capital regulation and banks' financial decisions

    OpenAIRE

    Zhu, Haibin

    2015-01-01

    This paper develops a stochastic dynamic model to examine the impact of capital regulation on banks' financial decisions. In equilibrium, lending decisions, capital buffer and the probability of bank failure are endogenously determined. Compared to a flat-rate capital rule, a risk-sensitive capital standard causes the capital requirement to be much higher for small (and riskier) banks and much lower for large (and less risky) banks. Nevertheless, changes in actual capital holdings are less pr...

  3. Corruption, Public Expenditure, and Human Capital Accumulation

    OpenAIRE

    Spyridon Boikos

    2013-01-01

    In this paper we investigate the effect of corruption on human capital accumulation through two channels. The first channel is through the effect of corruption on the public expenditure on education and the second channel is through the effect of corruption on the physical capital investment. Public expenditure on education affects positively human capital, while physical capital can obsolete human capital. Initially, we construct an endogenous two-sector growth model with human capital accum...

  4. Intellectual capital: Evidence from banking industry

    OpenAIRE

    Somayeh Boostani; Shabnam Fotovvat; Karam Safari

    2014-01-01

    This paper investigates different components on intellectual capital including human capital, structural capital and customer capital in banking industry in city of Salmas, Iran. The study uses the questionnaire developed by Bontis (1998) [Bontis, N. (1998). Intellectual capital: an exploratory study that develops measures and models. Management Decision, 36(2), 63-76.] to measure the effects of human capital. The questionnaire consists of 42 questions and all of them are designed in Likert s...

  5. 75 FR 4635 - Risk-Based Capital Guidelines; Capital Adequacy Guidelines; Capital Maintenance: Regulatory...

    Science.gov (United States)

    2010-01-28

    ... Policy Analyst, (202) 906-5740, Capital Risk, or Marvin Shaw, Senior Attorney, (202) 906-6639...-in of the regulatory capital effects of the accounting changes, among other issues.\\9\\ \\9\\ 74 FR... Consolidated Financial Statements for Bank Holding Companies (FR Y-9C). In the NPR, the agencies...

  6. National Capital Planning Commission Meeting Transcripts

    Data.gov (United States)

    National Capital Planning Commission — Transcripts of the monthly (with the exception of August) National Capital Planning Commission meeting transcripts are provided for research to confirm actions...

  7. Immigrant Capital and Entrepreneurial Opportunities

    Directory of Open Access Journals (Sweden)

    Malavika Sundararajan

    2016-01-01

    Full Text Available Objective: The main objective of this study is to define and operationalize the concept of immigrant capital, a key factor that differentiates immigrant from host country entrepreneurs in how they recognize and start new ventures. Research Design & Methods: A detailed analysis of contemporary immigrant entrepreneurship and opportunity recognition literature was carried out. Using grounded theory, we synthesized the outcomes from the analysis of eight Canadian and U.S. case studies of successful immigrant entrepreneurs with the key findings from the literature to define and develop a model of immigrant capital. Findings: Based on our grounded theory development process we show that the concept of immigrant capital as a distillate of human, cultural, economic and social capital that goes beyond expected opportunity recognition (OR drivers like prior knowledge and prior experience to differentiate and enhance the immigrant entrepreneur’s ability to recognize business opportunities compared to host country entrepreneurs. We found immigrant capital to be a consequence of being boundary spanners in host and home country networks. Implications & Recommendations: Understanding a unique resource like immigrant capital, will help immigrant as well as host country entrepreneurs further develop their opportunity recognition ability by bridging gaps and fulfilling the needs for both, immigrant and host country consumers. Contribution & Value Added: The main contribution is the theoretical development, identification and definition of the immigrant capital model and propositions that will articulate the factors that lead to the conceptualization and operationalization of immigrant capital. Furthermore, the immigrant capital model can serve host country entrepreneurs to develop cross-cultural networks and jump-start entrepreneurial activities in their home countries as well as learn how to expand their operations into global markets.

  8. Intellectual capital: Evidence from banking industry

    Directory of Open Access Journals (Sweden)

    Somayeh Boostani

    2014-09-01

    Full Text Available This paper investigates different components on intellectual capital including human capital, structural capital and customer capital in banking industry in city of Salmas, Iran. The study uses the questionnaire developed by Bontis (1998 [Bontis, N. (1998. Intellectual capital: an exploratory study that develops measures and models. Management Decision, 36(2, 63-76.] to measure the effects of human capital. The questionnaire consists of 42 questions and all of them are designed in Likert scale. Cronbach alphas for human capital, structural capital and relationship capital were calculated as 0.79, 0.76 and 0.72, respectively. The implementation of Kolmogorov-Smirnov test has indicated that the data were normally distributed. Using t-student test, the study determined that while management team did not pay enough attention on human capital, there were some statistically significant evidence that social and relationship capitals gained good attention.

  9. Social capital in engineering education

    Science.gov (United States)

    Brown, Shane

    A theoretical argument is presented to suggest that engineering curriculum be designed to develop social capital. Additionally, the value of social capital in the retention of students in the College of Engineering, and the development, role, and value of social capital in an electrical engineering laboratory is evaluated. Data collected includes participant observations, informal and formal student interviews, and a researcher-designed survey. Social capital consists of interaction among individuals (networks), social rules that encourage interactions such as trust and reciprocity (norms), and the value of these networks and norms to the individual and the group. A large body of evidence suggests that social capital is valuable in terms of retention and multiple measures of academic achievement. The importance of social capital in retention was verified by students that have left engineering and those that remain, in terms of interactions with peers, teaching assistants, and engineering faculty; and a lack of sense of community in freshman engineering courses. Students that have left engineering differed in their perceptions of social capital from those that remain in their frustrations with teaching methods that encourage little discussion or opportunities to ask questions about assumptions or approaches. The open-ended nature of laboratory assignments, extensive required troubleshooting, and lack of specific directions from the teaching assistants were found to encourage the development of social capital in the laboratory setting. Degree centrality, a network measure of social capital as the number of ties an individual has within a social network, was found to be positively correlated with laboratory grade. Student perceptions of the importance of interactions with other students on success in the laboratory setting has a negative model effect on academic achievement in the laboratory. In contrast, student perceptions of the quality of interactions with

  10. Capitalism, Socialism and Public Choice

    Directory of Open Access Journals (Sweden)

    Adrián Osvaldo Ravier

    2010-10-01

    Full Text Available The essay examines Schumpeter’s understanding of the capitalist process and develops a critical analysis of his explanation of why capitalism cannot survive. Part I deals with how Schumpeter understood capitalism. Part II studies why –- from his point of view — capitalism couldn’t survive. Part III analysis why it is actually socialism, as a socio-political alternative, that is impractical and must collapse from contradictions inherent in it. Part IV presents some final reflections, presenting the public choice and the thought of James M. Buchanan, as an alternative to the pessimist Schumpeterian view.

  11. Capital humain, mobilité du capital et commerce international

    OpenAIRE

    Pierre VILLA

    1998-01-01

    The outsourcing of activities have been taking a peculiar shape recently. Human capital has remote control of the factories which are produced according to the local technology, and it defines the home technology in which it commits these factories and is committed itself. We introduce this idea in a hierarchical model of international trade with two countries, three factors and two final goods: the traditional one produced with labour and capital and the modern one produced with a non traded...

  12. Conventional capital, criminal capital, and criminal careers in drug trafficking

    OpenAIRE

    Wang, Wei

    2013-01-01

    Although the criminal career paradigm has explored various crime types, little effort has been conducted to systematically examine the pattern of drug trafficking careers. Ethnographic studies on drug trafficking have proposed that different forms of capital have an impact on the patterns of drug trafficking careers. The effects of conventional and criminal capital, however, have been the subject of much less empirical attention. Drawing from information on the criminal careers of 182 incarce...

  13. Internal capital markets and capital structure: bank versus internal debt.

    OpenAIRE

    Dewaelheyns, Nico; Van Hulle, Cynthia

    2007-01-01

    Recent empirical evidence has shown that internal capital markets within multinational corporations are used to reduce overall financing costs by optimizing the mix of internal and external debt of affiliates in different countries. We show that this cost saving use of internal capital markets is not limited to multinationals, but that domestic business groups actively optimize the internal/external debt mix across their subsidiaries as well. We use both subsidiary and group level financial s...

  14. Three-Dimensional Analysis of the Characteristics of the Femoral Canal Isthmus: An Anatomical Study

    Directory of Open Access Journals (Sweden)

    Xiu-yun Su

    2015-01-01

    Full Text Available Purpose. To establish a new approach for measuring and locating the femoral intramedullary canal isthmus in 3-dimensional (3D space. Methods. Based on the computed tomography data from 204 Chinese patients, 3D models of the whole femur and the corresponding femoral isthmus tube were reconstructed using Mimics software (Materialise, Haasrode, Belgium. The anatomical parameters of the femur and the isthmus, including the femur length and radius, and the isthmus diameter and height, were measured accordingly. Results. The mean ratio of the isthmus height versus the femoral height was 55 ± 4.8%. The mean diameter of the isthmus was 10.49 ± 1.52 mm. The femoral length, the isthmus diameter, and the isthmus tube length were significantly larger in the male group. Significant correlations were observed between the femoral length and the isthmus diameter (r=0.24, p<0.01 and between the femoral length and the isthmus height (r=0.6, p<0.01. Stepwise linear regression analyses demonstrated that the femoral length and radius were the most important factors influencing the location and dimension of the femoral canal isthmus. Conclusion. The current study developed a new approach for measuring the femoral canal and for optimization of customer-specific femoral implants.

  15. Hydrocele of Femoral Hernial Sac-an Extremely Rare Case.

    Science.gov (United States)

    Madhivanan, S; Jain, Ravindra Kumar

    2016-06-01

    A previously healthy 40-year-old woman presented with a right groin swelling for the last 2 years. Diagnosed preoperatively as uncomplicated, irreducible epiplocele of right femoral hernia, later per-operatively was diagnosed as hydrocele of femoral hernial sac also known as "femorocele"; ultrasound abdomen and groin demonstrated as a cystic mass right groin with no precise origin. All other basic line investigations within normal limits, except anemia 7 gm %, corrected to 10 gm %, by preoperative transfusions of 2 units of complete fresh blood. After low approach incision, excision of hydrocele sac, and feormal hernia repair were done with approximation of iliopectineal ligament to inguinal ligament, patient was discharged on 5th postoperative day with satisfactory wound healing and uneventful hospitalization. PMID:27358521

  16. Subchondral insufficiency fracture of the femoral head after liver transplantation

    International Nuclear Information System (INIS)

    A 53-year-old woman developed a subchondral insufficiency fracture of the right femoral head after undergoing a liver transplantation. Radiographs obtained at her first visit demonstrated a slight subchondral collapse in the superolateral portion of the femoral head. Magnetic resonance imaging (MRI) disclosed an irregular, discontinuous, low-intensity band on the T1-weighted image. After 7 months of conservative treatment, the hip pain and the radiograph abnormalities had both disappeared. On the follow-up T1-weighted MR image obtained 17 months after the onset, the band of low signal intensity was not obvious. A subchondral insufficiency fracture is one of the diagnoses to be considered in patients presenting with hip pain after a liver transplantation. (orig.)

  17. Effect of reaming medullary cavity on femoral fracture healing

    International Nuclear Information System (INIS)

    To study the effect of reaming medullary cavity on blood supply of femoral fracture and fracture healing. Methods: Animal model was developed through breaking the femur and nailing the fracture in twenty mature rabbits, half of them with medullary reamed cavity. Authors injected model 185 MBq of 99Tcm on the third day, the first, second and fourth week after operation, then conducted observation of blood supply through ECT. Authors also made histological and EM observation in different stages 1 week, 2 weeks, 4 weeks and 8 weeks after fracture. Results: Three days after operation, the ratio of 99Tcm uptaken amount was significantly decreased in the reaming medullary group. Immunohistochemistry study also revealed the processing of fracture healing was slower. Conclusion: After reaming of medullary cavity, the blood supply of femoral fracture is reduced, and fracture healing is delayed

  18. Subchondral insufficiency fracture of the femoral head after liver transplantation

    Energy Technology Data Exchange (ETDEWEB)

    Iwasaki, Kenyu; Yamamoto, Takuaki; Nakashima, Yasuharu; Mawatari, Taro; Motomura, Goro; Ikemura, Satoshi; Iwamoto, Yukihide [Kyushu University, Department of Orthopaedic Surgery, Fukuoka (Japan)

    2009-09-15

    A 53-year-old woman developed a subchondral insufficiency fracture of the right femoral head after undergoing a liver transplantation. Radiographs obtained at her first visit demonstrated a slight subchondral collapse in the superolateral portion of the femoral head. Magnetic resonance imaging (MRI) disclosed an irregular, discontinuous, low-intensity band on the T1-weighted image. After 7 months of conservative treatment, the hip pain and the radiograph abnormalities had both disappeared. On the follow-up T1-weighted MR image obtained 17 months after the onset, the band of low signal intensity was not obvious. A subchondral insufficiency fracture is one of the diagnoses to be considered in patients presenting with hip pain after a liver transplantation. (orig.)

  19. Osteochondral Fractures of the Lateral Femoral Trochlea in Young Athletes

    Science.gov (United States)

    Walsh, Stewart

    2016-01-01

    Method: Between May 2012 and September 2014 cluster of five patients with large osteochondral fractures of the lateral femoral trochlea were treated at our institution. These all occurred in high level male athletes, one at a decathlete and the other four soccer players. The MRI scan showed a characteristic appearance of a large subchondral fracture involving most of the lateral femoral trochlea. All patients were symptomatic. The patients were treated with open reduction and internal fixation using headless compression screws. The operative technique and short term results will be outlined. Results: Fixation appears successful in most cases. Conclusion: This appears to be a repetitive trauma related injury that occurs in young high-level athletes.

  20. A Case of Femoral Fracture in Klippel Trenaunay Syndrome

    Directory of Open Access Journals (Sweden)

    Sam Nahas

    2014-01-01

    Full Text Available We present a case of Klippel Trenaunay syndrome (KTS who presented with severe bilateral knee osteoarthritis (OA. Preoperative planning was commenced for a total knee replacement (TKR. Whilst on the waiting list the patient suffered a fall and sustained a complete femoral diaphysis fracture. Conservative management in the form of skin traction was initially chosen as significant extra- and intramedullary vascular malformations posed an increased risk of perioperative bleeding. This failed to progress to union, and so open reduction and internal fixation was performed. This subsequently resulted in on-going delayed union, which was subsequently managed with low intensity pulsed ultrasound (LIPUS, otherwise known as Exogen (Bioventus. exogen. Secondary exogen, 2012. There are only two previous documented cases of femoral fracture in KTS. This is the first report of a patient with this rare syndrome receiving this treatment. We discuss the management of fracture in this challenging group of patients.

  1. 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.

  2. Confronting hip resurfacing and big femoral head replacement gait analysis

    Directory of Open Access Journals (Sweden)

    Panagiotis K. Karampinas

    2014-03-01

    Full Text Available Improved hip kinematics and bone preservation have been reported after resurfacing total hip replacement (THRS. On the other hand, hip kinematics with standard total hip replacement (THR is optimized with large diameter femoral heads (BFH-THR. The purpose of this study is to evaluate the functional outcomes of THRS and BFH-THR and correlate these results to bone preservation or the large femoral heads. Thirty-one patients were included in the study. Gait speed, postural balance, proprioception and overall performance. Our results demonstrated a non-statistically significant improvement in gait, postural balance and proprioception in the THRS confronting to BFH-THR group. THRS provide identical outcomes to traditional BFH-THR. The THRS choice as bone preserving procedure in younger patients is still to be evaluated.

  3. Conservative management of femoral shaft fractures in children.

    Science.gov (United States)

    Moses, T; Pan, K L; Razak, M

    1998-09-01

    Thirty-two children with femoral shaft fractures were treated conservatively with initial skin traction followed by an additional period in a spica cast. After 12 to 20 months of follow up, none had any pain and all of them were attending school without problems. Shortening of more than 2 cm occurred in 6 (19%) of the 32 patients. The most important factor associated with shortening was an overlap of more than 2 cm of shortening of the fracture ends at the time of cast fitting. The average compensatory overgrowth at final assessment was 7 mm. Angular deformity did not pose a problem. This is a safe, simple and practical method to treat childhood femoral shaft fractures.

  4. Magnetic resonance imaging of idiopathic osteonecrosis of the femoral head

    Energy Technology Data Exchange (ETDEWEB)

    Yamazoe, Shoichi [Kyoto Prefectural Univ. of Medicine (Japan)

    1995-02-01

    Idiopathic osteonecrosis of the femoral head (IONF) can result in disability due to bone collapse and destruction. Therefore, early diagnosis of IONF and prognosis assessment are essential for treatment planning. This study investigated the early characteristic pattern of IONF on magnetic resonance imaging (MRI) and its correlation to the prognosis of the femoral head. MRI was performed repeatedly on fifty-one patients who had undergone renal transplantation. Three abnormal patterns were found in the T{sub 1}-weighted images: a band-like low-signal pattern (band pattern), an irregular low-signal pattern (mottled pattern), and a homogeneous low-signal area localized in the subchondral region (homogeneous pattern). Abnormal changes were detected in thirteen patients; twenty-three hips (25.5%). Most changes were evident within six months after transplantation. The earliest was found six weeks after transplantation. A band pattern was the initial finding in all hips showing abnormal changes. The band pattern did not spread peripherally as time passed. There was no progression from a mottled or homogeneous pattern to a band pattern either. Band-like patterns were subclassified into four types: MR-A, MR-B, MR-C and MR-D. Each of types according to the size and location of the band in relation to the weight bearing portion of the acetabulum was correlated to the prognosis of the femoral head. Three fourths of femoral heads with MR-C resulted in collapse on roentgenographs. These results show that MRI is useful for the diagnosis and evaluation of prognosis in IONF. (author).

  5. Calcar Preservation Arthroplasty for Unstable Intertrochanteric Femoral Fractures in Elderly

    OpenAIRE

    Celiktas, Mustafa; Togrul, Emre; Kose, Ozkan

    2015-01-01

    Background The treatment of unstable intertrochanteric fractures in elderly is still controversial. The purpose of this study is to present treatment strategies for unstable intertrochanteric fractures with hemiarthroplasty using standard uncemented collared femoral stems and at the same time preserving the fractured calcar fragment. Methods Fifty-four patients aged 75 years or older with unstable intertrochanteric fractures were included in this prospective cohort study. All patients were tr...

  6. Avascular necrosis of the femoral head presenting as trochanteric bursitis.

    OpenAIRE

    Mandell, B F

    1990-01-01

    Five patients are described with avascular necrosis of the femoral head who presented with ipsilateral trochanteric bursitis, in the absence of clearcut hip joint disease. Avascular necrosis was indicated by magnetic resonance imaging. It is suggested that clinical trochanteric bursitis, especially when refractory to local corticosteroid treatment, may be the initial sign of hip disease. In the patient with risk factor(s) for avascular necrosis that diagnosis should be considered and evaluate...

  7. Successful Return to Sport Following Distal Femoral Varus Osteotomy

    Science.gov (United States)

    Voleti, Pramod Babu; Degen, Ryan; Tetreault, Danielle; Krych, Aaron John; Williams, Riley J.

    2016-01-01

    Objectives: Distal femoral varus osteotomy is an effective treatment for unloading valgus knee malalignment; however, there is limited evidence on the ability for patients to return to athletics following this procedure. The purpose of this study is to report the functional outcomes and return to sport for athletic patients that underwent distal femoral varus osteotomy. Methods: A consecutive series of athletic patients that had undergone distal femoral varus osteotomy for symptomatic lateral compartment overload and valgus knee malalignment were prospectively reviewed. All patients had a minimum of 2-year follow-up. Radiographs were assessed to determine pre-operative and post-operative alignment. Details regarding sport of interest, ability to return to sport, and timing of return were obtained from the patients. Prospective institutional registries were utilized to collect pre-operative and post-operative Marx Activity Scale and International Knee Documentation Committee Subjective Knee Evaluation Form (IKDC) scores; these values were compared using paired t-tests with p allografts, 2 partial lateral meniscectomies, 1 lateral meniscus allograft transplantation, and 1 revision anterior cruciate ligament reconstruction. All patients were able to successfully return to their sport of choice (4 soccer, 2 softball, 2 running, 1 football, 1 basketball, 1 ice hockey, 1 volleyball, 1 rowing) at a mean of 11 months (range: 9-13). Furthermore, all 13 patients demonstrated an improvement in both Marx Activity Scale and IKDC scores after surgery. The mean improvement in Marx Activity Scale was 7 (mean pre-op: 4, mean post-op: 11, p ligamentous pathology is addressed. Therefore, distal femoral varus osteotomy should be considered in the athletic population for correction of symptomatic valgus knee malalignment.

  8. Strangulated Femoral Hernia Turned to Be Peritoneal Cyst

    OpenAIRE

    Dionysios Dellaportas; George Polymeneas; Christina Dastamani; Evi Kairi-Vasilatou; Ioannis Papaconstantinou

    2012-01-01

    Introduction. A peritoneal inclusion cyst is a very rare mesenteric cyst of mesothelial origin usually asymptomatic. A rare case of an 82-year-old white Caucasian female with a femoral hernia containing a large peritoneal inclusion cyst, mimicking strangulated hernia, is presented herein. Case Presentation. The patient was admitted to our hospital suffering from a palpable groin mass on the right, which became painful and caused great discomfort for the last hours. Physical examination reveal...

  9. EPIDEMIOLOGY AND SOCIAL BURDEN OF THE FEMORAL NECK FRACTURES.

    Directory of Open Access Journals (Sweden)

    Orlin Filipov

    2014-07-01

    Full Text Available The incidence of femoral neck fractures, one of the most common traumatic injuries in the elderly increases continuously due to the ageing of population on the planet and urbanization. In terms of global economic instability, increasingly more funds would have to be paid by the health systems for treatment of those fractures. Probably it will be necessary to revise and optimize some current therapeutic standards.

  10. Subchondral insufficiency fracture of the femoral head in younger adults

    International Nuclear Information System (INIS)

    We report two cases of subchondral insufficiency fracture of the femoral head observed in younger adults without any history of overexertion. In both cases, MRI revealed an irregular, discontinuous low-intensity band on the T1-weighted images. Both patients were treated operatively, and histological examination confirmed the diagnosis of subchondral fracture. A diagnosis of subchondral insufficiency fracture needs to be put in as one of the diagnoses in younger patients with a hip pain. (orig.)

  11. Subchondral insufficiency fracture of the femoral head in younger adults

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, Takuaki; Nakashima, Yasuharu; Shuto, Toshihide; Jingushi, Seiya; Iwamoto, Yukihide [Graduate School of Medical Sciences, Kyushu University, Department of Orthopaedic Surgery, Fukuoka (Japan)

    2007-06-15

    We report two cases of subchondral insufficiency fracture of the femoral head observed in younger adults without any history of overexertion. In both cases, MRI revealed an irregular, discontinuous low-intensity band on the T1-weighted images. Both patients were treated operatively, and histological examination confirmed the diagnosis of subchondral fracture. A diagnosis of subchondral insufficiency fracture needs to be put in as one of the diagnoses in younger patients with a hip pain. (orig.)

  12. Cortical bone distribution in the femoral neck of strepsirhine primates.

    Science.gov (United States)

    Demes, B; Jungers, W L; Walker, C

    2000-10-01

    The thickness of the inferior and superior cortices of the femoral neck was measured on X-rays of 181 strepsirhine primate femora representing 24 species. Neck length, neck depth and neck-shaft angle were also measured. The strength of the femoral neck in frontal bending was estimated by modeling the neck as a hollow cylinder, with neck depth as the outer diameter and cortical thickness representing the superior and inferior shell dimensions. Results indicate that the inferior cortex is always thicker than the superior cortex. The ratio of superior to inferior cortical thickness is highly variable but distinguishes two of the three locomotor groups in the sample. Vertical clingers and leapers have higher ratios (i.e., a more even distribution of cortical bone) than quadrupeds. The slow climbers tend to have the lowest ratios, although they do not differ significantly from the leapers and quadrupeds. These results do not confirm prior theoretical expectations and reported data for anthropoid primates that link greater asymmetry of the cortical shell to more stereotypical hip excursions. The ratio of superior to inferior cortical thickness is unrelated to body mass, femoral neck length, and neck-shaft angle, calling into question whether the short neck of strepsirhine primates acts as a cantilever beam in bending. On the other hand, the estimated section moduli are highly correlated with body mass and neck length, a correlation that is driven primarily by body mass. In conclusion, we believe that an alternative interpretation to the cantilever beam model is needed to explain the asymmetry in bone distribution in the femoral neck, at least in strepsirhine primates (e.g., a thicker inferior cortex is required to reinforce the strongly curved inferior surface). As in prior studies of cross-sectional geometry of long bones, we found slightly positive allometry of cortical dimensions with body mass. PMID:11006046

  13. Midterm Outcome of Femoral Artery Stenting and Factors Affecting Patency

    OpenAIRE

    Yu, Jae Seoung; Park, Keun-Myoung; Jeon, Yong Sun; Cho, Soon Gu; Hong, Kee Chun; Shin, Woo Young; Choe, Yun-Mee; Shin, Seok-Hwan; Kim, Kyung Rae

    2015-01-01

    Purpose: The purpose of this study was to evaluate the early and midterm results of superficial femoral artery (SFA) stenting with self-expanding nitinol stents and to identify the factors affecting patency. Materials and Methods: SFA stenting was performed in 165 limbs of 117 patients from January 2009 to December 2013. Patients were followed-up for the first occurrence of occlusion or stenosis based on computed tomography and duplex scan results and a decrease in ankle brachial index of >15...

  14. DXA and QCT geometric structural measurements of proximal femoral strength

    International Nuclear Information System (INIS)

    The worldwide annual incidence of hip fracture is approximately 1.7 million and the projected increase by 2050 is 6.26 million. In the presence bone mineral density (BMD) measurements have provided the gold standard of assessing the risk of fracture, but this approach does not reflect to bone geometry and clinical risk factors. Proximal femoral strength consists of the distribution of bone mass, diameter, area, length and angle of the femoral neck. Commercial software applications calculate bone distribution variables such as CSMI, CSA, HAL, angle of femoral neck or femur strength index (FSI). They can be either obtained by dual energy X-ray absorptiometry (DXA) absorption curves (2D measurement) or by qualitative computed tomography (QCT) scans (3D measurement). 93 clinic and outpatient individuals (cross sectional, not population based) were consecutively measured with a mean age of 67.6±11.97 years with femur neck BMD between 0.452 to 1.171 g/cm2 (mean 0.795±0.126 g/cm2). DXA measurements (Lunar iDXA) were compared with CT scans (Mindways QCT Pro). The study population showed high correlations for CSMI (r=0.91), CSA (r=0.87), and HAL (r=0.94) between the two measurement systems. After splitting into normal, osteogenic, osteoporotic subgroups the correlations became weaker by decreasing T-score, especially at femoral neck BMD. The coefficient of variance of QCT on cortical thickness, cortical BMD and center of mass was highly significant within the three groups. DXA and QCT have very high correlations on parameters of bone strength and biomechanical quality, but they have different approaches of measurement (X-ray absorption curves versus structural measurement). Also assessment of clinical risk factors must be considered as part of the patient's individual risk of sustaining an osteoporotic fracture. (author)

  15. Titanium elastic nailing in pediatric femoral diaphyseal fractures

    Directory of Open Access Journals (Sweden)

    Singh Roop

    2006-01-01

    Full Text Available Background: The need for operative fixation of pediatric femoral fractures is increasingly being recognised in the present decade. The conventional traction and casting method for management of pediatric femoral fractures is giving way for the operative stabilisation of the fracture. Methods : Thirty five pediatric patients in age group 6-14 years with diaphyseal femoral fractures were stabilised with two titanium nails. Patients were followed up clinically and radiologically for two years. The final results were evaluated using the criteria of Flynn et al. Technical problems and complications associated with the procedure were also analysed. Results : Overall results observed were excellent in 25, satisfactory in 8 and poor in 2 patients. Hospital time averaged 12.30 days in the series. All the fractures healed with an average time to union of 9.6 (6-14.4 weeks. Return to school was early with an average of 7.8 weeks. The soft tissue discomfort near the knee produced by the nails ends was the most common problem encountered. Shortening was observed in three cases and restriction of knee flexion in 5 patients. There was no delayed union, infection or refractures. Per operative technical problems included failure of closed reduction in 2 cases and cork screwing of nails in one case. Conclusion : We believe that with proper operative technique and aftercare TENs may prove to be an ideal implant for pediatric femoral fracture fixation. The most of the complication associated with the procedure are infact features of inexact technique and can be eliminated by strictly adhering to the basic principles and technical aspects.

  16. Optimization of Ecg Gating in Quantitative Femoral Angiography

    International Nuclear Information System (INIS)

    Purpose: To determine which phase of the heart cycle would yield the highest reproducibility in measuring atherosclerosis-related variables such as arterial lumen volume and edge roughness. Material and Methods: 35 patients with hypercholesterolemia underwent select ive femoral angiography, repeated four times at 10-min intervals. The angiographies were performed with Ecg-gated exposures. In angiographies 1 and 2 the delay from R-wave maximum to each exposure was 0.1 s, in angiographies 3 and 4 the delay was 0.1, 0.3, 0.5 or 0.7 s or the exposures were performed 1/s without Ecg gating. Arterial lumen volume and edge roughness were measured in a 20-cm segment of the superficial femoral artery using a computer-based densitometric method. Measurement reproducibility was determined by comparing angiographies 1-2 and angiographies 3-4. Results: When measuring arterial lumen volume and edge roughness of a 20-cm segment of the femoral artery, reproducibility was not dependent on Ecg gating. In measuring single arterial diameters and cross-sectional areas, the reproducibility was better when exposures were made 0.1 s after the R-wave maximum than when using other settings of the Ecg gating device or without Ecg gating. Conclusion: The influence of pulsatile flow upon quantitative measurement in femoral angiograms seems to be the smallest possible in early systole, as can be demonstrated when measuring single diameters and cross-sectional areas. In variables based on integration over longer segments, measurement reproducibility seems to be independent of phase

  17. Optimization of Ecg Gating in Quantitative Femoral Angiography

    Energy Technology Data Exchange (ETDEWEB)

    Nilsson, S.; Berglund, I.; Erikson, U. [Univ. Hospital, Uppsala (Sweden). Dept. of Oncology, Radiology and Clinical Immunology; Johansson, J.; Walldius, G. [Karolinska Hospital, Stockholm (Sweden). King Gustav V Research Inst.

    2003-09-01

    Purpose: To determine which phase of the heart cycle would yield the highest reproducibility in measuring atherosclerosis-related variables such as arterial lumen volume and edge roughness. Material and Methods: 35 patients with hypercholesterolemia underwent select ive femoral angiography, repeated four times at 10-min intervals. The angiographies were performed with Ecg-gated exposures. In angiographies 1 and 2 the delay from R-wave maximum to each exposure was 0.1 s, in angiographies 3 and 4 the delay was 0.1, 0.3, 0.5 or 0.7 s or the exposures were performed 1/s without Ecg gating. Arterial lumen volume and edge roughness were measured in a 20-cm segment of the superficial femoral artery using a computer-based densitometric method. Measurement reproducibility was determined by comparing angiographies 1-2 and angiographies 3-4. Results: When measuring arterial lumen volume and edge roughness of a 20-cm segment of the femoral artery, reproducibility was not dependent on Ecg gating. In measuring single arterial diameters and cross-sectional areas, the reproducibility was better when exposures were made 0.1 s after the R-wave maximum than when using other settings of the Ecg gating device or without Ecg gating. Conclusion: The influence of pulsatile flow upon quantitative measurement in femoral angiograms seems to be the smallest possible in early systole, as can be demonstrated when measuring single diameters and cross-sectional areas. In variables based on integration over longer segments, measurement reproducibility seems to be independent of phase.

  18. Diagnostic methods in ischemic necrosis of the femoral head

    International Nuclear Information System (INIS)

    Ischemic necrosis of the femoral head (INFH) must be diagnosed at an early stage of development, when therapeutic approaches such as forage biopsy or osteotomy can prevent or slow the normal progression of the disease to arthrosis. In this article, on the basis of the pathological changes that characterize process, we review the advantages and limitations of the principal diagnostic techniques (table I) currently employed in the study of INFH. (Author)

  19. Femoral neck non-union treatment by valgus intertrochanteric osteotomy

    Science.gov (United States)

    Schwartsmann, Carlos Roberto; Spinelli, Leandro de Freitas; Yépez, Anthony Kerbes; Boschin, Leonardo Carbonera; Silva, Marcelo Faria

    2015-01-01

    ABSTRACT OBJECTIVE : The purpose of this study was to evaluate the performance of valgus intertrochanteric osteotomy in femoral neck non-union. METHODS : Forty-two patients with femoral neck fractures with non-union treated using Pauwels' intertrochanteric osteotomy were reviewed. Demographics, time elapsed between fracture and surgery, follow--up, osteosynthesis used, Garden's classification, limb shortening, and x-rays were evaluated. RESULTS : Twenty-two men and 20 women were reviewed. The youngest patient was 18 years old and the oldest 65 years old, with a mean age of 42.4 years (±11.2). The minimum follow-up was 2 years, with a mean of 10.2 years. The average time elapsed between initial fracture and osteotomy was 6.5 months. Twel-ve cases were neglected femoral neck fractures. Nineteen patients were classified as Garden III, and 23 patients as Garden IV. After valgus osteotomy, non-union healing was observed in 38 patients (38/42; 90.4%). Healing of thirty-seven cases of pseudoarthrosis were obtained after the first-attempt osteotomy, and one case required two operations for healing. The osteotomy failed in four cases. Conside-ring the healed osteotomies, good to excellent functional results were achieved in 80.9% (34/42) of the patients. Total hip replacement was subsequently performed in 14.2% (6/42) of the patients for unfavoura-ble outcomes (two for cutting out, two for osteonecrosis, and two for osteoarthritis). CONCLUSIONS : Valgus intertrochanteric osteotomy has a high success rate in archiving healing in femoral neck non-union with good functional results. It is a biological and effective method. Level of Evidence IV, Therapeutic Study. PMID:27057146

  20. Rehabilitation in peripheral non femoral fractures: a review

    OpenAIRE

    Mangone, Giuseppe; Postiglione, Marco; Pasquetti, Pietro

    2010-01-01

    This paper is a short review of the available information on peripheral non femoral fractures (PNFF) which are strictly related to osteoporosis. Particular attention is focused on wrist fractures in view of their frequent occurrence as indicated by world wide statistics. Of special interest is the definition of risk groups (old age), risk areas (developed countries) and risk factors. Reference is made to 2008 WHO guidelines for fracture risk assessment. PNFF are a serious concern to health au...

  1. Pediatric femoral shaft fractures treated by flexible intramedullary nailing

    Institute of Scientific and Technical Information of China (English)

    K.C.Kapil Mani; R.C.Dirgha Raj; Acharya Parimal

    2015-01-01

    Background:Nowadays pediatric femoral fractures are more commonly managed with operative treatment rather than conservative treatment because of more rapid recovery and avoidance of prolonged immobilization.Children between the ages of 5-13 years are treated either by traction plus hip spica and flexible/elastic stable retrograde intramedullary nail,or external fixators in the case of open fractures.The aim of this study is to evaluate the outcome of pediatric femoral shaft fractures treated by stainless steel flexible intramedullary nail in children between 5 and 13 years of age.Methods:There were 32 cases of femoral shaft fractures which were all fixed with stainless steel flexible intramedullary nail under fluoroscopy.Long leg cast was applied at the time of fixation.Partial weight bearing was started 2 weeks after surgery.Patients were evaluated in follow-up study to observe the alignment of fracture,infection,delayed union,nonunion,limb length discrepancy,motion of knee joint,and time to unite the fracture.Results:We were able to follow up 28 out of 32 patients.The patients were 8.14 years of age on average.The mean hospital stay after operation was 4 days and fracture union time was 9.57 weeks.There were 3 cases of varus angulation,2 cases of anterior angulation,and 4 cases of limb lengthening.Conclusion:Patients aged between 5 and 13 years treated with flexible intramedullary nail for closed femoral shaft fracture have rapid union and recovery,short rehabilitation period,less immobilization and psychological impact,and cost-effective.

  2. Trans-femoral thromboaspiration for upper extremity ischemia

    OpenAIRE

    Gordhan, Ajeet

    2015-01-01

    Introduction Endovascular trans-femoral access catheter aspiration of thrombus within the proximal subclavian, brachial, radial and ulnar arteries for symptomatic upper extremity ischemic pain has not been previously reported. We describe a case in which a successful clinical outcome was achieved using long length neuro-endovascular aspiration catheters. Presentation of case A 45 year old female presented with diffuse left upper limb pain. Sonography revealed compromised upper extremity blood...

  3. Removal of well-fixed fixed femoral stems.

    Science.gov (United States)

    Laffosse, J-M

    2016-02-01

    The removal of a well-fixed prosthetic stem raises technical challenges. The objective is not only to remove the material, but also to prepare the implantation of a new prosthesis. Cemented stems are only very rarely unremovable; extraction of the cement mantle and plug raises the greatest difficulties. The main risk is cortex perforation, and a radiograph should be obtained at the slightest doubt. The removal of cementless stems carries a higher risk of fracture. Difficulties should be anticipated based on thorough familiarity with the implant design and on evaluations of implant fixation and bone stock. The intramedullary approach is usually sufficient to extract a cemented or cementless, well fixed, standard stem. Routine use of a transfemoral approach is warranted only in the following situations: revision surgery for infection, S-shaped stem, long stem, curvature or angulation of the femoral shaft, or unfeasible hip dislocation. However, the possibility that the intramedullary approach may need to be converted to a transfemoral approach should be anticipated. Thus, preoperative planning must include determination of the optimal length of a femoral osteotomy or femoral flap, should one be needed, and the surgeon must have access to all the revision implants and tools that might be needed for re-implantation. Experience with the various techniques is indispensable, as a well-performed extensive approach is associated with less morbidity than a fracture or trajectory error. There are three main techniques, which are described here: intramedullary extraction of a cementless stem, intramedullary extraction of a cemented stem, and transfemoral extraction through an extended trochanterotomy. The patients should receive detailed information on the difficulties of femoral stem removal and on the available solutions. PMID:26797009

  4. Corporate governance and intellectual capital

    Directory of Open Access Journals (Sweden)

    Rahmat Alizadeh

    2014-01-01

    Full Text Available The purpose of this paper is to examine the association between corporate governance and Intellectual capital in the pharmaceutical companies accepted in Tehran Stock Exchange over the period 2004-2009 using a regression based model. The study investigates the impacts of three some independent variables of the corporate governance (i.e. the number of board members, the relative extent of nonexecutive to executive directors, the auditing committee. The results suggest that corporate governance had no special effect on intellectual capital in the pharmaceutical companies. Furthermore among corporate governance's variables, the first one (i.e. board size had negative impact on firms' intellectual capital and the second and the third variables had no effects on intellectual capital.

  5. Taxes and Venture Capital Support

    DEFF Research Database (Denmark)

    Keuschnigg, Christian; Nielsen, Søren Bo

    2003-01-01

    's success, but is not verifiable. Asa result, the market equilibrium is biased towards inefficiently low venture capitalsupport. The capital gains tax becomes especially harmful, as it further impairsadvice and causes a first-order welfare loss. Once the capital gains tax is in place,limitations on loss off......-set may paradoxically contribute to higher quality of venturecapital finance and welfare. Subsidies to physical investment in VC-backed startupsare detrimental in our framework.Keywords: Venture capital, capital gains taxation, double moral hazard.JEL-Classification: D82, G24, H24, H25......In this paper we set up a model of start-up finance under double moral hazard.Entrepreneurs lack own resources and business experience to develop their ideas.Venture capitalists can provide start-up finance and commercial support. The effortput forth by either agent contributes to the firm...

  6. Osteonecrosis of the femoral head after bone marrow transplantation

    International Nuclear Information System (INIS)

    To retrospectively review findings of osteonecrosis of the femoral head after bone marrow transplantation. We reviewed the clinical and MR findings of osteonecrosis of the femoral head in 23 of 1112 patients who underwent marrow transplantation during a five-year follow-up period lasting from 1996 to 2000. Mean age at the time of diagnosis was 31 (range, 20-47) years, and the mean time from transplant to diagnosis was 17 months. All patients developed variable graft-versus-host disease and seventeen were treated with high-dose prednisolone and/or cysclosporin for severe acute or extensive chronic graft versus host disease. Osteonecrosis was diagnosed by magnetic resonance (MR) imaging, which allowed early detection of disease assessment of its stage. At the time of diagnosis, 15 hips were at stage I, 28 at stage II, two at stage III, and none at stage IV, according to the international ARCO classification system. Osteonecrosis of femoral diaphyses, the lower lumbar spine, or pelvic bones in the MR field was also found to have occurred in 11 patients. Initial treatment was conservative: 21 hips underwent surgery [core decompression (n=10), vascularized fibular bone graft (n=5), and joint replacement (n=6)]. In patients receiving high-dose steroids for the treatment of graft-versus-host disease, MR screening might help detect osteonecrosis at an early stage

  7. Osteonecrosis of the femoral head after bone marrow transplantation

    Energy Technology Data Exchange (ETDEWEB)

    Park, Jeong Mi; Jun, Jeong Su; Park, Chang Suk; Kim, Yong Sik; Kwon, Soon Yong; Kim, Yoo Jin; Kim, Chun Choo [The Catholic University of Korea College of Medicine, Seoul (Korea, Republic of)

    2003-07-01

    To retrospectively review findings of osteonecrosis of the femoral head after bone marrow transplantation. We reviewed the clinical and MR findings of osteonecrosis of the femoral head in 23 of 1112 patients who underwent marrow transplantation during a five-year follow-up period lasting from 1996 to 2000. Mean age at the time of diagnosis was 31 (range, 20-47) years, and the mean time from transplant to diagnosis was 17 months. All patients developed variable graft-versus-host disease and seventeen were treated with high-dose prednisolone and/or cysclosporin for severe acute or extensive chronic graft versus host disease. Osteonecrosis was diagnosed by magnetic resonance (MR) imaging, which allowed early detection of disease assessment of its stage. At the time of diagnosis, 15 hips were at stage I, 28 at stage II, two at stage III, and none at stage IV, according to the international ARCO classification system. Osteonecrosis of femoral diaphyses, the lower lumbar spine, or pelvic bones in the MR field was also found to have occurred in 11 patients. Initial treatment was conservative: 21 hips underwent surgery [core decompression (n=10), vascularized fibular bone graft (n=5), and joint replacement (n=6)]. In patients receiving high-dose steroids for the treatment of graft-versus-host disease, MR screening might help detect osteonecrosis at an early stage.

  8. An Advanced Quantitative Echosound Methodology for Femoral Neck Densitometry.

    Science.gov (United States)

    Casciaro, Sergio; Peccarisi, Marco; Pisani, Paola; Franchini, Roberto; Greco, Antonio; De Marco, Tommaso; Grimaldi, Antonella; Quarta, Laura; Quarta, Eugenio; Muratore, Maruizio; Conversano, Francesco

    2016-06-01

    The aim of this paper was to investigate the clinical feasibility and the accuracy in femoral neck densitometry of the Osteoporosis Score (O.S.), an ultrasound (US) parameter for osteoporosis diagnosis that has been recently introduced for lumbar spine applications. A total of 377 female patients (aged 61-70 y) underwent both a femoral dual X-ray absorptiometry (DXA) and an echographic scan of the proximal femur. Recruited patients were sub-divided into a reference database used for ultrasound spectral model construction and a study population for repeatability assessments and accuracy evaluations. Echographic images and radiofrequency signals were analyzed through a fully automatic algorithm that performed a series of combined spectral and statistical analyses, providing as a final output the O.S. value of the femoral neck. Assuming DXA as a gold standard reference, the accuracy of O.S.-based diagnoses resulted 94.7%, with k = 0.898 (p < 0.0001). Significant correlations were also found between O.S.-estimated bone mineral density and corresponding DXA values, with r(2) up to 0.79 and root mean square error = 5.9-7.4%. The reported accuracy levels, combined with the proven ease of use and very good measurement repeatability, provide the adopted method with a potential for clinical routine application in osteoporosis diagnosis.

  9. Natural frequency analysis of osseointegration for trans-femoral implant.

    Science.gov (United States)

    Shao, F; Xu, W; Crocombe, A; Ewins, D

    2007-05-01

    Osseointegration trans-femoral implants are a new orthopaedic anchoring method to attach prosthetic limbs. The clinical success of this promising technique depends on the effectiveness of osseointegration achieved after implantation. The aim of this study is to use the resonant characteristics of the implant system to determine the changes in stability as a reflection of boundary condition of the implant. With a small mechanical excitation, Vibration responses of the trans-femoral implant to a small mechanical excitation were measured using an accelerometer and the vibration signal was analyzed using Fast Fourier Transform (FFT) software to obtain the fundamental natural frequency (NF) of the implant system. In-vitro study was conducted using different silicone rubbers to simulate the interface condition. The result showed that a high NF corresponded to a high elastic modulus of the interface material between the implant and bone. A preliminary in-vivo study with one osseointegration trans-femoral implant patient showed that there was a decrease of NF after initial weight bearing rehabilitation. After continued weight bearing, the NF gradually returned to the pre-loading level at around day 24 and the general trend of the NF reached a stable state 38 days after the first weight bearing exercise. PMID:17377843

  10. Strangulated Femoral Hernia Turned to Be Peritoneal Cyst

    Directory of Open Access Journals (Sweden)

    Dionysios Dellaportas

    2012-01-01

    Full Text Available Introduction. A peritoneal inclusion cyst is a very rare mesenteric cyst of mesothelial origin usually asymptomatic. A rare case of an 82-year-old white Caucasian female with a femoral hernia containing a large peritoneal inclusion cyst, mimicking strangulated hernia, is presented herein. Case Presentation. The patient was admitted to our hospital suffering from a palpable groin mass on the right, which became painful and caused great discomfort for the last hours. Physical examination revealed a tender and tense, irreducible groin mass. An inguinal operative approach was selected and the mass was found protruding through the femoral ring. After careful dissection it turned out to be a large unilocular cyst, containing serous fluid, probably originating from the peritoneum. McVay procedure was used to reapproximate the femoral ring. Histologic examination showed a peritoneal inclusion cyst. Discussion. Peritoneal inclusion cysts are usually asymptomatic but occasionally present with various, nonspecific symptoms according to their size. Our case highlights that high index of clinical suspicion and careful exploration during repair of a hernia is mandatory in order to reach the correct diagnosis about hernia’s contents.

  11. Unstable femoral neck fractures in children - A new treatment option

    Directory of Open Access Journals (Sweden)

    Pruthi K

    2006-01-01

    Full Text Available Background : Femoral neck fractures in children are an uncommon but difficult situation. The aim of our study was to evaluate clinical results of closed reduction internal fixation and primary valgus osteotomy fixed with a tension band wire loop in high angled pediatric femoral neck fractures. Methods : In a prospective nonrandomized study conducted at 2 centres, sixteen children and adolescents with a Pauwel type 2/3 fracture neck femur were taken as participants. The femoral neck fractures were stabilized using closed reduction and internal fixation (6.5 mm noncannulated screw and a primary valgus osteotomy fixed with a tension band wire loop preferably within 24-36 hours of injury. Patients were evaluated to determine complications, clinical and radiological outcome. Results : At a mean post operative follow up of 5 years, union was achieved in all cases. Three patients had AVN and one developed coxavara. Results were evaluated using IOWA hip scores. Thirteen patients had an excellent result while 3 patients had a good result. Conclusion : Use of this technique holds promise in treating these difficult unstable fractures. Although results from a larger series are still awaited yet the use of this technique can safely be extended to stable fractures also, to minimize the incidence of complications as nonunion and AVN.

  12. Developing a sensation information message for femoral arteriography.

    Science.gov (United States)

    Clark, C R; Gregor, F M

    1988-03-01

    Sensation information is proposed as a way of decreasing the patient's distress during a threatening health care event. A first step in developing a sensation information message is to determine the content of the message. This study, using a systematic theory-based methodology, was conducted to describe and validate the common physical sensations experienced by patients undergoing the diagnostic procedure of femoral arteriography. (A conceptual framework based on how an individual perceives or senses a situation was used.) A three-stage survey design was used including: (1) tool development following observation of the procedure and pilot-testing of the interview schedule, (2) interview of patients who had undergone femoral arteriography about the sensations experienced during the procedure, and (3) validation of the responses. Twenty-one steps in the femoral arteriography procedure of which patients were aware were identified. Nine 'feeling' sensations commonly experienced during the procedure and the sights and sounds associated with the procedure were determined. The sequencing and duration of procedure steps were observed and the environment in which the procedure was performed was described.

  13. Magnetic resonance imaging of avascular necrosis of the femoral head

    International Nuclear Information System (INIS)

    To evaluate the diagnostic value and limitation of magnetic resonance imaging (MRI) in avascular necrosis of the femoral head (ANF), clinical stages and types were examined on MRI scans of 68 femoral heads of 46 ANF patients. Stage 1 patients fell into two groups: (1) stage 1-A group of real ANF in which abnormal findings were observed on both MRI and bone scanning and (2) stage 1-B group of asymptomatic ANF in which MRI detected abnormality that was missed by bone scanning. In these groups, MRI showed inhomogeneous, band, and spotty patterns. Stage 2 or 3 patients tended to have homogeneous or ring-pattern hypointensities on MRI. Histological examination showed that repair reaction at the marginal site of hypointensity was partly responsible for the occurrence of hypointensities. In Stage 4 patients, not only femoral head but also acetabular site was visible as homogeneous hypointensity, which was similar to that in osteoarthritis. Because repair areas, as well as necrotic areas, were frequently visualized as hypointensities in Stages 2 or more, MRI might overestimate necrotic areas. (N.K.)

  14. Management of Infected femoral pseudoaneurysm in intravenous drug abusers

    Directory of Open Access Journals (Sweden)

    F. Mahjoub

    2006-08-01

    Full Text Available Background: A plan for management of infected arterial pseudoaneurysm has evolved from our experience with forty two cases of such aneurysms treated between 1378 and 1382. Methods: Clinical data of 42 patients with femoral pseudoaneurysm resulting from addictive drug injection who presented in emergency department of Sina Hospital between 1378 and 1383 were retrospectively reviewed. Results: All patients were men with the mean age of 36.9 years. Twenty eight patients were referred from other medical centers. The mean time of delay in presentation was 17.3 days. The mean duration of drug injection was 14 months. Primary repair and emergent vascular bypass were performed in 3(7.1% and 2(4.8% patients, respectively. 5(11.9% patients undergone delayed revascularization. Thirty two (76.2% patients returned to their normal lifestyle without any vascular bypass. One patient required amputation and one patient died due to sepsis and acute renal insufficiency. Conclusion: Management of infected femoral pseudoaneurysms is simple ligation of the external iliac or femoral artery. When Doppler is not available “Operation Room and postoperative Direct Observation” is recommended in such patients to avoid unnecessary revascularization surgery.

  15. A Case of Bilateral Aseptic Necrosis of the Femoral Head

    Science.gov (United States)

    KAMAL, DIANA; TRĂISTARU, RODICA; KAMAL, C.K.; ALEXANDRU, D.O.; MOGOANTĂ, L.; GRECU, D.C.

    2014-01-01

    Aseptic necrosis of the femoral head is a disease whose etiology is not completely elucidated and generally affects young adults aged between 30 and 50 years. In a significant number of patients bilateral disease occurs, which makes detection in its early stages constitute an important objective. We present the case of a male patient, aged 23 years, with the following risk factors: smoking and chronic alcohol consumption, who is diagnosed with aseptic necrosis of the left femoral head, ARCO stage IV, and in just six months after the diagnosis and hip arthroplasty, he suffers an injury which leads to the same diagnosis in the contralateral hip. We want to emphasize that for all patients with a high index of suspicion there should be an MRI examination, because the plane radiographs or CT are most often not relevant in detecting early signs of this condition. Diagnosis of aseptic necrosis of the femoral head in the early stages is a necessity in order to obtain an optimal result of conservative treatment. PMID:26788359

  16. A Case of Bilateral Aseptic Necrosis of the Femoral Head.

    Science.gov (United States)

    Kamal, Diana; Trăistaru, Rodica; Kamal, C K; Alexandru, D O; Mogoantă, L; Grecu, D C

    2014-01-01

    Aseptic necrosis of the femoral head is a disease whose etiology is not completely elucidated and generally affects young adults aged between 30 and 50 years. In a significant number of patients bilateral disease occurs, which makes detection in its early stages constitute an important objective. We present the case of a male patient, aged 23 years, with the following risk factors: smoking and chronic alcohol consumption, who is diagnosed with aseptic necrosis of the left femoral head, ARCO stage IV, and in just six months after the diagnosis and hip arthroplasty, he suffers an injury which leads to the same diagnosis in the contralateral hip. We want to emphasize that for all patients with a high index of suspicion there should be an MRI examination, because the plane radiographs or CT are most often not relevant in detecting early signs of this condition. Diagnosis of aseptic necrosis of the femoral head in the early stages is a necessity in order to obtain an optimal result of conservative treatment.

  17. Radiographic features of teriparatide-induced healing of femoral fractures

    Directory of Open Access Journals (Sweden)

    Youngwoo Kim

    2015-12-01

    Full Text Available Teriparatide is a drug that is used to increase bone remodeling, formation, and density for the treatment of osteoporosis. We present three cases of patients with a femoral insufficiency fracture. The patients were administered teripatatide in an attempt to treat severe osteoporosis and to enhance fracture healing. We found several radiographic features around the femoral fractures during the healing period. 1 Callus formation was found at a very early stage in the treatment. Teriparatide substantially increased the unusually abundant callus formation around the fracture site at 2 weeks. Moreover, this callus formation continued for 8 weeks and led to healing of the fracture. 2 Abundant callus formation was found circumferentially around the cortex with a ‘cloud-like’ appearance. 3 Remodeling of the teriparatide-induced callus formation was found to be part of the normal fracture healing process. After 1 year, normal remodeling was observed on plain radiographs. These findings indicate that teriparatide can be used as an adjuvant therapy in the management of femoral insufficiency fractures.

  18. Oligopoly banking and capital accumulation

    OpenAIRE

    Nicola Cetorelli; Pietro F. Peretto

    2000-01-01

    We develop a dynamic general equilibrium model of capital accumulation where credit is intermediated by banks operating in a Cournot oligopoly. The number of banks affects capital accumulation through two channels. First, it affects the quantity of credit available to entrepreneurs. Second, it affects banks' decisions to collect costly information about entrepreneurs, and thus determines the efficiency of the credit market. We show that under plausible conditions, the market structure that ma...

  19. International Capital Movements Under Uncertainty

    OpenAIRE

    1983-01-01

    In this paper, we analyze the determinants of international movements of physical capital in a model with uncertainty and international trade in goods and securities.In our model, the world allocation of capital is governed, to some extent, by the asset preferences of risk averse consumer-investors. In a one-good variant in the spirit of the MacDougall model, we find that relative factor abundance, relative labor force size and relative production riskiness have separate but interrelated infl...

  20. The Era of Super Capitalism

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The world has entered the "super capitalism" era when one third of its economic activities are controlled by less than 3 percent of global financial capital. This year,a global economic recession,triggered by the U.S. subprime mortgage crisis,seems unavoidable. To tackle international financial problems,Tao Dong,Chief Economist for Asia at Credit Suisse First Boston in Hong Kong,shared his insights with China Business Journal. Excerpts follow.

  1. Splendid Arts Fram Ancient Capitals

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    IT was in the golden autumn in Beijing, when the sky was high and the air clear, that I hurried to Zhongshan Park to witness the display of the songs and dances of the seven Chinese ancient capitals. The flower beds arranged for the celebration of National Day were still there and the colorful blooms looked especially bright in the sunshine. The seven cities which have served as capitals in Chinese history are Beijing,

  2. Linguistic Capitalism and Algorithmic Mediation

    OpenAIRE

    Kaplan, Frédéric

    2014-01-01

    Google’s highly successful business model is based on selling words that appear in search queries. Organizing several million auctions per minute, the company has created the first global linguistic market and demonstrated that linguistic capitalism is a lucrative business domain, one in which billions of dollars can be realized per year. Google’s services need to be interpreted from this perspective. This article argues that linguistic capitalism implies not an economy of attention but an ec...

  3. THE IMPORTANCE OF VENTURE CAPITAL

    Directory of Open Access Journals (Sweden)

    IRINA ANGHEL-ENESCU

    2013-05-01

    Full Text Available Created in the United States of America, Venture Capital is an asset class which attracted recently the attention of the policy makers all over the world. But the concept is still not clearly defined and understood. This paper attempts at introducing in the concept, its characteristics, and reviewing some of the benefits Venture Capital investments can bring at both the macroeconomic level, by looking at the correlation with the economic growth, and at the microeconomic level, for the portfolio companies.

  4. Organizational Capital of the Enterprise

    Directory of Open Access Journals (Sweden)

    Vladimir Nikiforovich Belkin

    2016-09-01

    Full Text Available In the article, the main theoretical questions of the organizational capital of the enterprise are considered. The concept of «organizational capital of the enterprise» as a system consisting of three subsystems (organization of production, labour organization and management is introduced. It is shown that the organizational capital forms the labour relations system at the enterprise consisting of the cooperation, technological, economic, moral labour relations and the relations of workers’ responsibility. The model of cyclic evolution of crisis at the enterprise caused by shortcomings of the organizational capital is revealed. It is shown that the organizational capital is a basis for the realization of the human capital, which creates value added. A considerable attention is paid to the experience of the creation and functioning of the organizational capital at the enterprises of the Japanese corporation «Toyota». The Russian economic literature on crisis management quite often considers only the financial aspects of diagnostics, proposing the optimization of cash flows, elimination of excess stocks, transition to the medium-term budgeting and others. However, the deep reasons of crisis need to be found not only in financial streams, but also in the system of the work relationships. The shortcomings in the development of technological, cooperation, economic, moral labour relations and the relations of responsibility directly reflects the shortcomings in the development of the elements of the organizational capital as they «are adjusted» by these elements. In turn, organizational problems affect the product quality leading to the customer attrition and decrease in the enterprise’s financial performance. The lack of financial resources cause the need to save costs (first of all, on personnel, that was brightly shown by the economic crisis of 2009 that even more weakens the enterprise and system of labour relations. Finally, the

  5. Bridges in social capital: A review of the definitions and the social capital of social capital researchers

    OpenAIRE

    Akcomak, Semih

    2009-01-01

    There has been a recent surge of interest in social economics and social capital. Articles on social capital that are published in the last five years constitute more than 60 percent of all articles on social capital. Research on social capital is now massive and spans sociology, economics, management, political science and health sciences. Despite this interest there is still not a consensus on the definition and the measurement of social capital. This paper argues that this is due to lack o...

  6. Sand in the Wheels of Capitalism

    DEFF Research Database (Denmark)

    Bersem, Mario; Perotti, Enrico; von Thadden, Ernst-Ludwig

    , the rest receives only lab or income; and (ii) voters have different vintages of human capital. We identify young workers as the decisive voter group, with preferences in between capitalists who favor a free capital market, and old workers, who favor restricted capital mobility. We show that capital market...

  7. 47 CFR 32.4540 - Other capital.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Other capital. 32.4540 Section 32.4540... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.4540 Other capital. This... capital stock, capital recorded upon the reorganization or recapitalization of the company and...

  8. 12 CFR 208.4 - Capital adequacy.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 2 2010-01-01 2010-01-01 false Capital adequacy. 208.4 Section 208.4 Banks and... Requirements § 208.4 Capital adequacy. (a) Adequacy. A member bank's capital, as defined in appendix A to this...) Standards for evaluating capital adequacy. Standards and guidelines by which the Board evaluates the...

  9. 12 CFR 725.5 - Capital stock.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Capital stock. 725.5 Section 725.5 Banks and... ADMINISTRATION CENTRAL LIQUIDITY FACILITY § 725.5 Capital stock. (a) The capital stock of the Facility is divided... or hypothecated except to the Facility. (b) The capital stock subscriptions provided for in §§...

  10. 47 CFR 65.304 - Capital structure.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Capital structure. 65.304 Section 65.304... OF RETURN PRESCRIPTION PROCEDURES AND METHODOLOGIES Exchange Carriers § 65.304 Capital structure. The proportion of each cost of capital component in the capital structure is equal to: Proportion in the...

  11. Transmission line capital costs

    International Nuclear Information System (INIS)

    The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy's Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs

  12. Diagnostic methods in ischemic necrosis of the femoral head. Metodos de diagnostico en la necrosis isquemica de la cabeza femoral

    Energy Technology Data Exchange (ETDEWEB)

    Parra Blanco, J.A.; Pagola Serrano, M.A.; Delgado Macias, M.T. (Hospital Universitario Marques de Valdecilla, Santander (Spain))

    1994-01-01

    Ischemic necrosis of the femoral head (INFH) must be diagnosed at an early stage of development, when therapeutic approaches such as forage biopsy or osteotomy can prevent or slow the normal progression of the disease to arthrosis. In this article, on the basis of the pathological changes that characterize process, we review the advantages and limitations of the principal diagnostic techniques (table I) currently employed in the study of INFH. (Author)

  13. Femoral head viability following hip fracture. Prognostic role of radionuclide bone imaging

    International Nuclear Information System (INIS)

    A retrospective study was made of all radionuclide (RN) bone images performed at our institution over a two-year period to evaluate femoral head viability after nonpathologic fracture of the femoral neck. Twelve patients had avascular femoral heads during the perioperative period, of which nine had adequate follow-up. Seven of these nine patients had follow-up bone images. Revascularization occurred in four patients, while three had persistent absence of femoral head uptake. With clinical follow-up ranging from four to 29 months (median: 14 months), only two of these nine patients developed clinical or radiographic evidence of osteonecrosis. RN bone imaging performed in the perioperative period does not reliably predict the development of post-traumatic osteonecrosis of the femoral head and, at present, should not be used to determine prospectively method of treatment of femoral neck fracture

  14. MR imaging measurement of the femoral anteversional angle as a PACS image viewer

    International Nuclear Information System (INIS)

    The accurate measurement of the femoral anteversion is very important to the practice of orthopedic and osteotomy. It is measured by means of the axis of head and neck of the femur and the knee axis. At the present time, widely used computed tomography method of measuring anteversion on femoral necks of patients. Measurement by the manual method and image viewer of computed tomography to determine the anteversion of femoral head were carried out on both femurs. In September and October 2002, 5 patients 28 to 36 years of age were randomly selected from Seoul National University Hospital. The purpose of this paper was to introduce a new method to measure femoral anteversion angle utilizing PACS image viewer program in the MR imaging. Significant difference was observed between the right and left side the image viewer measurement of femoral anteversion. In conclusion, MR imaging very usefulness in the measured the angle of the femoral anteversion

  15. STATISTICAL MODELS OF REPRESENTING INTELLECTUAL CAPITAL

    Directory of Open Access Journals (Sweden)

    Andreea Feraru

    2016-07-01

    Full Text Available This article entitled Statistical Models of Representing Intellectual Capital approaches and analyses the concept of intellectual capital, as well as the main models which can support enterprisers/managers in evaluating and quantifying the advantages of intellectual capital. Most authors examine intellectual capital from a static perspective and focus on the development of its various evaluation models. In this chapter we surveyed the classical static models: Sveiby, Edvisson, Balanced Scorecard, as well as the canonical model of intellectual capital. Among the group of static models for evaluating organisational intellectual capital the canonical model stands out. This model enables the structuring of organisational intellectual capital in: human capital, structural capital and relational capital. Although the model is widely spread, it is a static one and can thus create a series of errors in the process of evaluation, because all the three entities mentioned above are not independent from the viewpoint of their contents, as any logic of structuring complex entities requires.

  16. 12 CFR 303.241 - Reduce or retire capital stock or capital debt instruments.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Reduce or retire capital stock or capital debt... RULES OF PRACTICE FILING PROCEDURES Other Filings § 303.241 Reduce or retire capital stock or capital... or preferred stock, or to retire any part of its capital notes or debentures pursuant to section...

  17. MR evaluation of the articular cartilage of the femoral head during traction. Correlation with resected femoral head

    Energy Technology Data Exchange (ETDEWEB)

    Nakanishi, K. [Osaka Seamens Insurance Hospital (Japan). Dept. of Radiology; Tanaka, H.; Narumi, Y.; Nakamura, H. [Osaka Univ. Medical School (Japan). Dept. of Radiology; Nishii, T.; Masuhara, K. [Osaka Univ. Medical School (Japan). Dept. of Orthopedic Surgery

    1999-01-01

    Objective: The purpose was to evaluate the articular cartilage of the hip joint with MR during traction and compare the findings with the resected specimen or arthroscopic findings. Material and Methods: Eight healthy volunteers, 5 patients with osteonecrosis, 5 with acetabular dysplasia, and 5 with advanced osteoarthrosis underwent MR imaging to evaluate the articular cartilage of the hip joint. Coronal fat-suppressed 3D spoiled gradient-echo (SPGR) images were obtained during traction. Identical imaging was performed of all the resected femoral heads of the osteonecrosis and advanced osteoarthrosis patients, and was correlated with the macroscopic pathological findings. Results: The traction was effective and the femoral articular cartilage was clearly identified in all 8 control subjects, and in all cases of osteonecrosis and acetabular dysplasia. In 4 cases of osteonecrosis, chondral fracture was identified in the boundary between the necrosis and the normal area. In all cases of advanced osteoarthrosis, cartilage was identified only at the medial side. The MR images of osteonecrosis and advanced osteoarthrosis corresponded well with the MR images of the resected femoral heads and the macroscopic findings. (orig.)

  18. Toward A Reliable Cost of Capital

    OpenAIRE

    Jeremiah U. Idialu; Amos O. Arowoshegbe

    2013-01-01

    This is study is designed to provide basis for determining a reliable cost of capital. Corporate finance textbooks typically devote several chapters to the problems of capital budgeting, cash flow estimation and the determination of a firm’s cost of capital. However, it can be difficult in practice to obtain reliable estimates of the inputs required to perform capital budgeting as recommended by the textbooks. Also, the Weighted Average Cost of Capital (WACC) is commonly presented in a way th...

  19. Distributional consequences of capital tax coordination

    OpenAIRE

    2005-01-01

    This paper has two ambitions. First, we review the economic literature on tax coordination. Second, we argue that the taxation of capital is not an issue of efficiency, but instead an issue of equity. In particular, capital tax coordination can alter the vertical distribution of income between the production factors capital and labour. Capital is in perfectly elastic supply in a small open economy. Therefore the tax incidence falls to the immobile factor, labour. By contrast, capital is in in...

  20. Natural Capital: From Metaphor to Measurement

    OpenAIRE

    FENICHEL, ELI P.; Abbott, Joshua K.

    2014-01-01

    Current efforts to value ecosystem services have contributed little to the valuation of natural capital, suggesting that in practice "nature is capital" primarily serves as a metaphor. We provide a theoretically motivated approach for recovering natural capital prices that expands beyond idealized management to encompass current, likely inefficient, management institutions. Theoretically consistent capital valuation requires adjusting for the net marginal productivity of the natural capital a...