The Canadian hydrogen safety program (CHSP) is a project initiative of the Codes and Standards Working Group of the Canadian transportation fuel cell alliance (CTFCA) that represents industry, academia, government, and regulators. The Program rationale, structure and contents contribute to acceptance of the products, services and systems of the Canadian Hydrogen Industry into the Canadian hydrogen stakeholder community. It facilitates trade through fair insurance policies and rates, effective and efficient regulatory approval procedures and accommodation of the interests of the general public. The Program integrates a consistent quantitative risk assessment methodology with experimental (destructive and non-destructive) failure rates and consequence-of-release data for key hydrogen components and systems into risk assessment of commercial application scenarios. Its current and past six projects include Intelligent Virtual Hydrogen Filling Station (IVHFS), Hydrogen clearance distances, comparative quantitative risk comparison of hydrogen and compressed natural gas (CNG) refuelling options; computational fluid dynamics (CFD) modeling validation, calibration and enhancement; enhancement of frequency and probability analysis, and Consequence analysis of key component failures of hydrogen systems; and fuel cell oxidant outlet hydrogen sensor project. The Program projects are tightly linked with the content of the International Energy Agency (IEA) Task 19 Hydrogen Safety. (author)
The National Research Council of Canada is establishing a coordinated national program of fusion research and development that is planned to grow to a total annual operating level of about $20 million in 1985. The long-term objective of the program is to put Canadian industry in a position to manufacture sub-systems and components of fusion power reactors. In the near term the program is designed to establish a minimum base of scientific and technical expertise sufficient to make recognized contributions and thereby gain access to the international effort. The Canadian program must be narrowly focussed on a few specializations where Canada has special indigenous skills or technologies. The programs being funded are the Tokamak de Varennes, the Fusion Fuels Technology Project centered on tritium management, and high-power gas laser technology and associated diagnostic instrumentation
In support of the Treaty on the Non-Proliferation of Nuclear Weapons Canada provides technical support to the International Atomic Energy Agency for the development of safeguards relevant to Canadian designed and built nuclear facilities. Some details of this program are discussed, including the philosophy and development of CANDU safeguards systems; the unique equipment developed for these systems; the provision of technical experts; training programs; liaison with other technical organizations; research and development; implementation of safeguards systems at various nuclear facilities; and the anticipated future direction of the safeguards program
CANDU power reactor fuel has demonstrated an enviable operational record. More than 99.9% of the bundles irradiated have provided defect-free service. Defect excursions are responsible for the majority of reported defects. In some cases research and development effort is necessary to resolve these problems. In addition, development initiatives are also directed at improvements of the current design or reduction of fueling cost. The majority of the funding for this effort has been provided by COG (CANDU Owners' Group) over the past 10 to 15 years. This paper contains an overview of some key fuel technology programs within COG. The CANDU reactor is unique among the world's power reactors in its flexibility and its ability to use a number of different fuel cycles. An active program of analysis and development, to demonstrate the viability of different fuel cycles in CANDU, has been funded by AECL in parallel with the work on the natural uranium cycle. Market forces and advances in technology have obliged us to reassess and refocus some parts of our effort in this area, and significant success has been achieved in integrating all the Canadian efforts in this area. This paper contains a brief summary of some key components of the advanced fuel cycle program. (Author) 4 figs., tab., 18 refs
Canada supports international safeguards as a means by which the proliferation of nuclear weapons can be discouraged. Canada recognizes that,to meet that the IAEA must have effective safeguards techniques and the active cooperation of Member States. Therefore the Canadian Government decided in 1976 to initiate a program in support of IAEA safeguards, known as the Canadian Safeguards Support Program (CSSP). The CSSP is funded and administered by the Atomic Energy Control Board (AECB). The CSSP is a co-ordinated program for the development and the application of safeguards instruments and techniques for nuclear facilities and materials on behalf of the IAEA and also in support of Canada's own national nuclear material safeguards system, implemented by the AECB. (author)
A brief review of the Canadian nuclear power program is presented. Domestically developed CANDU (CANada Deuterium Uranium) reactors account for all of Canada's nuclear electric capacity (5000 MWe in operation and 10,000 MWe under construction or in commissioning) and have also been exported. CANDU reactors are reliable, efficient, and consistently register in the world's top ten in performance. The safety record is excellent. Canada has excess capability in heavy water and uranium production and can easily service export demands. The economic activity generated in the nuclear sector is high and supports a large number of jobs. The growth in nuclear commitments has slowed somewhat as a result of the worldwide recession; however, the nuclear share of expected electricity demand is likely to continue to rise in the next decade. Priorities in the future direction of the program lie in the areas of maintaining high response capability to in-service problems, improving technology, high-level waste management, and advanced fuel cycles. (author)
McFee, John E.; Das, Yogadhish; Faust, Anthony A.
Defence R&D Canada (DRDC), an agency within the Department of National Defence, has been conducting research and development (R&D) on the detection of landmines for countermine operations and of unexploded ordnance (UXO) for range clearance since 1975. The Canadian Centre for Mine Action Technologies (CCMAT), located at DRDC Suffield, was formed in 1998 to carry out R&D related to humanitarian demining. The lead group responsible for formulating and executing both countermine and humanitarian R&D programs in detection is the Threat Detection Group at DRDC Suffield. This paper describes R&D for both programs under the major headings of remote minefield detection, close-in scanning detection, confirmation detection and teleoperated systems. Among DRDC's achievements in landmine and UXO detection R&D are pioneering work in electromagnetic and magnetic identification and classification; the first military-fielded multisensor, teleoperated vehicle-mounted landmine detection system; pioneering use of confirmation detectors for multisensor landmine detection systems; the first fielded thermal neutron activation landmine confirmation sensor; the first detection of landmines using a real-time hyperspectral imager; electrical impedance imaging detection of landmines and UXO and a unique neutron backscatter landmine imager.
Ketovuori, Mikko Mr.
This article is about a multidisciplinary R&D project in which a Canadian Learning Through The Arts (LTTA) program was imported to Finland in 2003–2004. Cultural differences in arts education in Finland and Canada are discussed. While Finland has a national school curriculum with all the arts included. Canada relies more on partnerships to ensure arts education for children in the schools. Despite the fact that Canadian learning methods appeared to be quite similar to the ones Finnish teacher...
This paper deals with the problems of an overseas regulatory agency in licensing a Canadian-supplied nuclear plant which is referenced to a plant in Canada. Firstly, the general problems associated with the use of a reference plant are discussed. This is followed by a discussion of specific problems which arise from the licensing practices in Canada. The paper concludes with recommendations to simplify the task of demonstrating the licensability of an overseas CANDU plant
This article is about a multidisciplinary R&D project in which a Canadian Learning Through The Arts (LTTA) program was imported to Finland in 2003-2004. Cultural differences in arts education in Finland and Canada are discussed. While Finland has a national school curriculum with all the arts included. Canada relies more on partnerships to ensure…
Boudreau, P. M.; Breithaupt, R. W.; McNally, J. L.
The progressions and selection of design features for the Canadian segment of a mobile satellite (MSAT) communications system are traced. The feasibility study for a satellite-based public and government mobile communications service to underserved areas was carried out between 1980-82. The results covered the market demand, commercial viability, user cost-benefit, and spacecraft concepts. A subsequent 2 yr study was initiated to proceed with project definition. A market of 1.1 million users was identified in all of Canada, with MSAT replacing other systems for 50 percent of the market. Operations would be in the 806-890 MHz range. Traffic will be routed through gateway links functioning in the 8/7 GHz SHF band while the mobile units will be connected through an 821-825 MHz up link and an 866-870 MH downlink. New technologies will be needed for a central control station, the gateway stations, and the base stations for the mobile radio service, the mobile user terminals, and data collection platforms.
The Canadian Nuclear Fuel Waste Management Program involves research into the storage and transportation of used nuclear fuel, immobilization of fuel waste, and deep geological disposal of the immobilized waste. The program is now in the fourth year of a ten-year generic research and development phase. The objective of this phase of the program is to assess the safety and environmental aspects of the deep underground disposal of immobilized fuel waste in plutonic rock. The objectives of the research for each component of the program and the progress made to the end of 1983 are described in this report
The Intern Program was introduced at the Canadian Nuclear Safety Commission, Canada's Nuclear Regulator in response to the current competitive market for engineers and scientists and the CNSC's aging workforce. It is an entry level staff development program designed to recruit and train new engineering and science graduates to eventually regulate Canada's nuclear industry. The program provides meaningful work experience and exposes the interns to the general work activities of the Commission. It also provides them with a broad awareness of the regulatory issues in which the CNSC is involved. The intern program is a two-year program focusing on the operational areas and, more specifically, on the generalist functions of project officers. (author)
An overview is presented of the status of the research and development program, under rsponsibility of the Atomic Energy of Canada Limited (AECL), for assessing the concept of nuclear fuel waste disposal deep in plutonic rock of the Canadian Shield. A passive multi-barrier concept has been adopted for disposal that combines the containment provided by the structural, hydraulic and geochemical characteristics of the rock mass with a series of engineered barriers. The conceptual disposal vault consists of an array of disposal rooms excavated in plutonic rock at a depth between 500 and 1000 m. Prior to disposal, the waste would be placed in cylindrical containers surrounded by a buffer, which is a mixture of bentonite cla and sand. The rooms would be backfilled with mixture of clay, and crushed granite or san. Bulkheads would seal the entrances. Closure would be achieved by backfilling the access tunnels in the same manner as the rooms and than backfilling the shafts with compacted clay and crushed granite separated by a series of supporting bulkheads. Very preliminary results from the case study indicate that the good rock provides the most effective barrier to movement of radionuclides to the surface. The most significant pathways through the geosphere involve diffusion through the good rock to the major fracture intersecting the vault, convection upward along the fracture, and discharge either at topographic lows or through a domestic water supply well used by the critical group. Long-lived non-sorbing radionuclides, available in the gaps between the fuel pellets and the fuel cladding or at the grain boundaries, contribute most to the radiological dose. With appropriate constraints on the location of the waste packages relative to the major fracture zones, radiological risk is expected to satisfy the regulatory criteria. (H.W.) 5 figs
Taylor, Jeff Gordon; Joubert, Ray
Pharmacists have a long history of helping Canadians with minor ailments. This often has involved management with over-the-counter medications. If pharmacists felt that the best care required something more robust, they would refer the patient to a physician. In hopes of improving the care of such ailments, Canadian provinces have granted pharmacists the option of selecting medications traditionally under physician control. This review examines the Canadian perspective on pharmacists prescribing for minor ailments and the evidence of value for these programs. It might provide guidance for other jurisdictions contemplating such a move. PMID:27570460
Kearns, Judith; Turner, Brian
Describes the transformation of a writing program at a small Canadian university from a subdivision of the English department into a separate, interdisciplinary Centre for Academic Writing. Describes the origins of the program and recounts the processes of review and transition the program underwent. Notes how curricular and…
Clinton, L. A.; Haidl, F. M.; Hymers, L. A.; van der Flier-Keller, E.
Established in the early 1970s, EdGEO supports locally driven geosciences workshops for Canadian teachers. Workshops are organized by geoscientists and teachers, and typically have field, laboratory and classroom components. Grants of up to $3000 per workshop are available from the National EdGEO Program. By providing educational opportunities for today's teachers and, through them, their students, EdGEO seeks to cultivate a heightened awareness of our planet. EdGEO workshops provide teachers with potential fieldtrip sites for their students and the knowledge, enthusiasm and materials to inspire their students to engage in geoscience. Networking opportunities with local experts promote the importance of the geoscience profession. The expected result is an improved capacity on the part of Canadians to understand the Earth and to make informed decisions, especially with regard to the use of mineral and energy resources, the maintenance and remediation of the environment, and response to geological hazards. There exists a critical need to provide teachers with training and resources to tackle their Earth science curricula. In 2008, EdGEO supported fourteen workshops, with an unprecedented 521 teachers attending. These teachers then used our resources to reach an estimated 14,000 students during that single academic year. EdGEO workshops are locally driven and are therefore very diverse. Workshops are strongly tied to the provincial curriculum, focus on a specific geoscience topic, or may be largely field-based to demonstrate and practice how field activities could be incorporated into Earth science teaching. Many strive to include all of these important components. Geoscientists and teachers work collaboratively to develop and deliver EdGEO workshops to ensure that the activities can be effectively used in the classroom. The length of these professional development opportunities range from two-hour sessions to several days, and can generally accommodate up to twenty
Twa, David D W; Squair, Jordan W; Skinnider, Michael A; Ji, Jennifer X
Clinical investigators within the Canadian and international communities were shocked when the Canadian Institutes of Health Research (CIHR) announced that their funding for the MD/PhD program would be terminated after the 2015-2016 academic year. The program has trained Canadian clinician-scientists for more than two decades. The cancellation of the program is at odds with the CIHR's mandate, which stresses the translation of new knowledge into improved health for Canadians, as well as with a series of internal reports that have recommended expanding the program. Although substantial evidence supports the analogous Medical Scientist Training Program in the United States, no parallel analysis of the MD/PhD program has been performed in Canada. Here, we highlight the long-term consequences of the program's cancellation in the context of increased emphasis on translational research. We argue that alternative funding sources cannot ensure continuous support for students in clinician-scientist training programs and that platform funding of the MD/PhD program is necessary to ensure leadership in translational research. PMID:26529253
Akker-Scheek, Inge van den
As a result of the increasing demand for total hip arthroplasties (THA) and total knee arthroplasties (TKA), waiting lists are growing. To cope with this problem, many hospitals have introduced short-stay programs; a consequence is increased responsibility of the patient regarding his own rehabilita
McLennan, John D; Leon, Tina; Haffey, Sue; Barker, Leslie A S
The framework of a Canadian-developed parent education program, Nobody's Perfect, was used in the development of a new parent education program offered to parents attending a child nutrition rehabilitation program in the Dominican Republic. While key teaching elements of the original program were retained (e.g., encouraging active participation, emphasizing facilitation over didactic teaching, using experiential learning), locally relevant content was inserted (e.g., diarrhea prevention and treatment strategies). A Canadian team trained a group of Dominicans to deliver the new program to parents of children recovering from malnutrition. This paper describes the development, implementation, and resulting parenting program from this effort. This 8-week program may find use in other settings. In addition, the experience gained from this exportation endeavor may be useful for others undertaking similar initiatives. PMID:19261157
Després, Jean-Pierre; Alméras, Natalie; Gauvin, Lise
Canada has experienced a substantial reduction in mortality related to cardiovascular disease (CVD). There is a general consensus that more effective and widespread health promotion interventions may lead to further reductions in CVD risk factors and actual disease states. In this paper, we briefly outline the prevalence of selected risk factors for CVD in Canada, describe characteristics of the Canadian labor market and workforce, and depict what is known about health and wellness program delivery systems in Canadian workplaces. Our review indicates that there have been numerous and diverse relevant legislative and policy initiatives to create a context conducive to improve the healthfulness of Canadian workplaces. However, there is still a dearth of evidence on the effectiveness of the delivery system and the actual impact of workplace health and wellness programs in reducing CVD risk in Canada. Thus, while a promising model, more research is needed in this area. PMID:24607012
The Canadian Nuclear Fuel Waste Management Program is in the fifth year of a ten-year generic research and development phase. The major objective of this phase of the program is to assess the basic safety and environmental aspects of the concept of isolating immobilized fuel waste by deep underground disposal in plutonic rock. The major scientific and engineering components of the program, namely immobilization studies, geoscience research, and environmental and safety assessment, are well established
Harris, Gregory E.
Teacher stress is a significant issue facing the teaching profession. The current paper explores individual stress management as a viable option to address stress in this profession. Specifically, Canadian teacher education programs are examined to identify the prevalence of pre-service teacher education courses focused on individual stress…
This paper summarizes the performance and operating experience of CANDU fuel in Canadian CANDU reactors in 1999 and 2000. The extremely low rate of fuel defects continues to demonstrate that CANDU fuel is performing exceptionally well. Over the 2-year period, the fuel bundle defect rate for all bundles irradiated in Canadian CANDU reactors has remained very low, between 0.011% (suspected defects) and 0.007% (confirmed defects). On a fuel element basis, this represents a rate of confirmed defects of about 0.0002%; this rate is approaching 2 defects per million fuel elements! This successful performance is the result of a number of contributing factors, including a simple and robust fuel design with conservative design margins, reliable and specialized manufacturing processes that have been developed over the years, and fuel operations that conform to the fuel operating limits. Strong linkages between plant operation, designers, and Canadian fuel research and development programs also contribute to the high performance of the current CANDU fuel. The Fuel Design and Performance program, funded by the CANDU Owners Group, addresses licensing and operational issues that are common to the Canadian CANDU utilities. In addition, AECL's Fuel and Fuel Cycles working group directs R and D to support evolutionary improvements to the fuel products, as well as longer-term R and D for advanced fuel concepts. This paper describes the development programs in 1999/2000. (author)
This paper summarizes the performance and operating experience of CANDU fuel in Canadian CANDU reactors in 1999 and 2000. The extremely low rate of fuel defects continues to demonstrate that CANDU fuel is performing exceptionally well. Over the 2-year period, the fuel bundle defect rate for all bundles irradiated in Canadian CANDU reactors has remained very low, between 0.011% (suspected defects) and 0.007% (confirmed defects). On a fuel element basis, this represents a rate of confirmed defects of about 0.0002%; this rate is approaching 2 defects per million fuel elements. This successful performance is the result of a number of contributing factors, including a simple and robust fuel design with conservative design margins, reliable and specialized manufacturing processes that have been developed over the years, and fuel operations that conform to the fuel operating limits. Strong linkages between plant operation, designers, and Canadian fuel research and development programs also contribute to the high performance of the current CANDU fuel. The Fuel Design and Performance program, funded by the CANDU Owners Group, addresses licensing and operational issues that are common to the Canadian CANDU utilities. In addition, AECL's Fuel and Fuel Cycles working group directs R and D to support evolutionary improvements to the fuel products, as well as long-term R and D for advanced fuel concepts. This paper describes the development programs in 1999/2000. (author)
Full text: The Canadian Safeguards Support Program (CSSP) is one of the first safeguards support programs with an overall objective to assist the IAEA by providing technical assistance and other resources and by developing equipment to improve the effectiveness of international safeguards. This paper provides a brief discussion of the evolution of the CSSP, from the beginning when the program was under joint management between the Atomic Energy Control Board (AECB) and Atomic Energy of Canada Limited (AECL), a Canadian crown corporation, until recent years when the AECB became responsible for all projects and financial management. Recently, new legislation came into force and the AECB became the Canadian Nuclear Safety Commission (CNSC). However, the mandate and management of the CSSP under the CNSC remain fundamentally unchanged. Major CSSP activities are devoted to the following areas: (a) Human resource assistance through the provision of cost-free experts (CFEs) to the IAEA; (b) Training of IAEA inspectors and facility operators, development of training resources and integrated approaches for training; (c) System studies, e.g. the development of integrated safeguards approach for CANDU reactors, geological repository, and physical model; (d) Equipment development, e.g. the VXI Integrated Fuel Monitor, Digital Cerenkov Viewing Device, seals, remote monitoring, encryption and authentication; (e) Information technology which includes satellite imagery, Geographical Information System (GIS), and position tracking of spent fuel containers. The CSSP has continued to evolve during the past 25 years. Although formerly larger the CSSP budget has settled to a stable level of just slightly above (Canadian) $2M. Leveraging of the CSSP budget through collaborations with several Member State Support Programs and Canadian government departments has provided mutual benefits for all parties involved and useful results that have been put into practical use by the IAEA. (author)
This report is the sixth in the series of annual reports on the research and development program for the safe management and disposal of Canada's nuclear fuel waste. The report summarizes progress in 1984 for the following activities: storage and transportation of used fuel, immobilization of nuclear fuel waste, geotechnical research, environmental research, and environmental and safety assessment. 186 refs
This report, the fifth of a series of annual reports, reviews the progress that has been made in the research and development program for the safe management and disposal of Canada's nuclear fuel waste. The report summarizes activities over the past year in the following areas: public interaction; used fuel storage and transportation; immobilization of used fuel and fuel recycle waste; geoscience research related to deep underground disposal; environmental research; and environmental and safety assessment
David Ryan Stather; Julie Jarand; Silvestri, Gerard A.; Alain Tremblay
BACKGROUND: In recent years, there has been a rapid growth in diagnostic and therapeutic procedures performed by respirologists.OBJECTIVES: To assess the number and type of procedures performed in Canadian respirology training programs, for comparison with the American College of Chest Physicians minimum competency guidelines, and to assess fellow satisfaction with procedural training during their fellowships.METHODS: Internet-based surveys of Canadian respirology fellows and respirology fell...
This paper describes the CANDU fuel development activities in Canada during 1997 through 1998. The activities include those of the Fuel Technology Program sponsored by the CANDU Owners Group. The goal of the Fuel Technology Program is to maintain and improve the reliability, economics and safety of CANDU fuel in operating reactors. These activities, therefore, concentrate on the present designs of 28-element and 37-element fuel bundles. The Canadian fuel development activities also include those of the Advanced Fuel and Fuel Cycle Technology Program at AECL. These activities concentrate on the development of advanced fuel designs and advanced fuel cycles, which among other advantages, can reduce the capital and fuelling costs, maintain operating margins in aging reactors, improve natural-uranium utilization, and reduce the amount of spent fuel. (author)
Drefs, Michelle A.; Schroeder, Meadow; Hiebert, Bryan; Panayotidis, E. Lisa; Winters, Katherine; Kerr, Jamie
This article presents a brief historical review and survey of the current landscape of online graduate psychology programs within the Canadian context. Specific focus is given to outlining the establishment and evolution of the first Canadian online professional specialization program in school psychology. The article argues that given the virtual…
Leung, S. [Canadian Coast Guard, Ottawa, ON (Canada)
In the early 1980`s the Canadian Coast Guard began a solarization program to power its navigation aids in an effort to eliminate the use of primary batteries and to cut the cost and environmental impact of expensive diesel generators. Currently, the replacement of batteries is just about complete. Over 5,500 navigational aids run on solar power. The power output ranges from 10 watts to 2,400 watts. 99 per cent of the solar systems are stand-alone photovoltaic systems with an average output capacity of 40 watts. The solar systems have operated satisfactorily under cold climate conditions. It was estimated that the Coast Guard has saved tens of millions of dollars through this conversion effort. 2 figs.
McCall, M. A.; Sorbie, J.
OBJECTIVE: To identify which women's health issues are taught in the 2-year core curriculum of Canadian family medicine residency programs and whether educators think their current teaching of women's health is adequate. DESIGN: Mailed survey using a questionnaire. PARTICIPANTS: All program and unit directors of the 16 Canadian family medicine residency training programs were surveyed. Replies were received from 63% (10 of 16) of program directors and 79% (55 of 70) of unit directors. MAIN OU...
Bradley, Nori L.; Bazzerelli, Amy; Lim, Jenny; Ying, Valerie Wu Chao; Steigerwald, Sarah; Strickland, Matt
Currently, general surgeons provide about 50% of endoscopy services across Canada and an even greater proportion outside large urban centres. It is essential that endoscopy remain a core component of general surgery practice and a core competency of general surgery residency training. The Canadian Association of General Surgeons Residents Committee supports the position that quality endoscopy training for all Canadian general surgery residents is in the best interest of the Canadian public. H...
The volume of business available to Canadian manufacturers of CANDU power plant and heavy water plant components is analyzed over about the next 10 years. Implications of exported nuclear technology and plants are explored. (E.C.B.)
This document describes the administrative structure and major research and development components of the Canadian Nuclear Fuel Waste Management Program. It outlines the participating organizations, summarizes the program statistics, and describes the international cooperation and external review aspects of the program
In 2006, Atomic Energy of Canada Limited (AECL) and Natural Resources Canada (NRCan) began implementing a $7B CDN, 70-year Nuclear Legacy Liabilities Program (NLLP) to deal with legacy decommissioning and environmental issues at AECL nuclear sites. The objective of the NLLP is to safely and cost-effectively reduce the nuclear legacy liabilities and associated risks based on sound waste management and environmental principles in the best interest of Canadians. The liabilities include shutdown research and prototype power reactors, fuel handling facilities, radiochemical laboratories, support buildings, radioactive waste storage facilities, and contaminated lands at several sites located across eastern Canada from Quebec to Manitoba. The largest site, Chalk River Laboratories (CRL) in Ontario, will continue as an operational nuclear site for the foreseeable future. Planning and delivery of the Program is managed by the Liability Management Unit (LMU), a group that was formed within AECL for the purpose. The composition and progress of the NLLP has been reported in recent conferences. The NLLP comprises a number of interlinked decommissioning, waste management and environmental restoration activities that are being executed at different sites, and by various technical groups as suppliers to the LMU. Many lessons about planning and executing such a large, diverse Program have been learned in planning the initial five-year 'start-up' phase (which will conclude 2011 March), in planning the five-year second phase (which is currently being finalized), and in planning individual and interacting activities within the Program. The activities to be undertaken in the start-up phase were planned by a small group of AECL technical experts using the currently available information on the liabilities. Progress in executing the Program was slower than anticipated due to less than ideal alignment between some planned technical solutions and the actual requirements, as well as the
Purpose: To develop a non-invasive method for detection of acetabular cup migration after total hip arthroplasty (THA) with a higher degree of accuracy than routine plain radiography. Material and Methods: Two CT examinations, 10 min apart, were obtained from each of 10 patients that had undergone THA. Using an in-house developed semiautomated program for volume merging, the pelves in the two examinations were fused and the acetabular cup was visually and numerically evaluated to test the method's accuracy in detecting migration. Results: In the visual evaluation of the best match a 1-mm translation of the cup was detectable. The numerical evaluation, comparing landmarks placed in the images of the acetabular cup and the head of the femur component in the two examinations, showed the mean difference in orientation of acetabular axes to be 2.5 deg, the mean distance between centre of cup face to be 2.5 mm and the mean distance between centre of the head of the prosthetic femoral component to be 1 mm. Conclusion: This method has a significantly higher accuracy than routine plain radiography in detecting acetabular cup migration and could be used in clinical practice. It gives both a visual and a numerical correlate to migration
Full Text Available Abstract Background Total knee arthroplasty (TKA is a commonly performed surgical procedure in the US. It is important to have a comprehensive inpatient TKA program which maximizes outcomes while minimizing adverse events. The purpose of this study was to describe a TKA program – the Joint Replacement Program (JRP – and report post-surgical outcomes. Methods 74 candidates for a primary TKA were enrolled in the JRP. The JRP was designed to minimize complications and optimize patient-centered outcomes using a team approach including the patient, patient's family, and a multidisciplinary team of health professionals. The JRP consisted of a pre-operative class, standard pathways for medical care, comprehensive peri-operative pain management, aggressive physical therapy (PT, and proactive discharge planning. Measures included functional tests, knee range of motion (ROM, and medical record abstraction of patient demographics, length of stay, discharge disposition, and complications over a 6-month follow-up period. Results All patients achieved medical criteria for hospital discharge. The patients achieved the knee flexion ROM goal of 90° (91.7 ± 5.4°, but did not achieve the knee extension ROM goal of 0° (2.4 ± 2.6°. The length of hospital stay was two days for 53% of the patients, with 39% and 7% discharged in three and four days, respectively. All but three patients were discharged home with functional independence. 68% of these received outpatient physical therapy compared with 32% who received home physical therapy immediately after discharge. Two patients ( Conclusion The comprehensive JRP for TKA was associated with satisfactory clinical outcomes, short lengths of stay, a high percentage of patients discharged home with outpatient PT, and minimal complications. This JRP may represent an efficient, effective and safe protocol for providing care after a TKA.
Taylor, Jeff; Joubert,Ray
Jeff Gordon Taylor,1 Ray Joubert,2 1College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, 2Saskatchewan College of Pharmacy Professionals, Regina, SK, Canada Abstract: Pharmacists have a long history of helping Canadians with minor ailments. This often has involved management with over-the-counter medications. If pharmacists felt that the best care required something more robust, they would refer the patient to a physician. In hopes of improving the care of such ailments, ...
Institutional repositories (IRs) are one of the major planks in the strategy for achieving open access. In 2002, the Canadian Association of Research Libraries launched an institutional repository project to support their members in implementing IRs. Kathleen Shearer provides an overview of the project and discuss the opportunities and challenges for research libraries in supporting the open access movement. Context: Members of the CLA Task Force on Open Access, the Scholarly Publishing an...
Fox, Janna; Cheng, Liying; Zumbo, Bruno D.
Few studies have investigated the impact of English language programs on second language (L2) students studying in Canadian universities (Cheng & Fox, 2008; Fox, 2005, 2009). This article reports on questionnaire responses of 641 L2 students studying in 36 English language programs in 26 Canadian universities. The researchers identified…
Mahood, S.; Zagozeski, C.; Bradel, T.; Lawrence, K
OBJECTIVE: To determine whether family medicine residency training programs have formal policies regarding interactions between residents and the pharmaceutical industry, to identify existing practices, and to find out what issues in industry-physician interaction are addressed during the 2-year core curriculum training in Canada. DESIGN: Mailed survey using a questionnaire. SETTING: The 16 Canadian residency training programs in family medicine. PARTICIPANTS: Program directors of all 16 Cana...
Tyagi, Rajesh K; Cook, Lori; Olson, John; Belohlav, James
Background Healthcare technology and quality improvement programs have been identified as a means to influence healthcare costs and healthcare quality in Canada. This study seeks to identify whether the ability to implement healthcare technology by a hospital was related to usage of quality improvement programs within the hospital and whether the culture within a hospital plays a role in the adoption of quality improvement programs. Methods A cross-sectional study of Canadian hospitals was co...
Donato, Emily; Lightfoot, Nancy; Carter, Lorraine; MacEwan, Leigh
In 2010, the Canadian Association of Schools of Nursing, the accrediting body for nursing programs in Canada, became part of the Accreditation of Interprofessional Health Education initiative. In turn, interprofessional education (IPE) is now a requirement in nursing curricula. Although the requirement is formally in place, how it is achieved…
Hebert, Marilynne; Lau, Francis
Eight Canadian universities partnered to establish a Collaborative Health Informatics PhD/Postdoc Strategic Training Program (CHPSTP). The 6-year goal was to increase research capacity in health informatics in Canada. Three cohorts of 20 trainees participated in the training, which included online Research Learning Experiences, annual face-to-face…
Since the introduction of the 1999 Canadian Cabinet Directive on the environmental assessment of policies, plans, and programs (PPPs), higher-order environmental assessment has been receiving increased attention in Canada. However, while practices and systems are advancing at the federal level, there has been very little attention given to recent developments in PPP assessment at the provincial level. This paper presents the results of a Canada-wide survey of PPP assessment principles and practices in 10 Canadian provincial EA jurisdictions. The findings indicate that there exists considerable variability in the provisions for and practice of PPP assessment amongst Canadian provinces, with only Saskatchewan, Ontario, and Quebec identifying recent practice experience. Included amongst the main barriers to effective implementation at the provincial level are the lack of legislative requirements for strategic EA, and the limited understanding of the nature and benefits of higher-order impact assessment
Existing alternative transportation programs and initiatives in Canada were presented as part of an effort to achieve the Canada-Wide Standards on Particulate Matter and Ground-level Ozone. This document is intended for employers that could implement support services in their workplace that promote methods of commuting that reduce vehicle kilometers traveled and encourage alternative transportation to the single occupant vehicle with the objective or reducing particulate matter and ground-level ozone. Alternative transportation programs such as employers programs, youth programs and institutional programs have environmental, economic, social and community benefits such as reduced emissions and greater transportation efficiency which lead to improved quality of life, health and sustainability of the transportation system. Organizations implement alternative transportation programs because of a commitment to; environmental responsibility, improving air quality, offering employee benefits, GHG reductions and corporate leadership. The programs are often initiated by large urban centres experiencing transportation-related problems such as congestion, air pollution or infrastructure capacity constraints. The U-Pass was presented as example of a very successful program that promotes change in behaviour at institutions to increase transit ridership. Telework also offers the opportunity of eliminating commutes. Ridematching is another key marketing tool employed by many organizations. The most successful programs are those with the greatest financial resources because sustained funding is necessary for program delivery, expansion and community acceptance. refs., tabs., figs.
Kates, Nick; Toews, John; Leichner, Pierre
Family physicians may spend up to 50% of their time diagnosing and managing mental disorders and emotional problems, but this is not always reflected in the training they receive. This study of the teaching of psychiatry in the 16 family medicine residency programs in Canada showed that although the majority of program directors are reasonably satisfied with the current training, they see room for improvement—particularly in finding psychiatrists with a better understanding of family practice...
Full Text Available Abdulaziz Al-Ahaideb,1 Hamza M Alrabai,1 Osama A Alrehaili,1 Abdulaziz N Aljurayyan,1 Ranyah M Alsaif,2 Nizar Algarni,1 Hazem M Al-Khawashki,1 Abdulrahman D Algarni1 1Department of Orthopedics, 2Department of Physiotherapy, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia Objective: The primary aim of the present study was to assess the quality of the Saudi Orthopedic Residency Program. Methodology: As a comparator, a cross-sectional survey involving 76 Saudi residents from different training centers in Saudi Arabia namely; Riyadh, Jeddah, Medina, Abha, and Dammam and 15 Canadian. Results: The results showed that Canadian residents read more peer-reviewed, scholarly articles compared with Saudi residents (P=0.002. The primary surgical role for residents was to hold retractors during surgery. The survey respondents strongly supported the ability to recommend removal of incompetent trainers. Saudi trainees were more apprehensive of examinations than Canadian trainees (P<0.0001. Most residents preferred studying multiple-choice questions before examinations. Saudi and Canadian participants considered their programs to be overcrowded. Unlike Canadian participants, Saudi trainees reported an inadequate level of training (P<0.0001. Conclusion: Educational resources should be readily accessible and a mentorship system monitoring residents' progress should be developed. The role of the resident must be clearly defined and resident feedback should not be ignored. Given the importance of mastering basic orthopedic operative skills for residents, meaningful remedial action should be taken with incompetent trainers. Keywords: evaluation, medical education, orthopedic board, residency program, training
The Canadian Nuclear Fuel Waste Management Program involves research into the storage and transportation of used nuclear fuel, immobilization of fuel waste, and deep geological disposal of the immobilized waste. The program is now in the fifth year of a ten-year generic research and development phase. The objective of this phase of the program is to assess the safety and environmental aspects of the deep underground disposal of immobilized fuel waste in plutonic rock. The objectives of the research for each component of the program and the progress made to the end of 1984 are described in this report. 74 refs
Atomic Energy of Canada Limited (AECL) has developed a concept for permanent geological disposal of nuclear fuel waste in Canada. An accelerated program was initiated in 1991 to address and quantify the potential effects of microbial action on the integrity of the disposal concept's multiple barrier system. This microbial program focuses on answering specific questions in areas such as the survival of bacteria in compacted clay-based buffer materials under relevant radiation and desiccation conditions; mobility of microbes in compacted buffer materials; the potential for microbially-influenced corrosion of containers; microbial gas production in backfill material; introduction of nutrients as a result of vault excavation and operation; the presence and activity of microbes in deep granitic groundwaters; and the effects of biofilms on radionuclide migration in the geosphere. This paper summarizes the current research activities at AECL in these areas. (author)
Chemistry program is one of the essential programs for the safe operation of a nuclear power plant. It helps to ensure the necessary integrity, reliability and availability of plant structures, systems and components important to safety. Additionally, the program plays an important role in asset preservation, limiting radiation exposure and environmental protection. A good chemistry program will minimize corrosion of materials, reduce activation products, minimize of the buildup of radioactive material leading to occupational radiation exposure and it helps limit the release of chemicals and radioactive materials to the environment. The legal basis for the chemistry oversight at Canadian NPPs is established by the Nuclear Safety and Control Act and its associated regulations. It draws on the Canadian Nuclear Safety Commission's regulatory framework and NPP operating license conditions that include applicable standards such as CAN/CSA N286-05 Management System Requirements for Nuclear Power Plants. This paper focuses on the regulatory oversight strategy used in Canada to assess the performance of chemistry program at the nuclear power plants (NPPs) licensed by CNSC. The strategy consists of a combination of inspection and performance monitoring activities. The activities are further supported from information gathered through staff inspections of cross-cutting areas such as maintenance, corrective-action follow-ups, event reviews and safety related performance indicators. (authors)
Full Text Available Abstract Background At a time of increased need and demand for general internists in Canada, the attractiveness of generalist careers (including general internal medicine, GIM has been falling as evidenced by the low number of residents choosing this specialty. One hypothesis for the lack of interest in a generalist career is lack of comfort with the skills needed to practice after training, and the mismatch between the tertiary care, inpatient training environment and "real life". This project was designed to determine perceived effectiveness of training for 10 years of graduates of Canadian GIM programs to assist in the development of curriculum and objectives for general internists that will meet the needs of graduates and ultimately society. Methods Mailed survey designed to explore perceived importance of training for and preparation for various aspects of Canadian GIM practice. After extensive piloting of the survey, including a pilot survey of two universities to improve the questionnaire, all graduates of the 16 universities over the previous ten years were surveyed. Results Gaps (difference between importance and preparation were demonstrated in many of the CanMEDS 2000/2005® competencies. Medical problems of pregnancy, perioperative care, pain management, chronic care, ambulatory care and community GIM rotations were the medical expert areas with the largest gaps. Exposure to procedural skills was perceived to be lacking. Some procedural skills valued as important for current GIM trainees and performed frequently (example ambulatory ECG interpretation had low preparation ratings by trainees. Other areas of perceived discrepancy between training and practice included: manager role (set up of an office, health advocate (counseling for prevention, for example smoking cessation, and professional (end of life issues, ethics. Conclusion Graduates of Canadian GIM training programs over the last ten years have identified perceived gaps
Howman, Cynthia Joan
In Canada, there are currently no graduate level programs which have as a main focus the study of Student Affairs Administration. Student Affairs leaders at Canadian colleges and universities come from a wide variety of academic and career backgrounds. The purpose of this quantitative study was three fold; to gather detailed demographic information describing the current cohort of Canadian student affairs leaders, to determine, to what extent, these leaders were aware of the Council for Advan...
In December of 1983, Systemhouse Ltd. was awarded a contract to collect data relevant to the Canadian National Uranium Tailings Program and to convert it into a machine readable format. The work was carried out in four phases, namely, data identification, data collection, data transcription/conversion and data verification. The main priority was to identify as much relevant data as possible. The identified data was priorized against a predefined criteria established in conjunction with the project scientific authority. A total of 428 studies were identified as being relevant. Data from 19 of these were converted to machine-readable format, giving information on 2398 samples from 78 boreholes
A partnership between the Canada Centre for Mineral and Energy Technology (CANMET) Energy Technology Centre (CETC) of Natural Resources Canada (NRCan), and the Canadian coal and steel industries, the Canadian Carbonization Research Association (CCRA) which conducts research and development activities with its partners. This document summarizes the economic and environmental impacts of the research and development program administered by the CCRA. More than 25 research programs have been undertaken by the CCRA since it was established in 1964. The activities dealt with specific technical challenges which the Canadian coal industry faced with regard to the production and marketing of metallurgical coal, as well as the uses of coal and alternative fuels such as natural gas to make coke used in blast furnaces. The report detailed the scope of CETC's energy for high temperature processes, then addressed program resources and study methodology. Three categories of impacts were discussed: general-level impacts, economic and environmental impacts, and quantitative estimates of economic impacts. The attribution of impacts was examined and future directions were examined in the last section of the report. It was determined that CETC participation in the research program is still required, due to the fact that it is Canada's only technical support available to the Canadian coking coal industry. The survival of Canadian coal producers owes something to the economic impacts derived from the CCRA under the current decreasing metallurgical coal prices conditions. 2 tabs
The Canadian program for the development and evaluation of processes and technology for the separation and containment of radioactive species in off-gases is directed towards the following specific aspects: 1) assessment of available treatment technology and evaluation of future clean-up requirements; 2) development and engineering evaluation, under realistic conditions, of promising new processes that would be inherently simpler and safer; and 3) specification of off-gas emission control systems for future nuclear facilities based on the most favourable technology. The program is being carried out by Atomic Energy of Canada Limited in collaboration with the electrical utility, Ontario Hydro, and selected Canadian universities. A brief description is presented of methods for removing tritium and carbon-14 from the moderator systems of CANDU power reactors, methods for removing iodine from the off-gases of a molybdenum-99 production facility at the Chalk River Nuclear Laboratories, and procedures for monitoring the off-gas effluent composition in the Thorium Fuel Reprocessing Experiment (TFRE) facility at the Whiteshell Nuclear Research Establishment
The window and door industry in North America have a strong interest in harmonizing US and Canadian rating procedures and standards for predicting the thermal performance of their products. The costs and time associated with complying with the requirements in both countries are significant and could be reduced through reciprocity. The purpose of this paper is to compare the US and Canadian rating programs. Joint efforts between the US and Canada can use this information to focus on reconciling the differences and to work towards reciprocity. The following identifies the applicable procedures and standards for both countries, and summarizes the major differences in the products that are covered, the sizes that are used, the U-factor and solar heat gain coefficient calculational and test methods, air leakage measurement, prediction of annual energy use, condensation resistance methods, reporting requirements, and accreditation and certification programs. The major differences between the system s are identified and recommendations are made to achieve reciprocity. The appendix contains a paper that is a synopsis of the findings from this study.
The Canadian Space Station User Development Program (UDP), formally approved in March 1986, is gradually approaching maturity. As a result of limited funding, it is also approaching saturation. The remaining UDP budget is $60 million and there are no funds to build space-qualified hardware. Successful microgravity experiments in aircraft have shown that 20 seconds of microgravity are adequate for doing useful science in most cases. Spinoffs have already occurred through applications of patents for processes discovered during microgravity related work. A number of unsuccessful attempts have been made to establish drop-tube test facilities in Canada, and efforts are being made within UDP to acquire first-hand knowledge of such facilities through cooperative programs with other countries. A microgravity rocket was scheduled for a fall 1991 launch but enough experiments may not be found. The CANEX 2 flight on the space shuttle is already fully subscribed, and Canadian scientists are slowly beginning to get aboard the shuttle as co-investigators. It has been decided to book one locker on the October 1993 SPACEHAB flight. Over the long term, the high costs of participating in the space station are of concern. It is recommended that the UDP continue with its microgravity work but only use the space station on an as-required basis.
Purpose: Validation of a non-invasive CT method for detection of acetabular cup migration after total hip arthroplasty in a phantom study. Material and Methods: 26 CT examinations were obtained of a pelvic model while altering the position of the acetabular cup. Using a previously described program for volume merging, the pelvi in different examinations were fused and the 3D alterations of the position of the acetabular cup were evaluated visually and numerically and correlated to direct measurements on the model. Results: Visually, two independent examiners differentiated between 0, 1 and 2 to 3 mm migration with 100% specificity and sensitivity. Numerically, the mean error over all cases between model and CT measurements was 0.04 mm (SD ± 0.33). The mean absolute error between model and CT data was 0.26 mm (SD ± 0.19). Intra- and interobserver 95% accuracy and repeatability limits were below 0.5/0.7 mm, respectively. No significant interobserver difference occurred. The data were normally distributed and not dependent on observer. Conclusion: The accuracy of this non-invasive method out-performs routine plain radiography. The method gives both visual and numerical correlates to migration and can be used in clinical practice
Marina Fernández, Rosa; Ginés Mateos, Gracia; Arco Pérez, Ma Carmen; Nuevo Gayoso, Montse; Faura Vendrell, Teresa
Total knee arthroplasty (TKA) is a surgery consisting on the artificial joint replacement, due to a traumatic injury or a degenerative process or arthrosis. This surgery causes an important pain to patients, and sometimes affects negatively on their recovery. The choice of the prostheses will depend on the anatomical features of the patient and the surgeon criterion. The concept of a "rapid recovery surgery" was introduced in 1997 by Khelet and meant the beginning of the Fast Track model or the Rapid Recovery (RR) linked to an accelerated rehabilitation, an early discharge and the optimization of all the aspects of pre, intra and post-operative patient experience. Fast recovery is a surgical process which aims to achieve maximum autonomy of the patient through education, pain control and early mobilization. The key of the rapid recovery is to get the involvement of the patient thanks to the empowerment, which means a preoperative patient education that will help to reduce anxiety and it will make easier to engage in their own recovery. Furthermore the patient will take part of an effective post-operative physical therapy, using all the necessary tools to increase their ability to manage their own health problems. The empowerment of these patients is part of the Nursing Model in the Hospital Clinic de Barcelona (HCB), adopted by the Nursing Management in December of 2012. In Catalonia, until the start of the RR surgery, 14,132 interventions in 2008 where done by TKA conventional surgery, needing subsequent conventional hospitalization. This article describes the care and outcomes of nurse interventions, defined in the RR of TKA clinical way, which is focused on the pain's minimization and the impact on patients' mobilization. It was performed in a monographic unit from a tertiary-level hospital in Barcelona in 2013. PMID:26591937
A review is presented of results of the Canadian Climate Impacts Program series of studies examining the socio-economic impacts of climate change. In the Great Lakes basin, climate change may impact on numerous economic sectors. Lower lake levels could result in increased dredging of ports and channels or reduced cargo loads. Lower lake levels added to increased use of water could result in a loss of 4,165 GWh of power generation for the Canadian hydro-electric generating stations on the Great Lakes. A warmer climate may lead to crop failures in the agricultural heartlands of Ontario, as the advantages of higher temperature may be offset by moisture stress. The downhill ski industry may be decimated in southern Ontario. Rising sea levels may cause increased risk of storm surges and river flooding in the coastal areas of Canada. A warmer climate would probably be beneficial to aquaculture and allow longer inshore fishing seasons. Costs to oil and gas exploration due to sea ice and icebergs would be practically eliminated. Results for the Praire provinces were mixed: one study concluded that impacts would be minimal while another predicted a moderate reduction in spring wheat potential. 24 refs., 1 fig
Corby, Lynda; Murphy, Peggy
A questionnaire was mailed to all 62 unit and program directors of Canadian family practice residency programs to elicit details about the status of nutrition education. Although most respondents indicated that the registered dietitian was the primary person responsible for teaching nutrition, this responsibility comprised only 10% of the dietitian's time in most programs. Lack of funding and curriculum time were the most common reasons cited for the limited scheduling that the dietitian was ...
Maintaining adequate safety and reliability of nuclear power plants and nuclear power plant life assurance and life extension are growing in importance as nuclear plants get older. Age-related degradation of plant components is complex and not fully understood. This paper provides an overview of the Canadian approach and the main activities and their results towards understanding and managing age-related degradation of nuclear power plant components, structures and systems. A number of pro-active programs have been initiated to anticipate, detect and mitigate potential aging degradation at an early stage before any serious impact on plant safety and reliability. These programs include Operational Safety Management Program, Nuclear Plant Life Assurance Program, systematic plant condition assessment, refurbishment and upgrading, post-service examination and testing, equipment qualification, research and development, and participation in the IAEA programs on safety aspects of nuclear power plant aging and life extension. A regulatory policy on nuclear power plants is under development and will be based on the domestic as well as foreign and international studies and experience
Canada currently has 18 CANDU Pressurized Heavy Water Reactors in operation and 4 under construction, for an installed nuclear capacity of 15,500 MWe. Most of the reactors are in the province of Ontario where 50% of the electricity is nuclear generated. Atomic Energy of Canada is developing the CANDU-3, a 450 MWe reactor incorporating the latest available technologies, including distributed control. The three Canadian Utilities with CANDU reactors have made a major commitment to full-scope training simulators. In Canada there is a growing commitment to developing major improvements to the interface between the control systems, the field equipment and the operating staff. The development program underway makes extensive use of information technology, particularly expert systems and interactive media tools. Out of this will come an advanced CANDU control concept that should further improve the reliability and availability of CANDU stations. (author). 3 refs
Full Text Available ... you're talking about an arthroplasty, their pain relief is fairly rapid and early on. And the ... body and the arm, and have better pain relief. So, with the arthroplasty, it tends to be ...
RENEL (Romania Power Authority), the co-ordinator of Romanian Nuclear Program, have decided to improve, starting 1990 the existing capability to produce CANDU nuclear fuel at FCN Pitesti. The objective of the program was defined with AAC (AECL - ANSALDO Consortium) for the qualification of FCN fuel plant according to Canadian Z299.2 standard. The Qualification Program was performed under AAC Work Order C-003. The co-ordination was assumed by AECL, as overall Design Authority. ZPI (Zircatec Precision Industries Inc., Canada), were designated to supply technical assistance, equipments and know how where necessary. After a preliminary verification of the FCN fuel plant, including the processes and system investigation, performed under AECL and ZPI assistance, the Qualification Program was defined in all details. The upgrading of documentation on all aspects required by Z299.2 was performed. Few processes needed to be reconsidered and equipment was delivered by ZPI or other suppliers. This includes mainly welding equipments and special inspection equipments. Health Physics was practically fully reconsidered. New equipment and practice were adapted to provide adequate control on health conditions. Every manufacturing and inspection process was checked to determine their performance during a Qualification Run based on acceptance criteria which have been established in the Qualification Plan. Manufacturing Demonstration Run was an important step to prove that all plant functions have been accomplished during the fabrication of 200 fuel bundles. These bundles have been fully accepted and 66 of them have been loaded in the first charge of Unit 1 Cemavoda NPS. The surveillance and audit actions made by AECL and ZPI during this period confirmed the FCN capability to operate an adequate system meeting the to required quality assurance standard. The very open attitude of AECL, Zircatec and FCN staff have stimulated the progress of the project and a successful achievement of the
The paper reviews the current state of nuclear engineering postgraduate education in Canada, with emphasis on the new courses and programs that have been introduced since PBNC2006. The importance of these developments is presented against a background of the aging of the reactor fleet that came into operation in the 1970s, 1980s and early 1990s, along with the changing training needs and demographics of the nuclear industry. The demand for nuclear engineers continues to grow in order to operate, maintain, upgrade and refurbish the existing units, as well as to design, construct, commission and operate the new reactors that are being proposed in Canada and abroad. Responding to this demand, a consortium of key Canadian nuclear companies, and universities that conduct research and offer postgraduate courses in nuclear engineering, have formed UNENE (University Network of Excellence in Nuclear Engineering). In addition to funding research chairs at seven universities in Ontario, UNENE offers a course-based master of nuclear engineering program. In this way, industry funding has effectively revitalized existing, and initiated new, nuclear programs at established universities. In addition, one of the UNENE partners, the newly established University of Ontario Institute of Technology (UOIT), is offering both research and course-based master of nuclear engineering programs as of September 2008. Based on the experiences of UNENE and UOIT the paper explores the gap between the mandates of universities and the nuclear industry, collectively and individually. It is shown that by recognizing the differences and capitalizing on their respective strength, the graduate and postgraduate educational programs conducted by universities can be effective to complement the training and experience that only the industry can offer. (author)
The Canadian Nuclear Safety Commission (CNSC) is the principal nuclear regulator in Canada. The CNSC is empowered through the Nuclear Safety and Control Act (NSCA) and its associated regulations, to regulate the entire nuclear cycle which includes: uranium mining and milling, uranium refining and processing, fuel fabrication, power generation and nuclear waste management. A CNSC uranium mine licence is required by a proponent to site, prepare, construct, operate, decommission and abandon this nuclear facility. The CNSC licence is the legal instrument that authorizes the regulated activities and incorporates conditions and regulatory controls. Following a favourable Commission Tribunal decision to issue a licence to authorize the licensed activities, CNSC develops and executes a compliance plan of the licensee’s programs and procedures. The CNSC compliance plan is risk-informed and applies its resources to the identified higher risk areas. The compliance program is designed to encourage compliance by integrating three components: promotion, verification and enforcement and articulates the CNSC expectations to attain and maintain compliance with its regulatory requirements. The licensee performance is assessed through compliance activities and reported to the Commission to inform the licensing process during licence renewal. The application of the ongoing compliance assessment and risk management model ensures that deviations from impact predictions are addressed in a timely manner. The Uranium Mines and Mills Division of the CNSC are preparing to meet the challenges of the planned expansion of their Canadian uranium mining industry. The presentation will discuss these challenges and the measures required to address them. The Uranium Mines and Mills Division (UMMD) have adopted a structured compliance framework which includes formal procedures to conduct site inspections. New UMMD staff are trained to apply the regulations to licensed sites and to manage non
Tianwei E. Zhou
Full Text Available On June 18, 2015, the Canadian Institutes of Health Research (CIHR announced that it would terminate funding to M.D.-Ph.D. programs due to budget constraints, against the recommendations from two advisory panels. CIHR’s M.D.-Ph.D. program grants, which amounted to an annual average of $1.8 million in the form of 14 six-year studentships, represent only 0.15% of CIHR’s $1.2 billion operating budget. As over half of M.D.-Ph.D. trainees are dependent on these studentships, this poses a threat to physician-scientist training in Canada. In response to the current volatile funding climate, we surveyed McGill University’s M.D.-Ph.D. program alumni to assess its success in producing physician-scientists. In this program, 60.0% of graduates who have completed training have become physician-scientists, the majority being retained in Canada. These individuals have attained positions with sufficiently protected time for research and had grant success and significant publications for early- to mid-career investigators. This suggests that the current M.D.-Ph.D. system is an effective way of producing competent physician-scientists. As physician-scientists have remarkably contributed to Canadian healthcare innovation despite making up a fraction of physicians and researchers, vulnerability in the M.D.-Ph.D. pipeline would invariably affect the health of Canadians.
This annual report provides a comprehensive review of the Canadian electricity industry's environmental performance in 2001. In 1997 the Canadian Electricity Association launched the Environmental Commitment and Responsibility (ECR) Program which is based on individual initiatives of member utilities. The program is designed to address the industry's commitment to sustainable development and better environmental performance. This annual report focuses on air quality issues for the electricity industry with emphasis on energy efficiency and the challenge of climate change. Member utilities are developing and deploying alternative energy technologies, such as wind, solar, ground source heat pumps, and small run of river hydro electric power. These sources are becoming more cost competitive and have potentially less impact on the environment. The industry is also enhancing the many different fuel types available throughout Canada. Environmental performance highlights and trends for the year 2001 were also presented for each member utility. tabs., figs
The present Canadian nuclear power program based on the CANDU-PHW reactor, future commitments, and the status of heavy water production, are discussed, together with short term prospects over the next 20 years. The longer term favours fuels with higher fissile content than natural uranium. Possible future strategies are discussed, which include consideration of a number of different fuel cycles for the different types of CANDU reactor, i.e. CANDU-PHW, CANDU-BLW, CANDU-PLW and CANDU-OCR. It is concluded that: CANDU-PHW reactor is fully reliable and competative; organic and boiling water cooled variations promise savings of 15 to 20% in both capital and unit energy costs; the CANDU concept offers the opportunity for large improvements in uranium conservation whilst remaining economically competitive, by use of plutonium recycle and/or thorium; using the CANDU concept with thorium it is possible to limit the total uranium requirement for a given nuclear power capacity; and finally a system based on CANDU-PHW reactors could introduce FBR reactors more quickly and efficiently than one based on LWR reactors. (U.K.)
Khan, Nadia A; McAlister, Finlay A; Rabkin, Simon W; Padwal, Raj; Feldman, Ross D; Campbell, Norman RC; Leiter, Lawrence A; Lewanczuk, Richard Z; Schiffrin, Ernesto L; Hill, Michael D; Arnold, Malcolm; Moe, Gordon; Campbell, Tavis S; Herbert, Carol; Milot, Alain; Stone, James A; Burgess, Ellen; Hemmelgarn, B; Jones, Charlotte; Larochelle, Pierre; Ogilvie, Richard I; Houlden, Robyn; Herman, Robert J; Hamet, Pavel; Fodor, George; Carruthers, George; Culleton, Bruce; deChamplain, Jacques; Pylypchuk, George; Logan, Alexander G; Gledhill, Norm; Petrella, Robert; Tobe, Sheldon; Touyz, Rhian M
mellitus or chronic kidney disease (regardless of the degree of proteinuria). Most adults with hypertension require more than one agent to achieve these target BPs. For adults without compelling indications for other agents, initial therapy should include thiazide diuretics. Other agents appropriate for first-line therapy for diastolic hypertension with or without systolic hypertension include beta-blockers (in those younger than 60 years), angiotensin-converting enzyme (ACE) inhibitors (in nonblack patients), long-acting calcium channel blockers or angiotensin receptor antagonists. Other agents for first-line therapy for isolated systolic hypertension include long-acting dihydropyridine calcium channel blockers or angiotensin receptor antagonists. Certain comorbid conditions provide compelling indications for first-line use of other agents: in patients with angina, recent myocardial infarction or heart failure, beta-blockers and ACE inhibitors are recommended as first-line therapy; in patients with diabetes mellitus, ACE inhibitors or angiotensin receptor antagonists (or in patients without albuminuria, thiazides or dihydropyridine calcium channel blockers) are appropriate first-line therapies; and in patients with nondiabetic chronic kidney disease, ACE inhibitors are recommended. All hypertensive patients should have their fasting lipids screened, and those with dyslipidemia should be treated using the thresholds, targets and agents recommended by the Canadian Hypertension Education Program Working Group on the management of dyslipidemia and the prevention of cardiovascular disease. Selected patients with hypertension, but without dyslipidemia, should also receive statin therapy and/or acetylsalicylic acid therapy. VALIDATION All recommendations were graded according to strength of the evidence and voted on by the 45 members of the Canadian Hypertension Education Program Evidence-Based Recommendations Task Force. All recommendations reported here achieved at least 95
Sabatini, Luigi; Giachino, Matteo; Risitano, Salvatore; Atzori, Francesco
Total knee arthroplasty (TKA) is the most worldwide practiced surgery for knee osteoarthritis and its efficacy is mightily described by literature. Concerns about the invasiveness of TKA let the introduction of segmental resurfacing of the joint for younger patients with localized osteoarthritis. Bone stock sparing and ligaments preservation are the essence of both unicompartmental knee arthroplasty (UKA) and bicompartmental knee arthroplasty (BKA). Advantages related to BKA are the respect o...
Khan, Nadia A; Hemmelgarn, Brenda; Padwal, Raj; Larochelle, Pierre; Mahon, Jeff L; Lewanczuk, Richard Z; McAlister, Finlay A; Rabkin, Simon W; Hill, Michael D; Feldman, Ross D; Schiffrin, Ernesto L; Campbell, Norman RC; Logan, Alexander G; Arnold, Malcolm; Moe, Gordon; Campbell, Tavis S; Milot, Alain; Stone, James A; Jones, Charlotte; Leiter, Lawrence A; Ogilvie, Richard I; Herman, Robert J; Hamet, Pavel; Fodor, George; Carruthers, George; Culleton, Bruce; Burns, Kevin D; Ruzicka, Marcel; deChamplain, Jacques; Pylypchuk, George; Gledhill, Norm; Petrella, Robert; Boulanger, Jean-Martin; Trudeau, Luc; Hegele, Robert A; Woo, Vincent; McFarlane, Phil; Touyz, Rhian M; Tobe, Sheldon W
OBJECTIVE: To provide updated, evidence-based recommendations for the prevention and management of hypertension in adults. OPTIONS AND OUTCOMES: For lifestyle and pharmacological interventions, evidence was reviewed from randomized controlled trials and systematic reviews of trials. Changes in cardiovascular morbidity and mortality were the primary outcomes of interest. However, for lifestyle interventions, blood pressure lowering was accepted as a primary outcome given the lack of long-term morbidity and mortality data in this field. For treatment of patients with kidney disease, the progression of kidney dysfunction was also accepted as a clinically relevant primary outcome. EVIDENCE: A Cochrane collaboration librarian conducted an independent MEDLINE search from 2005 to August 2006 to update the 2006 Canadian Hypertension Education Program recommendations. In addition, reference lists were scanned and experts were contacted to identify additional published studies. All relevant articles were reviewed and appraised independently by both content and methodological experts using prespecified levels of evidence. RECOMMENDATIONS: Dietary lifestyle modifications for prevention of hypertension, in addition to a well-balanced diet, include a dietary sodium intake of less than 100 mmol/day. In hypertensive patients, the dietary sodium intake should be limited to 65 mmol/day to 100 mmol/day. Other lifestyle modifications for both normotensive and hypertensive patients include: performing 30 min to 60 min of aerobic exercise four to seven days per week; maintaining a healthy body weight (body mass index of 18.5 kg/m2 to 24.9 kg/m2) and waist circumference (less than 102 cm in men and less than 88 cm in women); limiting alcohol consumption to no more than 14 units per week in men or nine units per week in women; following a diet reduced in saturated fat and cholesterol, and one that emphasizes fruits, vegetables and low-fat dairy products, dietary and soluble fibre, whole
Full Text Available The problem of outbound mobility of Ukrainian students has been presented in the paper. The data regarding the number of Ukrainian students studying in Canada has been pointed out. This paper examines “push-pull” factors which motivate Ukrainian students to seek higher education overseas and factors which attract Ukrainian students to Canadian higher education establishments.
This paper provides an overview of the Canadian approach to the reliability and serviceability of heat exchange equipment used in nuclear power stations and heavy water plants. Current work in vibration and fretting predictions, thermal-hydraulic analyses, and corrosion research is described. Procedures developed for in-service inspection, in situ tube replacment and chemical cleaning of corrosion products are also outlined
Goto, Aya; Yabe, Junko; Sasaki, Hitomi; Yasumura, Seiji
Although parenting practices differ across various sociocultural settings, scientific research on parenting intervention in Asia is scarce. We adopted a Canadian multilanguage group-based parenting program (Nobody's Perfect) into the Japanese public health service setting and evaluated its impact. Our program was feasible as a public service; was well-accepted among the participants with low psychological status, many of whom were first-time mothers; and had a potential positive impact on the mood of mothers and the self-evaluation of their abilities in society. Our results may facilitate and provide direction for similar research in Asia. PMID:20526928
no need for undue haste in implementing these. Therefore we can contemplate an orderly research and development program which will put us in a position to adopt one or more of the many options in 10-20 yr time. Since our major uncertainties are in the areas of fuel reprocessing and active fuel fabrication these will be an important part of this program. It is not clear how our experience relates to U.S. problems. Certainly there are many conditions which are quite different in the two countries. The two most important are: (i) We have developed heavy water power reactors and the U.S. has not. (ii) The U.S. has a fast breeder program and we do not. I would like to stress the fact though that we really believe our program is a fully valid alternative (at least for us). We are quite willing then to explore with you the question of whether Canadian experience has any pertinence to problems associated with the U.S. nuclear power program. (author)
Khan, Nadia A; Hemmelgarn, Brenda; Herman, Robert J; Rabkin, Simon W; McAlister, Finlay A; Bell, Chaim M; Touyz, Rhian M; Padwal, Raj; Leiter, Lawrence A; Mahon, Jeff L; Hill, Michael D; Larochelle, Pierre; Feldman, Ross D; Schiffrin, Ernesto L; Campbell, Norman RC; Arnold, Malcolm O; Moe, Gordon; Campbell, Tavis S; Milot, Alain; Stone, James A; Jones, Charlotte; Ogilvie, Richard I; Hamet, Pavel; Fodor, George; Carruthers, George; Burns, Kevin D; Ruzicka, Marcel; deChamplain, Jacques; Pylypchuk, George; Petrella, Robert; Boulanger, Jean-Martin; Trudeau, Luc; Hegele, Robert A; Woo, Vincent; McFarlane, Phil; Vallée, Michel; Howlett, Jonathan; Katzmarzyk, Peter; Tobe, Sheldon; Lewanczuk, Richard Z
according to the position paper should nonetheless receive statin therapy. Once blood pressure is controlled, acetylsalicylic acid therapy should be considered. VALIDATION: All recommendations were graded according to strength of the evidence and voted on by the 57 members of the Canadian Hypertension Education Program Evidence-Based Recommendations Task Force. All recommendations reported here achieved at least 95% consensus. These guidelines will continue to be updated annually. PMID:18548143
Carla Abreu Ellis
Full Text Available Introduction This research investigated universities registered with the Association of Universities and Colleges of Canada (AUCC whose primary instructional language was English. A content analysis was performed on university web pages related to the following content: (a frequency of graduate programs being offered, (b types of degrees being offered, (c frequency and variation of program of study offerings, (d variation of exit requirements, and (e modalities of course delivery. This research provides an overview and analysis of graduate level programs, more precisely Masters and Doctorate degrees, offered through faculties of education in Canada. An understanding of the findings of this research may benefit Canadian university administrative bodies in providing a source in which they may compare findings with their current offerings and programming. Prospective students of graduate programs in education may also benefit from the information provided in this study when choosing a program of study by ameliorating their knowledge of current programs, curriculum offerings, and modes of course delivery being offered by faculties of education in Canada.
The Canadian and Swedish Safeguards Support Programs have developed a prototype Digital Cerenkov Viewing Device (DCVD) to verify spent fuel. Field measurements were conducted in January 2003 at the Swedish facilities CLAB and Ringhals Unit 2 on PWR fuel and non-fuel assemblies. The images obtained are documented and the Cerenkov characteristics observed are discussed. New Cerenkov information obtained offers the possibility of computer assisted verification of spent fuel and non-fuel assemblies. Quantitative analysis for parameters such as cooling time, alignment and Cerenkov glow as a function of distance are discussed
Full Text Available This paper seeks to explore health literacies with a focus on public libraries and their patrons. The authors’ aim is to extract major themes, challenges, and recommendations for further research and collaboration between health professionals and information professionals in promoting health literacy skills to the public. Major issues will be discussed on the subjects of public service, education, and collaboration between health specialists and information specialists. A major focus of the paper is Canadian health literacy issues, as well as Canadian health information dissemination. Time constraints and budget cuts in the health care system have caused a major strain on health professionals. Within the system, there is a shortage of doctors, nurses, and time devoted to health literacy. As a result, patients often seek answers to their health concerns on their own and supplement their understanding of individual health issues by searching for information via the Internet. While consumers often seek answers to their health questions online, the lack of quality control on the Internet is problematic. Public librarians should therefore turn their attention to promoting and providing reliable online information. Meeting the needs of any group can be a challenge for information professionals in public libraries, especially when it comes to health literacy. Public libraries tend to be one of the first places of contact for general public inquiries on infectious diseases and emerging illnesses. Public librarians play an important role in their communities in all aspects of information research and therefore should be advocates for promoting proper health information.
Full Text Available ... stability and soft tissue envelope. In the early days of reverse arthroplasty, it used to be said ... often we'll drain these patients for a day to try to prevent hematoma formation, especially in ...
Full Text Available ... to conventional arthroplasty, we often use a subscap soft tissue takedown, rather than an osteotomy because of concerns ... the tendon. We've learned that this anterior soft tissue repair is critical for the stability of the ...
Full Text Available ... in the United States. The indications are a patient with painful arthritis, absent rotator cuff, a less ... reverse arthroplasty is indicated for that type of patient. In a younger patient with an intact cuff, ...
Full Text Available ... reverse shoulder arthroplasty for cuff deficient arthritis. You should be aware that I helped design the system ... the delto- pectoral approach. The three features you should watch for in this video are the things ...
Full Text Available ... that we can take them out at the time of antibiotic stoppage. Another question is, why such ... been with your patients? Well, most of the time when you're talking about an arthroplasty, their ...
Full Text Available ... endo button for secure fixation, as well as #5 Ethibond Mason-Allen sutures around the lesser tuberosity ... hemi arthroplasty, or in an anatomic situation, is 5.3 centimeters from the top of the pectoralis ...
Full Text Available ... a friction bite that if you try to work it around the corner, you can get an ... stability and soft tissue envelope. In the early days of reverse arthroplasty, it used to be said ...
Hip arthroplasty has become a common and still increasing procedure for the treatment of osteoarthritis, advanced head necrosis, post-inflammatory arthritis or rheumatoid arthritis.Radiography is the most important imaging modality for monitoring the normal, asymptomatic hip arthroplasty. Radiographs are obtained at the end of a surgical treatment, to exclude complications like fracture or component misplacement. In the follow-up radiographs are used for the diagnosis of loosening and infection of the hip arthroplasty as well as soft tissue ossification. Together with the history and clinical information, the analysis of morphological findings allows to find the grade of loosening. MRI has been advocated in the diagnosis of infection, in particular in the localisation of soft tissue involvement.Imaging, especially by radiographs, is used for the evaluation of the normal and complicated follow-up of hip arthroplasty. (orig.)
Full Text Available ... to conventional arthroplasty, we often use a subscap soft tissue takedown, rather than an osteotomy because of ... and anteverted, and we worry about crushing that soft bone of the tuberosity later on. So you ...
Full Text Available ... for sort of common cuff arthroplasty in an elderly thin patient where the head is already rising ... cement this case, because in the typical osteoporotic elderly patient with cuff arthropathy, we would do a ...
Full Text Available ... case of reverse shoulder arthroplasty for cuff deficient arthritis. You should be aware that I helped design ... in the last decade for cuff deficient shoulder arthritis in the United States. The indications are a ...
Full Text Available ... here in New York to bring you a video of a recent case of reverse shoulder arthroplasty ... helped design the system that's shown in this video, so I receive royalties and therefore have a ...
Full Text Available ... residents and do receive compensation for that, as well. Now, reverse shoulder arthroplasty is a new option ... t see the neck of the humerus as well, but on the other hand, you have a ...
Full Text Available ... their arm up but they can't do it actively. And the reverse arthroplasty is indicated for ... those. The advantage of a superior approach is it's especially useful if you've had previous open ...
Miller, Theodore T., E-mail: email@example.com [Department of Radiology and Imaging, Hospital for Special Surgery, 535 E. 70th Street, New York, NY 10021 (United States)
The imaging evaluation of the prosthetic hip begins with radiography, but arthrography, aspiration, scintigraphy, sonography, CT and MR imaging all have roles in the evaluation of the painful prosthesis. This article will review the appearance of normal hip arthroplasty including hemiarthroplasty, total arthroplasty, and hip resurfacing, as well as the appearances of potential complications such as aseptic loosening and osteolysis, dislocation, infection, periprosthetic fracture, hardware failure, and soft tissue abnormalities.
Hagen, Anja; Gorenoi, Vitali; Schönermark, Matthias P.
Scientific background The annual number of joint replacement operations in Germany is high. The introduction of an arthroplasty register promises an important contribution to the improvement of the quality of patient's care. Research questions The presented report addresses the questions on organization and functioning, benefits and cost-benefits as well as on legal, ethical and social aspects of the arthroplasty registers. Methods A systematic literature search ...
Crain, J; McFaull, S; Thompson, W; Skinner, R; Do, M T; Fréchette, M; Mukhi, S
This status report on the Canadian Hospitals Injury Reporting and Prevention Program (CHIRPP), an emergency department-based injury and poisoning surveillance system, describes the result of migrating from a centralized data entry and coding process to a decentralized process, the web-based eCHIRPP system, in 2011. This secure system is improving the CHIRPP's overall flexibility and timeliness, which are key attributes of an effective surveillance system. The integrated eCHIRPP platform enables near real-time data entry and access, has user-friendly data management and analysis tools, and allows for easier communication and connectivity across the CHIRPP network through an online collaboration centre. Current pilot testing of automated data monitoring and trend analysis tools-designed to monitor and flag incoming data according to predefined criteria (for example, a new consumer product)-is revealing eCHIRPP's potential for providing early warnings of new hazards, issues and trends. PMID:27284703
Full Text Available Scientific background: The annual number of joint replacement operations in Germany is high. The introduction of an arthroplasty register promises an important contribution to the improvement of the quality of patient’s care. Research questions: The presented report addresses the questions on organization and functioning, benefits and cost-benefits as well as on legal, ethical and social aspects of the arthroplasty registers. Methods: A systematic literature search was conducted in September 2008 in the medical databases MEDLINE, EMBASE etc. and was complemented with a hand search. Documents describing arthroplasty registers and/or their relevance as well as papers on legal, ethical and social aspects of such registers were included in the evaluation. The most important information was extracted and analysed. Results: Data concerning 30 arthroplasty registers in 19 countries as well as one international arthroplasty register were identified. Most of the arthroplasty registers are maintained by national orthopedic societies, others by health authorities or by their cooperation. Mostly, registries are financially supported by governments and rarely by other sources.The participation of the orthopedists in the data collection process of the arthroplasty registry is voluntary in most countries. The consent of the patients is usually required. The unique patient identification is ensured in nearly all registers.Each data set consists of patient and clinic identification numbers, data on diagnosis, the performed intervention, the operation date and implanted prostheses. The use of clinical scores, patient-reported questionnaires and radiological documentation is rare. Methods for data documentation and transfer are paper form, electronic entry as well as scanning of the data using bar codes. The data are mostly being checked for their completeness and validity. Most registers offer results of the data evaluation to the treating orthopedists and
Chang, Qing; Liu, Shubing; Guan, Changyong; Yu, Fangyuan; Wu, Shenguang; Jiang, Changliang
Our aim was to compare hip arthroplasty with internal screw fixation in the repair of intertrochanteric fractures in elderly patients with osteoporosis. Of 112 included patient, 70 (81.81 ± 4.88 years) received hip arthroplasty with a prosthesis specially designed for intertrochanteric fractures, and 42 (83.46 ± 5.11 years) underwent plate-screw fixation. The hip arthroplasty group had significantly longer operation time, intraoperative blood loss, and total volume of blood transfused but had shorter time to beginning weight-bearing (5.94 ± 2.76 vs 23.68 ± 22.01 days) and higher postoperative Harris hip score (91.37 ± 4.80 vs 86.14 ± 5.46). In the arthroplasty group, there were 2 dislocations; and in the plate-screw fixation group, there were 5 internal fixation failures. Hip arthroplasty is preferable to internal fixation in elderly patients (age >80 years) with osteoporosis. PMID:21530148
Khan, Khurram J; Levstik, Mark A
BACKGROUND: Matching to a gastroenterology (GI) fellowship position in Canada is increasingly competitive.OBJECTIVE: To identify factors that determine how residents rank programs across the country, and how program directors rank their applicants.METHODS: Using input from several current GI trainees and former program directors, two separate surveys were developed. An online survey was sent one month after the match to every resident matched to an adult GI program in the 2007 match. A separa...
Baril, R; Clarke, J; Friesen, M; Stock, S; Cole, D
In this qualitative research project, researchers in three Canadian provinces explored the perceptions of many different actors involved in return-to-work (RTW) programs for injured workers, studying their views on successful RTW strategies and barriers to/facilitators of the RTW process, then analyzing the underlying dynamics driving their different experiences. Each research team recruited actors in a variety of different workplaces and key informants in the RTW system, and used a combination of in-depth, semi-structured interviews and focus groups to collect data, which were coded using an open coding system. Analysis took a social constructionist perspective. The roles and mandates of the different groups of actors (injured workers; other workplace actors; actors outside the workplace), while sometimes complementary, could also differ, leading to tension and conflict. Characteristics of injured workers described as influencing RTW success included personal and sociodemographic factors, beliefs and attitudes, and motivation. Human resources managers and health care professionals tended to attribute workers' motivation to their individual characteristics, whereas injured workers, worker representatives and health and safety managers described workplace culture and the degree to which workers' well-being was considered as having a strong influence on workers' motivation. Some supervisors experienced role conflict when responsible for both production quotas and RTW programs, but difficulties were alleviated by innovations such as consideration of RTW program responsibilities in the determination of production quotas and in performance evaluations. RTW program success seemed related to labor-management relations and top management commitment to Health and Safety. Non-workplace issues included confusion stemming from the compensation system itself, communication difficulties with some treating physicians, and role conflict on the part of physicians wishing to
Giachino, Matteo; Risitano, Salvatore; Atzori, Francesco
Total knee arthroplasty (TKA) is the most worldwide practiced surgery for knee osteoarthritis and its efficacy is mightily described by literature. Concerns about the invasiveness of TKA let the introduction of segmental resurfacing of the joint for younger patients with localized osteoarthritis. Bone stock sparing and ligaments preservation are the essence of both unicompartmental knee arthroplasty (UKA) and bicompartmental knee arthroplasty (BKA). Advantages related to BKA are the respect of knee biomechanics, lower complications rates, shorter hospital stay, faster rehabilitation. Moreover, in case of failure of the first implant the conversion to TKA is undemanding and can be compared to a standard prosthesis. Our experience suggest that BKA is a reliable technique in selected cases and especially younger people with higher functional requests can favourably profit from it. Although those results are encouraging, we still need further prospective, randomized, long-term studies to finally assess BKA indications and outcomes. PMID:26855941
Sabatini, Luigi; Giachino, Matteo; Risitano, Salvatore; Atzori, Francesco
Total knee arthroplasty (TKA) is the most worldwide practiced surgery for knee osteoarthritis and its efficacy is mightily described by literature. Concerns about the invasiveness of TKA let the introduction of segmental resurfacing of the joint for younger patients with localized osteoarthritis. Bone stock sparing and ligaments preservation are the essence of both unicompartmental knee arthroplasty (UKA) and bicompartmental knee arthroplasty (BKA). Advantages related to BKA are the respect of knee biomechanics, lower complications rates, shorter hospital stay, faster rehabilitation. Moreover, in case of failure of the first implant the conversion to TKA is undemanding and can be compared to a standard prosthesis. Our experience suggest that BKA is a reliable technique in selected cases and especially younger people with higher functional requests can favourably profit from it. Although those results are encouraging, we still need further prospective, randomized, long-term studies to finally assess BKA indications and outcomes. PMID:26855941
Baxendale Darlene M
Full Text Available Abstract Background Knowledge & attitudes of healthcare providers (HCP have significant impact on frequency with which vaccines are offered & accepted but many HCP are ill equipped to make informed recommendations about vaccine merits & risks. We performed an assessment of the educational needs of trainees regarding immunization and used the information thus ascertained to develop multi-faceted, evaluable, educational tools which can be integrated into formal education curricula. Methods (i A questionnaire was sent to all Canadian nursing, medical & pharmacy schools to assess immunization-related curriculum content (ii A 77-item web-based, validated questionnaire was emailed to final-year students in medicine, nursing, & pharmacy at two universities in Nova Scotia, Canada to assess knowledge, attitudes, & behaviors reflecting current immunization curriculum. Results The curriculum review yielded responses from 18%, 48%, & 56% of medical, nursing, & pharmacy schools, respectively. Time spent on immunization content varied substantially between & within disciplines from 50 hrs. Most schools reported some content regarding vaccine preventable diseases, immunization practice & clinical skills but there was considerable variability and fewer schools had learning objectives or formal evaluation in these areas. 74% of respondents didn't feel comfortable discussing vaccine side effects with parents/patients & only 21% felt they received adequate teaching regarding immunization during training. Conclusions Important gaps were identified in the knowledge of graduating nursing, medical, & pharmacy trainees regarding vaccine indications/contraindications, adverse events & safety. The national curriculum review revealed wide variability in immunization curriculum content & evaluation. There is clearly a need for educators to assess current curricula and adapt existing educational resources such as the Immunization Competencies for Health Professionals in
Leadbeater, Bonnie J; Gladstone, Emilie J; Sukhawathanakul, Paweena
Substantial research illuminates many factors effecting the implementation of evidence-based mental health promotion programs in schools; however, research on how schools plan for sustaining their investments in these programs is limited. In this qualitative study, we elicited descriptions of opportunities and challenges for sustainability. We interviewed 24 individuals from schools involved in a longitudinal, qualitative research project that followed uptake and implementation of the evidence-based WITS Programs across 2 years (Leadbeater et al. 2012). WITS stands for Walk away, Ignore, Talk it out and Seek help and the online WITS Programs focus on preventing peer victimization ( www.witsprograms.ca ). Our findings suggest that sustainability planning in schools is not merely a next step following high quality implementation, but rather involves multiple ongoing processes that need to be anticipated and supported by school leadership and program champions and developers in order to realize investments in evidence-based programs. PMID:26148980
The Environmental Commitment and Responsibility (ECR) Program is an industry-wide initiative of the Canadian Electricity Association. The program, launched in 1997, builds on individual initiatives of member utilities and provides a forum to address the industry's commitment to sustainable development and better environmental performance. This annual report focuses on air quality issues for the electricity industry with emphasis on the challenge of airborne mercury and climate change. It also includes a report card from the public advisory panel. In their Letter to the Industry, the panel members expressed their support for the ECR initiative and commended the program participants. This report also presented a series of actions that may be taken to address all of the Panel's recommendations. Some member utilities have put principles into action by developing and deploying alternative energy technologies, such as wind, solar and small run of river hydro electric power. These sources are becoming more cost competitive and have potentially less impact on the environment. The industry is also enhancing the many different fuel types available throughout Canada. Environmental performance highlights and trends for the year 2000 were also presented. While no new trends emerged in 2000, indicators show a continuing and steady improvement in environmental performance in all areas, even with the significant increase in fossil fuel power generation. It was emphasized that in order to meet the rising demand for energy, other measures must be taken, including new capacity and infrastructure, and energy management programs. The increased capital investment for these initiatives will require adequate market prices that reflect the long term value of electrical energy. This report demonstrates the industry's commitment to conduct their business with respect for the natural environment and social expectations. tabs., figs
The Canadian and Swedish Safeguards Support Programs have developed a new digital Cerenkov viewing device (DCVD) to verify spent fuel. The new system, based upon an electron-multiplied charge-coupled device that is lumogen coated, can operate at 14 frames per second using the fast 5 MHz analogue to digital converter. The new DCVD was successful in measuring the long-cooled Aagesta fuel with a burnup of 1,200 MWd/t U and a cooling time of 31 years, which is well below the target of 10,000 MWd/t U and 40- years- cooled. Scanning of fuel assemblies was successfully demonstrated. With the aid of a laser pointer system, random verification within a reasonable time frame was also demonstrated
Canada has established a safeguards research and development program, the purpose of which is to supplement the resources of the International Atomic Energy Agency. The program of support is a coordinated effort for the development and application of safeguards techniques and instruments to facilities safeguarded by the IAEA. This document sets forth those tasks which comprise the program
Full Text Available Reverse Shoulder Arthroplasty Zimmer, Inc. New York City, New York March 17, 2010 Welcome to this OR Live presentation, brought to you by Zimmer. Hi. I'm ... my partner, Brad Parsons. We're here in New York to bring you a video of a ...
Due to the failure of current studies of ergonomics programs in transnational factories in Honduras to adequately address the issue of prevention, this study examines how the production process in Canadian-owned factories operating in Honduras mitigate against primary and secondary prevention measures. Using a feminist lens and drawing on grounded theory, this study is based on interviews with seven Honduran women workers suffering from work-related musculoskeletal disorders (WMSDs) and seven...
The paper reviews Canadian experience in the production of heavy water, presents a long-term supply projection, relates this projection to the anticipated long-term electrical energy demand, and highlights principal areas for further improvement that form the bulk of our research and development program on heavy water processes
The Canadian Red Cross is guided by its Fundamental Principles--humanity, impartiality, neutrality, independence, voluntary service, unity, and universality--and organized in a traditional geographic hierarchical structure. Among the characteristics that have contributed to its success are a budgeting process that starts at the local level, measurement of program outcomes, and coordinated fundraising activities at the regional level. PMID:18551842
Austin, Ryan E; Wanzel, Kyle R
Despite increases in medical school enrolment, applications to surgical residency programs in Canada have been in decline over the past decade, with an increasing number of unmatched surgical residency positions. We examined the current status of surgical residency in Canada and analyzed application trends (2002–2013) for surgical training programs across Canada. Our findings suggest that most undergraduate medical schools across Canada are having difficulty fostering interest in surgical careers. We propose that a lack of adequate early exposure to the surgical specialties during undergraduate training is a critical factor. Moving forward, we must examine how the best-performing institutions and surgical programs have maintained interest in pursuing surgical careers and adapt our recruitment methods to both maintain and grow future interest. As Mary Engelbreit said, "If you don't like something, change it; if you can't change it, change the way you think about it." PMID:25598177
The major research and development activities in the disposal vault sealing program are buffer development, backfill development, grouting, tunnel and shaft sealing development, and borehole sealing development. The buffer is likely to be a mixture of clay and sand surrounding the waste package and is intended, primarily, to minimize near-field mass transport. The backfill would fill the remainder of the underground workings and most of the volume of the access shafts. Its major component would be crushed rock or sand, or both, with sufficient clay added to achieve the required permeability specification. Boreholes would be sealed throughout their length with low-permeability materials. These may be cements or clays. Shaft seals would be emplaced at specific locations and, probably, would be composed of a low-permeability clay or concrete plug, together with grouting of the rock surrounding the plug. Progress to date and planned future activities for each major part of the program are described. The principal foci of the program are the research and development activities required to assess the concept of underground disposal in plutonic rock and the design and implementation of vault sealing experiments in the Underground Research Laboratory. Program plans are presented that describe the logical progression of each major component of the program, and that indicate the timing of major events that contribute to the final objective of the program, which is to develop engineering specifications for the buffer, backfill and seals, and to justify these specifications in terms of the performance of the waste disposal system. 131 refs
Letourneau, Nicole; Whitty, Pam; Watson, Barry; Phillips, Jennifer; Joschko, Justin; Gillis, Doris
Low levels of literacy in early childhood can have lasting effects on children's educational and intellectual development. Many countries have implemented newborn literacy programs designed to teach parents pre-literacy promoting activities to share with their children. We conducted 2 quasi-experimental studies using 1) a pre-test/post-test design and 2) a non-equivalent control group design to examine the effect of newborn literacy programs on parents' self-reported literacy intentions/behaviors, values toward literacy, and parent-child interactions. Parents were recruited from 3 provinces, 2 with newborn literacy programs (intervention) and 1 without (control). Parents in the intervention group completed prenatal and postnatal (after participation in program) questionnaires. Parents in the control group completed 1 questionnaire. Questionnaires were designed to capture parents' literacy intentions (prenatal), behaviors (postnatal), values, and parent-child interactions (postnatal). A total of 98 parents were included in study one and 174 were included in study two. Parents' self-reported prenatal intentions and values were higher than their postnatal behaviors and values. Parents in the intervention group exhibited higher literacy behaviors and values and greater enjoyment reading to their children than parents in the control group, though they also reported reading to their children less frequently. Parents in the intervention group had significantly higher Positive Interactive scores than controls. Overall, we found participation in newborn literacy programs positively impacted parenting behaviors and attitudes. Lower postnatal within-group scores (intentions and values versus behaviors and values) may have been the result of participants' high expectations. Given our findings, we recommend that these programs continue. PMID:26368512
The research and development program for the safe, permanent disposal of Canada's nuclear fuel wastes has been established. This report, the first of a series of annual reports, reviews in general terms the progress which has been achieved. After briefly reviewing the rationale and organization of the program, the report summarizes activities in the area of public information, used fuel storage and transportation, immobilization of used fuel and fuel reprocessing wastes, research and development associated with deep underground disposal, and environmental and safety assessment. (auth)
This document outlines the program on the development of advanced containment systems for the disposal of used fuel in a vault deep in plutonic rock. Possible advanced containment concepts, the strategy adopted in selecting potential container materials, and experimental programs currently underway or planned are presented. Most effort is currently directed toward developing long-term containment systems based on non-metallic materials and massive metal containers. The use of additional independent barriers to extend the lifetime of simple containment systems is also being evaluated. 58 refs
Teacher education programs play a crucial role in preparing teachers for their future assessment roles and responsibilities, yet many beginning teachers feel unprepared to assess their students' performances (Mertler, 2009). To address concerns related to the relevancy of pre-service assessment education, this study examined 57 syllabi from…
Bennett, Susan; Ward, Michelle; Moreau, Katherine; Fortin, Gilles; King, Jim; MacKay, Morag; Plint, Amy
Objective: We sought to determine the incidence, clinical features, and demographic profile of head injury secondary to suspected child maltreatment (abuse or neglect) in Canada to help inform the development and evaluation of prevention programs for abusive head injuries. Methods: From March 1, 2005 to February 28, 2008, an average of 2,545…
Mark J Kearns
Full Text Available BACKGROUND: There are limited recent data on rubella immunity in women of childbearing age in Canada. In the present paper, the proportion of rubella seroreactivity and redundant testing (testing of women previously seropositive when tested by the same physician in the Alberta prenatal rubella screening program were studied.
This report, the second of a series of annual reports, reviews in general terms the progress which has been achieved in the research and development program for the safe, permanent disposal of Canada's nuclear fuel wastes. The report summarizes activities over the past year, in the areas of public interaction, used fuel storage and transportation, immobilization of used fuel and fuel reprocessing wastes, research and development associated with deep underground disposal, and environmental and safety assessment. (auth)
This report, the third of a series of annual reports, reviews the progress that has been made in the research and development program for the safe management and disposal of Canada's nuclear fuel wastes. The report summarizes activities over the past year, in the areas of public interaction, irradiated fuel storage and transportation, immobilization of irradiated fuel and fuel recycle wastes, research and development associated with deep underground disposal, and environmental and safety assessment
This report, the fourth of a series of annual reports, reviews the progress that has been made in the research and development program for the safe management and disposal of Canada's nuclear fuel waste. The report summarizes activities over the past year in the following areas: public interaction, used fuel storage and transportation, immobilization of used fuel and fuel recycle waste, geoscience research associated with deep underground disposal, environmental research, environmental and safety assessment
The government of Canada has had a financial involvement with the nuclear industry in four areas: nuclear power development, including expenditures for research and development, prototype reactors, and regulation; uranium industry support, including the operations of Eldorado Nuclear Ltd. and the uranium stockpiling program; the financing of nuclear reactors, activities in which the federal government has acted as a banker for the sale of reactors; and heavy water production. Up to 1978-79 total federal expenditures of around $3.4 billion in current collars had been invested. Of this amount, about 56 percent was associated with nuclear power development, 2 percent with uranium industry support, 22 percent with heavy water, and 22 percent with financing reactor sales
Hastings, I. J.; Burton, D. G.; Celli, A.; Delaney, R. D.; Fehrenbach, P. J.; Howe, L. M.; Larson, L. L.; MacEwen, S. R.; Miller, J. M.; Naeem, T. A.; Sawicki, J. A.; Swanson, M. L.; Verrall, R. A.; Zee, R. H.
The major irradiation facility at Chalk River Nuclear Laboratories (CRNL) is the NRU research reactor. Both unvented and vented capsule experiments on candidate blanket ceramics can be performed. In the unvented tests, tritium release data (HT-to-HTO ratio, tritium retention) are obtained by post-irradiation heating of the breeder ceramic in the presence of a sweep gas. Four tests have been completed on Li 2O and LiAlO 2. Effects of sweep gas composition, extraction vessel material and ceramic properties have been determined. Two unvented irradiations under the BEATRIX international breeder exchange program have been completed; analysis is underway. The vented tests involve long-term irradiation of candidate blanket materials. CRITIC-I, scheduled for mid-1986 under BEATRIX, will examine ANL-fabricated Li 2O in a six-month irradiation at 700-1200 K, varying sweep gas composition, with on-line HT/HTO measurement. Additionally, accelerator simulation techniques are available, using 70 kV and 2.0 MV mass separators, a 2.5 MV Van de Graaff accelerator and a tandem accelerator super-conducting cyclotron, the latter allowing irradiation with protons, deuterons or helium at 18-20 MeV.
Rasmussen, Jeppe; Jakobsen, John; Brorson, Stig;
The Danish Shoulder Arthroplasty Registry (DSR) was established in 2004. Data are reported electronically by the surgeons. Patient-reported outcome is collected 10-14 months postoperatively using the Western Ontario osteoarthritis of the shoulder index (WOOS). 2,137 primary shoulder arthroplasties...
Leatherdale, Scott T.; Ahmed, Rashid
Data from the Canadian Youth Smoking Survey (n = 27,030 in 2006; n = 16,705 in 2004; n = 11,757 in 2002) were used to examine changes in the prevalence and comorbid use of alcohol, tobacco, and marijuana over time and examine if demographic factors and binge drinking are associated with comorbid substance use among youth. Alcohol was the most…
Lange, Jeppe; Troelsen, Anders; Thomsen, Reimar W; Søballe, Kjeld
Two-stage revision is regarded by many as the best treatment of chronic infection in hip arthroplasties. Some international reports, however, have advocated one-stage revision. No systematic review or meta-analysis has ever compared the risk of reinfection following one-stage and two-stage revisi......Two-stage revision is regarded by many as the best treatment of chronic infection in hip arthroplasties. Some international reports, however, have advocated one-stage revision. No systematic review or meta-analysis has ever compared the risk of reinfection following one-stage and two......-stage revisions for chronic infection in hip arthroplasties....
This text presents a synthesis of an interview with Dr. Kirsten Johnson, a Canadian physician fully engaged in training health professionals in humanitarian response and intervention. Dr. Johnson shows that simulation-based training is essential to the development of core humanitarian competencies and to the shaping of ethical attitudes as well. She stresses Canada’s duty to assure appropriate training of its health professionals before sending them out on humanitarian missions.
"I Am Canadian: Immigration and Multiculturalism in the True North" looks at Canadian immigration history from a contemporary point of view. The article scrutinizes recent discussions on dual nationality and what this may mean for Canadianness......."I Am Canadian: Immigration and Multiculturalism in the True North" looks at Canadian immigration history from a contemporary point of view. The article scrutinizes recent discussions on dual nationality and what this may mean for Canadianness....
Full Text Available ... Institute. We're going to be doing an MIS total knee arthroplasty with the Zimmer mobile bearing ... this point. And there is many recipes for MIS knee surgery as there are surgeons. What’s kind ...
Vernon H Hoeppner
Full Text Available Endemic tuberculosis (TB was almost certainly present in Canadian aboriginal people (aboriginal Canadians denotes status Indians, Inuit, nonstatus Indians and metis as reported by Statistics Canada before the Old World traders arrived. However, the social changes that resulted from contact with these traders created the conditions that converted endemic TB into epidemic TB. The incidence of TB varied inversely with the time interval from this cultural collision, which began on the east coast in the 16th century and ended in the Northern Territories in the 20th century. This relatively recent epidemic explains why the disease is more frequent in aboriginal children than in Canadian-born nonaboriginal people. Treatment plans must account for the socioeconomic conditions and cultural characteristics of the aboriginal people, especially healing models and language. Prevention includes bacillus Calmette-Guerin vaccination and chemoprophylaxis, and must account for community conditions, such as rates of suicide, which have exceeded the rate of TB. The control of TB requires a centralized program with specifically directed funding. It must include a program that works in partnership with aboriginal communities.
Ho, J; Meis, J. F. G. M.; Nabuurs-Franssen, M.H.; Voss, A.
Despite of the steady decrease of surgical site infection (SSI) over the last two decades, the incidence of SSI after hip and knee arthroplasty has recently surged. This may be explained by technical changes that may result in an increased risk of SSI, such as the broad implementation of fast track programs, and/or early interventions on suspected SSI. By definition, early intervention may lead to a higher SSI score, even in the absence of a true SSI. In any case, the reverse trend of SSI war...
Understanding the performance and impact of public knowledge translation funding interventions: Protocol for an evaluation of Canadian Institutes of Health Research knowledge translation funding programs
McLean Robert K D
Full Text Available Abstract Background The Canadian Institutes of Health Research (CIHR has defined knowledge translation (KT as a dynamic and iterative process that includes the synthesis, dissemination, exchange, and ethically-sound application of knowledge to improve the health of Canadians, provide more effective health services and products, and strengthen the healthcare system. CIHR, the national health research funding agency in Canada, has undertaken to advance this concept through direct research funding opportunities in KT. Because CIHR is recognized within Canada and internationally for leading and funding the advancement of KT science and practice, it is essential and timely to evaluate this intervention, and specifically, these funding opportunities. Design The study will employ a novel method of participatory, utilization-focused evaluation inspired by the principles of integrated KT. It will use a mixed methods approach, drawing on both quantitative and qualitative data, and will elicit participation from CIHR funded researchers, knowledge users, KT experts, as well as other health research funding agencies. Lines of inquiry will include an international environmental scan, document/data reviews, in-depth interviews, targeted surveys, case studies, and an expert review panel. The study will investigate how efficiently and effectively the CIHR model of KT funding programs operates, what immediate outcomes these funding mechanisms have produced, and what impact these programs have had on the broader state of health research, health research uptake, and health improvement. Discussion The protocol and results of this evaluation will be of interest to those engaged in the theory, practice, and evaluation of KT. The dissemination of the study protocol and results to both practitioners and theorists will help to fill a gap in knowledge in three areas: the role of a public research funding agency in facilitating KT, the outcomes and impacts KT funding
Water samples were analyzed for total U, Ra-226, Cs-137, Sb-125 and tritium. Levels are generally low, and no time trends were discernible during the monitoring period. Temporal variations among the quarterly analyses are mostly insignificant. Except for total U at certain locations, all other radionuclide levels were much below the 'target concentration' guidelines for Canadian drinking water. The main contribution to the radiological dose commitment was from total U and Ra-226. Contributions from individual radionuclides to cumulative dose were in the order: total U > Ra-226 > tritium > Cs-137 > Sb-125. The limited sediment data suggest that the nuclear facilities along the Ottawa River have increased the levels of Cs-137 and Co-60 but have not affected those of Pb-210 and Ra-226. Total U and Ra-226 activities data suggest disequilibrium; the levels of total U in water were much higher than those of Ra-226. Concentrations of the two radionuclides, however, were positively correlated for most surface waters
Full text: Canada operates a publicly funded health care system in which 70% of health care costs are paid by some level of government. Radiotherapy, indeed most cancer management, falls within the publicly funded realm of Canada's health care system. National legislation (the Canada Health Act) guarantees access to cancer services for all Canadians. However, the financial responsibility for these services is borne by the provinces. Most Canadian provinces manage the cancer management problem through central cancer agencies. In the past few decades, these provincial cancer agencies have formed the Canadian Association of Provincial Cancer Agencies (CAPCA). This association has adopted a broad mandate for cancer management in Canada (see www.capca.ca). Included in this mandate is the adoption of standards and guidelines for all aspects of cancer control. The complexity of radiation therapy has long underscored the need for cooperation at the international and national levels in defining programmes and standards. In recent decades formal quality assurance programme recommendations have emerged in the United States, Europe and Great Britain. When defining quality assurance programs, Canadian radiation treatment centres have referenced U.S. and other program standards since they have been available. Recently, under the leadership of the Canadian Association of Provincial Cancer Agencies (CAPCA), Canadian national quality assurance program recommendations are emerging. A CAPCA sponsored project to harmonize Canadian quality assurance processes has resulted in a draft document entitled 'Standards for Quality Assurance at Canadian Radiation Treatment Centres'. This document provides recommendations for the broad framework of radiation therapy quality assurance programs. In addition, detailed work is currently underway regarding equipment quality control procedures. This paper explores the historical and political landscape in which the quality assurance problem has
Full Text Available ... the NexGen® LPS-Flex Mobile and LPS-Mobile Bearing Knees March 5, 2009 Welcome to this "OR ... MIS total knee arthroplasty with the Zimmer mobile bearing knee. We invite all of you who have ...
Full Text Available ... NexGen® LPS-Flex Mobile and LPS-Mobile Bearing Knees March 5, 2009 Welcome to this "OR Live" ... re going to be doing an MIS total knee arthroplasty with the Zimmer mobile bearing knee. We ...
This popularly written article compares Canadian attitudes to protests against nuclear power to those in the United States. Canadian protesters are more peaceful, expressing their opinions within the law. The article describes the main anti-nuclear groups in Canada and presents the results of public opinion surveys of Canadians on the use of nuclear power for generating electricity. (TI)
In this paper, we present the results of a study of the impact of Canadian carbon stabilization programs on exports of natural gas to the United States. This work was based on a study conducted for the US Environmental Protection Agency. The Gas Systems Analysis model (GSAM), developed by ICF Consulting for the US Department of Energy, was used to gauge the overall impact of the stabilization programs on the North American natural gas market. GSAM is an intertemporal, spatial price equilibrium (SPE) type model of the North American natural gas system. Salient features of this model include characterization of over 17 000 gas production reservoirs with explicit reservoir-level geologic and economic information used to build up the supply side of the market. On the demand side, four sectors, residential, commercial, industrial and electric power generation, are characterized in the model. Lastly, both above and below ground storage facilities as well as a comprehensive pipeline network are used with the supply and demand side characterizations to arrive at estimates of market equilibrium prices and quantities and flows. 35 refs
Tarasevicius, Sarunas; Stucinskas, Justinas; Robertsson, Otto; Wingstrand, Hans
Background and purpose We have previously reported that the first 10 years of hip arthroplasty in Lithuania resulted in a higher cumulative revision rate than that observed in Sweden. We thus compared the corresponding results after introduaction of total knee replacement in Lithuania. Methods The 10-year revision rate for the first 595 primary ScanKnee arthroplasties inserted in Klaipeda, Lithuania, was compared to that for the first 1,280 ScanKnee primary arthroplasties inserted in Sweden. ...
Memişoğlu, Kaya; Müezzinoğlu, U Sefa; Kesemenli, Cumhur Cevdet
The Gunston polycentric knee arthroplasty, first designed and performed by Frank Gunston in 1971, is the first prosthesis considering the natural knee biomechanics. Although the polycentric knee arthroplasty showed encouraging results to relieve pain and to preserve the preoperative range of motion and joint instability, the improvements in prosthesis design and arthroplasty technology rapidly made the polycentric knee prosthesis obsolete. Herein, we report a 58-year old male patient who had revision of the Gunston polycentric knee arthroplasty with total knee arthroplasty performed 32 years after the initial operation. PMID:21343693
This paper describes the design and construction of new Performance Testing programme that was implemented in Canada in 2008. The Canadian Regulator (Canadian Nuclear Safety Commission - CNSC) had determined that their licensees, in addition to the existing In Vivo and In Vitro performance tests, needed to demonstrate their ability in interpreting bioassay results. The program is administered by the Canadian National Calibration Reference Centre for Bioassay and In Vivo Monitoring (NCRC). Currently the NCRC carries out the performance testing for the In Vitro and In Vivo. At time of writing, the first round has not been completed and the pass/fail criteria have not been determined. (author)
Mac Neil, Brad A; Leung, Pauline; Nadkarni, Pallavi; Stubbs, Laura; Singh, Manya
Eating disorder clinics across Canada place heavy reliance on group-based programming. However, little work has examined whether this modality of treatment is well-received by patients and results in clinical improvements. The purpose of this pilot study was to evaluate patient satisfaction and outcomes for group-based programming offered through an adult eating disorders clinic. Participants were 81 adults who met DSM-5 criteria for an eating disorder and participated in the study as part of the clinic's program evaluation. Participants received medical monitoring, psychiatric follow-up, adjunct nutrition and pre-psychological treatment, and participated in the clinic's core cognitive behavioural therapy (CBT) group. Demographic information and weight were collected at intake. Participants also completed pre- and post-group programming measures of life satisfaction, depressive and anxiety symptoms, psychological symptoms of the eating disorder, and satisfaction with the programming. Participants' experienced a significant increase in satisfaction with life, and decreases in depressive symptoms and psychological symptoms of the eating disorder post-group. Adults endorsed feeling fairly satisfied with the group-based services provided. Results draw attention to the importance of program evaluation as an integral component of an adult outpatient eating disorder clinic by providing a voice for patients' views of the services received and program outcomes. PMID:27288960
Lafrenière-Bérubé, Charles; Chouteau, Michel; Shamsipour, Pejman; Olivo, Gema R.
Spectral induced polarization (SIP) parameters can be extracted from field or laboratory complex resistivity measurements, and even airborne or ground frequency domain electromagnetic data. With the growing interest in application of complex resistivity measurements to environmental and mineral exploration problems, there is a need for accurate and easy-to-use inversion tools to estimate SIP parameters. These parameters, which often include chargeability and relaxation time may then be studied and related to other rock attributes such as porosity or metallic grain content, in the case of mineral exploration. We present an open source program, available both as a standalone application or Python module, to estimate SIP parameters using Markov-chain Monte Carlo (MCMC) sampling. The Python language is a high level, open source language that is now widely used in scientific computing. Our program allows the user to choose between the more common Cole-Cole (Pelton), Dias, or Debye decomposition models. Simple circuits composed of resistances and constant phase elements may also be used to represent SIP data. Initial guesses are required when using more classic inversion techniques such as the least-squares formulation, and wrong estimates are often the cause of bad curve fitting. In stochastic optimization using MCMC, the effect of the starting values disappears as the simulation proceeds. Our program is then optimized to do batch inversion over large data sets with as little user-interaction as possible. Additionally, the Bayesian formulation allows the user to do quality control by fully propagating the measurement errors in the inversion process, providing an estimation of the SIP parameters uncertainty. This information is valuable when trying to relate chargeability or relaxation time to other physical properties. We test the inversion program on complex resistivity measurements of 12 core samples from the world-class gold deposit of Canadian Malartic. Results show
Carla Abreu Ellis; Jonathan G. Bayley; Jason Brent Ellis
Introduction This research investigated universities registered with the Association of Universities and Colleges of Canada (AUCC) whose primary instructional language was English. A content analysis was performed on university web pages related to the following content: (a) frequency of graduate programs being offered, (b) types of degrees being offered, (c) frequency and variation of program of study offerings, (d) variation of exit requirements, and (e) modalities of course delivery. This ...
The Canadian Fusion Fuels Technology Project was launched in 1982 to coordinate Canada's provision of fusion fuels technology to international fusion power development programs. The project has a mandate to extend and adapt existing Canadian tritium technologies for use in international fusion power development programs. 1985-86 represents the fourth year of the first five-year term of the Canadian Fusion Fuels Technology Project (CFFTP). This reporting period coincides with an increasing trend in global fusion R and D to direct more effort towards the management of tritium. This has resulted in an increased linking of CFFTP activities and objectives with those of facilities abroad. In this way there has been a continuing achievement resulting from CFFTP efforts to have cooperative R and D and service activities with organizations abroad. All of this is aided by the cooperative international atmosphere within the fusion community. This report summarizes our past year and provides some highlights of the upcoming year 1986/87, which is the final year of the first five-year phase of the program. AECL (representing the Federal Government), the Ministry of Energy (representing Ontario) and Ontario Hydro, have given formal indication of their intent to continue with a second five-year program. Plans for the second phase will continue to emphasize tritium technology and remote handling
Wright, E.D. [comp.
This report is the eleventh in a series of semi-annual status reports on the research and development program for the safe management and disposal of Canada's nuclear fuel waste. it describes progress achieved in the three major subprograms, engineered systems, natural systems and performance assessment, from 1991 April 1 to September 30. It also gives a brief description of the activities being carried out in preparation for the public and governmental review of the disposal concept. Since 1987, this program has been jointly funded by AECL and Ontario Hydro under the auspices of the CANDU Owners Group (COG).
The hip joint is the largest joint in the human body and consequently, its evaluation by diagnostic imaging is highly important. This includes imaging of hip joint arthroplasty, which is used to avoid joint immobility following a wide spectrum of diseases, such as end-stage degenerative disease, avascular necrosis of the femoral head or post-traumatic fractures. Conventional radiography is still the standard imaging modality for the evaluation of hip arthroplasty both directly following surgery and for periodical follow-up. In the majority of cases conventional radiography enables adequate assessment of early and late complications that can arise following hip arthroplasty, such as loosening, prosthetic or periprosthetic fracture, luxation, infection and soft tissue calcification. If the diagnosis cannot be established by means of radiography, advanced imaging methods such as computed tomography (CT) and magnetic resonance imaging (MRI), with or without injection of contrast media, may provide additional information. This is particularly true for the depiction of inflammatory processes. Regardless of the imaging modality used patients' clinical symptoms must also be taken into account in order to establish the correct diagnosis. (orig.)
Lindberg-Larsen, Martin; Joergensen, Christoffer Calov; Husted, Henrik;
Bilateral total hip arthroplasty (BTHA) and bilateral simultaneous total hip arthroplasty (BSTHA) are done increasingly. Previous studies evaluating outcomes after bilateral procedures have found different results. The aim of this study was to investigate length of hospital stay (LOS), 30 days...
Kutcher, Stanley Paul; Lauria-Horner, Bianca Aurora; MacLaren, Connie Marian; Bujas-Bobanovic, Maja
Background: Depression is frequently unrecognized and undertreated. Therefore, there is a need to increase the knowledge and skills of primary care physicians regarding the diagnosis and treatment of depression. The aim of this study was to provide, and evaluate the impact of, a brief educational program with a number of practice tools and resources in order to improve family physicians' knowledge, diagnosis, and treatment of depression.
Six years ago the federal government accepted its responsibility for the radioactive waste that has resulted from the six decades of nuclear research and development conducted by Atomic Energy of Canada Limited and its predecessor operator of the Chalk River Laboratories (CRL) the National Research Council (1944 - 1952). Nuclear research and development and, particularly, reactor operation at CRL has resulted in outdated and unused research facilities and buildings and a wide variety of buried and stored radioactive waste. In 2006 the federal government established the Nuclear Legacy Liabilities Program (NLLP) with an initial funding of $520 million. The mandate of the NLLP is to deal with the radioactive waste arising from the nuclear research and development program of AECL and also prototype reactors in which it was involved. The timeline for the NLLP extends several decades into the future. The NLLP is implemented through a partnership of Natural Resources Canada (NRCan) and AECL. NRCan is responsible for policy direction and oversight, while AECL is responsible for program implementation and all licences, facilities and lands. About 70 percent of the liabilities from AECL activities are at CRL. Other sites that will be restored under the NLLP are: the Whiteshell Laboratories and Underground Research Laboratory in Manitoba; NPD and Douglas Point reactors in Ontario; and the Gentilly 1 reactor in Quebec. (author)
Rivard, Léonard P.; Gueye, Ndeye R.
Literacy in the Science Classroom Project was a three-year professional development (PD) program supporting minority-language secondary teachers' use of effective language-based instructional strategies for teaching science. Our primary objective was to determine how teacher beliefs and practices changed over time and how these were enacted in different classrooms. We also wanted to identify the challenges and enablers to implementing these literacy strategies and practices at the classroom, school, and district levels. Data collection involved both qualitative and quantitative methodologies: student questionnaires; interviews with teachers, principals, and mentor; and focus groups with students. The findings suggest that the program had an impact on beliefs and practices commensurate with the workshop participation of individual teachers. These language-enhanced teacher practices also had a positive impact on the use of talking, reading and writing by students in the science classroom. Finally, continuing PD support may be needed in certain jurisdictions for strengthening minority-language programs given the high teacher mobility in content-area classrooms evident in this study.
A federal government environmental assessment review of the disposal concept developed under the Canadian Nuclear Fuel Waste Management Program is currently underway. The Canadian concept is, simply stated, the placement of used fuel (or fuel waste) in long-lived containers at a depth between 500 m and 1000 m in plutonic rock of the Canadian Shield. Atomic Energy of Canada Limited submitted an Environmental Impact Statement in 1994 and the public hearing aspect of the concept review is in its final phase. A unique aspect of the Canadian situation is that government has stipulated that site selection can not commence until the concept has been approved. Hence, the safety and acceptability of the concept is being reviewed in the context of a generic site. Some comments and lessons learned to date related to the review process are discussed. (author)
Wetherbee, Gregory A.; Shaw, Michael J.; Latysh, Natalie E.; Lehmann, Christopher M.B.; Rothert, Jane E.
Precipitation chemistry and depth measurements obtained by the Canadian Air and Precipitation Monitoring Network (CAPMoN) and the US National Atmospheric Deposition Program/National Trends Network (NADP/NTN) were compared for the 10-year period 1995–2004. Colocated sets of CAPMoN and NADP instrumentation, consisting of precipitation collectors and rain gages, were operated simultaneously per standard protocols for each network at Sutton, Ontario and Frelighsburg, Ontario, Canada and at State College, PA, USA. CAPMoN samples were collected daily, and NADP samples were collected weekly, and samples were analyzed exclusively by each network’s laboratory for pH, H + , Ca2+ , Mg2+ , Na + , K + , NH+4 , Cl − , NO−3 , and SO2−4 . Weekly and annual precipitation-weighted mean concentrations for each network were compared. This study is a follow-up to an earlier internetwork comparison for the period 1986–1993, published by Alain Sirois, Robert Vet, and Dennis Lamb in 2000. Median weekly internetwork differences for 1995–2004 data were the same to slightly lower than for data for the previous study period (1986–1993) for all analytes except NO−3 , SO2−4 , and sample depth. A 1994 NADP sampling protocol change and a 1998 change in the types of filters used to process NADP samples reversed the previously identified negative bias in NADP data for hydrogen-ion and sodium concentrations. Statistically significant biases (α = 0.10) for sodium and hydrogen-ion concentrations observed in the 1986–1993 data were not significant for 1995–2004. Weekly CAPMoN measurements generally are higher than weekly NADP measurements due to differences in sample filtration and field instrumentation, not sample evaporation, contamination, or analytical laboratory differences.
Purpose: Statistics from the Canadian post-MD education registry show that numbers of Canadian radiation oncology (RO) trainees have risen from 62 in 1999 to approximately 150 per year between 2003 and 2009, contributing to the current perceived downturn in employment opportunities for radiation oncologists in Canada. When last surveyed in 2003, Canadian RO residents identified job availability as their main concern. Our objective was to survey current Canadian RO residents on their training and career plans. Methods and Materials: Trainees from the 13 Canadian residency programs using the national matching service were sought. Potential respondents were identified through individual program directors or chief resident and were e-mailed a secure link to an online survey. Descriptive statistics were used to report responses. Results: The eligible response rate was 53% (83/156). Similar to the 2003 survey, respondents generally expressed high satisfaction with their programs and specialty. The most frequently expressed perceived weakness in their training differed from 2003, with 46.5% of current respondents feeling unprepared to enter the job market. 72% plan on pursuing a postresidency fellowship. Most respondents intend to practice in Canada. Fewer than 20% of respondents believe that there is a strong demand for radiation oncologists in Canada. Conclusions: Respondents to the current survey expressed significant satisfaction with their career choice and training program. However, differences exist compared with the 2003 survey, including the current perceived lack of demand for radiation oncologists in Canada.
The Canadian Ecology Centre (Ontario) offers year-round residential and day programs in outdoor and environmental education for secondary students, field placement and internship opportunities for college students, and ecotourism programs, while providing employment and tax revenues to the local community. Dubbed consensus environmentalism, the…
Memisoglu, Kaya; Muezzinoglu, U. Sefa; Kesemenli, Cumhur Cevdet
The Gunston polycentric knee arthroplasty, first designed and performed by Frank Gunston in 1971, is the first prosthesis considering the natural knee biomechanics. Although the polycentric knee arthroplasty showed encouraging results to relieve pain and to preserve the preoperative range of motion and joint instability, the improvements in prosthesis design and arthroplasty technology rapidly made the polycentric knee prosthesis obsolete. Herein, we report a 58-year-old male patient who had ...
Joseph Yaw Asomah
Full Text Available There is limited in-depth research focusing on how the state exerts its power and influence through immigration laws, policies and practices in structuring the relations of labour and capital in a manner that reflects capitalist interests. Therefore, the purpose of this paper is to explore the role of the state in fostering capitalist accumulation, using the Seasonal Agricultural Worker Program (SAWP as a case study, and to consider the policy implications of this program. This paper addresses the following questions: What shapes and reproduces labour-capital relations with reference to SAWP? What are the repercussions of these relations, particularly on the international migrant workers? What should be the role of the state and law in transforming these relations? The paper draws on a constellation of insights from neoliberal globalization, segmentation of labour theory, and a conceptual overview of the role of the state in regulating labour-capital relations to illuminate the discussions. This paper helps broaden our current understanding of how the state facilitates capitalist accumulation in the agricultural sector in Canada through immigration policies and practices with reference to the SAWP. The paper therefore makes a contribution to the theoretical debates on the role of the state in the facilitation of capitalist accumulation in agriculture. Il y a peu de recherches approfondies axées sur l'exercice du pouvoir et sur l'influence des lois en matière d'immigration élaborées par l'État, ainsi que sur les politiques et les pratiques de structuration des relations entre les travailleurs et le capital, d'une manière qui reflète les intérêts capitalistes. Par conséquent, l'objectif de ce document est d'explorer le rôle de l'État qui vise à favoriser l'accumulation capitaliste, à l'aide du Programme des travailleurs agricoles saisonniers (PTAS comme une étude de cas, et d'examiner les conséquences de ce programme. Ce document
Bandholm, Thomas; Kehlet, Henrik
Bandholm T, Kehlet H. Physiotherapy exercise after fast-track total hip and knee arthroplasty: time for reconsideration? Major surgery, including total hip arthroplasty (THA) and total knee arthroplasty (TKA), is followed by a convalescence period, during which the loss of muscle strength and......-track methodology or enhanced recovery programs. It is the nature of this methodology to systematically and scientifically optimize all perioperative care components, with the overall goal of enhancing recovery. This is also the case for the care component "physiotherapy exercise" after THA and TKA. The 2 latest...... meta-analyses on the effectiveness of physiotherapy exercise after THA and TKA generally conclude that physiotherapy exercise after THA and TKA either does not work or is not very effective. The reason for this may be that the "pill" of physiotherapy exercise typically offered after THA and TKA does...
This conference presentation presented charts and graphs on the market for Canadian oil. Graphs included crude oil and natural gas prices and heavy oil discount differential. Graphs depicting heavy oil economics such as bitumen blending with condensate were also included along with global crude oil reserves by country. Information on oil sands projects in the Athabasca, Peace River, and Cold Lake deposits was presented along with graphs on oil sands supply costs by recovery type; Canadian production for conventional, oil sands and offshore oil; new emerging oil sands crude types; and 2003 market demand by crude type in the United States and Canada. Maps included Canada and United States crude oil pipelines; western Canadian crude oil markets; long term oil pipeline expansion projects; Canadian and United States crude oil pipeline alternatives; and potential tanker markets for Canadian oil sands production. Lastly, the presentation provided graphs on 2003 refinery crude demand and California market demand. tabs., figs
Full Text Available In Klippel–Trenaunay syndrome, vascular malformations are not only in skin and superficial soft tissues but also in deep tissues like muscles bones and joints. It is well documemted that these recurrent intraarticular bleeds can cause early arthritis and joint pain. Performing arthroplasty in such patients is difficult and fraught with complications. We describe such a case where navigated total knee arthroplasty was performed with success to avoid the problems of intra medullary alignment used in the presence of intra medullary vascular malformations. We also suggest certain measures when knee arthroplasty is considered in such patients.
With increased life expectancy in industrialised countries, improvement of implant design and operative technique, arthroplasty has become a routine procedure. The hip and knee joints are treated by arthroplasty most frequently. Nowadays joint replacement can be performed in many other joints. Radiologic imaging is an important tool for evaluation of the operative results and for detection of early and late complications. In the following article we describe the relevance of different imaging modalities as well as their systematic application in patients with joint arthroplasty. (orig.)
Kimura, C; Vainio, K
The study consists of 208 elbow arthroplasties performed on rheumatoid arthritic patients. A straight resection of the joint was used in 53 cases and a modified Hass arthroplasty with skin interposition in 155 cases. The average postoperative range of motion in these groups was 100 degrees and 96 degrees respectively. Postoperatively the joint was painless in 81 and 67% of the elbows respectively. The Hass arthroplasty gave a better stability and extension power. The most common complications were paresthesias in the region of the ulnar nerve and bone resorption in the region of the ulnar nerve and bone resorption in the region of the olecranon fossa. PMID:779734
Kim, Da-Rae; Potter, Hollis G.; Li, Angela E.; Chun, Ka-Young; Jung, Yoon Young; Kim, Jin-Su; Young, Ki-Won
With advances in implant technology, total ankle arthroplasty (TAA) has become an increasingly popular alternative to arthrodesis for the management of end-stage ankle arthritis. However, reports in the literature do not focus on the imaging features of TAA. Through a literature review, we demonstrate basic design features of the current ankle arthroplasty system, and the normal and abnormal postoperative imaging features associated with such devices. Pre- and postoperative evaluations of ankle arthroplasty mainly include radiography; in addition, computed tomography and magnetic resonance imaging provide further characterization of imaging abnormalities. Familiarization with multimodal imaging features of frequent procedural complications at various postoperative intervals is important in radiological practice. PMID:27134529
Czoli, Christine D; Leatherdale, Scott T; Rynard, Vicki
Introduction Although cigarette use among Canadian youth has decreased significantly in recent years, alternative forms of tobacco use are becoming increasingly popular. Surveillance of youth tobacco use can help inform prevention programs by monitoring trends in risk behaviors. We examined the prevalence of bidi and hookah use and factors associated with their use among Canadian youth by using data from the 2010–2011 Youth Smoking Survey (YSS). Methods We analyzed YSS data from 28,416 studen...
This booklet is designed to explain salient aspects of the Ozone Annex, negotiated and signed recently by Canada and the United States, in a joint effort to improve air quality in North America. By significantly reducing the transboundary flows of air pollutants that cause smog, the Ozone Annex will benefit some 16 million people in central and eastern Canada and provide an example for a future round of negotiations to address concerns of the millions of Canadians and Americans who live in the border area between British Columbia and Washington State. The brochure provide summaries of the Canadian and American commitments, focusing on transportation, monitoring and reporting. The Ozone Annex complements other air quality initiatives by the Government of Canada enacted under the Environmental Protection Act, 1999. These measures include regulations to reduce sulphur content to 30 parts per million by Jan 1, 2005; proposing to restrict toxic particulate matter (PM) to less than 10 microns; establishing daily smog forecasts in the Maritimes and committing to a national program built upon existing smog advisories and forecasts in Quebec, Ontario and British Columbia; and investing in more clean air research through the newly created Canadian Foundation for Climate and Atmospheric Sciences
Barlow, T.; Griffin, D.; Barlow, D; Realpe, A.
Objectives A patient-centred approach, usually achieved through shared decision making, has the potential to help improve decision making around knee arthroplasty surgery. However, such an approach requires an understanding of the factors involved in patient decision making. This review’s objective is to systematically examine the qualitative literature surrounding patients’ decision making in knee arthroplasty. Methods A systematic literature review using Medline and Embase was conducted to ...
Stucinskas, Justinas; Robertsson, Otto; Wingstrand, Hans
Background and purpose We have previously reported that the first 10 years of hip arthroplasty in Lithuania resulted in a higher cumulative revision rate than that observed in Sweden. We thus compared the corresponding results after introduaction of total knee replacement in Lithuania. Methods The 10-year revision rate for the first 595 primary ScanKnee arthroplasties inserted in Klaipeda, Lithuania, was compared to that for the first 1,280 ScanKnee primary arthroplasties inserted in Sweden. As in the hip replacement study, only patients with osteoarthritis (OA) were included. Primary knee arthroplasties without patellar resurfacing were included, and the endpoint was revision for any reason other than addition of a patellar component. Results We found that the cumulative revision rate was not statistically significantly different between the groups. The revision pattern was different, however, and we observed 24 isolated patellar component additions in Sweden, but none in Klaipeda. Interpretation Contrary to the results of our previous hip arthroplasty study, the cumulative revision rate after total knee arthroplasty was similar in the two groups. This suggests that compared to hip arthroplasty, the outcome of total knee arthroplasty was less dependent on surgical experience. The large difference regarding isolated patellar component additions may be explained by long-term accumulation of severe OA cases in Lithuania. To patients subject to a newly introduced surgical treatment offering great improvement in quality of life, patellofemoral pain may be a minor problem. Furthermore, patellar problems may not have seemed particularly relevant for the surgeons, considering the disability of other patients waiting to be treated. PMID:19297790
Josef K Eichinger; Galvin, Joseph W.
The outcomes of total shoulder arthroplasty (TSA) for painful arthritis of the glenohumeral joint are excellent with significant improvement in pain and function. Increased use of total shoulder arthroplasty over the past decade has led to identification of common complications. Although the complication rate is low, accurate and timely diagnosis, appropriate management, and implementation of methods for prevention are critical to a successful long-term outcome. The most common complications ...
Chakrabarty, Gautam; Vashishtha, Mayank; Leeder, Daniel
Polyethylene (PE) has been used extensively in knee arthroplasty since the mid 20th century. Progress in material manufacturing and processing has led to newer polyethylenes over last few decades with different material properties. It has been established that PE wear in knee arthroplasty causes particle induced osteolysis which is the main reason for late failure and requires revision surgery. Although there are various causes of wear, the properties of PE have long been a matter of investig...
Plaschke, Hans Christian; Thillemann, Theis; Belling-Sørensen, Anne Kathrine; Olsen, Bo
In this retrospective study we evaluated the short- to medium-term results after 20 Coonrad-Morrey revision total elbow arthroplasties (TEAs).......In this retrospective study we evaluated the short- to medium-term results after 20 Coonrad-Morrey revision total elbow arthroplasties (TEAs)....
Revision Total Knee Arthroplasty Because of; Loosening; Instability; Impingement; or Other Reasons Accepted as Indications for TKA Exchange.; The Focus is to Determine the Precision of Joint Line Restoration in Navigated vs. Conventional Revision Total Knee Arthroplasty
Kenny, Natasha; Watson, Gavan P. L.; Watton, Claire
A growing number of Canadian universities offer graduate student certificate programs in university teaching. This paper examines such programs at 13 Canadian universities and presents a discussion of program structures and practices. The findings suggest that most programs were offered over one to two years, and upon successful completion,…
This paper includes some statements and remarks concerning the uranium silicide fuels for which there is significant fabrication in AECL, irradiation and defect performance experience; description of two Canadian high flux research reactors which use high enrichment uranium (HEU) and the fuels currently used in these reactors; limited fabrication work done on Al-U alloys to uranium contents as high as 40 wt%. The latter concerns work aimed at AECL fast neutron program. This experience in general terms is applied to the NRX and NRU designs of fuel
Shapiro, Bernard J.
Bilingualism in French and English is a much-to-be hoped for common and shared characteristic of Canadian citizenship—even though to date the effect of forty years of the Official Languages Act has been most marked in government services and among various Canadian elites. Although it is important that Canada hold onto a goal of the widest possible bilingualism,more modest objectives are outlined for the years immediately ahead.
Jans, Øivind; Kehlet, H; Hussain, Zubair Butt;
Background and Objectives The optimal transfusion strategy in hip arthroplasty remains controversial despite existing guidelines. The aim of this study was to evaluate the transfusion practice in patients undergoing primary total hip arthroplasty (THA) or revision total hip arthroplasty (RTHA) in...
With the dramatic growth of the Internet in the 1990s, the Canadian government developed a well-regarded strategy for addressing the emerging issues posed by the "information highway." The strategy featured legal reforms to address privacy and e-commerce, administrative reforms for the government online initiative, and connectivity programs such…
Plaschke, Hans Christian; Thillemann, Theis M; Brorson, Stig;
BACKGROUND: Total elbow arthroplasties (TEAs) are traditionally grouped into linked and unlinked design. The aim was to analyze the difference in clinical outcomes after TEA based on implant design and indication for surgery and to evaluate primary and revision TEAs. METHODS: A total of 167 TEAs...... (126 primary and 41 revision TEAs) in 141 patients were evaluated with patient-reported outcome measure by the Oxford Elbow Score (OES) and clinically assessed with the Mayo Elbow Performance Score (MEPS), range of motion (ROM), and standard radiographs. RESULTS: The mean follow-up was 10.5 years for...... primary and 7.5 years for revision TEAs. There was no difference in OES or MEPS between linked and unlinked primary TEAs. The OES score in the social-psychological domain was significantly lower in TEAs performed due to fracture (67) compared with rheumatoid arthritis (81; P = .025). ROM in extension...
Lauber, Wilfred R.; Bertrand, Jean M.
For the past three years, during a period of high sun spot numbers, propagation measurements were made on the reception of VLF signals in the Canadian Arctic. Between Aug. and Dec. 1989, the received signal strengths were measured on the Canadian Coast Guard icebreaker, John A. MacDonald in the Eastern Canadian Arctic. Between Jul. 1991 and Jun. 1992, the received signal strengths were measured at Nanisivik, Baffin Island. The purposes of this work were to check the accuracy and estimate variances of the Naval Ocean Systems Center's (NOSC) Long Wave Propagation Capability (LWPC) predictions in the Canadian Arctic and to gather ionospheric storm data. In addition, the NOSC data taken at Fort Smith and our data at Nanisivik were used to test the newly developed Longwave Noise Prediction (LNP) program and the CCIR noise predictions, at 21.4 and 24.0 kHz. The results of the work presented and discussed in this paper show that in general the LWPC predicts accurate values of received signal strength in the Canadian Arctic with standard deviations of 1 to 2 dB over several months. Ionospheric storms can gauge the received signal strengths to decrease some 10 dB for a period of several hours or days. However, the effects of these storms are highly dependent on the propagation path. Finally the new LNP atmospheric noise model predicts lower values of noise in the Arctic than the CCIR model and our limited measurements tend to support these lower values.
Webb, Tracy; Di Francesco, James; Matthews, Brenda; Murray, Norm; Scott, Douglas; Wilson, Christine
We survey the present landscape in submillimetre astronomy for Canada and describe a plan for continued engagement in observational facilities to ~2020. Building on Canada's decadal Long Range Plan process, we emphasize that continued involvement in a large, single-dish facility is crucial given Canada's substantial investment in ALMA and numerous PI-led submillimetre experiments. In particular, we recommend: i) an extension of Canadian participation in the JCMT until at least the unique JCMT Legacy Survey program is able to realize the full scientific potential provided by the world-leading SCUBA-2 instrument; and ii) involvement of the entire Canadian community in CCAT, with a large enough share in the partnership for Canadian astronomers to participate at all levels of the facility. We further recommend continued participation in ALMA development, involvement in many focused PI-led submillimetre experiments, and partnership in SPICA.
Rolfson, Ola; Eresian Chenok, Kate; Bohm, Eric; Lübbeke, Anne; Denissen, Geke; Dunn, Jennifer; Lyman, Stephen; Franklin, Patricia; Dunbar, Michael; Overgaard, Søren; Garellick, Göran; Dawson, Jill
The International Society of Arthroplasty Registries (ISAR) Steering Committee established the Patient-Reported Outcome Measures (PROMs) Working Group to convene, evaluate, and advise on best practices in the selection, administration, and interpretation of PROMs and to support the adoption and use of PROMs for hip and knee arthroplasty in registries worldwide. The 2 main types of PROMs include generic (general health) PROMs, which provide a measure of general health for any health state, and specific PROMs, which focus on specific symptoms, diseases, organs, body regions, or body functions. The establishment of a PROM instrument requires the fulfillment of methodological standards and rigorous testing to ensure that it is valid, reliable, responsive, and acceptable to the intended population. A survey of the 41 ISAR member registries showed that 8 registries administered a PROMs program that covered all elective hip or knee arthroplasty patients and 6 registries collected PROMs for sample populations; 1 other registry had planned but had not started collection of PROMs. The most common generic instruments used were the EuroQol 5 dimension health outcome survey (EQ-5D) and the Short Form 12 health survey (SF-12) or the similar Veterans RAND 12-item health survey (VR-12). The most common specific PROMs were the Hip disability and Osteoarthritis Outcome Score (HOOS), the Knee injury and Osteoarthritis Outcome Score (KOOS), the Oxford Hip Score (OHS), the Oxford Knee Score (OKS), the Western Ontario and McMaster Universities Arthritis Index (WOMAC), and the University of California at Los Angeles Activity Score (UCLA). PMID:27168175
Purpose: Radiation oncology's popularity as a career in Canada has surged in the past 5 years. Consequently, resident numbers in Canadian radiation oncology residencies are at all-time highs. This study aimed to survey Canadian radiation oncology residents about their opinions of their specialty and training experiences. Methods and Materials: Residents of Canadian radiation oncology residencies that enroll trainees through the Canadian Resident Matching Service were identified from a national database. Residents were mailed an anonymous survey. Results: Eight of 101 (7.9%) potential respondents were foreign funded. Fifty-two of 101 (51.5%) residents responded. A strong record of graduating its residents was the most important factor residents considered when choosing programs. Satisfaction with their program was expressed by 92.3% of respondents, and 94.3% expressed satisfaction with their specialty. Respondents planning to practice in Canada totaled 80.8%, and 76.9% plan to have academic careers. Respondents identified job availability and receiving adequate teaching from preceptors during residency as their most important concerns. Conclusions: Though most respondents are satisfied with their programs and specialty, job availability and adequate teaching are concerns. In the future, limited time and resources and the continued popularity of radiation oncology as a career will magnify the challenge of training competent radiation oncologists in Canada
The conference proceedings comprise 34 papers, arranged under the following sessions: Plenary; The international CANDU program; Canadian used fuel management program; Public information advocates; Fuel and electricity supply; In which direction should reactors advance?; Canadian advanced nuclear research programs; International cooperation in operations; Safety in design, operation, regulation; Renovation of operating stations; CNS/CNA luncheon addresses. The individual papers have been abstracted separately
The evolution of the Canadian petrochemical industry was outlined, emphasizing the proximity to feedstocks as the principal advantage enjoyed by the industry over its international competitors. Annual sales statistics for 1995 were provided. Key players in the Canadian petrochemical industry (Nova, Dow, DuPont, Methanex, Esso, Union Carbide, Shell and Celanese), their share of the market and key products were noted. Manufacturing facilities are located primarily in Alberta, southern Ontario and Quebec. The feedstock supply infrastructure, historical and alternative ethane pricing in Canada and the US, the North American market for petrochemicals, the competitiveness of the industry, tax competitiveness among Canadian provinces and the US, the Canada - US unit labour cost ratio, ethylene facility construction costs in Canada relative to the US Gulf Coast, and projected 1997 financial requirements were reviewed. 19 figs
Melloni, Pietro [Unitat de Imatge d' Alta Tecnologia, Centre Diagnostic, Corporacio Parc Tauli, Universitat Autonoma de Barcelona, Sabadell (Barcelona) (Spain)], E-mail: firstname.lastname@example.org; Valls, Rafael; Veintemillas, Maite [Unitat de Imatge d' Alta Tecnologia, Centre Diagnostic, Corporacio Parc Tauli, Universitat Autonoma de Barcelona, Sabadell (Barcelona) (Spain)
The purpose of this study is to describe complications affecting the patella in patients with total or partial knee arthroplasty. We respectively analysed plain-film radiographs, as well as ultrasound images when acquired, in a consecutive series of 1272 patients. The mean interval from knee replacement to patellar complications was 5 years and 7 months (range, 5 months to 14 years). The complications described include fracture, instability, dislocation or luxation, necrosis of the patella, infection of the patella, erosion of the patella, patellar impingement on the prosthesis and patellar or quadricipital tendon tear. We discuss the pathological imaging findings in the patella and their differential diagnosis after knee arthroplasty. Patellar complications after knee arthroplasty are uncommon but often potentially serious.
Fast-track hip and knee arthroplasty aims at giving the patients the best available treatment at all times, being a dynamic entity. Fast-track combines evidence-based, clinical features with organizational optimization including a revision of traditions resulting in a streamlined pathway from...... clinical and organizational aspects of fast-track hip and knee arthroplasty (I–IX). A detailed description of the fast-track set-up and its components is provided. Major results include identification of patient characteristics to predict length of stay and satisfaction with different aspects of the...... hospital stay (I); how to optimize analgesia by using a compression bandage in total knee arthroplasty (II); the clinical and organizational set-up facilitating or acting as barriers for early discharge (III); safety aspects following fast-track in the form of few readmissions in general (IV) and few...
The Canadian Irradiation Centre is a non-profit cooperative project between Atomic Energy of Canada Limited, Radiochemical Company and Universite du Quebec, Institut Armand-Frappier, Centre for Applied Research in Food Science. The Centre's objectives are to develop, demonstrate and promote Canada's radiation processing technology and its applications by conducting applied research; training technical, professional and scientific personnel; educating industry and government; demonstrating operational and scientific procedures; developing processing procedures and standards, and performing product and market acceptance trials. This pamphlet outlines the history of radoation technology and the services offered by the Canadian Irradiation Centre
Van Donkersgoed, J; Jewison, G; M. Mann; Cherry, B; Altwasser, B; Lower, R; Wiggins, K; Dejonge, R; Thorlakson, B; Moss, E.; C. Mills; Grogan, H
A study was conducted in 4 Canadian processing plants in 1995-96 to determine the prevalence of quality defects in Canadian cattle. One percent of the annual number of cattle processed in Canada were evaluated on the processing floor and 0.1% were graded in the cooler. Brands were observed on 37% and multiple brands on 6% of the cattle. Forty percent of the cattle had horns, 20% of which were scurs, 33% were stubs, 10% were tipped, and 37% were full length. Tag (mud and manure on the hide) wa...
Lindberg-Larsen, Martin; Jørgensen, Christoffer C; Bagger, Jens;
Background and purpose - The surgical treatment of periprosthetic knee infection is generally either a partial revision procedure (open debridement and exchange of the tibial insert) or a 2-stage exchange arthroplasty procedure. We describe the failure rates of these procedures on a nationwide...... basis. Patients and methods - 105 partial revisions (100 patients) and 215 potential 2-stage revision procedures (205 patients) performed due to infection from July 1, 2011 to June 30, 2013 were identified from the Danish Knee Arthroplasty Register (DKR). Failure was defined as surgically related death...
An overview is provided of the global oil and gas market, industry, reserves, and factors affecting the market's instability. The Canadian oil and gas sector is then profiled. Research and technology strategies in the global oil and gas sector are reviewed in the areas of increasing supplies, improving energy efficiency, developing alternative energy sources, mitigating environmental impacts, and developing new products and services. Finally, research, development, and technology strategies in the Canadian oil and gas sector are evaluated, including private sector research and development (R ampersand D) government support programs, and technology opportunities for the industry in refining, in-situ oil sands production, ultrasour gas production, and downstream gas processing. Total R ampersand D spending by the Canadian oil and gas industry is only ca $300 million/y, with most small to medium-size companies doing little R ampersand D. Since 64% of the Canadian petroleum sector is foreign owned, decisions to increase R ampersand D investment must involve foreign decision makers. The focus of Canadian R ampersand D tends to be upstream-oriented and on the exploitation of unconventional resources, notably the oil sands. Opportunities also exist in downstream R ampersand D such as alternative fuels and energy systems management. Since upstream R ampersand D is a risky long-term proposition, the roles of resource companies, refiners, research institutions, and Canadian and overseas governments must be defined to ensure that research efforts are coordinated and costs are shared equitably. This will likely require a concerted action plan specifying technology goals, memoranda of understanding between all the players, and reasonable accountability levels. 19 refs., 10 tabs
Full Text Available Arthritis is a disease that acts irreversibly on joint surfaces with significant consequences especially in the third quarter of life. About 7% of our population is affected by arthritis localized at a certain level and stage of development, and this percentage is expected to reach a much higher value in future years. Aim: The aim of this study is to propose a rehabilitation program for functional recovery after total hip arthroplasty and a set of recommendations for post surgery period. Material and methods: There were included 13 subjects (10 female and 3 male aged between 51 and 78 years old, ready for total hip arthroplasty with uncemented prosthesis. The subjects were selected in Orthopaedics and Traumatology department of Military Clinical Emergency Hospital ”Dr. Victor Popescu” Timisoara. The evaluations regarding programs’ efficiency were made using 3 questionnaires (Oxford Hip Score, Harris Hip Score, Outcome Hip Score and goniometry. The subjects were tested initially before the surgery and 3 times after (at one month, at 3 months and at 6 months. Results: The results showed a remarcable increase for the scores of majority, in both questionnaire and goniometry values. Conclusions: functional rehabilitation exercises proved to be particularly important in regaining independence, control of the prosthetic leg, pain reduction and functional and social reintegration.
An emerging group of leaders in Canadian education has attracted thousands of followers. They've made Twitter an extension of their lives, delivering twenty or more tweets a day that can include, for example, links to media articles, research, new ideas from education bloggers, or to their own, or simply a personal thought. At their best,…
Small, J. M.
A survey of 67 Canadian university vice presidents and 66 deans concerning reform in recent years found that the many changes reported were modest and reactive rather than bold and proactive. Most common changes involved strategic planning, retrenchment, curriculum expansion, response to enrollment changes, administrative restructuring, and more…
A wide ranging discussion about the factors that have influenced oil and natural gas prices, the differences of the Canadian market from international markets, the differences between eastern and western Canadian markets, and shareholders' perspectives on recent commodity price developments was presented. Developments in the OPEC countries were reviewed, noting that current OPEC production of 25 mmbbls is about 60 per cent higher than it was in 1985. It is expected that OPEC countries will continue to expand capacity to meet expected demand growth and the continuing need created by the UN embargo on Iraqi oil sales. Demand for natural gas is also likely to continue to rise especially in view of the deregulation of the electricity industry where natural gas may well become the favored fuel for incremental thermal generation capacity. Prices of both crude oil and natural gas are expected to hold owing to unusually low storage levels of both fuels. The inadequacy of infrastructure, particularly pipeline capacity as a key factor in the Canadian market was noted, along with the dynamic that will emerge in the next several years that may have potential consequences for Canadian production - namely the reversal of the Sarnia to Montreal pipeline. With regard to shareholders' expectations the main issues are (1) whether international markets reach back to the wellhead, hence the producer's positioning with respect to transportation capacity and contract portfolios, and (2) whether the proceeds from increased prices are invested in projects that are yielding more than the cost of capital. 28 figs
In this thesis, different aspects that are related to the survivorship and clinical outcome in uncemented total hip arthroplasty are analysed. In Chapter 2, the survival rate, Harris Hip score and radiographic features of a proximally hydroxyapatite coated titanium alloy femoral stem (Bi-Metric, Bio
Full Text Available Arthroplasty is used when there is irreversible damage to the articular cartilage of the knee. It involves implanting a bicompartimental (femoral and tibial components or a tricompartimental (femoral, tibial and patellar components prosthesis. It is a very invasive and costly operation, so our objective was to evaluate the necessity of the patellar component.
Boeckstyns, Michel E H; Herzberg, Guillaume
Background and Literature Review Periprosthetic osteolysis (PPO) after second- or third-generation total wrist arthroplasty (TWA), with or without evident loosening of the implant components, has previously been reported in the literature, but rarely in a systematic way. Purpose The purpose of th...
Ho, J.; Meis, J.F.G.M.; Nabuurs-Franssen, M.H.; Voss, A.
Despite of the steady decrease of surgical site infection (SSI) over the last two decades, the incidence of SSI after hip and knee arthroplasty has recently surged. This may be explained by technical changes that may result in an increased risk of SSI, such as the broad implementation of fast track
Nilsdotter, Anna K; Toksvig-Larsen, Sören; Roos, Ewa
to pain and physical function after knee arthroplasty. PATIENTS AND METHODS: 102 patients (39 men) with knee osteoarthritis and who were assigned for TKR (mean age 71 (51-86) years) were investigated with KOOS, SF-36, and additional questions concerning physical activity level, expectations...
Husted, Henrik; Otte, Niels Kristian Stahl; Kristensen, Billy B;
Abstract Background and purpose Fast-track surgery has reduced the length of hospital stay (LOS), morbidity, and convalescence in primary hip and knee arthroplasty (TKA). We assessed whether patients undergoing revision TKA for non-septic indications might also benefit from fast-track surgery...
Full Text Available Scientific background: Man-made joints (joint endoprostheses, including knee endoprostheses, are used in some irreversible diseases of the human joints. The implantation of joint endoprostheses (arthroplasty is associated with an increased risk for infection. To prevent infections, different interventions without and with the use of antibiotics (hygiene procedures and antibiotic prophylaxis are used. The benefits of these interventions are not clear yet. Research questions: The presented report addresses the questions regarding the medical effectiveness, the cost-effectiveness as well as the ethical, social and legal aspects related to the use of interventions to prevent infections after knee arthroplasty. Methods: A systematic literature search is conducted in the medical electronic databases MEDLINE, EMBASE, SciSearch etc. in June 2009 and has been completed by a hand search. The analysis includes publications which describe and/or evaluate clinical data from randomized controlled trials (RCT, systematic reviews of RCT, registers of endoprostheses or databases concerning interventions to prevent infections after knee arthroplasty. The conducted literature search also aims to identify health-economic studies and publications dealing explicitly with ethical, social or legal aspects in the use of interventions to prevent infections after knee arthroplasty. The synthesis of information from different publications has been performed qualitatively. Results: The systematic literature search yields 1,030 hits. Based on the predefined inclusion and exclusion criteria a total of ten publications is included in the analysis. The presented report does not find evidence of the effectiveness of different hygiene interventions with a high evidence level. Most of the unspecific interventions are recommended on the basis of results from non-RCT, from studies for other clinical indications and/or for clinically not relevant endpoints, as well as on the basis of
Letter, Haley P; Limback, Joseph; Wasyliw, Christopher; Bancroft, Laura; Scherer, Kurt
Reverse total shoulder arthroplasty is becoming a common form of shoulder arthroplasty that is often performed in the setting of rotator cuff pathology. Infection is a rare complication but is more common in reverse total shoulder arthroplasty than in hemiarthroplasty or anatomic total shoulder arthroplasty. We present the case of a 69-year-old patient with a reverse total shoulder arthroplasty who presented with purulent drainage from the skin of his anterior shoulder. Computed tomography arthrogram confirmed the presence of a synovial cutaneous fistula. Synovial cutaneous fistula is a rare variant of periprosthetic infection that, to our knowledge, has not been described previously in the setting of a reverse total shoulder arthroplasty. Computed tomography arthrogram proved to be a reliable method for confirming the diagnosis and was used for operative planning to remove the hardware. PMID:27257460
Garcia, Flávio Luís; Marins, Murilo Humberto Tobias; Raddi, Thiago Bortoletto; Picado, Celso Hermínio Ferraz
OBJECTIVE: To evaluate the efficacy and safety of unfractionated heparin associated with mechanical prophylaxis as a method for preventing venous thromboembolism in hip arthroplasty. METHOD: We retrospectively reviewed the records of 181 hip arthroplasties out of 216 consecutive cases performed over a period of 39 months in our hospital. We excluded 35 cases due to non-adherence to the standardized method of thromboprophylaxis or loss to follow-up. All arthroplasties evaluated completed one-y...
Saffo, Zaid; Ognjan, Anthony
The most common organisms causing prosthetic knee joint infections are staphylococci. However, arthroplasty infections with atypical microbial pathogens, such as Mycobacteria can occur. Due to the rarity of mycobacterial prosthetic joint infections, diagnosis, treatment, and management of these atypical infections represent a clinical challenge. A 71-year old female post-operative day 40 after a left total knee arthroplasty was hospitalized secondary to left knee pain and suspected arthroplasty infection. She had failed outpatient oral antimicrobial treatment for superficial stitch abscess; and outpatient IV/Oral antimicrobials for a clinical postoperative septic bursitis. Ultimately, resection arthroplasty with operative tissue acid fast bacterial cultures demonstrated growth of the Mycobacterium smegmatis group. Post-operatively, she completed a combination course of oral doxycycline and levofloxacin and successfully completed a replacement arthroplasty with clinical and microbial resolution of the infection. To our knowledge, literature review demonstrates three case of knee arthroplasty infection caused by the Mycobacterium smegmatis group. Correspondingly, optimal surgical procedures and antimicrobial management including antimicrobial selection, treatment duration are not well defined. Presently, the best treatment options consists of two step surgical management including prosthesis hardware removal followed by extended antimicrobial therapy, followed by consideration for re-implantation arthroplasty. Our case illustrates importance of considering atypical mycobacterial infections in post-operative arthroplasty infections not responding to traditional surgical manipulations and antimicrobials. For an arthroplasty infection involving the atypical Mycobacterium smegmatis group, two step arthroplasty revision, including arthroplasty resection, with a combination of oral doxycycline and levofloxacin can lead to successful infection resolution, allowing for a
Dehghani, M.; E. Rouzbahani
AbstractBackground and Purpose: Osteoarthritis (OA) of elbow is not common but can be disabling, if it is not responding to non-operative methods. Several surgical methods are suggested (joint debridment, ulnohumeral arthroplasty, fusion and total elbow arthroplasty). In this study, we evaluated the result of ulnohumeral arthroplasty in seven patients.Materials and Methods: Seven patients (5 males and 2 females) mean age 46 years of age (56-43), during 1378-1385 were operated on with the same...
Davies, B L; Niday, P A; Nimrod, C A; Drake, E R; Sprague, A E; Trépanier, M J
OBJECTIVES: To determine the current status of electronic fetal monitoring (EFM) in Canadian teaching and nonteaching hospitals, to review the medical and nursing standards of practice for EFM and to determine the availability of EFM educational programs. DESIGN: National survey in 1989. PARTICIPANTS: The directors of nursing at the 737 hospitals providing obstetric care were sent a questionnaire and asked to have it completed by the most appropriate staff member. The response rate was 80.5% ...
Caldwell, J. Paul; Kain, Brian F.; Robert C. McDonald
In February 1985, a Canadian medical relief team was established in a northern Ethiopia refugee camp. Volunteer physicians, nurses, and support staff have worked in the camp since February 1985. Their activities range from supervising intensive feeding programs, to controlling infections, to educating patients. About 300-400 patients visit the outpatient clinics daily. Malnutrition, vitamin A and B deficiencies, scurvy, rickets, gastroenteritis, malaria, leprosy, tuberculosis, pneumonia, trac...
On March 13 of 1991, the Prime Minister of Canada, Brian Mulroney and the President of the United States of America, George Bush, signed an Agreement on Air Quality. This agreement enshrines Principle 21 of the 1972 Stockholm Declaration which states that countries are to ensure that activities within their jurisdiction do not cause damage to the environment of another country. This agreement also includes provisions for controlling acid rain. The Agreement on Air Quality followed years of discussion between the two countries and is a significant milestone in the history of Canadian acid rain policy. This paper begins by describing Canadian acid rain policy and its evolution. The paper also outlines the Canada-United States Air Quality Agreement and the effect of the acid rain provisions on deposition in Canada. Finally, it considers the future work that must be undertaken to further resolve the acid rain problem. 8 refs., 5 figs., 1 tab
For two weeks in August, 1975 more than 140 mathematicians and other scientists gathered at the Universite de Sherbrooke. The occasion was the 15th Biennial Seminar of the Canadian Mathematical Congress, entitled Mathematics and the Life Sciences. Participants in this inter disciplinary gathering included researchers and graduate students in mathematics, seven different areas of biological science, physics, chemistry and medical science. Geographically, those present came from the United States and the United Kingdom as well as from academic departments and government agencies scattered across Canada. In choosing this particular interdisciplinary topic the programme committee had two chief objectives. These were to promote Canadian research in mathematical problems of the life sciences, and to encourage co-operation and exchanges between mathematical scientists" biologists and medical re searchers. To accomplish these objective the committee assembled a stim ulating programme of lectures and talks. Six ...
A primer on financing international operations by Canadian corporations was provided. Factors affecting the availability to project finance (location, political risk), the various forms of financing (debt, equity, and combinations), the main sources of government backed financing to corporations (the International Finance Corporation) (IFC), the European Bank for Reconstruction and Development (EBRD), the Asian Development Bank (ADB), the Overseas Property Insurance Corporation (OPIC), government or agency guarantees, political risk coverage, the use of offshore financial centres, and the where, when and how these various organizations operate, were reviewed. Examples of all of the above, taken from the experiences of Canadian Occidental Petroleum of Calgary in the U.S., in South America, in the Middle and Far East, and in Kazakhstan, were used as illustrations. figs
The Petroleum History Bibliography includes a list of more than 2,000 publications that record the history of the Canadian petroleum industry. The list includes books, theses, films, audio tapes, published articles, company histories, biographies, autobiographies, fiction, poetry, humour, and an author index. It was created over a period of several years to help with projects at the Petroleum History Society. It is an ongoing piece of work, and as such, invites comments and additions.
Alcala, Yvonne; Olivecrona, Henrik; Olivecrona, Lotta; Noz, Marilyn E.; Maguire, Gerald Q., Jr.; Zeleznik, Michael P.; Sollerman, Christer
The purpose of this study was to extend previous work to detect migration of total wrist arthroplasty non-invasively, and with greater accuracy. Two human cadaverous arms, each with a cemented total wrist implant, were used in this study. In one of the arms, 1 mm tantalum balls were implanted, six in the carpal bones and five in the radius. Five CT scans of each arm were acquired, changing the position of the arm each time to mimic different positions patients might take on repeated examinations. Registration of CT volume data sets was performed using an extensively validated, 3D semi-automatic volume fusion tool in which co-homologous point pairs (landmarks) are chosen on each volume to be registered. Three sets of ten cases each were obtained by placing landmarks on 1) bone only (using only arm one), 2) tantalum implants only, and 3) bone and tantalum implants (both using only arm two). The accuracy of the match was assessed visually in 2D and 3D, and numerically by calculating the distance difference between the actual position of the transformed landmarks and their ideal position (i.e., the reference landmark positions). All cases were matched visually within one width of cortical bone and numerically within one half CT voxel (0.32 mm, p = 0.05). This method matched only the bone/arm and not the prosthetic component per se, thus making it possible to detect prosthetic movement and wear. This method was clinically used for one patient with pain. Loosening of the carpal prosthetic component was accurately detected and this was confirmed at surgery.
Edwards, Brian D.; Childs, Jonathan R.; Triezenberg, Peter J.; Danforth, William W.; Gibbons, Helen
In August and September 2010, the U.S. Geological Survey, in cooperation with Natural Resources Canada, Geological Survey of Canada, conducted bathymetric and geophysical surveys in the Beaufort Sea and eastern Arctic Ocean aboard the U.S. Coast Guard Cutter Healy. The principal objective of this mission to the high Arctic was to acquire data in support of a delineation of the outer limits of the U.S. and Canadian Extended Continental Shelf in the Arctic Ocean, in accordance with the provisions of Article 76 of the United Nations Convention on the Law of the Sea. The Healy was accompanied by the Canadian Coast Guard icebreaker Louis S. St-Laurent. The scientific parties on board the two vessels consisted principally of staff from the U.S. Geological Survey (Healy), and the Geological Survey of Canada and the Canadian Hydrographic Service (Louis). The crew also included marine-mammal observers, Native-community observers, ice observers, and biologists conducting research of opportunity in the Arctic Ocean. Despite interruptions necessitated by three medical emergencies, the joint survey proved largely successful. The Healy collected 7,201 trackline-kilometers of swath (multibeam) bathymetry (47,663 square kilometers) and CHIRP subbottom data, with accompanying marine gravity measurements, and expendable bathythermograph data. The Louis acquired 3,673 trackline-kilometers of multichannel seismic (airgun) deep-penetration reflection data along 25 continuous profiles, as well as 34 sonobuoy refraction stations and 9,500 trackline-kilometers of single-beam bathymetry. The coordinated efforts of the two vessels resulted in seismic-reflection-profile data that were of much higher quality and continuity than if the data had been acquired with a single vessel alone. The equipment-failure rate of the seismic equipment aboard the Louis was greatly reduced when the Healy led as the ice breaker. When ice conditions proved too severe to deploy the seismic system, the Louis led
Groundwaters have been sampled from depths greater than 1000 m within the Canadian Shield. The samples were obtained from boreholes in mines and from test drilling programs carried out as part of the Canadian Nuclear Fuel Waste Management Program. At the depths explored, water is found in fractures, shear zones and similar structural features. The salinity of the water is frequently very high, with total dissolved solids often exceeding 200 g.L-1. These saline waters can be classified as Ca-Na-Cl brines. Isotopic analyses for 2H and 18O show that these fluids are not modern, local meteoric waters which dissolve salts in sedimentary, metasedimentary or metamorphic rocks. The chemical and isotopic data suggest that all saline waters analyzed to date have a similar origin. This source is not well-understood but could be highly modified Paleozoic seawater, residual metamorphic fluids, or less likely, groundwaters that have been in contact with the rocks in the Canadian Shield for millions of years. In all cases the fluids appear to have been isolated from the biosphere for geological time periods. The existence of these highly saline fluids influences the Nuclear Fuel Waste Management Program in several areas. A major concern is the corrosion resistance of the radioactive waste containers. Saline waters may also influence the buffer and backfill and vault sealing materials, the rock mass and the waste form itself, although the effects may not always be deleterious. Corrosion of underground test equipment during the geoscience research phase is also a concern
Jauregui, Julio J; Boylan, Matthew R; Kapadia, Bhaveen H; Naziri, Qais; Maheshwari, Aditya V; Mont, Michael A
With recent increases in life expectancy in the United States, the number of nonagenarians (age 90-99 years) presenting for lower extremity joint arthroplasty (TJA) will likely rise. Utilizing the National Surgical Quality Improvement Program database, we compared 30-day outcomes of TJA between nonagenarians and controls (age <90 years). Nonagenarians had lower mean BMI, no difference in mean number of comorbidities, and shorter mean operation time. Compared to controls, nonagenarians had longer mean length-of-stay, higher readmission rate, and higher risk of postoperative adverse events. Given these findings, orthopaedic surgeons should be aware of the increased risks of TJA in nonagenarians, and should discuss these risks with potential surgical candidates during a shared decision-making process. PMID:26169454
M. Ramezanian T. Yavary
Full Text Available Temporomandibular joint ankylosis causes limitation in mouth opening and establishes severe deformity and asymmetry in patient’s face, especially in children. Surgery is the only treatment. This study was conducted to compare the effect of two surgical approaches, gap arthropasty and interpositional gap arthroplasty, on rate of maximum interincisal opening in temporomandibular joint ankylosis. We also evaluated the relapse rate of these two surgical approaches. A total of 48 patients were enrolled in this cross-sectional experimental study. Range of mouth opening was evaluated before and during and one year after surgery. All other related information was also recorded. Mean age of the study population was 19.5 8.9 years. Of those, 21 (41% were male and 27 (59% were female. For 26 patients (54.2% interpositional gap arthroplasty was accomplished and for 22 patients (45.8% gap arthropasty was performed. Mean range of mouth opening before and after surgery was 10.3 3.9 and 33.9 5.2 in interpositional gap arthroplasty, 8.7 4.9 and 32.1 7.8 in gap arthropasty, respectively. The results showed that the range of mouth opening significantly increases after ankylosis surgery in both surgical approaches but improvement was less in interpositional gap arthroplasty. In regards to recurrence, results of interpositional gap arthroplasty were superior to gap arthropasty.
Liljensøe, A.; Laursen, J. O.; Bliddal, H.;
implement an intensive weight loss program in order to reduce preoperative body weight of obese patients before TKA surgery. The primary aim of the Weight Loss Intervention before Total Knee Arthroplasty (WITKA) study is to investigate whether weight loss interventions before total knee arthroplasty (TKA......) will improve QoL and physical function 1 year after surgery. Methods: We conducted a single-blind, randomized study. Eligible patients were scheduled for TKA due to osteoarthritis (OA) of the knee and obesity (BMI >30kg/m2). Participants were randomized to either a control group that followed the...... standard care or a weight loss group that followed a low-energy diet (810 kcal/day) 8 weeks before surgery. Outcomes were assessed before intervention for the weight loss group, and within 1 week preoperatively for both the weight loss group and the control group. The primary outcome in the WITKA study was...
Hiranandani, Vanmala Sunder
This paper is in response to recent calls to conceptualize and articulate Canadian perspectives and experiences in international social work, given that the Canadian standpoint has been lacking in international social work literature. This paper contends that it is imperative, first of all, to cr...
Matthew J. Teusink
Full Text Available Cost in shoulder surgery has taken on a new focus with passage of the Patient Protection and Affordable Care Act. As part of this law, there is a provision for Accountable Care Organizations (ACOs and the bundled payment initiative. In this model, one entity would receive a single payment for an episode of care and distribute funds to all other parties involved. Given its reproducible nature, shoulder arthroplasty is ideally situated to become a model for an episode of care. Currently, there is little research into cost in shoulder arthroplasty surgery. The current analyses do not provide surgeons with a method for determining the cost and outcomes of their interventions, which is necessary to the success of bundled payment. Surgeons are ideally positioned to become leaders in ACOs, but in order for them to do so a methodology must be developed where accurate costs and outcomes can be determined for the episode of care.
Kjaersgaard-Andersen, P.; Frich, Lars Henrik; Sjøbjerg, J.O.;
the glenohumeral and/or the glenoacromial space. There was no correlation between shoulder pain and the development of ossification. Shoulders with grade III heterotopic bone formation had a limited range of active elevation compared with shoulders without or with only a milder lesion. Men and......The incidence and location of heterotopic bone formation following total shoulder arthroplasty were evaluated in 58 Neer Mark-II total shoulder replacements. One year after surgery, 45% had developed some ectopic ossification. In six shoulders (10%) the ossifications roentgenographically bridged...... patients with osteoarthritis of the shoulder joint were significantly disposed to the development of heterotopic bone. Heterotopic bone formation following total shoulder arthroplasty is frequent, but disabling heterotopic ossifications seem to be rare....
Thromboembolic events are a post-operative complication of arthroplasty surgery for up to 3 months. The incidence however, is not fully known. Some form of prophylaxis should be provided to all arthroplasty patients. Clinicians are wary of side effects, compliance profile and the associated cost. The objective of this study is to investigate practice patterns and their relevance to 3 risk groups. Ninety questionnaires were sent to orthopaedic surgeons with 3 hypothetical clinical scenarios and 10 prophylaxis regimes for thromboembolism across different risk groups. The response rate was 81\\/90 (90%). The most popular options in all 3 cases were early mobilisation, thrombo-embolism deterrant (TED) stockings and low molecular weight heparin (LMWH) (51\\/81, 62% of all cases). An inconsistent relationship exists between preferred practice and relevant guidelines. Preferred practice does not correlate with each level of risk.
Husted, Henrik; Otte, Niels Kristian Stahl; Kristensen, Billy B; Kehlet, Henrik
Abstract Background and purpose Fast-track surgery has reduced the length of hospital stay (LOS), morbidity, and convalescence in primary hip and knee arthroplasty (TKA). We assessed whether patients undergoing revision TKA for non-septic indications might also benefit from fast-track surgery....... Methods 29 patients were operated with 30 revision arthroplasties. Median age was 67 (34-84) years. All patients followed a standardized fast-track set-up designed for primary TKA. We determined the outcome regarding LOS, morbidity, mortality, and satisfaction. Results Median LOS was 2 (1-4) days...... undergoing revision TKA for non-septic reasons may be included in fast-track protocols. Outcome appears to be similar to that of primary TKA regarding LOS, morbidity, and satisfaction. Our findings call for larger confirmatory studies and studies involving other indications (revision THA, 1-stage septic...
When the Canadian Nuclear industry launched its information program, it was found that women were less supportive of nuclear power. Reasons were difficult to pin-point and hovered around individual perceptions and misunderstandings. The basis of the Canadian Nuclear Association Public Information program lies with its target: men and women equally. The Program Takes Into Consideration The major characteristics and nuances of these two groups. Female Characteristics from Canadian Perspective are: Strong sense of generation continuity; Detail and task oriented; Nontechnical training; Strong sense of individuality (local). Patterns of behavoiur in relation to nuclear industry for women in Canada are: not prone to take risks; micro-economic approach to decisions (local); little confidence in technology; pragmatic and balanced in their choices (local). Major concerns of Canadian women are: Safety of power plants; disposal of waste; peace and environment versus growth and energy need; trustworthiness of the industry. Canadian nuclear association public information program communirations -approach covers: the right message, down to earth language, factual and real information for real choices, effective reach: spokespeople and media buy. Results of polls: show thtt women are less in favour of Nuclear energy in Canada today than men, consider NPPs less important in Meeting Canada's energy need in the years ahead; and think that Nuclear Energy is not a choice for Canada of all sources of energy available for large scale use
Breitenseher, M.J. [Abteilung fuer Osteologie, Universitaetsklinik fuer Radiodiagnostik, Wien (Austria); Klinische Abteilung fuer Radiodiagnostik chirurgischer Faecher, Universitaetsklinik fuer Radiodiagnostik, Wien (Austria); Ludwig-Boltzmann-Institut fuer Radiologische Tumordiagnostik, Wien (Austria); Mayerhoefer, M. [Klinische Abteilung fuer Radiodiagnostik chirurgischer Faecher, Universitaetsklinik fuer Radiodiagnostik, Wien (Austria); Gottsauner-Wolf, F. [Universitaetsklinik fuer Orthopaedie, Wien (Austria); Abteilung fuer Orthopaedie, Allgemeines oeffentliches KH, Krems (Austria); Krestan, C.; Imhof, H. [Abteilung fuer Osteologie, Universitaetsklinik fuer Radiodiagnostik, Wien (Austria); Toma, C.D. [Universitaetsklinik fuer Orthopaedie, Wien (Austria)
Hip arthroplasty has become a common and still increasing procedure for the treatment of osteoarthritis, advanced head necrosis, post-inflammatory arthritis or rheumatoid arthritis.Radiography is the most important imaging modality for monitoring the normal, asymptomatic hip arthroplasty. Radiographs are obtained at the end of a surgical treatment, to exclude complications like fracture or component misplacement. In the follow-up radiographs are used for the diagnosis of loosening and infection of the hip arthroplasty as well as soft tissue ossification. Together with the history and clinical information, the analysis of morphological findings allows to find the grade of loosening. MRI has been advocated in the diagnosis of infection, in particular in the localisation of soft tissue involvement.Imaging, especially by radiographs, is used for the evaluation of the normal and complicated follow-up of hip arthroplasty. (orig.) [German] Die Implantation einer Hueftgelenkprothese ist eine immer haeufiger verwendete medizinische Massnahme bei Erkrankungen des Hueftgelenks wie Koxarthrose, Hueftkopfnekrose, postentzuendliche Arthrose oder rheumatoide Arthritis.Von den bildgebenden Methoden ist das konventionelle Roentgen die wichtigste Untersuchung, um den normalen Behandlungsverlauf einer Hueftprothese zu monitieren. Das Roentgen kann fruehzeitige Komplikationen wie Fraktur oder Fehlposition intraoperativ oder eine Luxation postoperativ erfassen. Im laengerfristigen Verlauf ist das Roentgen zur Diagnose von Infektion, Prothesenlockerung und Weichteilverknoecherung geeignet. In Zusammenschau mit der Klinik ermoeglicht die Analyse morphologisch-radiologischer Details, die Wahrscheinlichkeit einer Lockerung abzuschaetzen. Bei Protheseninfektionen ermoeglicht die MRT die Lokalisation von Weichteilentzuendungen.Die Methoden der Bildgebung, besonders das Roentgen, haben in der Beurteilung des normalen und in der Diagnose des komplizierten Verlaufes einen hohen Stellenwert
QIAN Qi-rong; WU Hai-shan; ZHOU Wei-jiang; LI Xiao-hua; WU Yu-li
Objective: To explore arthroplasty in treating 3- and 4-part fractures of the proximal humerus.Methods: A total of 132 patients with proximal humeral fractures were treated in our hospital from July 1997 to February 2003. According to Neer's classification, the fractures of 45 patients (14 males and 31 females, aged 31-78 years, 56.1 years±7.8 years on an average) belonged to 3- or 4-part fractures (10 patients with 4-part fracture and 35 with 3-part comminuted fracture) and they were treated with shoulder joint arthroplasty. Unipolar prosthesis replacement of the head of humerus was made in 28 cases, while bipolar prosthesis replacement in 2 cases and total shoulder joint replacement in 15 cases. Results: During the follow-up period (range: 12-72 months, mean: 37.3 months±4.1 months), among the 45 patients who suffered from fractures of the proximal humerus and underwent arthroplasty surgery, 44 patients (97.8%) had no postoperative pain and were satisfied with the active range of motion and with the whole treatment results. And radiography showed that the prostheses were at their good position. One patient had postoperative pain because he had so narrow medullary cavity that the humeral prosthesis could not be put deeply enough and the prosthesis head was a little higher over the anatomic level. He did not have good postoperative active range of motion, either. Then he received a review surgery and got satisfied results. Temporary shoulder stiffness was observed in one patient. Manual release of these adhesions improved the shoulder function. No evidence of nonunion of the fracture segments around the humeral prosthesis stem was found. Conclusions: Shoulder arthroplasty is a dependable method to restore the comfort and function of the should joints of the patients with 3- or 4-part fractures of the proximal humerus.
Radoičić Dragan; Popović Zoran; Barjaktarović Radoslav; Marinković Jugoslav
Background/Aim. Infected total knee arthroplasty (TKA) is a topic of great importance, because its diagnosing and treatment requires a lot of resources, and often has an unsatisfactory outcome. The aim of this study was to analyze the outcome of the treatment of infection developed following TKA. Methods. This retrospective study of infected TKAs was performed in the period from 1998 to 2008 in the Orthopedics & Traumatology Clinic of the Military Medical Academy (MMA) in Belgrade. ...
One of the most important issues in the modern total hip arthroplasty (THA) is the bearing surface. Extensive research on bearing surfaces is being conducted to seek an ideal bearing surface for THA. The ideal bearing surface for THA should have superior wear characteristics and should be durable, bio-inert, cost-effective, and easy to implant. However, bearing surfaces that are currently being implemented do not completely fulfill these requirements, especially for young individuals for whom...
Analytical, scientific, and design computer programs (referred to in this paper as 'scientific computer programs') are developed for use in a large number of ways by the user-engineer to support and prove engineering calculations and assumptions. These computer programs are subject to frequent modifications inherent in their application and are often used for critical calculations and analysis relative to safety and functionality of equipment and systems. N286.7-99(4) was developed to establish appropriate quality management system requirements to deal with the development, modification, and application of scientific computer programs. N286.7-99 provides particular guidance regarding the treatment of legacy codes
This directory has been prepared to help potential photovoltaic (PV) customers identify Canadian-based companies who can meet their needs, and to help product manufacturers and distributors identify potential new clients and/or partners within the PV industry for new and improved technologies. To assist the reader, an information matrix is provided that identifies the product and service types offered by each firm and its primary clients served. A list of companies by province or territory is also included. The main section lists companies in alphabetical order. Information presented for each includes address, contact person, prime activity, geographic area served, languages in which services are offered, and a brief company profile
Canada is a multicultural country which was mainly established by immigrants. Just because of that, Canadian govern⁃ment has carried out the policy of multiculturalism since1970s. However, it has encountered many problems such as policy con⁃flicts, national identity, democracy-inquiry and racial discrimination, etc. Hence the Canadian multiculturalism has been in a di⁃lemma.
This report describes Canadian expertise in fusion fuels technology and remote handling. The Canadian Fusion Fuels Technology Project (CFFTP) was established and is funded by the Canadian government, the province of Ontario and Ontario Hydro to focus on the technology necessary to produce and manage the tritium and deuterium fuels to be used in fusion power reactors. Its activities are divided amongst three responsibility areas, namely, the development of blanket, first wall, reactor exhaust and fuel processing systems, the development of safe and reliable operating procedures for fusion facilities, and, finally, the application of these developments to specific projects such as tritium laboratories. CFFTP also hopes to utilize and adapt Canadian developments in an international sense, by, for instance, offering training courses to the international tritium community. Tritium management expertise is widely available in Canada because tritium is a byproduct of the routine operation of CANDU reactors. Expertise in remote handling is another byproduct of research and development of of CANDU facilities. In addition to describing the remote handling technology developed in Canada, this report contains a brief description of the Canadian tritium laboratories, storage beds and extraction plants as well as a discussion of tritium monitors and equipment developed in support of the CANDU reactor and fusion programs. Appendix A lists Canadian manufacturers of tritium equipment and Appendix B describes some of the projects performed by CFFTP for offshore clients
Bamsey, M.; Graham, T.; Stasiak, M.; Berinstain, A.; Scott, A.; Vuk, T. Rondeau; Dixon, M.
applications). To advance the technical readiness for the proposed lunar missions, including a lunar plant growth lander, lunar "salad machine" (i.e. small scale plant production unit) and a full scale lunar plant production system, a suite of terrestrial developments and analogue systems are proposed. As has been successfully demonstrated by past Canadian advanced life support activities, terrestrial technology transfer and the development of highly qualified personnel will serve as key outputs for Canadian advanced life support system research programs. This approach is designed to serve the Canadian greenhouse industry by developing compliance measures for mitigating environmental impact, reducing labour and energy costs as well as improving Canadian food security, safety and benefit northern/remote communities.
Blikman, Tim; Stevens, Martin; Bulstra, Sjoerd K.; van den Akker-Scheek, Inge; Reininga, Inge H. F.
STUDY DESIGN: Psychometric assessment. OBJECTIVES: To determine test-retest reliability and concurrent validity of the International Physical Activity Questionnaire (IPAQ) in patients after total hip arthroplasty or total knee arthroplasty. BACKGROUND: Despite recognized benefits of regular physical
Van Donkersgoed, J; Jewison, G; Mann, M; Cherry, B; Altwasser, B; Lower, R; Wiggins, K; Dejonge, R; Thorlakson, B; Moss, E; Mills, C; Grogan, H
A study was conducted in 4 Canadian processing plants in 1995-96 to determine the prevalence of quality defects in Canadian cattle. One percent of the annual number of cattle processed in Canada were evaluated on the processing floor and 0.1% were graded in the cooler. Brands were observed on 37% and multiple brands on 6% of the cattle. Forty percent of the cattle had horns, 20% of which were scurs, 33% were stubs, 10% were tipped, and 37% were full length. Tag (mud and manure on the hide) was observed on 34% of the cattle. Bruises were found on 78% of the carcasses, 81% of which were minor in severity. Fifteen percent of the bruises were located on the round, 29% on the loin, 40% on the rib, 16% on the chuck, and 0.02% on the brisket. Grubs were observed in 0.02% of the steers, and injection sites were observed in 1.3% of whole hanging carcasses. Seventy percent of the livers were passed for human food and 14% for pet food; 16% were condemned. Approximately 71% of the liver condemnations were due to liver abscesses. Four percent of the heads, 6% of the tongues, and 0.2% of whole carcasses were condemned. The pregnancy rate in female cattle was approximately 6.7%. The average hot carcass weight was 357 kg (s = 40) in steers, 325 kg (s = 41) in heifers, 305 kg (s = 53) in cows, 388 kg (s = 62) in virgin bulls and 340 kg (s = 39) in mature bulls. The average ribeye area in all cattle was 84 cm2 (s = 12); range 29 cm2 to 128 cm2. Grade fat was highly variable and averaged 9 mm (s = 4) for steers and heifers, 6 mm (s = 6) for cows, 5 mm (s = 1) for virgin bulls, and 4 mm (s = 0.5) for mature bulls. The average lean meat yield was 59.7% in cattle (s = 3.4); range 39% to 67%. One percent of the carcasses were devoid of marbling, 1% were dark cutters, and 0.05% of the steer carcasses were staggy. Six percent of the carcasses had poor conformation, 3.7% were underfinished, and 0.7% were overfinished. Yellow fat was observed in 4% of the carcasses; 10% of carcasses were
Full Text Available ... 5, 2009 Welcome to this "OR Live" Webcast presentation brought to you by Zimmer. During the program, ... Thank you for watching this "OR Live" Webcast presentation brought to you by Zimmer. "OR Live" makes ...
An aggressive cogeneration industry has developed in Canada, and is becoming a tool for provincial utilities to manage the procurement of independently generated power, while restricting plant size, maximizing socioeconomic benefit, minimizing environmental impacts and managing their own risks. An overview is presented of the economics of cogeneration in Canada. The Canadian cogeneration industry is driven by 3 key economic factors: utility power sale contracts, fuel pricing, and tax benefits. Utility cogeneration purchases, tax benefits, fuel prices, cogeneration efficiency, fuels, fuel strategies, displacement projects, solid fuel vs natural gas, operating flexibility, gas turbines, heat recovery steam generators, industrial and aeroderivative units, combined cycle steam turbines, steam injection, supplementary or duct firing, financial aspects and project management are discussed. 15 figs., 7 tabs
Bai, Xue Susan [University of Washington, Department of Radiology, Box 357115, Seattle, WA (United States); Petscavage-Thomas, Jonelle M. [Penn State Hershey Medical Center, Department of Radiology, Hershey, PA (United States); Ha, Alice S. [University of Washington, Department of Radiology, Box 354755, Seattle, WA (United States)
Total elbow arthroplasty (TEA) is becoming a popular alternative to arthrodesis for patients with end-stage elbow arthrosis and comminuted distal humeral fractures. Prior outcome studies have primarily focused on surgical findings. Our purpose is to determine the radiographic outcome of TEA and to correlate with clinical symptoms such as pain. This is an IRB-approved retrospective review from 2005 to 2015 of all patients with semiconstrained TEA. All available elbow radiographs and clinical data were reviewed. Data analysis included descriptive statistics and Kaplan-Meier survival curves for radiographic and clinical survival. A total of 104 total elbow arthroplasties in 102 patients were reviewed; 75 % were in women and the mean patient age was 63.1 years. Mean radiographic follow-up was 826 days with average of four radiographs per patient. Seventy TEAs (67 %) developed radiographic complications, including heterotopic ossification (48 %), perihardware lucency (27 %), periprosthetic fracture (23 %), hardware subluxation/dislocation (7 %), polyethylene wear (3 %), and hardware fracture/dislodgement (3 %); 56 patients (55 %) developed symptoms of elbow pain or instability and 30 patients (30 %) underwent at least one reoperation. In patients with radiographic complications, 66 % developed elbow pain, compared to 19 % of patients with no radiologic complications (p = 0.001). Of the patients with radiographic complications, 39 % had at least one additional surgery compared to 0 % of patients without radiographic complications (p = 0.056). Radiographic complications are common in patients after total elbow arthroplasty. There is a strong positive association between post-operative radiographic findings and clinical outcome. Knowledge of common postoperative radiographic findings is important for the practicing radiologist. (orig.)
Full Text Available Children affected by mucopolysaccharidosis (MPS type IH (Hurler Syndrome, an autosomal recessive metabolic disorder, are known to experience a range of musculoskeletal manifestations including spinal abnormalities, hand abnormalities, generalised joint stiffness, genu valgum, and hip dysplasia and avascular necrosis. Enzyme therapy, in the form of bone marrow transplantation, significantly increases life expectancy but does not prevent the development of the associated musculoskeletal disorders. We present the case of a 23-year-old woman with a diagnosis of Hurler syndrome with a satisfactory result following uncemented total hip arthroplasty.
Jenny, Jean-Yves; Müller, Peter E; Weyer, R; John, Michael; Weber, Patrick; Ciobanu, Eugène; Schmitz, Andreas; Bacher, Thomas; Neumann, Wolfram; Jansson, Volkmar
Unicompartmental knee arthroplasty (UKA) is an alternative procedure to high tibial osteotomy. This study assessed the procedure using computer navigation to improve implantation accuracy and presents early radiological results of a group of patients implanted with the univation UKA (B. Braun Aesculap, Tuttlingen, Germany) with navigation instrumentation and a minimally invasive approach. The authors concluded that navigated implantation of a UKA using a nonimage-based system improved radiologic accuracy implantation without significant inconvenience and minimal change in the conventional operating technique. PMID:17407935
Full Text Available A 53-year-old woman developed a vaginal mass following an uncemented total hip arthroplasty. The mass was in direct communication with the hip through an acetabular medial wall defect after loosening of the acetabular component. The mass formation was caused simultaneously by changes secondary to polyethylene wear, a tiny delamination of the porous titanium mesh coating and a broken antirotational tab on the acetabular cup, all of which may have served as sources of metal particles. A careful evaluation of the patient′s history, symptoms, X-ray findings and computed tomography scans should always be performed to ensure accurate diagnosis.
Taketomi, Shuji; Yamagami, Ryota; Tahara, Keitaro; Tanaka, Sakae
Snapping pes syndrome is defined as a snapping sensation in the medial knee caused by pes anserinus and rarely occurs. Snapping pes syndrome after unicompartmental knee arthroplasty (UKA) has not been reported yet. We experienced two cases with this syndrome after UKA. Conservative treatment was effective in one case, while surgical excision of the gracilis tendon was necessary to relieve painful snapping in the other case. The main cause of the first case might be posteromedial overhang of the tibial tray that reached up to 5 mm. The probable cause of the second case was posteromedial overhang of the mobile bearing.
Emmanuel Gomes Ciolac
Full Text Available OBJECTIVES: To analyze muscle strength and exercise intensity adaptation to resistance training in older women with knee osteoarthritis and total knee arthroplasty. METHODS: Twenty-three community-dwelling women were divided into the following groups: older, with knee osteoarthritis and total knee arthroplasty in the contralateral limb (OKG; N= 7; older, without symptomatic osteoarthritis (OG; N= 8; and young and healthy (YG; N= 8. Muscle strength (1-repetition maximum strength test and exercise intensity progression (workload increases of 5%-10% were made whenever adaptation occurred were compared before and after 13 weeks of a twice-weekly progressive resistance-training program. RESULTS: At baseline, OKG subjects displayed lower muscle strength than those in both the OG and YG. Among OKG subjects, baseline muscle strength was lower in the osteoarthritic leg than in the total arthroplasty leg. Muscle strength improved significantly during follow-up in all groups; however, greater increases were observed in the osteoarthritic leg than in the total knee arthroplasty leg in OKG subjects. Greater increases were also seen in the osteoarthritic leg of OKG than in OG and YG. The greater muscle strength increase in the osteoarthritic leg reduced the interleg difference in muscle strength in OKG subjects, and resulted in similar posttraining muscle strength between OKG and OG in two of the three exercises analyzed. Greater exercise intensity progression was also observed in OKG subjects than in both OG and YG subjects. CONCLUSIONS: OKG subjects displayed greater relative muscle strength increases (osteoarthritic leg than subjects in the YG, and greater relative exercise intensity progression than subjects in both OG and YG. These results suggest that resistance training is an effective method to counteract the lower-extremity strength deficits reported in older women with knee osteoarthritis and total knee arthroplasty.
Purpose: To obtain, in a survey-based study, detailed information on the faculty currently responsible for teaching radiation biology courses to radiation oncology residents in the United States and Canada. Methods and Materials: In March-December 2007 a survey questionnaire was sent to faculty having primary responsibility for teaching radiation biology to residents in 93 radiation oncology residency programs in the United States and Canada. Results: The responses to this survey document the aging of the faculty who have primary responsibility for teaching radiation biology to radiation oncology residents. The survey found a dramatic decline with time in the percentage of educators whose graduate training was in radiation biology. A significant number of the educators responsible for teaching radiation biology were not fully acquainted with the radiation sciences, either through training or practical application. In addition, many were unfamiliar with some of the organizations setting policies and requirements for resident education. Freely available tools, such as the American Society for Radiation Oncology (ASTRO) Radiation and Cancer Biology Practice Examination and Study Guides, were widely used by residents and educators. Consolidation of resident courses or use of a national radiation biology review course was viewed as unlikely by most programs. Conclusions: A high priority should be given to the development of comprehensive teaching tools to assist those individuals who have responsibility for teaching radiation biology courses but who do not have an extensive background in critical areas of radiobiology related to radiation oncology. These findings also suggest a need for new graduate programs in radiobiology.
US Fish and Wildlife Service, Department of the Interior — The mandate of the CNVC is to comprehensively classify and describe natural and semi-natural Canadian vegetation in an ecologically meaningful manner. The...
Full Text Available ... brought to you by Zimmer. During the program, it’s easy for you to learn more about the ... The knee is a little -- I would grade it a one plus lax knee but it’s basically ...
The story of the Allied invasion of France in June 1944 has been told in countless military-history books. Previous publications on the Allied invasion and the subsequent Normandy campaign have, however, tended to concentrate on the British and American role in the fighting, while the Canadian contribution has received scant attention. This in itself is surprising, as the Canadians played a far from peripheral role in the invasion and the campaign which followed in the hinterland of Normandy....
Programmable thermostats can be used to optimize the operation of heating and cooling systems by reducing system usage when occupants are asleep or when dwellings are unoccupied. This paper used the results of a 2006 households and the environment survey to examine how programmable thermostats are currently being used in Canadian households. The demographic factors associated with thermostat use were discussed, as well as how their usage varied in different areas of Canada. The study showed that most Canadian households set their temperature at between 20 to 22 degrees C during times when they are home and awake. Home temperatures were reduced to between 16 and 18 degrees C when household members were away or asleep. Only 4 out of 10 households used programmable thermostats. Of those who used programmable thermostats, only 7 in 10 programmed the thermostat to lower the temperature when occupants were asleep. Senior citizens and people with lower levels of education were less likely to use programmable thermostats. It was concluded that incentive programs and the distribution of free programmable thermostats will increase their use in households. Assistance in programming during the installation process should also be provided. Factor analyses must also be conducted to examine the influence of age, education, and income and the decisions made by households in relation to temperature regulation. 7 tabs
Programmable thermostats can be used to optimize the operation of heating and cooling systems by reducing system usage when occupants are asleep or when dwellings are unoccupied. This paper used the results of a 2006 households and the environment survey to examine how programmable thermostats are currently being used in Canadian households. The demographic factors associated with thermostat use were discussed, as well as how their usage varied in different areas of Canada. The study showed that most Canadian households set their temperature at between 20 to 22 degrees C during times when they are home and awake. Home temperatures were reduced to between 16 and 18 degrees C when household members were away or asleep. Only 4 out of 10 households used programmable thermostats. Of those who used programmable thermostats, only 7 in 10 programmed the thermostat to lower the temperature when occupants were asleep. Senior citizens and people with lower levels of education were less likely to use programmable thermostats. It was concluded that incentive programs and the distribution of free programmable thermostats will increase their use in households. Assistance in programming during the installation process should also be provided. Factor analyses must also be conducted to examine the influence of age, education, and income and the decisions made by households in relation to temperature regulation. 7 tabs.
This volume contains the proceedings of the technical sessions from the 31. Annual Conference of the Canadian Nuclear Association. Topics of discussion include: the role of nuclear energy in the global energy future, public participation in energy policy making, CANDU 3 in Saskatchewan, new technologies, perspectives on global warming, components of successful nuclear programs, and Canada's nuclear challenges
Webber, Charles F.; Scott, Shelleyann
This article reports the entrepreneurial activities of two university faculties, one Canadian and the other Australian, that were designed to meet the educational needs of students and to garner the resources necessary for program delivery. A conceptual framework for educational entrepreneurship, containing six dimensions, is proposed. The…
This study examines racial and ethnic diversity among Canadian academic librarians and discusses the findings of a nationwide survey. The survey posed questions related to equity plans and programs as well as recruitment practices for academic librarians from equity-seeking groups with a focus on Aboriginal and visible/racial minority librarians.…
Sacher, Martin; Sacher, Mavis; Vaughan, Norman
The purpose of this research study was to investigate if and how a blended approach to Canadian First Nations education could be used to foster student engagement and success. The study examined the SCcyber E-Learning Community program (2012) through the lens of the "Seven Principles of Effective Teaching" (Chickering & Gamson,…
This dissertation provides a history of Canadian ideas about nuclear weapons from the late 1950s until the end of the Trudeau era in 1984. Throughout this period, Canadians reacted to the insecurity they felt in the world around them by expressing many conflicting, often irreconcilable views about a range of nuclear weapon issues, including Canada's acquisition of nuclear warheads in 1963, the U.S. ABM program in the 1960s and early 1970s, the role of Canadian nuclear technology in the development of India's first nuclear explosion, and the Trudeau government's decision to allow the U.S. military to test cruise missiles in northern Canada The dissertation concludes with an examination of the emergence of a broadly-based, increasingly mainstream and influential anti-nuclear movement in the early 1980s, the clearest manifestation of the insecurity Canadians experienced at the time. .The nuclear debates examined in this dissertation reveal that Canadians were divided over nuclear weapons, nuclear strategy, the arms race, proliferation, and arms control and disarmament. In particular, they came to fundamentally different conclusions about how Canada's nuclear weapon policies, and its support for the nuclear policies of its alliances, would contribute to international stability and order. Some believed that their security rested on the maintenance of a strong Western nuclear deterrent and supported Canada contributing to its credibility; others believed that the constant modernisation of nuclear arsenals fuelled by the superpower arms race posed a serious threat to their security. This conceptual dilemma-the security through nuclear strength argument versus the fear that the quest for security through quantitative and qualitative improvements of nuclear stockpiles increased the likelihood of nuclear war-left Canadians divided over the value and utility of nuclear weapons and the strategies developed around them. At the same time, Canadians' ideas about nuclear weapons
Forty-eight total hip arthroplasties for which revision surgery was performed were reviewed to determine the accuracy of laboratory tests, plain radiographs, hip aspiration, and technetium-99m MDP and gallium-67 scans in demonstrating the presence or absence of infection of the prosthesis. Six of the 48 hips were diagnosed as having an infection at the revision surgery. The erythrocyte sedimentation rate and the C-reactive protein levels were significantly higher in the patients with infected prostheses. The difference in the white blood cell count was not significant. There was no significant relationship between the presence of infection and the severity of loosening and instability of the implants diagnosed by plain radiographs. The accuracy of hip aspiration in diagnosing the infection was 83%, with a sensitivity of 40% and a specificity of 92%. The accuracy of technetium-99m MDP bone scan was 79%, with a sensitivity of 83%, and a specificity of 79%. Gallium-67 scan had an accuracy of 96%, a sensitivity of 67%, and a specificity of 100%. The findings in the present study indicated that diagnostic tests consisting of laboratory tests and plain radiography, followed by hip aspiration and sequential use of technetium-99m MDP and gallium-67 scintigraphies, are suitable for differentiation between mechanical loosening and infection of total hip arthroplasty. (author)
Tanzer, Michael; Makhdom, Asim M
Preoperative planning is of paramount importance in primary total knee arthroplasty. A thorough preoperative analysis helps the surgeon envision the operation, anticipate any potential issues, and minimize the risk of premature implant failure. Obtaining a thorough history is critical for appropriate patient selection. The physical examination should evaluate the integrity of the soft tissues, the neurovascular status, range of motion, limb deformity, and the status of the collateral ligaments to help determine the soft-tissue balancing and constraint strategy required. Standard radiographs, with a known magnification, should be obtained for preoperative total knee arthroplasty templating. Routine standing AP, lateral, and skyline radiographs of the knee can help the surgeon plan the bone cuts and tibial slope as well as the implant size and position at the time of surgery. In certain circumstances, such as severe coronal deformities, bone deficiencies, and/or extra-articular deformities, additional measures are frequently necessary to successfully reconstruct the knee. Constrained implants, metal augments, and bone graft must be part of the surgeon's armamentarium. PMID:26990712
Banerjee, Samik; Cherian, Jeffery J; Elmallah, Randa K; Pierce, Todd P; Jauregui, Julio J; Mont, Michael A
Precise and accurate biomechanical reconstruction during total hip arthroplasty (THA) is essential for durable long-term survivorship. Accurate fit of cementless hip implants is also crucial to reduce micromotion between the bone-implant interfaces to allow for stable osseointegration. Robotic technology aims to minimize potential human errors and improve implant alignment and fit, and address persisting concerns with modern-day cementless THA. Although robotic THA dates back to the early 1990s, concerns with increased operating times, costs, and complications led to its withdrawal. However, semi-active systems have renewed interest in robot-assisted joint arthroplasty. We reviewed the current technology, its potential benefits, and the reported clinical and radiographic outcomes. Early evidence suggests that robotic use may lead to more accurate reconstruction of radiographic parameters, such as implant positioning, fit, center-of-rotation, and leg-length discrepancy. Further research is needed to determine if these will translate into better outcomes and improved implant longevity to justify increased costs. PMID:26592900
Objective: To evaluate the results of 36unconstrained shoulder arthroplasties. Methods: In the series, 24 total and 12 hemiarthroplasties of the shoulders were performed with unconstrained shoulder prostheses in 29 patients who suffered from glenohumeral degenerative arthritis, rheumatoid arthritis, avascular necrosis and proximal fracture of humerus, respectively. Follow-up averaged 6.2years. All patients were evaluated pre- and post-operatively using the rating system of the Society of American Shoulder and Elbow Surgeons which assesses the severity of pain,strength of muscles around shoulder, stability, range of motion and functional activities of daily living. Radiolucent line and migration of prostheses were observed postoperatively on X-rays. Results: Postoperatively, the rate of pain relief was 91.3%, and active range of motion increased by 47° inforward flexion, 43° in abduction , 30° in external rotation,and 4 segments in internal rotation. Preoperatively the average points of 6 functional activities patients could perform was 0.8, and postoperatively 3.1. On postoperative X-ray, proximal migration of the humerus was seen in 8 shoulders, 6 of which had either a torn or absent rotator cuff. Radiolucent lines were seen around 1humeral component and 9 glenoid components. Onehumeral and 2 glenoid components loosened. Conclusions: These results suggest that unconstrained shoulder arthroplasty is a satisfactory and safe technique.
Pearle, Andrew D; O'Loughlin, Padhraig F; Kendoff, Daniel O
The outcomes of unicompartmental knee arthroplasties (UKAs) have demonstrated inconsistent long-term survival. We report the first clinical series of UKA using a semiactive robotic system for the implantation of an inlay unicondylar knee arthroplasty. Ten patients were selected for this study. Preoperative mechanical leg alignment values ranged from 0.3 degrees varus to 9.8 degrees varus. A haptic guidance system was used; a detailed description is given in the manuscript. The setup time for the robot was 41 minutes; intraoperative registration process, 7.5 minutes (6-13 minutes); skin incision, 8 cm; robot-assisted burring, 34.8 minutes (18-50 minutes); mean tourniquet time, 87.4 minutes (68-113 minutes); and overall operation time, 132 minutes (118-152 minutes). The planned and intraoperative tibiofemoral angle was within 1 degrees. The postoperative long leg axis radiographs were within 1.6 degrees. Haptic guidance in combination with a navigation module allows for precise planning and execution of both inlay components in UKA. PMID:19056227
Parcells, Bertrand W; Tria, Alfred J
The early knee replacements were hinge designs that ignored the ligaments of the knee and resurfaced the joint, allowing freedom of motion in a single plane. Advances in implant fixation paved the way for modern designs, including the posterior-stabilized (PS) total knee arthroplasty (TKA) that sacrifices both cruciate ligaments while substituting for the posterior cruciate ligament (PCL), and the cruciate-retaining (CR) TKA designs that sacrifice the anterior cruciate ligament but retain the PCL. The early bicruciate retaining (BCR) TKA designs suffered from loosening and early failures. Townley and Cartier designed BCR knees that had better clinical results but the surgical techniques were challenging.Kinematic studies suggest that normal motion relies on preservation of both cruciate ligaments. Unicompartmental knee arthroplasty retains all knee ligaments and closely matches normal motion, while PS and CR TKA deviate further from normal. The 15% to 20% dissatisfaction rate with current TKA has renewed interest in the BCR design. Replication of normal knee kinematics and proprioception may address some of the dissatisfaction. PMID:27327919
This publication by the National Energy Board is part of a continuing program of assessing applications for long-term natural gas export licences. The market-based procedure used by the Board is based on the premise that the marketplace will generally operate in a way that will ensure that Canadian requirements for natural gas will be met at fair market prices. The market--based procedure consists of a public hearing and a monitoring component. The monitoring component involves the on-going assessment of Canadian energy markets to provide analyses of major energy commodities on either an individual or integrated commodity basis. This report is the result of the most recent assessment . It identifies factors that affect natural gas prices and describes the functioning of regional markets in Canada. It provides an overview of the energy demand, including recent trends, reviews the North American gas supply and markets, the natural gas pricing dynamics in Canada, and a regional analysis of markets, prices and dynamics in British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec and the Atlantic provinces. In general, demand growth outstripped growth in supply, but natural gas producers throughout North America have been responding to the current high price environment with aggressive drilling programs. The Board anticipates that in time, there will be a supply and demand response and accompanying relief in natural gas prices. A review of the annual weighted average border price paid for Alberta gas indicates that domestic gas users paid less than export customers until 1998, at which point the two prices converged, suggesting that Canadians have had access to natural gas at prices no less favourable than export customers. The influence of electronic trading systems such as NYMEX and AECO-C/NIT have had significant impact on the pricing of natural gas. These systems, by providing timely information to market participants. enables them to manage price
The Canadian Space Agency, Space Station, Strategic Technologies for Automation and Robotics Program technology development activity in protection of materials from the low Earth orbit space environment
Francoeur, J. R.
The Strategic Technologies in Automation and Robotics (STEAR) program is managing a number of development contracts to improve the protection of spacecraft materials from the Low Earth Orbit (LEO) space environment. The project is structured in two phases over a 3 to 4 year period with a budget of 3 to 4 million dollars. Phase 1 is designed to demonstrate the technical feasibility and commercial potential of a coating/substrate system and its associated application process. The objective is to demonstrate a prototype fabrication capability using a full scale component of a commercially viable process for the protection of materials and surface finishes from the LEO space environment, and to demonstrate compliance with a set of performance requirements. Only phase 1 will be discussed in this paper.
Voorde, Pia C Ten; Rasmussen, Jeppe V; Olsen, Bo S; Brorson, Stig
outcome was obtained 1-year postoperatively using the Western Ontario Osteoarthritis of the Shoulder index (WOOS), and rates of revision were calculated by checking revisions reported until December 2011. The patient-reported outcome of RHA was compared to that of SHA using regression analysis with......BACKGROUND AND PURPOSE: There is no consensus on which type of shoulder prosthesis should be used in patients with rheumatoid arthritis (RA). We describe patients with RA who were treated with shoulder replacement, regarding patient-reported outcome, prosthesis survival, and causes of revision, and...... we compare outcome after resurfacing hemi-arthroplasty (RHA) and stemmed hemi-arthroplasty (SHA). PATIENTS AND METHODS: We used data from the national Danish Shoulder Arthroplasty Registry and included patients with RA who underwent shoulder arthroplasty in Denmark between 2006 and 2010. Patient-reported...
Conclusion: After knee arthroplasty, the preoperative and postoperative use of cryotherapy is effective in terms of the pain control and functional knee scores without a significant change in surgical blood loss.
Szerlip, Benjamin W; Morris, Brent J; Edwards, T Bradley
Reverse shoulder arthroplasty has become increasingly popular for the treatment of complex shoulder injuries, including proximal humerus fractures and fixed glenohumeral dislocation, in the elderly population. The early to midterm results of reverse shoulder arthroplasty for the treatment of proximal humerus fractures are promising compared with the results of unconstrained humeral head replacement, and patients may have more predictable improvement with less dependence on bone healing and rehabilitation. However, long-term follow-up is needed, and surgeons must be familiar with various complications that are specific to reverse shoulder arthroplasty. To achieve optimal patient outcomes for the management of traumatic shoulder injuries, surgeons must have a comprehensive understanding of the current implant options, indications, and surgical techniques for reverse shoulder arthroplasty. PMID:27049189
Maslow, Jed; Zuckerman, Joseph D; Immerman, Igor
Post-patellectomy patients represent a specific subgroup of patients that may develop arthritis and persistent knee pain and potentially require treatment with total knee arthroplasty. This article reviews the treatment and functional outcomes following total knee arthroplasty in patients with prior patellectomy. A case report is presented as an example of the clinical management of a post-patellectomy patient with significant knee pain and disability treated with total knee arthroplasty. Emphasis will be placed in decision- making, specifically with the use of a posterior stabilized implant. In addition, postoperative strengthening of the quadriceps is essential to compensate for the lack of the patella and increase the success of total knee arthroplasty in this subgroup of patients. PMID:24151951
Full Text Available As mães pobres e suas famílias constituem um dilema central a um sistema de bem-estar social que visa principalmente encorajar e manter os trabalhadores na força de trabalho. As transferências de renda pelo poder público para este e outros grupos marginalizados podem ser vistas como um desestímulo ao trabalho assalariado e têm sido, desde o início do século XX no Canadá, marcadas por enormes mesquinhez e contradições. Esse artigo discute transformações recentes nesses programas e seus efeitos nas famílias e indivíduos, enfocando o caso específico das mulheres pobres mantendo suas famílias sozinhas. Ele argumenta que o corte e re-definição gradual dos programas mudaram a natureza do estado de bem-estar social no Canadá e reduzem os caminhos para sair da pobreza disponíveis a grupos marginalizados.Poor mothers and their families constitute a core dilemma for a social welfare system that aims primarily to encourage and keep workers in the labor force. Public income transfers to these and other marginalized groups may be viewed as disincentives to seek paid work and have been characterized in Canada by stinginess and contradictions since the beginning of the XX century. This paper discusses recent transformations in these programs and their effects on families and individuals. Focusing specifically on poor mothers raising children alone, it argues that many gradual cuts and reshaping these programs have changed the character of the social welfare state in Canada, blocking escape routes from poverty for marginalized groups.
Canada's energy is complex and an important resource as it fuels and funds the economy. The unique character of Canada's energy production and consumption provides strength to the country. The purpose of this booklet was to highlight Canada's energy production and consumption and to demonstrate Canada's rank globally with other major global energy players. The document also presented information on the value of Canada's energy exports, Canada's relationship with the United States, and Canada's energy-related carbon dioxide emissions. Specifically, the document discussed Canada's energy in a global context; the value of Canada's energy exports; domestic value of energy; Canada's unique energy mix; Canada's electricity mix; Canada's carbon dioxide emissions; energy strategies; and the importance of energy to Canadians. It was concluded that there are 14 federal, provincial and territorial jurisdictions managing their respective energy resources. All of these regions, with the exception of Saskatchewan have produced an energy strategy document or a climate change action plan focusing on 8 areas of action, notably awareness; benefit; efficiency; development; diversification; electricity; and emissions. refs., tabs., figs.
Carlos Roberto Schwartsmann; Felipe Loss; Leandro de Freitas Spinelli; Roque Furian; Marcelo Faria Silva; Júlia Mazzuchello Zanatta; Leonardo Carbonera Boschin; Ramiro Zilles Gonçalves; Anthony Kerbes Yépez
OBJECTIVE: this was an epidemiological study on trochanteric bursitis at the time of performing total hip arthroplasty.METHODS: sixty-two sequential patients who underwent total hip arthroplasty due to osteoarthrosis, without any previous history of trochanteric bursitis, were evaluated. The bursas were collected and evaluated histologically.RESULTS: there were 35 female patients (56.5%) and 27 male patients (43.5%), with a mean age of 65 years (±11). Trochanteric bursitis was conformed histo...
Cakmak, Mehmet; Karamehmetoglu, Mahmut; Taser, Omer; Alturfan, Aziz
7 cases have been treated with trochanteric arthroplasty, in which femoral neads and necks were lost due to the septic arthritic sequela of the hip. These seven cases have been followed for 2,7 years with 1,5 being the youngest 4 the oldest made on the fact that in those cases in which heads and necks are lost in combination, the best solution can be obtained by trochanteric arthroplasty.
Jackson, Keith L.; Hire, Justin M; Jacobs, Jeremy M.; Key, Charles C.; DeVine, John G.
To date, no reports have presented radiculopathy secondary to heterotopic ossification following lumbar total disc arthroplasty. The authors present a previously unpublished complication of lumbar total disk arthroplasty (TDA) secondary to heterotopic ossification (HO) in the spinal canal, and they propose a modification to the McAfee classification of HO. The patient had undergone an L5/S1 lumbar TDA two years prior due to discogenic back pain. His preoperative back pain was significantly re...
Study Design Lumber disc arthroplasty is a technological advancement that has occurred in the last decade to treat lumbar degenerative disk diseases. Purpose The aim of this retrospective study was to establish the impact and outcomes of managing patients with lumbar degenerative disk disease who have been treated with lumbar total disc arthroplasty (TDA). Overview of Literature Several studies have shown promising results following this surgery. Methods We reviewed the files of 104 patients ...
Zhu, Yun; Yue, Chen; Huang, Zeyu; Pei, Fuxing
Candida glabrata infection following total hip arthroplasty is rare and, due to the insufficiency of standardized clinical and evidence-based guidelines, there is no appropriate therapeutic schedule. The present study reports the case of a 44-year-old patient with Candida glabrata infection following a total hip arthroplasty. The patient was successfully treated by administration of intravenous and oral voriconazole without removal of the prosthesis. This case illustrates the significance of ...
Reddy, Kankanala J; Shah, Jay D; Rohit V Kale; T Jayakrishna Reddy
Fungal prosthetic joint infection after total knee arthroplasty (TKA) is a rare complication. Lacunae exist in the management of this complication. 62 year old lady presented with pain and swelling in left knee and was diagnosed as Candida tropicalis fungal infection after TKA. She underwent debridement, resection arthroplasty and antifungal plus antibiotic loaded cement spacer insertion, antifungal therapy with fluconazole followed by delayed revision TKA and further fluconazole therapy. Tot...
Kort, Nanne Pieter; Van Raay, Jos J. J. A. M.; van Horn, Jim R.
Popliteal vascular injury and the compartment syndrome of the leg are rare but important complications of knee arthroplasties. Early diagnosis and treatment are of paramount importance in preventing the devastating complications of these conditions. To our knowledge, these complications have not been reported previously after unicompartmental knee arthroplasty in the literature. Low level of suspicion may delay the diagnosis, as popliteal vascular injury and compartment syndrome are not well ...
Shin, Young-Soo; Hwang, Yeok-Gu; Savale, Abhijit Prakash; Han, Seung-Beom
An early diagnosis of popliteal artery pseudoaneurysm-a sequela of popliteal artery trauma-is difficult owing to its late presentation following total knee arthroplasty. The incidence of a popliteal artery pseudoaneurysm with a hematoma presenting only a peripheral nerve injury after total knee arthroplasty is also uncommon in the absence of common diagnostic features such as a pulsatile swelling with an audible bruit on auscultation. In the present report, we describe popliteal artery pseudo...
Thyssen, Jacob Pontoppidan; Jakobsen, Stig Storgaard; Engkilde, Kåre; Johansen, Jeanne Duus; Søballe, Kjeld; Menné, Torkil
Background and purpose It has been speculated that the prevalence of metal allergy may be higher in patients with implant failure. We compared the prevalence and cause of revisions following total hip arthroplasty (THA) in dermatitis patients suspected to have contact allergy and in patients in general with THA. Furthermore, we compared the prevalence of metal allergy in dermatitis patients with and without THA. Materials and methods The Danish Hip Arthroplasty Registry (DHAR) contained detai...
Li, Shuzhen; Chen, Yueping; Su, Wei; Zhao, Jinmin; He, Shunqing; Luo, Xiangping
Controversies existing over resurfacing the patella in total knee arthroplasty remain in the literature. The purpose of this review was to evaluate the effectiveness of resurfacing versus nonresurfacing the patella in total knee arthroplasty. We searched the Cochrane Library, MEDLINE and EMBASE for published randomised clinical trials relevant to patellar resurfacing. The relative risk of reoperation was significantly lower for the patellar resurfacing group than for the nonresurfacing group ...
de Araújo Barros Cobra, Hugo Alexandre; da Palma, Idemar Monteiro
Debris of polyethylene tibial bearings have been recognized as a major cause for the onset of the cascade of biological events leading to osteolysis and loosening of prosthetic components after total knee arthroplasty. Since then, research has been focused on alternative bearing surfaces in order to minimize the amount and rate of polyethylene wear off and, in doing so, increasing the survivorship rate for knee arthroplasties. One such option is to have a mobile tibial bearing allowing more c...
M. Ramezanian T. Yavary
Temporomandibular joint ankylosis causes limitation in mouth opening and establishes severe deformity and asymmetry in patient’s face, especially in children. Surgery is the only treatment. This study was conducted to compare the effect of two surgical approaches, gap arthropasty and interpositional gap arthroplasty, on rate of maximum interincisal opening in temporomandibular joint ankylosis. We also evaluated the relapse rate of these two surgical approaches. A total of 48 patients were enr...
A report called Global Change and Canadians has been produced by the Royal Society of Canada to answer basic questions being asked about global change issues. A teacher's guide is presented to help teachers make effective use of the report in developing programs with students concerning global change. A basic set of teaching and learning activities related to the major topics in the report is provided, curricular connections between global change topics and school programs are suggested, and some additional resources on global change are listed. The guide is divided into six chapters, each corresponding to the chapters of the global change report. Each chapter contains a summary of the major concepts from the report, some of the learning outcomes that occur when those concepts are addressed, a series of suggested activities or ideas, and a guide for assessing students' abilities relative to the concepts of the chapter. The topics of the chapters cover the nature of global change, the importance of global change to Canada, the causes of global change, the consequences of global change (including climate change and the greenhouse effect), the effects of global change on society, and Canadian responses to global change. 64 refs., 3 figs
Artime, V.; Ramos, J. C.; Fernandez-Medina, J. M.; de Luis, M. C.; Aguilera, L.
Fracture of components of a total hip arthroplasty occur is a recognised complication. We report an unusual case in which the fracture occurred through the neck of a femoral component on a Lord type of total hip arthroplasty.
The Thai-Canadian Nuclear Human Resources Development Linkage Project (the Project) was initiated in 1994 in order to develop the engineering and scientific expertise needed for Thailand to decide whether and how the country can best benefit from the establishment of a nuclear power program. The Project was designed to upgrade current academics and people in industry, and to develop an adequate supply of new technical personnel for academic, industry, utility, regulatory and other government institutions. The key Project objectives included the establishment of a Chair in Nuclear Engineering at Chulalongkorn University, the upgrading of the current Masters level curriculum, the establishment of undergraduate and doctorate level curricula, development and delivery of an industrial training program for people in industry and government, exchanges of Thai and Canadian academics and industry experts to establish common research programs and teaching interests, and a public education program that was to test in Thailand some of the techniques that have been successfully used in Canada. (author)
The Canadian Nuclear Safety Commission's mission is to regulate the use of nuclear energy and materials to protect the health, safety, and security of Canadians and the environment, as well as to respect Canada's international commitments on the peaceful use of nuclear energy. In 2001, the CNSC established a vision to be one of the best nuclear regulators in the world and established four strategic priorities of effectiveness, transparency, excellence in staff, and efficiency. While fulfilling a very comprehensive mandate, the CNSC operates with a. very clear vision of its clientele - the Canadian people. That commitment guides every employee and every action of the CNSC and ensures a firm commitment to transparency. The presentation will begin with a brief overview of the worldwide context of transparency and transparency measurement, with a look at what lessons can be learned from other organizations and initiatives. It will look broadly at the Canadian context and the government framework that establishes transparency, including the keystone legislation of the Access to Information Act. The presentation will then focus on the Canadian Nuclear Safety Commission. The CNSC is firmly committed to putting additional measures in place to ensure transparency, which is being done concurrently with an overall organisational performance measurement system. It is within this framework that the presentation will address the transparency efforts at the CNSC as well transparency measurement activities. And, finally, the presentation will look at future directions for transparency and its measurement at the CNSC. (author)
Atomic Energy of Canada Limited (AECL) began work on the irradiation of potatoes in 1956, using spent fuel rods as the radiation source. In 1958 the first Gammacell 220, a self-contained irradiator, was designed and manufactured by AECL, and cobalt-60 was then used exclusively in the food irradiation programme. In 1960 the first food and drug clearance was obtained for potatoes. The next stage was to demonstrate to the potato industry that cobalt-60 was a safe, simple and reliable tool, and that irradiation would inhibit sprouting under field conditions. A mobile irradiator was designed and produced by AECL in 1961 to carry out this pilot-plant programme. The irradiator was mounted on a fully-equipped road trailer and spent the 1961/1962 season irradiating one million pounds of potatoes at various points in Eastern Canada. In 1965 the first commercial food irradiator was designed and built by AECL for Newfield Products, Ltd. Whilst the potato programme was under way, AECL initiated co-operative programmes with Canadian food research laboratories, using additional Gammacells. In 1960, AECL constructed an irradiation facility in a shielded room at its own plant in Ottawa for the irradiation of larger objects, such as sides of pork and stems of bananas. During 1963 the mobile irradiator, already a most useful tool, was made more versatile when its source strength was increased and it was equipped with a product cooling system and van air conditioning. Following these modifications, the unit was employed in California for the irradiation of a wide spectrum of fruits at the United States Department of Agriculture Station in Fresno. The Gammacell, mobile irradiator, shielded-room facility, the commercial food irradiator and some of the main food programmes are described in detail. There is an increasing amount of interest in irradiation by the food industry, and prospects are encouraging for future installations. (author)
Primadi, Andri; Xu, He-Xing; Yoon, Taek-Rim; Ryu, Je-Hwang; Lee, Keun-Bae
Background Neurologic injuries are complications that can arise after total joint arthroplasty. However, no comprehensive study has been conducted on peripheral nerve injuries after total ankle arthroplasty. The purpose of the present study was to identify the prevalence of neurologic injury following primary total ankle arthroplasty, the predisposing factors, and evaluate the effect on clinical outcomes. Methods We retrospectively analyzed 150 consecutive primary total ankle arthroplasty usi...
Dale, Leila Pfaeffli; LeBlanc, Allana G; Orr, Krystn; Berry, Tanya; Deshpande, Sameer; Latimer-Cheung, Amy E; O'Reilly, Norm; Rhodes, Ryan E; Tremblay, Mark S; Faulkner, Guy
The present study evaluated awareness of the Canadian Society for Exercise Physiology's 2011 Canadian Physical Activity Guidelines for Adults and assessed correlates. Reported awareness of the physical activity (PA) guidelines was 12.9% (204/1586) of the total sample surveyed. More than half (55%) self-reported meeting PA guidelines of ≥ 150 min of moderate to vigorous PA per week. Awareness of PA guidelines was significantly related to participants' level of PA (χ(2) (1) = 30.63, p < 0.001, φ = -0.14), but not to any demographic variables. PMID:27560541
Card Sharon E
Full Text Available Abstract Background General Internal Medicine (GIM has recently been approved as a subspecialty by the Royal College of Physicians and Surgeons of Canada. As such, there is a need to define areas of knowledge that a General Internist must learn in those two years of training. There is limited literature as to what competencies are needed in a GIM practice. Draft competencies for GIM (4th and 5th year residents in internal medicine training were developed over eight years with input from many stakeholders. Practicing General Internists were surveyed and asked their perspective as to the level of importance of each of these competencies for GIM training. They were also asked if training gaps exist in current training programs. The survey was offered widely online in both English and French to gain perspectives from as many different contexts as possible. Results 157 General Internists, in practice on average for 15 years, responded from all of Canada's provinces and territories. Practice profiles were diverse (large urban centers to rural centers. The majority of the competencies surveyed were perceived as important to attain at least proficiency in. Perioperative care, risk reduction, and the management of common, emergent, and complex internal medicine problems were identified as key areas to focus training programs on, with respondents perceiving these should be mastered to an expert level. Training gaps were identified, most frequently in that of the manager role (example managing practice. Conclusions This is the first study we are aware of to attempt to isolate the opinions of practicing Canadian General Internists as to the major competencies that should be mastered as a General Internist. We suggest that "generalism" in the context of GIM, does not mean a bit of knowledge about everything but that defined objectives for training in this 'newest' of Royal College subspecialties can be identified. This includes mastery of core areas such as
Dibbon, David C.
Since its inception in 1996, the GrassRoots Program has been instrumental in facilitating the integration of information and communication technologies (ICT) into the classrooms of Canadian schools. By linking the GrassRoots Program to the school curriculum and providing incentives for teachers to engage students in the process of co-creating electronic curriculum resources for the Internet, it has been influential in transforming classrooms into authentic centres of learning. There is overwh...
Frankel, Grace; Louizos, Christopher; Austin, Zubin
Canadian faculties (schools) of pharmacy are actively engaged in the advancement and restructuring of their programs in response to the shift in pharmacy to pharmacists having/assuming an advanced practitioner role. Unfortunately, there is a paucity of evidence outlining optimal strategies for accomplishing this task. This review explores several educational changes proposed in the literature to aid in the advancement of pharmacy education such as program admission requirements, critical-thin...
In this report we present the design review done to date in Canada by AECL. From the Canadian point of view it covers: 1) relevant information on the Chernobyl design and the accident, both as presented by the Soviets at the Post-Accident Review Meeting (PARM) held in Vienna from August 25-29, 1986, and as deduced from publicly available Soviet documentation; and 2) details of AECL's technical review of the CANDU PHWR (Pressurized Heavy Water Reactor) against the background of the Chernobyl accident, and implications of the Chernobyl accident. Reviews of operational aspects are underway by the Canadian electrical utilities and a review by the Canadian regulatory agency (the Atomic Energy Control Board) is near completion
M. Reza Nakhaie
Full Text Available The social role of universities has been the subject of a lengthy debate as to whether those who teach in the academy are system-legitimizing conservatives or radicals helping to generate critical thinking that challenges the status quo. The aim of this paper is to evaluate political affiliations of Canadian university professors based on a national survey conducted in 2000. The study shows that Canadian professors’ political affiliation can be identified as either left or right depending on how the political orientation of political parties is conceptualized. University professors tend to vote more for the Liberal Party than other parties, and view it as centrist party. Moreover, the study highlights a complex and non-monolithic picture of the Canadian academy. University professors are not politically homogenous and party vote depends on the prestige of their university, their discipline, gender, ethnicity, marital status, generation, and agreement with liberalism.
The Canadian Association of Petroleum Producers (CAPP) represents oil and gas companies throughout Canada; its members produce over 90% of Canada's natural gas and crude oil output. The aim of the Association is to improve the economics of the Canadian upstream petroleum sector in an environmentally and socially responsible way. The aim of this Responsible Canadian Energy report is to present the performance data of CAPP's members for the year 2009. Data, trends, and performance analyses are provided throughout the document. This analysis makes it possible to determine where progress has been made and where performance improvement is necessary. It also presents success stories and best practices so that other companies can learn from them how to improve their own performance. This paper provides useful information on the performance of the upstream petroleum industry in Canada and highlights where the focus should be for further improvement in its performance.
Højer Karlsen, Anders Peder; Geisler, Anja; Petersen, Pernille Lykke;
Treatment of postoperative pain should rely on results from randomized controlled trials and meta-analyses of high scientific quality. The efficacy of a particular intervention may depend on the type of surgical procedure, which supports the reporting of "procedure-specific" interventions. The aim...... of this systematic review was to document the procedure-specific evidence for analgesic interventions after total hip arthroplasty (THA). This PRISMA-compliant and PROSPERO-registered review includes randomized placebo-controlled trials (RCTs) of medication-based analgesic interventions after THA...... reporting of adverse events, considerable differences in supplemental analgesic consumption, and basic analgesic regimens generally characterized trials. Meta-analyses of non-steroidal anti-inflammatory drugs, local infiltration analgesia, intrathecal opioids, and lumbar plexus block provided a 24-hour...
Compton, R; Bucknell, A
Five cases of comminuted olecranon fractures treated by resection of the proximal fragments are reviewed. The patients' average age was 56 years and all were radiographically osteopenic. The triceps was advanced and attached to the distal olecranon with the elbow flexed at 90 degrees. A standard postoperative regimen was used with immobilization for three weeks in plaster at 45 to 60 degrees of flexion followed by progression to cautious active range of motion exercises. Follow-up of from 18 to 54 months shows an average active range of motion of 10 degrees flexion to 120 degrees flexion. There were no complaints or clinical evidence of instability and minimal degenerative changes were seen on radiography. We conclude that resection arthroplasty of comminuted olecranon fractures yields excellent clinical and functional results in elderly patients. PMID:2927958
Ponzio, Danielle Y; Austin, Matthew S
The etiology of bone loss encountered during revision total knee arthroplasty (TKA) is often multifactorial and can include stress shielding, osteolysis, osteonecrosis, infection, mechanical loss due to a grossly loose implant, and iatrogenic loss at the time of implant resection. Selection of the reconstructive technique(s) to manage bone deficiency is determined by the location and magnitude of bone loss, ligament integrity, surgeon experience, and patient factors including the potential for additional revision, functional demand, and comorbidities. Smaller, contained defects are reliably managed with bone graft, cement augmented with screw fixation, or modular augments. Large metaphyseal defects require more extensive reconstruction such as impaction bone grafting with or without mesh augmentation, prosthetic augmentation, use of bulk structural allografts, or use of metaphyseal cones or sleeves. While each technique has advantages and disadvantages, the most optimal method for reconstruction of large metaphyseal bone defects during revision TKA is not clearly established. PMID:26362647
McDonald, Lisa T; Corbiere, Nicole C; DeLisle, Jay A; Clark, Alexander Martin; Kuxhaus, Laurel
Controlling pain after total joint arthroplasty (TJA) is critical to minimizing complications, decreasing costs, and expediting patients' return to function. We implemented a TJA multimodal pain management protocol at a Level III trauma center in a small, rural community in New York. We retrospectively reviewed 266 patient charts and collected patient demographics, pain management information, and discharge data. Our primary goals were to quantify the total number of narcotic medication doses used and length of hospital stay. The multimodal pain management protocol significantly reduced the number of narcotic doses used (P pain management after TJA can reduce narcotic use and hospital length of stay, thereby also reducing the incidence of side effects from narcotics. PMID:27234795
Halawi, Mohamad J
Fracture blisters are tense vesicles that arise on markedly swollen skin overlying traumatized soft tissue. While this relatively uncommon complication has been well described in the trauma literature, this article reports for the first time a case of fracture blisters after primary total knee arthroplasty. The fracture blisters developed within 36 hours of surgery and were associated with profound swelling and erythema. There was no evidence of vascular injury, compartment syndrome, iatrogenic fracture, or deep venous thrombosis. The patient was treated with leg elevation, loosely applied nonadhesive dressings, and a short course of oral antibiotics after skin desquamation. Blood-filled blisters required longer time to reepithelialization than fluid-filled blisters. Knee stiffness developed because of pain and fear of participation with physical therapy, but the patient was able to resume intensive rehabilitation after resolution of the blisters. Patient factors, surgical factors, and review of the literature are discussed. PMID:26251947
Plaschke, Hans Christian; Thillemann, Theis M; Brorson, Stig;
BACKGROUND: Total elbow arthroplasty (TEA) is an established treatment for late-stage arthritis of the elbow. Indications have expanded to osteoarthritis and nonunion in distal humeral fractures. Information on implant survival and risk factors for revision is still sparse. The aim of this study...... was to evaluate implant survival and risk factors for revision of TEAs inserted in patients in the eastern part of Denmark in the period from 1980 until 2008. MATERIAL AND METHODS: The Danish National Patient Register provided personal identification numbers for patients who underwent TEA procedures...... from 1980 until 2008. On the basis of a review of medical reports and linkage to the National Patient Register, we calculated revision rates and evaluated potential risk factors for revision, including, age, sex, period, indication for TEA, and implant design. RESULTS: We evaluated 324 primary TEA...
Oka, Y; Ohta, K; Saitoh, I
For treatment of osteoarthritis of the elbow, the authors use debridement arthroplasty with a medial or lateral approach. Thirty-eight elbows in 36 patients treated with this procedure were examined. The age of the patients ranged from 20 to 71 years, with a mean age of 41.7 years. Cubital tunnel syndrome was present in 16 of the 38 (42%) elbows. The operations were performed through a lateral approach in four elbows, a lateral approach with medial skin incision for ulnar nerve neurolysis in 16 elbows, a medial approach in 10 elbows, and a medial plus a lateral approach in eight elbows. The followup ranged from 2 years to 12.1 years, with an average of 5.9 years. Complete pain relief or minimal elbow pain was reported in 95% of patients who had surgical treatment. The average gain in motion was 6 degrees extension and 18 degrees flexion. Results for the various surgical approaches did not show a statistically significant difference. Recurrence of bony spurs and ridges was analyzed additionally in 18 selected patients who could be observed more than 5 years after surgery (range, 5-12 years). Redevelopment of bony spurs on the coronoid process and olecranon tip occurred in all 18 patients, but those changes were graded as mild in 13 (74%) patients and moderate in five (16%) patients and were accompanied by no pain or slight pain. Elbow arthroplasty as used by the authors produces stable and reliable results for relief of pain, gains in range of motion, and the absence of recurrence of significant osteoarthritis. PMID:9646755
Ikävalko, Mikko; Belt, Eero A; Kautiainen, Hannu; Lehto, Matti U K
One hundred fifty-eight primary Souter elbow arthroplasties were done on 134 patients (121 women) with severe joint destruction (Larsen Grade 5) or large bone defects or both. Joint replacement operations were done at our institution from 1985-1997. The study group comprised 156 joints in 132 patients with rheumatoid arthritis or other variants of chronic inflammatory joint disease, one in a patient with osteoarthritis, and one patient with posttraumatic arthrosis. The mean age of the patients at the time of surgery was 57 years (range, 26-81 years) and the mean disease duration was 27 years (tinge, 2-70 years). Radiographically, severe bone defects were detected in 100 humeri and 134 ulnas. Retentive (snap-fit) ulnar components were implanted in 110 joints, and bone grafts were used on 26 humeri and 14 ulnas. Major complications led to five early and 16 late reoperations in 19 patients. Four reoperations were done because of dislocation and eight because of aseptic loosening. One reoperation was done because of early infection and five were done because of late infection. One patient had reoperation because of superficial infection in the bursa olecrani and one triceps tendon rupture also was repaired. One patient had wound repair because of marginal necrosis. In the survival analysis, the cumulative success rate without revision for aseptic loosening at 5 years followup was 97%. Despite the demanding nature of these arthroplasties, the primary results are encouraging. Technically, it is possible to do elbow replacement, even on elbows where the humeral condyles or olecranon or both are missing, if there is sufficient bone left on the diaphyseal areas for primary stem fixation. However, in these extreme cases, the poor general condition of the patient or the difficult soft tissue problems in the elbow region may prove to be a contraindication for joint replacement. PMID:15123937
Lindberg-Larsen, Martin; Jørgensen, Christoffer C; Bagger, Jens; Schrøder, Henrik M; Kehlet, Henrik
Background and purpose - The surgical treatment of periprosthetic knee infection is generally either a partial revision procedure (open debridement and exchange of the tibial insert) or a 2-stage exchange arthroplasty procedure. We describe the failure rates of these procedures on a nationwide basis. Patients and methods - 105 partial revisions (100 patients) and 215 potential 2-stage revision procedures (205 patients) performed due to infection from July 1, 2011 to June 30, 2013 were identified from the Danish Knee Arthroplasty Register (DKR). Failure was defined as surgically related death ≤ 90 days postoperatively, re-revision due to infection, or not reaching the second stage for a planned 2-stage procedure within a median follow-up period of 3.2 (2.2-4.2) years. Results - The failure rate of the partial revisions was 43%. 71 of the partial revisions (67%) were revisions of a primary prosthesis with a re-revision rate due to infection of 34%, as compared to 55% in revisions of a revision prosthesis (p = 0.05). The failure rate of the 2-stage revisions was 30%. Median time interval between stages was 84 (9-597) days. 117 (54%) of the 2-stage revisions were revisions of a primary prosthesis with a re-revision rate due to infection of 21%, as compared to 29% in revisions of a previously revised prosthesis (p = 0.1). Overall postoperative mortality was 0.6% in high-volume centers (> 30 procedures within 2 years) as opposed to 7% in the remaining centers (p = 0.003). Interpretation - The failure rates of 43% after the partial revision procedures and 30% after the 2-stage revisions in combination with the higher mortality outside high-volume centers call for centralization and reconsideration of surgical strategies. PMID:26900908
Full Text Available This paper is a brief overview of the concept of the transnational archive as a counterpoint to the idea that a national archive is necessarily a locus of a static idea of nation. The Canadian national archives is used as a case study of an archives that was transnational in its inception, and one that has continued to change in its mandate and materials as a response to patterns in migration and changing notions of multiculturalism as a Canadian federal policy. It introduces the most recent formation of the transnational archive and its denizens: the genealogical archive inhabited by family historians.
Figgie, M P; Inglis, A E; Mow, C S; Wolfe, S W; Sculco, T P; Figgie, H E
Failure of total elbow arthroplasty leads to difficult and complicated surgical reconstruction. This study evaluates the results of reconstruction after implant removal with respect to pain, motion, and functional ability. Between 1978 and 1985, 11 patients required implant removal. Indications for removal were infection for seven, implant fracture for three, and recurrent dislocation for one. The original diagnosis was rheumatoid arthritis in six elbows and traumatic arthritis in five. The average length of the follow-up period was 5.5 years after implant removal (minimum, two years). Treatment consisted of implant removal and soft-tissue arthroplasty combined with external fixation in ten patients, and attempted arthrodesis with external fixation in one. There were four good, one fair, two poor, and four failed results. Satisfactory results were obtained in seven of the eight elbows in which an anatomic arthroplasty was achieved. This consisted of containment of the ulna by the humeral epicondylar remnants. All eight elbows were pain-free with an average arc of motion of 85 degrees (range, 55 degrees to 120 degrees). They had excellent elbow flexion power; however, triceps strength was often compromised. In the three elbows in which anatomic arthroplasty could not be achieved, one was flail, one was later converted to an arthrodesis with a customized plate, and the third required an immediate arthrodesis. All three were rated as failures. Fractures occurred in five of the 11 elbows. One occurred preoperatively, three occurred intraoperatively, and one occurred postoperatively. All healed satisfactorily during the course of immobilization. The importance of an anatomic arthroplasty when removing a total arthroplasty cannot be overemphasized. Retaining the epicondylar segments is important because satisfactory results were obtained in patients in whom entrapment of the olecranon within the epicondylar ridges was obtained. Such patients can achieve a satisfactory
The need for nuclear engineering textbooks more appropriate to the Canadian nuclear industry context and the CANDU nuclear reactor program has long been felt not only among the universities offering nuclear engineering programs at the graduate level, but also within the Canadian nuclear industry itself. Coverage of the CANDU reactor system in the textbooks presently supporting teaching is limited to a brief description of the concept. Course instructors usually complement these textbooks with course notes written from their personal experience from past employment within the nuclear industry and from their research interests In the last ten years, the Canadian nuclear industry has been involved on an increasing basis with the issue of the technology transfer to foreign countries which have purchased CANDU reactors or have been in the process of purchasing one or several CANDUs. For some of these countries, the 'turn key' approach is required, in which the Canadian nuclear industry looks after everything up to the commissioning of the nuclear power plant, including the education and training of local nuclear engineers and plant personnel. Atomic Energy of Canada Limited (AECL) in particular has dispatched some personnel tasked to prepare and give short courses on some specific aspects of CANDU design and operation, but a lack of consistency was observed as different persons prepared and gave the courses rather independently. To address the many problems tied with nuclear engineering education, the CANTEACH program was set up involving major partners of the Canadian nuclear industry. Parts of the activities foreseen by CANTEACH consist in the writing of nuclear engineering textbooks and associated computer-based pedagogical material. The present paper discusses the main parts of two textbooks being produced, one in reactor physics at steady state and the other on nuclear fuel management. (author)
Butler, Norman L.; Davidson, Barry S.; Pachocinski, Ryszard; Griffith, Kimberly Grantham; Kritsonis, William Allan
This study compares Polish post-secondary vocational institutions with Canadian community colleges using an information technology conceptual framework. The research concentrated upon programs in information technology delivered by one Polish school Cracow School of Information Technology and two Canadian community colleges Durham (Oshawa,…
The Canadian Petroleum Products Institute (CPPI) is an association of Canadian companies involved in the downstream sector of the petroleum industry which includes refining, distributing and marketing of petroleum products. CPPI's mandate includes: (1) establishing environmental policies, (2) establishing working relationships with governments to develop public policy, (3) developing guidelines for the safe handling of petroleum products, and (4) providing information about the petroleum industry to the public. Canada's 19 refineries processed an average of 1.5 million barrels of crude oil per day in 1996. Domestic sources of crude made up 61 per cent of crude oil processed in 1996. Total exports during the year amounted to 105 million barrels. Some of the issues that the CPPI focused on during 1996 included the controversy over the future of the octane enhancing fuel additive MMT, fuel quality standards for transportation fuels and reformulated fuels, gasoline pricing, air quality and workplace safety. CPPI members' participation in the Voluntary Challenge and Registry (VCR) program towards reducing greenhouse gas emissions was also discussed. The industry was also actively involved in seeking to improve its refinery wastewater discharges
Kerry Robinson, MA
Full Text Available Background The Canadian Heart Health Initiative began in 1987 as an 18-year undertaking to address the epidemic of cardiovascular disease in Canada. There is growing recognition in Canada of the need for an integrated approach to prevention that addresses common risks for many chronic diseases. Context Research and intervention activities of the Canadian Heart Health Initiative have shifted toward chronic disease prevention and health promotion. This study explores the contributions of the Canadian Heart Health Initiative to document how single-disease strategies can evolve into integrated chronic disease prevention efforts. Methods Key informant interviews were conducted with project researchers and health system stakeholders from seven Canadian Heart Health Initiative provincial projects. A review of provincial health policy documents was also performed.Consequences Findings indicate that the Canadian Heart Health Initiative projects contributed to public health capacity development, including coalition and partnership building, and development of health knowledge and resource infrastructure. The Canadian Heart Health Initiative projects helped put chronic disease prevention issues onto local and provincial health agendas and provided community-based models to help develop public health policies. Interpretation Experience with the Canadian Heart Health Initiative shows the need for integrated health programs to build on existing infrastructure. Other requirements for integrated chronic disease prevention programs include shared goals, partnerships at various policy levels and in multiple sectors, ongoing information sharing, and funding that is flexible and long-term.
Doughty, Howard A.
The field of Postcolonial Studies is one of the academic fashions that has arisen in an attempt to amend or replace radical theories of social power since the alleged discrediting of Marxism. The Canadian case is more ambiguous. Postcolonialism, already an essentially contested concept, is especially conflicted where Canada is concerned. Canada…
Examines development and evolution of Canadian government information policy in response to issues of preservation of data, information industry involvement in government data development and marketing, role of Crown copyright, and public access to government information in electronic formats. Six key information policy instruments are also…
Brcic, Jelena; Della-Rossa, Irina
Values are desirable, trans-situational goals, varying in importance, that guide behavior. Research has demonstrated that universal values may alter in importance as a result of major life events. The present study examines the effect of spaceflight and the demands of astronauts' job position as life circumstances that affect value priorities. We employed thematic content analysis for references to Schwartz's well-established value markers in narratives (media interviews, journals, and pre-flight interviews) of seven Canadian astronauts and compared the results to the values of National Aeronautics and Space Administration (NASA) and Russian Space Agency (RKA) astronauts. Space flight did alter the level of importance of Canadian astronauts' values. We found a U-shaped pattern for the values of Achievement and Tradition before, during, and after flight, and a linear decrease in the value of Stimulation. The most frequently mentioned values were Achievement, Universalism, Security, and Self-Direction. Achievement and Self Direction are also within the top 4 values of all other astronauts; however, Universalism was significantly higher among the Canadian astronauts. Within the value hierarchy of Canadian astronauts, Security was the third most frequently mentioned value, while it is in seventh place for all other astronauts. Interestingly, the most often mentioned value marker (sub-category) in this category was Patriotism. The findings have important implications in understanding multi-national crew relations during training, flight, and reintegration into society.
Although the Atomic Energy Control Board was established 35 years ago the basic philosophy of nuclear regulation in Canada and the underlying principles of the regulatory process remain essentially unchanged. This paper outlines the Canadian approach to nuclear regulation and explains in practical terms how the principles of regulation are applied. (author)
Tax policies for targeted activities such as wind energy need to be efficient and effective in promoting activities that may not otherwise take place. An efficient tax policy will not have unintended consequences that may lead to tax leakage or benefits outside the targeted activity, and will be consistent with other incentives promoting the target activity. This presentation discussed Canadian tax policies related to wind power and then compared them to tax policies in the United States directed at promoting wind energy development. Benefits and subsidies available to Canadian wind energy producers include the ecoEnergy program, the Canadian Renewable and Conservation Expense (CRCE) program; and Class 43.2 directed at high efficiency and renewable energy generation equipment. The Canadian valuation methodology considers capacity factors; capital costs; leverage; interest rates; corporate tax rates; and required equity. While the ecoEnergy program is valuable as it removes the tax risk for the recipient, the CRCE may be more valuable as it does not expire and is not subject to limitations on amounts deductible. Class 43.2 is valuable but constrained by the limitations of a project's income. The United States has a production tax credit (PTC) for wind developers based on a tax credit of $15 per MWh subject to adjustment, and is available for a 10-year period, is transferable to taxable investors, and has a current value of $20. It was concluded that while Canadian subsidies are the equivalent of $7.15, US subsidies are the equivalent of $17. tabs., figs
Joao Gabriel Duarte Paes Pradella
Full Text Available OBJECTIVE: To present epidemiological data and risk factors associated with surgical out-comes favorable or unfavorable for the treatment of infection in infected total knee arthroplasty. METHODS: We reviewed medical records of 48 patients who underwent treatment of primary total knee arthroplasty for infection between January 1994 and December 2008, in the Orthopedics and Traumatology Department of the Santa Casa de Misericórdia de São Paulo. The variables associated with favorable outcome of surgical treatment (debridement and retention or exchange arthroplasty in two days or unfavorable (arthrodesis or death infection. RESULTS: A total of 39 cases of infection after primary total knee arthroplasty, 22 progressed to 17 for a favorable outcome and unfavorable outcome. Early infections (OR: 14.0, 95% CI 1.5-133.2, p = 0.016 and diabetes (OR: 11.3, 95% CI 1.4-89.3, p = 0.032 were associated with arthrodesis joint and death respectively. CONCLUSION: Patients with early infection had a higher risk of developing surgical procedure with unfavorable outcome (arthrodesis and diabetics had higher odds of death after infection of primary knee arthroplasties.
D'Arrigo, Carmelo; Perugia, Dario; Carcangiu, Alessandro; Monaco, Edoardo; Speranza, Attilio; Ferretti, Andrea
Failed treatment of an intertrochanteric fracture typically leads to profound functional disability and pain. Salvage treatment with hip arthroplasty may be considered. The aim of this study was to evaluate the results and complications of hip arthroplasty performed as a salvage procedure after the failed treatment of an intertrochanteric hip fracture. Twenty-one patients were treated in our hospital with hip arthroplasty for failed treatment of intertrochanteric hip fracture. There were sixteen women and five men with a mean age of 75.8 years (range 61-85 years). Fourteen patients had failure of a previous nail fixation procedure, five had failure of a plate fixation, one of hip screws fixation and one of Ender nail fixation. In 19 out of 21 patients we performed a total hip arthroplasty-14 cases used modular implants with long-stems and five cases used a standard straight stem. In 2 of 21 cases we used a bipolar hemiarthroplasty. A statistically significant improvement was found comparing pre and postoperative conditions (p < 0.05). Our experience confirms that total hip arthroplasty is a satisfactory salvage procedure after failed treatment of an intertrochanteric fracture in elderly patients with few serious orthopaedic complications and acceptable clinical outcomes. PMID:19572131
Full Text Available AbstractBackground and Purpose: Osteoarthritis (OA of elbow is not common but can be disabling, if it is not responding to non-operative methods. Several surgical methods are suggested (joint debridment, ulnohumeral arthroplasty, fusion and total elbow arthroplasty. In this study, we evaluated the result of ulnohumeral arthroplasty in seven patients.Materials and Methods: Seven patients (5 males and 2 females mean age 46 years of age (56-43, during 1378-1385 were operated on with the same approach. Via posterior incision of elbow along with creation of a hole (17mm diameter all of coronoid and olecranon osteophyte were removed.Results: Mean follow-up was 18 months (12-38 months. Patients were evaluated by radiographic, clinical examination and MEPS criteria. Six patients (85% had relief from pain, and obtained good to excellent results, with an increased range of motion at about 53.5 degree. One patient had relative relief of pain and moderate MEPS. After a year, only in one patient osteophyt formation and reduction in range of motion was observed.Conclusion: Due to a good to excellent results of (85%, increased range of motion in the elbow, relief of pain against low cost and short time of hospitalization, ulnohumeral arthroplasty is a suitable method of surgery in osteoarthritis of elbow.Key words: Elbow, Ulnohumeral arthroplasty, OsteoarthritisJ Mazand Univ Med Sci 2008; 18(64: 86-90 (Persian
Tribocorrosion in taper junctions of retrieved anatomic shoulder arthroplasty implants was evaluated. A comparison of the tribocorrosion between cobalt-chromium and titanium alloy stems was conducted and the observations were correlated with the individual's clinical data. Adverse effects caused by metal debris and subsequent elevated serum metal ion levels are frequently reported in total hip arthroplasty. In total shoulder arthroplasty, to date only a small number of retrieval analyses are available and even fewer address the issue of tribocorrosion at the taper junctions. A total of 36 retrieved hemiarthroplasties and total shoulder arthroplasties were assessed using the modified Goldberg score. The prevalence of fretting and corrosion was confirmed in this cohort. Titanium stems seem to be more susceptible to damage caused by tribocorrosion than cobalt-chromium stems. Furthermore, stemless designs offered less tribocorrosion at the taper junction than stemmed designs. A weak correlation between time to revision and increased levels of tribocorrosion was seen. Whether or not tribocorrosion can lead to adverse clinical reactions and causes failure of shoulder arthroplasties remains to be examined. PMID:27433471
The trading of greenhouse gas (GHG) emissions is being suggested as an effective economic way to meet Canada's Kyoto target. Emissions trading is a market-based instrument that can help achieve environmental improvements while using the market to absorb the economical and effective measures to achieve emissions reductions. Placing a value on emissions means that in order to minimize costs, companies will be motivated to apply the lowest-cost emission reductions possible for regulatory approval. The two main types of emissions trading that exist in Canada are the trading of emissions that lead to the formation of smog or acid rain, and the trading of greenhouse gas emissions that lead to climate change. Since carbon dioxide is the most prevalent GHG, making up approximately 75 per cent of Canadian GHG emissions, the trading of units of GHGs is often referred to as carbon trading. The impact that emissions trading will have on municipal operations was the focus of this primer. The trading of GHG involves buying and selling of allowances of GHGs between contracting parties, usually between one party that is short of GHG credits and another that has excess credits. The 3 common approaches to emissions trading include allowance trading (cap and trade), credit trading (baseline and credit), and a hybrid system which combines both credit and allowance trading systems. The issues that impact municipalities include the debate regarding who owns the credits from landfills, particularly if power is generated using landfill gas and the power is sold as green power. Other viable questions were also addressed, including who can claim emission reduction credits if a city implements energy efficiency projects, or fuel substitution programs. Also, will municipalities be allowed to trade internationally, for example, with municipalities in the United States, and how should they spend their money earned from selling credits. This report also presents highlights from 3 emissions
van Raaij Jos JAM; Bos Nanne; Zijlstra Wierd P
Abstract Background Osteoarthritis of the hip is successfully treated by total hip arthroplasty with metal-on-polyethylene articulation. Polyethylene wear debris can however lead to osteolysis, aseptic loosening and failure of the implant. Large head metal-on-metal total hip arthroplasty may overcome polyethylene wear induced prosthetic failure, but can increase systemic cobalt and chromium ion concentrations. The objective of this study is to compare two cementless total hip arthroplasties: ...
The following subjects are covered: the basic CANDU fuel design, the history of the bundle design, the significant differences between CANDU and LWR fuel, bundle manufacture, fissile and structural materials and coolants used in the CANDU fuel program, fuel and material behaviour, and performance under irradiation, fuel physics and management, booster rods and reactivity mechanisms, fuel procurement, organization and industry, and fuel costs. (author)
Christofides, Anna; Schauer, Claudia; Zlotkin, Stanley H.
Despite current Canadian pre- and perinatal nutrition programs, the prevalence of both iron deficiency and iron deficiency anemia (IDA) is very high among young Aboriginal children from Canada’s remote north. The major risk factors for IDA include prolonged consumption of evaporated cow’s milk, chronic infection and prolonged exclusive breastfeeding. In the present article, the authors discuss IDA as a significant public health problem in Canadian Aboriginal communities. Whereas the prevalenc...
This presentation deals with lessons learned from Canadian pre-project design review. It provides an overview of the Canadian legislative and regulatory framework and the pre-licensing review process. It highlights 12 lessons learned from design reviews, including incomplete project quality assurance program, lack of definition of design management process, lack of implementing procedures, weaknesses in considerations of interconnections between systems, non-conformances related to control of design, and difficulties in addressing the functions and responsibilities of the design authority
Carlos Roberto Schwartsmann
Full Text Available OBJECTIVE: this was an epidemiological study on trochanteric bursitis at the time of performing total hip arthroplasty.METHODS: sixty-two sequential patients who underwent total hip arthroplasty due to osteoarthrosis, without any previous history of trochanteric bursitis, were evaluated. The bursas were collected and evaluated histologically.RESULTS: there were 35 female patients (56.5% and 27 male patients (43.5%, with a mean age of 65 years (±11. Trochanteric bursitis was conformed histologically in nine patients (14.5%, of whom six were female (66.7% and three were male (33.3%.CONCLUSIONS: 14.5% of the bursas analyzed presented inflammation at the time that the primary total hip arthroplasty due to osteoarthrosis was performed, and the majority of the cases of bursitis were detected in female patients.
Madhumati, Singh; Shruthi, R; Mitul, Sojitra; Karan, Abhishek; Aziz, Abdul
Temporomandibular joint (TMJ) ankylosis is a very desolating structural condition that involves fusion of the mandibular condyle to the base of the skull. It causes difficulty in mastication and breathing. Trauma and Infections are usually responsible. If trauma occurs in young age, it leads to disturbance in growth & facial asymmetry. Treatment of temporomandibular joint (TMJ) ankylosis usually requires adequate excision of the involved ankylotic block (arthroplasty) or interpositional arthroplasty using autogenous or alloplastic materials. Early mobilization, physiotherapy & strict follow up are essential to prevent postop adhesions. In our cases fascia lata was used as an interpositional grafting material. One case was treated by gap arthroplasty, second case by costochondral graft & third case was managed with titanium condylar prosthesis. PMID:27487617
Münch, Henrik J; Jakobsen, Stig Storgaard; Olesen, Jens T; Menné, Torkil; Søballe, Kjeld; Johansen, Jeanne D; Thyssen, Jacob P
Background and purpose - It is unclear whether delayed-type hypersensitivity reactions against implanted metals play a role in the etiopathogenesis of malfunctioning total knee arthroplasties. We therefore evaluated the association between metal allergy, defined as a positive patch test reaction to...... common metal allergens, and revision surgery in patients who underwent knee arthroplasty. Patients and methods - The nationwide Danish Knee Arthroplasty Register, including all knee-implanted patients and revisions in Denmark after 1997 (n = 46,407), was crosslinked with a contact allergy patch test...... database from the greater Copenhagen area (n = 27,020). Results - 327 patients were registered in both databases. The prevalence of contact allergy to nickel, chromium, and cobalt was comparable in patients with and without revision surgery. However, in patients with 2 or more episodes of revision surgery...
Sheridan, B.D., E-mail: email@example.com [Department of Orthopaedic Surgery, Bristol Royal Infirmary, Bristol (United Kingdom); Ahearn, N.; Tasker, A.; Wakeley, C.; Sarangi, P. [Department of Orthopaedic Surgery, Bristol Royal Infirmary, Bristol (United Kingdom)
Shoulder arthroplasty is the third most common joint replacement procedure in the UK, and there are a number of different implant options available to surgeons to treat a variety of shoulder disorders. With an increasing burden placed on clinical follow-up, more patients are remaining under the care of their general practitioners and musculoskeletal triage assessment services and are not necessarily being seen by specialists. Referrals to orthopaedic specialists are therefore often prompted by radiological reports describing evidence of implant failure. This article is the first of two reviews on shoulder arthroplasty, concentrating on implant features and the indications for their use. The second article will address the modes of failure of shoulder arthroplasty and describe the relevant associated radiological features.
Shoulder arthroplasty is the third most common joint replacement procedure in the UK, and there are a number of different implant options available to surgeons to treat a variety of shoulder disorders. With an increasing burden placed on clinical follow-up, more patients are remaining under the care of their general practitioners and musculoskeletal triage assessment services and are not necessarily being seen by specialists. Referrals to orthopaedic specialists are therefore often prompted by radiological reports describing evidence of implant failure. This article is the first of two reviews on shoulder arthroplasty, concentrating on implant features and the indications for their use. The second article will address the modes of failure of shoulder arthroplasty and describe the relevant associated radiological features.
Bala, Abiram; Penrose, Colin Thomas; Seyler, Thorsten Markus; Mather, Richard Chad; Wellman, Samuel Secord; Bolognesi, Michael Paul
Computer-navigated total knee arthroplasty (CN-TKA) has been used to improve component alignment, though the evidence is currently mixed on whether there are clinically significant differences in long-term outcomes. Given the established increased costs and operative time, we hypothesized that the utilization rate of CN-TKA would be decreasing relative to standard TKA in the Medicare population given the current health care economic environment. We queried 1,914,514 primary TKAs performed in the entire Medicare database from 2005 to 2012. Current Procedural Terminology (CPT) and International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes were used to identify and separate CN-TKAs. Utilization of TKA was compared by year, gender, and region. Average change in cases per year and compound annual growth rate (CAGR) were used to evaluate trends in utilization of the procedure. We identified 30,773 CN-TKAs performed over this time period. There was an increase in utilization of CN-TKA per year from 984 to 5,352 (average = 572/year, R (2) = 0.85, CAGR = 23.58%) from 2005 to 2012. In contrast, there was a slight decrease in overall TKA utilization from 264,345 to 230,654 (average = 4297/year, R (2) = 0.74, CAGR = - 1.69%). When comparing proportion of CN-TKA to all TKAs, there was an increase from 0.37 to 2.32% (average 0.26%/year, R (2) = 0.88, CAGR = 25.70%). CN-TKA growth in males and females was comparable at 24.42 and 23.11%, respectively. The South region had the highest growth rate at 28.76%, whereas the Midwest had the lowest growth rate at 15.51%. The Midwest was the only region that peaked (2008) with a slow decline in utilization until 2012. Despite increased costs with unclear clinical benefit, CN-TKA is increasing in utilization among Medicare patients. Reasons could include patient preference, advertising, proper of coding the procedure, and increased publicly available information about
Full Text Available The Transcultural Diabetes Nutrition Algorithm (tDNA is a clinical tool designed to facilitate implementation of therapeutic lifestyle recommendations for people with or at risk for type 2 diabetes. Cultural adaptation of evidence-based clinical practice guidelines (CPG recommendations is essential to address varied patient populations within and among diverse regions worldwide. The Canadian version of tDNA supports and targets behavioural changes to improve nutritional quality and to promote regular daily physical activity consistent with Canadian Diabetes Association CPG, as well as channelling the concomitant management of obesity, hypertension, dyslipidemia, and dysglycaemia in primary care. Assessing glycaemic index (GI (the ranking of foods by effects on postprandial blood glucose levels and glycaemic load (GL (the product of mean GI and the total carbohydrate content of a meal will be a central part of the Canadian tDNA and complement nutrition therapy by facilitating glycaemic control using specific food selections. This component can also enhance other metabolic interventions, such as reducing the need for antihyperglycaemic medication and improving the effectiveness of weight loss programs. This tDNA strategy will be adapted to the cultural specificities of the Canadian population and incorporated into the tDNA validation methodology.
Connop, P J
Health care services for registered "band" Indians in Ontario are provided primarily by the Canadian Federal Government. Complex management methods preclude the direct involvement of Indian people in the decisions for their health resource allocation. Health indicators, need, and health status indexes are reviewed. The biostatistics of mortality and demography of the Indian and reference populations are aggregated with hospitalization/morbidity experience as the Chen G'1 Index, as an indicator of normative and comparative need. This is weighted by linear measurements of perceived need for preventive medicine programs, as ranked and scaled values of priorities, Zj. These were determined by community survey on 11 Indian reserves using a non-probabilistic psychometric method of "pair comparisons," based upon "Thurstone's Law of Comparative Judgement.," The calculation of the aggregate single unit Indian Health Status Index [Log.G'1].Zj and its potential application in a "zero-base" budget is described. PMID:6601223
Canadian Association in Support of the Native Peoples, Ottawa (Ontario).
The Canadian Association in Support of the Native Peoples (CASNP) seeks to promote wider awareness and understanding among non-Native Canadians for Native objectives and to assist Native peoples to develop programs and resources to further these objectives. During 1977-78 the CASNP carried out a number of programs fulfilling these dual roles. The…
In the last decade, heavy water production in Canada has progressed from the commissioning of a single unit plant in Nova Scotia to a major production industry employing 2200 persons and operating three plants with an aggregate annual production capability in excess of 1800 Mg. The decade opened with an impending crisis in the supply of heavy water due to failure of the first Glace Bay Heavy Water Plant and difficulty in commissioning the second Canadian plant at Port Hawkesbury. Lessons learned at this latter plant were applied to the Bruce plant where the first two units were under construction. When the Bruce units were commissioned in 1973 the rate of approach to design production rates was much improved, renewing confidence in Canada's ability to succeed in large scale heavy water production. In the early 1970's a decision was made to rehabilitate the Glace Bay plant using a novel flowsheet and this rebuilt plant commenced production in 1976. The middle of the decade was marked by two main events: changes in ownership of the operating plants and initiation of a massive construction program to support the forecast of a rapidly expanding CANDU power station construction program. New production units embodying the best features of their predecessors were committed at Bruce by Ontario Hydro and at La Prade, Quebec, by AECL. The high growth rate in electrical demand did not continue and some new plant construction was curtailed. The present installed production capacity will now probably be adequate to meet anticipated demand for the next decade. Canadian plants have now produced more than 7800 Mg of heavy water at a commercially acceptable cost and with a high degree of safety and compliance with appropriate environmental regulations
Frequently, the decision made by general practitioners or musculoskeletal triage assessment services to refer patients for specialist review is initiated by a radiological report. Following shoulder arthroplasty it is important to ensure that any patient with asymptomatic evidence of a failing prosthesis is referred for review so that revision surgery can be contemplated and planned before the situation becomes unsalvageable. The first paper in this series described the various types of shoulder arthroplasty and indications for each. This follow-up paper will concentrate on their modes of failure and the associated radiographic features, and is aimed at radiology trainees and non-musculoskeletal specialist radiologists.
Pierce, T D; Herndon, J H
Elbow arthroplasty most commonly is performed through a posterior approach by detaching or reflecting the triceps off the olecranon. Surgical approaches to the elbow joint that dissociate the triceps from the olecranon have distinct disadvantages. Triceps avulsion, triceps weakness, and wound healing problems have been reported. Such complications necessitate more surgery and predispose the joint to an infection. To avoid these complications a modified posterior approach to the elbow joint that preserves the triceps muscle insertion on the olecranon was used in 10 consecutive elbow arthroplasties. This method provides adequate exposure, allows early rehabilitation, and avoids triceps weakness. PMID:9755773
Choy, Won-Sik; Kim, Kap Jung; Lee, Sang Ki; Yang, Dae Suk; Lee, Neung Ki
Background This study examined the clinical and radiologic mid-term results of patients treated by Oxford minimally invasive unicompartmental knee arthroplasty. Methods One hundred and eighty-eight knees of unicompartmental knee arthroplasties with Oxford Uni® in 166 patients (16 males and 150 females), which were performed between 2002 and 2005, were reviewed. The mean age was 65.3 years (range, 44 to 82 years) and the mean follow-up period was 79.8 months (range, 56 to 103 months). The preo...
Atalar, Ata Can; Salduz, Ahmet; Cil, Hilal; Sungur, Mustafa; Celik, Derya; Demirhan, Mehmet
Objective: The aim of this study was to examine the radiological and clinical short term results of the patients who underwent reverse shoulder arthroplasty for rotator cuff arthropathy. Methods: The study included 14 (2 male, 12 female) patients who underwent reverse shoulder arthroplasty for rotator cuff arthropathy between 2009 and 2010. The mean age of the patients was 74 (57–80) years and the mean follow–up period was 32 (21–40) months. Radiological methods as well as the range of mot...
Sheridan, B.D., E-mail: firstname.lastname@example.org [Department of Orthopaedic Surgery, Bristol Royal Infirmary, Bristol (United Kingdom); Ahearn, N.; Tasker, A.; Wakeley, C.; Sarangi, P. [Department of Orthopaedic Surgery, Bristol Royal Infirmary, Bristol (United Kingdom)
Frequently, the decision made by general practitioners or musculoskeletal triage assessment services to refer patients for specialist review is initiated by a radiological report. Following shoulder arthroplasty it is important to ensure that any patient with asymptomatic evidence of a failing prosthesis is referred for review so that revision surgery can be contemplated and planned before the situation becomes unsalvageable. The first paper in this series described the various types of shoulder arthroplasty and indications for each. This follow-up paper will concentrate on their modes of failure and the associated radiographic features, and is aimed at radiology trainees and non-musculoskeletal specialist radiologists.
Boeckstyns, Michel E H; Toxværd, Anders; Bansal, Manjula; Vadstrup, Lars Soelberg
tissue, the level of chrome and cobalt ions in the blood, and the possible role of infectious or rheumatoid activity in the development of PPO. METHODS: Biopsies were taken from the implant-bone interphase in 13 consecutive patients with total wrist arthroplasty and with at least 3 years' follow...... of the radiolucent zone. The blood levels of chrome and cobalt ions were normal. There was no evidence of infectious or rheumatoid activity. CONCLUSIONS: Polyethylene wear has been accepted as a major cause of osteolysis in total hip arthroplasty, and metallic debris has also been cited to be an...
Thienpont, E; Lavand'homme, P; Kehlet, H
Total knee arthroplasty (TKA) is a major orthopaedic intervention. The length of a patient's stay has been progressively reduced with the introduction of enhanced recovery protocols: day-case surgery has become the ultimate challenge. This narrative review shows the potential limitations of day...... in a limited group of patients. The younger, male patient without comorbidities and with an excellent social network around him might be a candidate. Demographic changes, effective recovery programmes and less invasive surgical techniques such as unicondylar knee arthroplasty, may increase the size...
Most diversity management programs in Canada maintain that enhancing workforce diversity is of tremendous significance for business organizations in today’s competitive global urban markets. Since well-meaning diversity management initiatives have been largely ineffective thus far in dealing with workplace discrimination and racism in the Canadian workplace, this paper underscores the need to decenter the focus of diversity management from a business imperative to an antidiscrimination and so...
Singh, Harminder; Duerksen, Donald R
OBJECTIVE: Nutrition education is a required part of gastrointestinal training programs. The involvement of gastroenterologists in clinical nutrition once their training has been completed is unknown. The aim of the present study was to determine the practice pattern of gastroenterologists in clinical nutrition and their perceived adequacy of nutrition training during their gastroenterology (GI) fellowship.METHODS: The Canadian Association of Gastroenterology mailed a survey to all of its 463...
Ng, M. L.; Hargreaves, J. A.
To investigate the present status of nutrition education for dentists and physicians in Canada, we conducted a survey of the nutrition education programs in 10 Canadian dental and 16 medical schools in the academic year 1982-83. Seven of the dental schools and seven of the medical schools had a separate course in nutrition. The average duration of these courses was 22 hours for the dental schools and 26 hours for the medical schools. Nutrition education was integrated with another discipline ...
Hutchison, B G; Stoddart, G L
Although tetanus is now rare, vaccination is currently recommended for the entire population. Most elderly North Americans have never received tetanus vaccination. We evaluated the expected cost-effectiveness of using mailed reminders from family physicians to increase primary tetanus vaccination coverage among elderly Canadians. We estimated that over 10 years the program would prevent five cases of tetanus and one death from tetanus, resulting in a gain of 13 life-years. There would be 16,7...
Banerjee, Samik; Kulesha, Gene; Kester, Mark; Mont, Michael A
Additive manufacturing is an industrial technology whereby three-dimensional visual computer models are fabricated into physical components by selectively curing, depositing, or consolidating various materials in consecutive layers. Although initially developed for production of simulated models, the technology has undergone vast improvements and is currently increasingly being used for the production of end-use components in various aerospace, automotive, and biomedical specialties. The ability of this technology to be used for the manufacture of solid-mesh-foam monolithic and coated components of complex geometries previously considered unmanufacturable has attracted the attention of implant manufacturers, bioengineers, and orthopedic surgeons. Currently, there is a paucity of reports describing this fabrication method in the orthopedic literature. Therefore, we aimed to briefly describe this technology, some of the applications in other orthopedic subspecialties, its present use in hip and knee arthroplasty, and concerns with the present form of the technology. As there are few reports of clinical trials presently available, the true benefits of this technology can only be realized when studies evaluating the clinical and radiographic outcomes of cementless implants manufactured with additive manufacturing report durable fixation, less stress shielding, and better implant survivorship. Nevertheless, the authors believe that this technology holds great promise and may potentially change the conventional methods of casting, machining, and tooling for implant manufacturing in the future. PMID:24764230
The 1980s have seen a decline in markets for uranium concentrate, largely as a result of falling estimates for reactor fuel requirements and rising inventories. Spot market prices fell to $44 in September 1982, but have since risen back to $60. World production also fell in 1982 and is not expected to increase significantly before 1990. Some opportunities exist for Canadian producers with new low-cost deposits to replace high-cost producers in Canada and other countries, particularly the United States. There will be strong competition between Canadian producers as well as from Australia. Australia's reserves are somewhat larger than Canada's, although the reported ore grades tend to be lower than those of Saskatchewan
The companies and organizations involved, either directly or indirectly, in the wind energy industry in Canada, are listed in this directory. Some U.S. and international companies which are active or interested in Canadian industry activities are also listed. The first section of the directory is an alphabetical listing which includes corporate descriptions, company logos, addresses, phone and fax numbers, e-mail addresses and contact names. The second section contains 54 categories of products and services associated with the industry
THEME: Internationalism: Worlds at Play Topics: Internationalism, Identity in Gaming and Learning to Play Abstract: How does Canada fit into the global cultural context of video games? This paper investigates the culture being reflected in video games being produced in Canada as Canada is one of the world's leading producers of video games. It examines the how Canadian culture is represented in current new media artistic output against the culture, or lack of culture, being represented in vid...
Estimates for average mercury concentrations in crude oil range widely from 10 ng/g of oil to 3,500 ng/g of oil. With such a broad range of estimates, it is difficult to determine the contributions of the petroleum sector to the total budget of mercury emissions. In response to concerns that the combustion of petroleum products may be a major source of air-borne mercury pollution, Environment Canada and the Canadian Petroleum Products Institute has undertaken a survey of the average total mercury concentration in crude oil processed in Canadian refineries. In order to calculate the potential upper limit of total mercury in all refined products, samples of more than 30 different types of crude oil collected from refineries were measured for their concentration of mercury as it enters into a refinery before processing. High temperature combustion, cold vapour atomic absorption and cold vapour atomic fluorescence were the techniques used to quantify mercury in the samples. The results of the study provide information on the total mass of mercury present in crude oil processed in Canada each year. Results can be used to determine the impact of vehicle exhaust emissions to the overall Canadian mercury emission budget. 17 refs., 2 tabs., 2 figs
Gaines Steven T
Full Text Available Abstract Background Although the rates of perioperative morbidity and mortality with simultaneous bilateral total knee arthroplasty remain a concern, multiple studies have shown the procedure to be safe in selected patient populations. Evidence also remains mixed regarding the outcomes of total knee arthroplasty in obese patients. The purpose of this paper is to compare the rates of perioperative morbidity and mortality in consecutive obese patients undergoing two-team simultaneous bilateral total knee arthroplasty and unilateral total knee arthroplasty. Methods The records on all two-team simultaneous total knee arthroplasties and unilateral total knee arthroplasties from October 1997 to December 2007 were reviewed. A total of 151 patients with a body mass index (BMI >30 undergoing two-team simultaneous total knee arthroplasty and 148 patients with a BMI >30 undergoing unilateral total knee arthroplasty were retrospectively reviewed and analyzed to determine perioperative morbidity and mortality as well as one-year mortality rates. Results Preoperative patient characteristics did not show any significant differences between groups. The simultaneous bilateral group had significantly longer operative times (127.4 versus 112.7 minutes, p Conclusions Two-team simultaneous total knee arthroplasty appears to be safe in obese patients, with similar complication rates as compared to unilateral procedures. Two-team simultaneous total knee arthroplasty also appears to have potential benefits over a staged procedure in the obese patient, although more study is required regarding this topic.
Separate abstracts were prepared for 15 papers from the twenty-ninth Annual Conference of the Canadian Nuclear Association. Abstracts were also prepared for the 102 papers from the tenth Annual Conference of the Canadian Nuclear Society
The recent focus on public health stemming from, among other things, severe acute respiratory syndrome and avian flu has created an imperative to refine health-spending estimates in the Canadian Health Accounts. This article presents the Canadian experience in attempting to address the challenges associated with developing the needed taxonomies for systematically capturing, measuring, and analyzing the national investment in the Canadian public health system. The first phase of this process was completed in 2005, which was a 2-year project to estimate public health spending based on a more classic definition by removing the administration component of the previously combined public health and administration category. Comparing the refined public health estimate with recent data from the Organization for Economic Cooperation and Development still positions Canada with the highest share of total health expenditure devoted to public health than any other country reporting. The article also provides an analysis of the comparability of public health estimates across jurisdictions within Canada as well as a discussion of the recommendations for ongoing improvement of public health spending estimates. The Canadian Institute for Health Information is an independent, not-for-profit organization that provides Canadians with essential statistics and analysis on the performance of the Canadian health system, the delivery of healthcare, and the health status of Canadians. The Canadian Institute for Health Information administers more than 20 databases and registries, including Canada's Health Accounts, which tracks historically 40 categories of health spending by 5 sources of finance for 13 provincial and territorial jurisdictions. Until 2005, expenditure on public health services in the Canadian Health Accounts included measures to prevent the spread of communicable disease, food and drug safety, health inspections, health promotion, community mental health programs, public
Imad Kutum; Khaled Hussainey
The purpose of this study is to analyze and test the current liquidity coverage ratio of Canadian banks’, and draw conclusions about the readiness of Canadian banks to meet Basel III regulations. Liquidity coverage ratios for six major Canadian banks were calculated using the liquid assets and liabilities listed on their balance sheets from 2009 to 2013. The actual assets that meet Basel III requirements could not be acquired, as this is private information that does not have to be released u...
Matejko, Alexander J.
abstract: the canadian federation is based on the substantial autonomy of the provinces constituting it, the welfare orientation of central bodies, the volunteer activities at the grass-root level, and the external policy open to the world. there are no any doubts about the genuinely democratic character of canadian internal politics or the commitment of canadians to the world peace. the economic prosperity of the country is secured by the mineral resources, good agriculture, and the intensiv...
This article looks at the basic reasons why the Canadian banking system was recently judged by the World Economic Forum to be the soundest in the world. It does so by first examining the basic functions of a financial system and what Canadian banks are allowed to do as intermediaries within that system. It then considers the market structure of Canadian banking and the role of the Canadian government in regulating the financial system. It finishes with a discussion of the four basic managemen...
Thomas, Abbey C.; Jennifer E Stevens-Lapsley
Total knee arthroplasty (TKA) is associated with persistent quadriceps dysfunction. Since quadriceps dysfunction impairs functional performance, minimizing quadriceps dysfunction by attenuating central activation deficits early after surgery may improve function later in life. Rehabilitation strategies incorporating neuromuscular electrical stimulation and early, aggressive quadriceps strengthening may prove beneficial. Further, surgical approaches such as minimally invasive TKA may minimize ...
Amir Reza Kachooei
Distal radioulnar joint injuries are disabling and patients usually undergo one or more salvage surgeries prior to receiving an arthroplasty. The Scheker prosthesis has shown satisfactory results with 100% survival rate in all reports. The constrained design of this prosthesis gives enough stability to prevent painful subluxation.
Husted, Henrik; Gromov, Kirill; Malchau, Henrik;
NSAIDs, early mobilization, allowing early travel, and a low hemoglobin trigger for transfusion. Interpretation - Revision of traditions and myths surrounding hip and knee arthroplasty towards more contemporary evidence-based principles can be expected to improve early functional recovery, thus reducing...
Lindberg-Larsen, Martin; Jørgensen, Christoffer Calov; Husted, Henrik;
PURPOSE: The aim of this nationwide study was to investigate the early morbidity after bilateral simultaneous and staged total knee arthroplasty (TKA) in order to clarify potential benefits of a well-established fast-track regime. METHODS: The Danish National Patient Registry was searched for all...
McGraw, Phil; Kumar, Arun
Periprosthetic fracture following total knee arthroplasty is a potentially serious complication. This injury can involve the distal femur, proximal tibia or the patella. This review article analyzes the prevalence, risk factors, classification and treatment options for periprosthetic fractures of the femur.
Kort, Nanne Pieter; Van Raay, Jos J. J. A. M.; van Horn, Jim R.
Popliteal vascular injury and the compartment syndrome of the leg are rare but important complications of knee arthroplasties. Early diagnosis and treatment are of paramount importance in preventing the devastating complications of these conditions. To our knowledge, these complications have not bee
Full Text Available Background: Total hip athroplasty with the anterior surgical approach is advised because the dissection is entirely within intermuscular planes. In this report we describe a minimally invasive technique of anterior total hip arthroplasty, with the early outcomes. Materials and Methods: The technique of minimally invasive total hip arthroplasty with anterior approach (Smith-Petersen is described. We reviewed data on 100 consecutive patients who underwent anterior total hip arthroplasty with uncemented components. Mean patient age was 61 years (range 33-91. Mean patience BMI 29.8 (range 18.1-51.8. Results: Minumum follow up duration is 10 months. The mean duration of surgery was 53 min (range 34-87 with mean blood loss 185 cc (range 65-630, and the mean incision length was 10.4 cm. Clinical and radiographic outcomes were similar to historical outcomes of standard total hip arthroplasty. Conclusions: With proper surgeon training, minimally invasive total hip replacement with the anterior surgical interval is safe and efficacious.
González-Díaz, R.; Rodríguez-Merchán, E. C.; Gilbert, M. S.
The indications, surgical techniques, results and complications of shoulder fusion are described. The indications are bacterial infection, paralytic disorders in infancy, combined deltoid and rotator cuff paralysis, post-traumatic brachial plexus lesions, inflammatory arthritis with severe rotator cuff involvement, failed arthroplasty, recurrent dislocation, after resection of tumours, irreparable rotator cuff tear, painful arthritis in a patient whose activities requi...
Husted, Henrik; Jørgensen, Christoffer C.; Gromov, Kirill;
Background and purpose - Postoperative joint stiffness following total knee arthroplasty (TKA) may compromise the outcome and necessitate manipulation. Previous studies have not been in a fast-track setting with optimized pain treatment, early mobilization, and short length of stay (LOS), which m...
Zijlstra, Wierd P.; Bos, Nanne; van Raaij, Jos J. A. M.
Background: Osteoarthritis of the hip is successfully treated by total hip arthroplasty with metal-on-polyethylene articulation. Polyethylene wear debris can however lead to osteolysis, aseptic loosening and failure of the implant. Large head metal-on-metal total hip arthroplasty may overcome polyet
This report provided information about the estimated number of consumer and household batteries sold, re-used, stored, recycled, and disposed each year in Canada. The report discussed the ways in which different batteries posed risks to human health and the environment, and legislative trends were also reviewed. Data used in the report were obtained from a literature review as well as through a series of interviews. The study showed that alkaline batteries are the most common primary batteries used by Canadians, followed by zinc carbon batteries. However, lithium primary batteries are gaining in popularity, and silver oxide and zinc air button cell batteries are also used in applications requiring a flat voltage and high energy. Secondary batteries used in laptop computers, and cell phones are often made of nickel-cadmium, nickel-metal-hydroxide, and lithium ion. Small sealed lead batteries are also commonly used in emergency lighting and alarm systems. Annual consumption statistics for all types of batteries were provided. Results of the study showed that the primary battery market is expected to decline. Total units of secondary batteries are expected to increase to 38.6 million units by 2010. The report also used a spreadsheet model to estimate the flow of consumer batteries through the Canadian waste management system. An estimated 347 million consumer batteries were discarded in 2004. By 2010, it is expected that an estimated 494 million units will be discarded by consumers. The study also considered issues related to lead, cadmium, mercury, and nickel disposal and the potential for groundwater contamination. It was concluded that neither Canada nor its provinces or territories have initiated legislative or producer responsibility programs targeting primary or secondary consumer batteries. 79 refs., 37 tabs., 1 fig
Monzón, Daniel Godoy; Iserson, Kenneth V.; Jauregui, José; Musso, Carlos; Piccaluga, Francisco; Buttaro, Martin
Introduction: This study aimed to determine the dislocation and reoperation rate, functional outcomes, and the survival rate of the unique subset of very old but lucid and independent patients with hip fractures following a total hip arthroplasty (THA) and geriatric team-coordinated perioperative care. Method: Between 2000 and 2006, previously independent ambulatory patients ≥80 years old presenting with an intracapsular hip fracture were given THAs under the care of an integrated orthopedic surgery–geriatric service. Their fracture-related complications, ambulation, mental status, and survival were followed for 5 to 11 years postinjury. Results: Five years postinjury, 57 (61.3%) patients of the original study group were living. In all, 3 (3.2%) patients had postoperative hip dislocations (and 2 patients had dislocation twice) and 2 reoperations were needed within the first postoperative month. There were no hip dislocations or reoperations after the first year. Radiographs obtained on 88% of the surviving patients at 5 years postoperatively showed that all remained unchanged from their immediate postoperative images. Nearly half of the patients were still able to ambulate as they did preoperatively and their mixed-model equation was statistically unchanged. Conclusion: This study of patients >80 years old with previously good functional status demonstrates that with appropriate surgical (best prosthesis, good operating technique, and regional anesthesia) and geriatric (pre- and postoperative assessments, close follow-up, medication adjustments, and fall-prevention instruction) care, they have few hip dislocations and reoperations, survive postfracture at least as long as their noninjured contemporaries, and continue to function and ambulate as they did prior to their injury. PMID:24660092
Full Text Available Background/Aim. Infected total knee arthroplasty (TKA is a topic of great importance, because its diagnosing and treatment requires a lot of resources, and often has an unsatisfactory outcome. The aim of this study was to analyze the outcome of the treatment of infection developed following TKA. Methods. This retrospective study of infected TKAs was performed in the period from 1998 to 2008 in the Orthopedics & Traumatology Clinic of the Military Medical Academy (MMA in Belgrade. A total of 654 primary and revised TKAs were performed in the said period. We registered and surgically treated 28 infected TKAs (primary TKAs: MMA - 22, other institutions - 6. The incidence of TKA infection in the MMA was 3.36%. The most common pathogens were: Staphylococcus aureus - 14 (50% cases, and Staph. epidermidis - 3 (10.7% cases. Other isolated pathogens were: Enterococcus faecalis, Klebsiella pneum., Klebsiella spp., Streptoccocus viridans, Seratia spp, Micrococcus luteus and Peptostreptococcus spp. In one case we had mixed anaerobic flora, and in 3 cases cultures were negative. We analyzed diagnostic challenges, risk factors (such as age and previous viscosupplementation and treatment outcomes in our series of infected TKAs. Results. In our series 2 infections healed after iv antibiotics and debridement, 1 patient responded to open debridement with component retention, 4 patients responded fully to one-stage reimplantation, 10 cases responded fully to two-stage reimplantation, 11 patients ended with arthrodesis and we had 1 patient with above knee amputation. Conclusion. Two-stage reimplantation remains gold standard for treatment of infected TKA, and we recommend it as treatment of choice for eradication of infection. The antibiotic loaded spacer prothesis concept in most cases allows infection eradication, good function and high patient satisfaction.
One of the most important issues in the modern total hip arthroplasty (THA) is the bearing surface. Extensive research on bearing surfaces is being conducted to seek an ideal bearing surface for THA. The ideal bearing surface for THA should have superior wear characteristics and should be durable, bio-inert, cost-effective, and easy to implant. However, bearing surfaces that are currently being implemented do not completely fulfill these requirements, especially for young individuals for whom implant longevity is paramount. Even though various new bearing surfaces have been investigated, research is still ongoing, and only short-term results have been reported from clinical trials. Future bearing surfaces can be developed in the following ways: (1) change in design, (2) further improvement of polyethylene, (3) surface modification of the metal, (4) improvement in the ceramic, and (5) use of alternative, new materials. One way to reduce wear and impingement in THA is to make changes in its design by using a large femoral head, a monobloc metal shell with preassembled ceramic liner, dual mobility cups, a combination of different bearing surfaces, etc. Polyethylene has improved over time with the development of highly crosslinked polyethylene. Further improvements can be made by reinforcing it with vitamin E or multiwalled carbon nanotubes and by performing a surface modification with a biomembrane. Surface modifications with titanium nitride or titanium niobium nitride are implemented to try to improve the metal bearings. The advance to the fourth generation ceramics has shown relatively promising results, even in young patients. Nevertheless, further improvement is required to reduce fragility and squeaking. Alternative materials like diamond coatings on surfaces, carbon based composite materials, oxidized zirconium, silicon nitride, and sapphire are being sought. However, long-term studies are necessary to confirm the efficacy of these surfaces after enhancements
Fitzpatrick, N. [Azure Dynamics Corp., Toronto, ON (Canada)
This paper provided details of plug-in hybrid vehicles designed by Canadian companies and sponsored by the Canadian government. Canada's role in developing PHEVs and its contributions to PHEV research were also explored. The first plug-in hybrid electric vehicle (PHEV) project in Canada involved the design of a parallel hybrid with a 10 kWh battery built by a team at the University of Toronto. After an international symposium on electric vehicles was held in Toronto in 1988, a review of battery activities was conducted across Canada. Results of the review showed that new developments in advanced lithium batteries and magnets would provide new impetus for electric and hybrid vehicle designs. The success of the programs has meant that conventional hybrid technology is now successfully penetrating the delivery vehicle and shuttle bus markets. Canada now holds a leading place in the commercial hybrid vehicle niche. It was concluded that the Canadian government should continue to support programs investigating both drivelines and batteries for hybrid vehicles. 4 refs., 1 tab., 1 fig.
Johnston, Pari, Ed.
Included in this guide is a list of 65 Canadian universities and colleges offering programs in international and Native studies. Programs encompass area studies, international development, international relations, international business, international law, international agriculture, and international and comparative education. Also included are…
Plant data systems are emerging as a critical plant support system technology. In particular, plant-wide Historical Data Systems (HDS) are pivotal to the successful implementation of technical surveillance and analysis programs supporting plant operations, maintenance, safety, and licensing activities. In partnership with Canadian CANDU utility and design organizations, AECL has conducted a review of current Canadian CANDU HDS approaches with emphasis on understanding the existing functionality and uses of plant historical data systems, their future needs and benefits. The results is a vision of a plant-wide HDS providing seamless access to both near real-time and historical data, user tool-kits for data visualization and analysis, and data management of the large volume of data acquired during the life of a plant. The successful implementation of the HDS vision will lead to higher capability and capacity factors while minimizing Operations, Maintenance, and Administration (OM and A) costs. (author). 5 refs, 3 figs
Amankwah, Ernest; Campbell, Norman R C; Maxwell, Colleen; Onysko, Jay; Quan, Hude
Regular blood pressure (BP) measurements are required to identify people with hypertension and to optimally manage their cardiovascular risk. Analyses of data from the 2000-2001 Canadian Community Health Survey showed that most adult Canadians have had a BP assessment in the previous 2 years and few have never had one. Large numbers of persons without BP recordings were observed, however, among persons who were younger, were male, who did not have either a regular doctor or physician contact in the previous year, who were recent immigrants or visible minorities (nonwhite and non-Aboriginal), and who spoke neither French nor English. Common reasons reported for not having a BP assessment included believing it was not necessary and simply not getting around to it. Education programs targeting those at risk as well as more convenient BP screening may improve awareness and testing. PMID:18046100
Rodrigo Pires e Albuquerque; Giordano, Vincenzo; Amaral, Ney Pecegueiro do; Carvalho, Antônio Carlos Pires; Barretto, João Maurício
A rare occurrence of a case of Hoffa fracture pseudarthrosis in an alcoholic patient with genu valgum associated with venous insufficiency who underwent total knee arthroplasty is reported. The literature is reviewed and the main factors for surgical indication of total knee arthroplasty after a fracture of the knee are discussed. Total knee arthroplasty was a viable option in a 60-year-old patient with Hoffa fracture pseudarthrosis and comorbidities.
Werner, Birgit S.; Boehm, Dorota; Gohlke, Frank
Background Revision in failed shoulder arthroplasty often requires removal of the humeral component with a significant risk of fracture and bone loss. Newer modular systems allow conversion from anatomic to reverse shoulder arthroplasty with retention of a well-fixed humeral stem. We report on a prospectively evaluated series of conversions from hemiarthroplasty to reverse shoulder arthroplasty. Methods In 14 cases of failed hemiarthroplasty due to rotator cuff deficiency and painful pseudopa...
Singh Alka; Singh Yashwant; Singh Pankaj; Singh Vinay; Javed Sadaf; Abdunabi Murad
Abstract Introduction Total knee arthroplasty is a well-established procedure with gratifying results. There is no consensus in the literature whether to routinely resurface the patella while performing total knee arthroplasty or not. Although an extremely rare occurrence in clinical practice, patellar prosthesis dislocation is a possible complication resulting from total knee arthroplasty. Case presentation We report a rare case of atraumatic spontaneous dislocation of patellar prosthesis in...
Ball, Nicholas M.; Schade, D.; Astronomy Data Centre, Canadian
The Canadian Astronomy Data Centre (CADC) is the world's largest astronomical data center, holding over 0.5 Petabytes of information, and serving nearly 3000 astronomers worldwide. Its current data collections include BLAST, CFHT, CGPS, FUSE, Gemini, HST, JCMT, MACHO, MOST, and numerous other archives and services. It provides extensive data archiving, curation, and processing expertise, via projects such as MegaPipe, and enables substantial day-to-day collaboration between resident astronomers and computer specialists. It is a stable, powerful, persistent, and properly supported environment for the storage and processing of large volumes of data, a condition that is now absolutely vital for their science potential to be exploited by the community. Through initiatives such as the Common Archive Observation Model (CAOM), the Canadian Virtual Observatory (CVO), and the Canadian Advanced Network for Astronomical Research (CANFAR), the CADC is at the global forefront of advancing astronomical research through improved data services. The CAOM aims to provide homogeneous data access, and hence viable interoperability between a potentially unlimited number of different data collections, at many wavelengths. It is active in the definition of numerous emerging standards within the International Virtual Observatory, and several datasets are already available. The CANFAR project is an initiative to make cloud computing for storage and data-intensive processing available to the community. It does this via a Virtual Machine environment that is equivalent to managing a local desktop. Several groups are already processing science data. CADC is also at the forefront of advanced astronomical data analysis, driven by the science requirements of astronomers both locally and further afield. The emergence of 'Astroinformatics' promises to provide not only utility items like object classifications, but to directly enable new science by accessing previously undiscovered or intractable
In 2004, the Canadian government committed to reporting annual national indicators of air quality, greenhouse gas (GHG) emissions and freshwater quality in order to provide Canadians with more regular and consistent information on the state of the environment and how it is linked with human activities. The national air quality indicators in this report focused on human exposure to ground-level ozone and fine particulate matter (PM2.5). The report showed that from 1990 to 2004, the ozone indicator showed year-to-year variability, with an averaged increase of 0.9 per cent per year. Stations in southern Ontario reported the highest levels of ozone and PM2.5 in the country in 2004. There was no discernible upward or downward trend in PM2.5 levels at the national level for the 2000 to 2004 period, and GHG emissions rose 27 per cent from 1990 to 2004. In 2004, emissions were 35 per cent above the target to which Canada committed under the Kyoto Protocol. However, while total emissions rose, emissions per unit of gross domestic product (GDP) fell by 14 per cent from 1990 to 2004. GHG emissions also grew faster than the Canadian population, resulting in a 10 per cent rise in emissions per person. The freshwater quality indicator presented in this report covered the period from 2002 to 2004, and focused on the ability of Canada's surface waters to support aquatic life. For the 340 sites selected across southern Canada, water quality was rated as good or excellent at 44 per cent of sites, fair at 34 per cent of sites, and marginal or poor at 22 per cent of sites. The report included a chapter which attempted to integrate the indicators with other environmental impacts, measures of economic performance, and indices of social progress to improve the ability of the report to influence decision-making that fully accounts for environmental sustainability. 63 refs., 18 figs
North, R G
The Canadian National Seismograph Network currently consists of 5 very-broadband (VBB) and 15 broadband (BB) stations across Canada, supplemented by 6 short period (SP) stations. When it is completed by the end of 1995, a further 1 VBB, 12 BB and over 40 SP stations will have been added. Data from all sites are telemetered in real time to twin network acquisition, processing and archiving centres in Eastern and Western Canada. All data are continuously archived in SEED format on optical disk ...
Modern English is an international language inthe world.Besides Great Britain,English is spokenas first language in 39 countries.These countries arelocated in different regions with different naturalfeatures,history development and cultural character-istics.Thus,English used in these different regionscarries its own regional character—forming Englishregional varieties.The main English regional varieties are:BritishEnglish,American English,Canadian English andSouth African English.Canada is a rich country inNorth America with its own characteristics,which of
Husted, Henrik; Holm, Gitte
This study investigated whether unselected patients operated on with total hip arthroplasty (THA) or total knee arthroplasty (TKA) could accomplish a self-developed accelerated track, ANORAK-HH, with a planned length of stay (LOS) of maximum 5 days and patient satisfaction at all parts of the track....... 307 patients who sustained 329 hip and knee arthroplasties were included in the study with the main material constituted from 243 primary unilateral THA and TKA arthroplasties. ANORAK-HH includes pre-operative patient clinic, patient motivation, dedicated staff, unchanged criteria for discharge and a...
Pink, G H; Knotts, U A; Parrish, L G; Shields, C A
The Canadian Hospital Executive Simulation System (CHESS) is a computer-based management decision-making game designed specifically for Canadian hospital managers. The paper begins with an introduction on the development of business and health services industry-specific simulation games. An overview of CHESS is provided, along with a description of its development and a discussion of its educational benefits. PMID:10109530
Full Text Available In the article, the problem of Canadian lifelong education development has been studied. The main objectives of the article are defined as theoretical analysis of scientific and pedagogical literature which highlights different aspects of the research problem; periods of lifelong education development; and determination of lifelong learning role and importance in modern Canadian society.
Laye, Adele M.; Mykota, David B.
Exposure to physical violence is an unfortunate reality for many Canadian youth as it is associated with numerous negative psychosocial effects. The study aims to assist in understanding resilience in rural Canadian youth exposed to physical violence. This is accomplished by identifying the importance of protective factors, as measured by the…
Craven, Mary-Louise; Sinyor, Roberta
"CCALLNET" ("The Canadian Computer-Assisted Language Learning Network at the Post-Secondary Level") was a semi-annual newsletter published from 1987 to 2002 that was distributed to colleagues across Canada who taught languages to university students. Its objective was to create a network of Canadian faculty interested in CALL by informing them…
Rosenbloom, Albert A.
Results of a survey of U.S. and Canadian optometry programs concerning curriculum design, clinical and residency training programs, continuing education, and research projects planned or under way in geriatric optometry are presented and discussed. (MSE)
Brian J. Cole
limited prosthetic resurfacing. Section VI is "Operative treatment-elbow" including chapters arthroscopy, nonprosthetic elbow arthroplasty, biological resurfacing. The Section VII is "Operative treatment-foot and ankle" including chapters about ankle arthroscopy and cartilage repair in the ankle.The text is one of the most comprehensive and up-to-date references in the treatment of cartilage pathologies and biological joint reconstruction. Some other minimal invasive surgical techniques such as prosthetic partial resurfacing or some osteotomies are also subjected as other alternative treatments for joint restoration. Basic sciences, diagnostic imaging, pharmacological treatment and neutraceuticals, and rehabilitation are making the text. The chapter about future developments in cartilage repair is not only describing the recent technology, different types of tissue engineering and related centers in the world but also gives an idea for the possibilities of future in cartilage repair. Chapters about surgical techniques and procedures are uniformly composed of parts including introduction, preoperative evaluation, surgical technique, postoperative issues, results and references in which the techniques and management described in detail. Numerous high quality images, rich illustrations and figures, page design and also colored tables about key points, protocols, or helpful hints makes the reading and understanding easier
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)
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
Carrega, Giuliana; Antonini, Andrea; Burastero, Giorgio; Casalino-Finocchio, Giorgetta; Ronca, Agostina; Salomone, Carlo; Riccio, Giovanni
The differential diagnosis between asepting loosening or prosthetic joint infection is not always easy. Tc-99m-labelled leucocyte scans, frozen section and histology can help recognise doubtful cases. We report the experience of the Unit for Infectious Diseases and Septic Orthopaedics of the ASL-2 Liguria, Italy, with a Tc-99m-labelled leucocyte scan and intraoperative frozen section to choose the best therapeutic approach: one-stage or two-stage exchange or arthrodesis-arthroplastica. All cases underwent histology and intraoperative cultures to confirm the diagnosis, and the effectiveness of the approach was evaluated at follow up after 18 months. From January 2011 to December 2012, 36 patients were evaluated (21 hip and 15 knee arthroprosthesis). The Tc-99m-labelled leukocyte scan was positive in 31 and negative in 5 patients. Frozen section was negative in 7 patients. Five of them were patients with a negative Tc-99m-labelled leucocyte scan and were treated successfully with one-stage exchange, even if, in one of them, Enterococcus faecalis was isolated at replacement and suppressive antibiotic treatment was needed. The other 31 patients were treated with arthrodesis arthroplasty (3 patients) or a two-stage exchange. In this group the Tc-99m-labelled leucocyte scan was positive in all patients and the frozen section was positive in 29/31 cases with 6% false negative. Histology was positive in 27/31 with 13% of false negative. The sensitivity and specificity value was respectively 90% and 100% in the frozen section, 84% and 100% in histology. Cultures were positive in 23/31 cases. Patients subjected to two-stage exchange were evaluated again during prosthesis replacement but the results of the Tc-99m-labelled leucocyte scan and histology showed unclear results more frequently: the Tc-99m-labelled leucocyte scan was positive in two cases, the frozen section in three and histology in seven in spite of positive culture in three cases and one relapse in a patient
Childs, Jonathan R.; Triezenberg, Peter J.; Danforth, William W.
In September 2008, the U.S. Geological Survey (USGS), in cooperation with Natural Resources Canada, Geological Survey of Canada (GSC), conducted bathymetric and geophysical surveys in the Arctic Beaufort Sea aboard the U.S. Coast Guard cutter USCGC Healy. The principal objective of this mission to the high Arctic was to acquire data in support of delineation of the outer limits of the U.S. and Canadian Extended Continental Shelf (ECS) in the Arctic Ocean in accordance with the provisions of Article 76 of the Law of the Sea Convention. The Healy was accompanied by the Canadian Coast Guard icebreaker Louis S. St- Laurent. The science parties on the two vessels consisted principally of staff from the USGS (Healy), and the GSC and the Canadian Hydrographic Service (Louis). The crew included marine mammal and Native-community observers, ice observers, and biologists conducting research of opportunity in the Arctic Ocean. The joint survey proved an unqualified success. The Healy collected 5,528 km of swath (multibeam) bathymetry (38,806 km2) and CHIRP subbottom profile data, with accompanying marine gravity measurements. The Louis acquired 2,817 km of multichannel seismic (airgun) deep-penetration reflection-profile data along 12 continuous lines, as well as 35 sonobuoy refraction stations and accompanying single-beam bathymetry. The coordinated efforts of the two vessels resulted in seismic-reflection profile data of much higher quality and continuity than if the data had been acquired with a single vessel alone. Equipment failure rate of the seismic equipment gear aboard the Louis was greatly improved with the advantage of having a leading icebreaker. When ice conditions proved too severe to deploy the seismic system, the Louis led the Healy, resulting in much improved quality of the swath bathymetry and CHIRP sub-bottom data in comparison with data collected by the Healy in the lead or working alone. Ancillary science objectives, including ice observations, deployment
Grant, Terrill K.
The Canadian Army, like most Western armies, spent a lot of time soul-searching about the application of technology to its Command and Control processes during the height of the Cold War in the 70's and 80's. In the late 1980's, these efforts were formalized in a program called the Tactical Command, Control and Communications System (TCCCS). As envisioned, the project would replace in one revolutionary Big Bang all of the tactical communications employed in the Canadian field forces. It would also add significant capabilities such as a long range satellite communications system, a universal tactical e-mail system, and a command and control system for the commander and his staff from division to unit HQ. In 1989, the project was scaled back due to budgetary constraints by removing the divisional trunk communications system and the command and control system. At this point a contract was let to Computing Devices Canada for the core communications functionality. During the next 6 years, the Canadian Army expanded on this digitization effort by amending the contract to add in a trunk system and a situational awareness system. As well, in 1996, Computing Devices received a contract to develop and integrate a C2 system with the communications system thereby restoring the final two Cs of TCCCS. This paper discusses the architecture and implementation of the TCCCS as the revolutionary enabler of the Canadian Army's digitization effort for the early 2000 era. The choice of a hybrid approach of using commercial standards supplemented by appropriate NATO communications standards allowed for an easy addition of the trunk system. As well, conformance to the emerging NATO Communications architecture for Land Tactical Communications in the Post 2000 era will enhance interoperability with Canada's allies. The paper also discusses the pragmatic approach taken by the Canadian Army in inserting C2 functionally into TCCCS, and presents the ultimate architecture and functionality. This
Technology transfer has and will continue to play a major role in the development of nuclear power programs. From the early beginnings of the development of the peaceful uses of nuclear power by just a few nations in the mid-1940s there has been a considerable transfer of technology and today 34 countries have nuclear programs in various stages of development. Indeed, some of the major nuclear vendors achieves their present position through a process of technology transfer and subsequent development. Canada, one of the early leaders in the development of nuclear power, has experience with a wide range of programs bout within its own borders and with other countries. This paper briefly describes this experience and the lessons learned from Canada's involvement in the transfer of nuclear power technology. Nuclear technology is complex and diverse and yet it can be assimilated by a nation given a fire commitment of both suppliers and recipients of technology to achieve success. Canada has reaped large benefits from its nuclear program and we believe this has been instrumentally linked to the sharing of goals and opportunity for participation over extended periods of time by many interests within the Canadian infrastructure. While Canada has accumulated considerable expertise in nuclear technology transfer, we believe there is still much for US to learn. Achieving proficiency in any of the many kinds of nuclear related technologies will place a heavy burden on the financial and human resources of a nation. Care must be taken to plan carefully the total criteria which will assure national benefits in industrial and economic development. Above all, effective transfer of nuclear technology requires a long term commitment by both parties
Wells, James; Stras, Luke; Jeans, Tiger
The Canadian Advanced Nanospace eXperiment (CanX) Program of the Space Flight Laboratory at the University of Toronto Institute for Aerospace Studies (UTIAS/SFL) is a Canadian first, allowing engineering researchers to test nano- and micro-scale devices rapidly and inexpensively in space. CanX is a “picosatellite” program for research and education, with graduate students leading the design, development, testing, and operations of Canada’s smallest satellites having a mass under 1 kg. The fir...
Stewart, R. E.
employment losses exceeded 41,000 jobs for 2001 and 2002. This drought also contributed to a negative or zero net farm income for several provinces for the first time in 25 years with agricultural production over Canada dropping an estimated 3.6 billion in 2001/2002. Previously reliable water supplies such as streams, wetlands, dugouts, reservoirs, and groundwater were placed under stress and often failed. Despite their enormous economic, environmental, and societal impacts, there has never been a coordinated and integrated drought research program in Canada. To begin to address these issues related to drought, the Drought Research Initiative, DRI was established. The overall objective of DRI is "to better understand the physical characteristics of and processes influencing Canadian Prairie droughts, and to contribute to their better prediction, through a focus on the recent severe drought that began in 1999 and largely ended in 2005". DRI is focused on five research objectives: 1. Quantify the physical features of this recent drought 2. Improve the understanding of the processes and feedbacks governing the formation, evolution, cessation and structure of the drought 3. Assess and reduce uncertainties in the prediction of drought and its structure 4. Compare the similarities and differences of the recent drought to previous and future droughts 5. Apply progress to address critical issues of importance to society Major progress is being made within each of these research areas. These coordinated studies furthermore represent an essential step towards our ultimate goal which is to better assess whether there will be more droughts in the future over this region due to climate change, what features these droughts will exhibit, and how we can best prepare for them. The focus of these activities is on changes to occur over the next several decades and significant progress is being made in addressing these issues as well. The purpose of this presentation is to provide an overview
Ready, Kathryn; Keshavjee, Serena
Education is the self-declared "heart" of the Canadian Museum for Human Rights (CMHR), already generating partnership projects and programs with such organizations as the Canadian Teachers' Federation, the Assembly of First Nations, the Inuit Tapiriit Kanatami, and the Robert F. Kennedy Center for Justice and Human Rights. The CMHR has…
Various hydroelectric power projects in southern African countries that have benefited from Canadian expertise and assistance under the Southern African Development Community (SADC) AAA.3.4 Hydroelectric Hydrological Assistance Project, were described. The project aims to upgrade the operational hydrology units of the SADC hydroelectric utilities in the Zambezi River Basin, focusing particularly on improving the quality, availability, accessibility and utility of the hydrometric data used for inflow forecasting and inventory purposes. The data is also used for planning and operations. A current usage is to assess the sustainability of the systems implemented under the program. BC Hydro, and the Water Survey of Canada are the principal Canadian agencies involved in providing the technical expertise. Increased confidence in inflow forecasts, increased energy production, reduced loss of water due to unnecessary spilling, improved ability to safely route floods, and to cope with droughts, and improved data for design and dam safety studies are just some of the benefits derived from this example of Canadian technical assistance in the developing countries. 12 refs., 6 tabs., 4 figs
Full Text Available The Mason type III and IV radial head fractures are severe injuries that lead to decreased range of motion, alteration in the kinematics, the load transfer and the stability of the elbow. They are often in conjunction with ligament injuries, anterior or posterior joint dislocations and fractures of the coronoid process, the humeral capitulum and the olecranon. The resection of the head leads to elbow instability, late complications and arthrosis of the elbow. The open reduction and internal fixation (ORIF in Mason type III and IV fractures is not able to restore and sustain the anatomical structure and function of the radiocapitellar joint. That is why these fractures require arthroplasty. The best results are reported with the use of metal bipolar prosthetics. We present our initial experience with radial head arthroplasty on three patients with mean follow up 18 months and a review of the English literature.
Full Text Available Wear-related complications remain a major issue after unicompartmental arthroplasty. We used a computational model to predict knee wear generated in vitro under diverse conditions. Inverse finite element analysis of 2 different total knee arthroplasty designs was used to determine wear factors of standard and highly crosslinked polyethylene by matching predicted wear rates to measured wear rates. The computed wear factor was used to predict wear in unicompartmental components. The articular surface design and kinematic conditions of the unicompartmental and tricompartmental designs were different. Predicted wear rate (1.77 mg/million cycles was very close to experimental wear rate (1.84 mg/million cycles after testing in an AMTI knee wear simulator. Finite element analysis can predict experimental wear and may reduce the cost and time of preclinical testing.
Corrigan, G; Kanat, I O
The Swanson Silastic HP 100 Flexible Hinge Toe Implant (Dow Corning Wright, Arlington Tennessee) displays superior tensile, elongation and tear propagation strength in comparison to other silicone implant materials. It is, however, subject to many factors which may shorten its life-span. One reason for such failure has been attributed to the irregular contour of bone ends created after metatarsophalangeal joint arthroplasty, resulting in abrasion shards and shearing fractures of the implant stems and hinge. Titanium grommets were developed to alleviate this factor. This case report demonstrates a complication subsequent to total first metatarsophalangeal joint implant arthroplasty and the effectiveness of the Swanson Flexible Hinge Toe Joint Grommet. (Dow Corning Wright, Arlington, Tennessee). PMID:2794361
Patient-reported outcome measures in arthroplasty registries Report of the Patient-Reported Outcome Measures Working Group of the International Society of Arthroplasty Registries Part II. Recommendations for selection, administration, and analysis.
Rolfson, Ola; Bohm, Eric; Franklin, Patricia; Lyman, Stephen; Denissen, Geke; Dawson, Jill; Dunn, Jennifer; Eresian Chenok, Kate; Dunbar, Michael; Overgaard, Søren; Garellick, Göran; Lübbeke, Anne
- The International Society of Arthroplasty Registries (ISAR) Patient-Reported Outcome Measures (PROMs) Working Group have evaluated and recommended best practices in the selection, administration, and interpretation of PROMs for hip and knee arthroplasty registries. The 2 generic PROMs in common use are the Short Form health surveys (SF-36 or SF-12) and EuroQol 5-dimension (EQ-5D). The Working Group recommends that registries should choose specific PROMs that have been appropriately developed with good measurement properties for arthroplasty patients. The Working Group recommend the use of a 1-item pain question ("During the past 4 weeks, how would you describe the pain you usually have in your [right/left] [hip/knee]?"; response: none, very mild, mild, moderate, or severe) and a single-item satisfaction outcome ("How satisfied are you with your [right/left] [hip/knee] replacement?"; response: very unsatisfied, dissatisfied, neutral, satisfied, or very satisfied). Survey logistics include patient instructions, paper- and electronic-based data collection, reminders for follow-up, centralized as opposed to hospital-based follow-up, sample size, patient- or joint-specific evaluation, collection intervals, frequency of response, missing values, and factors in establishing a PROMs registry program. The Working Group recommends including age, sex, diagnosis at joint, general health status preoperatively, and joint pain and function score in case-mix adjustment models. Interpretation and statistical analysis should consider the absolute level of pain, function, and general health status as well as improvement, missing data, approaches to analysis and case-mix adjustment, minimal clinically important difference, and minimal detectable change. The Working Group recommends data collection immediately before and 1 year after surgery, a threshold of 60% for acceptable frequency of response, documentation of non-responders, and documentation of incomplete or missing data. PMID
Nageshwara Rao; Ravikumar
INTRODUCTION Ankylosing Spondylitis (AS), family of Spondyloarthritides (SpAs), is a chronic inflammatory disease affecting the axial skeleton, the entheses and occasionally the peripheral joints. The shoulders and hips are considered axial joints and involvement occurs in up to 50% of patients and is more common than involvement of the more distal joints. Aim of our study is to evaluate outcome of Cementless Total Hip Arthroplasty (THA) in ankylosing spondylitis. MAT...
Won Yong Shon
CONCLUSION: The sagittal position of pelvis is a key factor in impingement and dislocation after total hip arthroplasty. Pelvic tilting affects the position of acetabular component in the sagittal plane of the body as compared with its anatomic position in the pelvis. We suggest a preoperative lateral view of spine-pelvis, in upright and supine position for evaluation of a corrective adaptation of the acetabular cup accordingly with pelvic balance.
Massai, F.; Conteduca, F.; Vadalà, A.; Iorio, R.; Basiglini, L.; Ferretti, A.
A correct alignment of the tibial and femoral component is one of the most important factors determining favourable long-term results of a total knee arthroplasty (TKA). The accuracy provided by the use of the computer navigation systems has been widely described in the literature so that their use has become increasingly popular in recent years; however, unpredictable complications, such as displaced or stress femoral or tibial fractures, have been reported to occur a few weeks after the ope...
H Farahini; Moghtadaei, M; Bagheri, A; Akbarian, E
Background The range of motion after a total knee arthroplasty is an important clinical outcome affecting the life of the patient. The aim of this study was to determine the most important factors influencing the postoperative knee flexion in Tehran, Iran. Methods Between July 2007 and January 2009, on 95 cases of total knee joint replacement (89 patients), who were followed for 1 year postoperatively, the risk factors were assessed. Patient demographics (sex, age, body mass index, previous s...
Murat Yılmaz; Samed Ordu; Erhan Bayram; İbrahim Sungur; Ercan Çetinus
Aim: This study aimed to determine the short-term clinical and radiologic results of medial unicondylar knee arthroplasty (UKA). Methods: We retrospectively evaluated hospital records of eight patients who have undergone Oxford phase-3 medial UKA between 2011 and 2013. We included seven patients (two males and five females) in the study. The mean age of the patients was 63 years and the mean follow-up period was 17 months. The patients underwent UKA with the Oxford phase 3 cemented mobile ...
Ledford, Cameron K; Vap, Alexander R; Bolognesi, Michael P; Wellman, Samuel S
Concerns remain about total hip arthroplasty (THA) performed in very young patients, especially those with complex medical history such as allogeneic bone marrow transplantation (ABMT). This study retrospectively reviews the perioperative courses and functional outcomes of ABMT patients history of severe hematopoietic conditions requiring ABMT, these very young patients do appear to have improved pain and function following primary THA with short-term follow-up. PMID:25988690
Hermes A.S. Kamimura
Full Text Available OBJECTIVES: This paper proposes imaging with 3-dimensional vibroacoustography for postoperatively assessing the uncovered cup area after total hip arthroplasty as a quantitative criterion to evaluate implant fixation. METHODS: A phantom with a bone-like structure covered by a tissue-mimicking material was used to simulate a total hip arthroplasty case. Vibroacoustography images of the uncovered cup region were generated using a two-element confocal ultrasound transducer and a hydrophone inside a water tank. Topological correction based on the geometry of the implant was performed to generate a 3-dimensional representation of the vibroacoustography image and to accurately evaluate the surface. The 3-dimensional area obtained by the vibroacoustography approach was compared to the area evaluated by a 3-dimensional motion capture system. RESULTS: The vibroacoustography technique provided high-resolution, high-contrast, and speckle-free images with less sensitivity to the beam incidence. Using a 3-dimensional-topology correction of the image, we accurately estimated the uncovered area of the implant with a relative error of 8.1% in comparison with the motion capture system measurements. CONCLUSION: Measurement of the cup coverage after total hip arthroplasty has not been well established; however, the covered surface area of the acetabular component is one of the most important prognostic factors. The preliminary results of this study show that vibroacoustography is a 3-dimensional approach that can be used to postoperatively evaluate total hip arthroplasty. The favorable results also provide an impetus for exploring vibroacoustography in other bone or implant surface imaging applications.
Tarassoli, Payam; Punwar, Shahid; Khan, Wasim; Johnstone, David
Identification and management of patients with isolated patellofemoral osteoarthritis are challenging. Many of these patients present at a young age and it is important to distinguish degenerative change in the patellofemoral articulation from the other various causes of anterior knee pain. Once the diagnosis of isolated patellofemoral arthrosis has been made non-operative and conservative surgical techniques should be exhausted fully before prosthetic arthroplasty is considered. This review ...
Singh, Jasvinder A; Colligan, Robert C.; O’Byrne, Megan M.; David G Lewallen
Background Seligman’s theory of causal attribution predicts that patients with a pessimistic explanatory style will have less favorable health outcomes. We investigated this hypothesis using self-reported hip pain and hip function 2- years after total hip arthroplasty (THA). Methods Most THA patients had completed the Minnesota Multiphasic Personality Inventory (MMPI) during their usual clinical care long before THA (median, 14.7 to 16.6 years). Scores from the MMPI Optimism-Pessimism (PSM) s...
Ramkumar, P. N.; Harris, J D; Noble, P. C.
Objectives A lack of connection between surgeons and patients in evaluating the outcome of total knee arthroplasty (TKA) has led to the search for the ideal patient-reported outcome measure (PROM) to evaluate these procedures. We hypothesised that the desired psychometric properties of the ideal outcome tool have not been uniformly addressed in studies describing TKA PROMS. Methods A systematic review was conducted investigating one or more facets of patient-reported scores for measuring prim...
Samuel Boulezaz; Emmanuel Gibon; Philippe Loriaut; Laurent Casabianca; Romain Rousseau; Benjamin Dallaudiere; Hugues Pascal-Moussellard
This paper reports on a case of total ankylosis of the knee after a cruciate-sacrificing cemented total knee arthroplasty (TKA). An 82-year-old female patient previously underwent primary TKA for osteoarthritis twenty years ago in our institution. She had recovered uneventfully and returned to her regular activities. There was no history of postsurgical trauma; however, she progressively lost knee range of motion. Radiographs revealed severe bridging heterotopic ossification.
Griffin, Justin W.; D’Apuzzo, Michele; Browne, James A.
The theoretical advantages of metal-on-metal (MOM) bearing couples in total hip arthroplasty (THA) have been recently balanced by concerns regarding adverse local and systemic effects. Higher than anticipated early revision rates have been reported by several joint registries. Failed MOM hips present with a spectrum of symptoms and findings and traditional methods of failure must be considered in addition to the failure modes that appear to be unique to the MOM bearing couple. Metal hypersens...
Boulezaz, Samuel; Gibon, Emmanuel; Loriaut, Philippe; Casabianca, Laurent; Rousseau, Romain; Dallaudiere, Benjamin; Pascal-Moussellard, Hugues
This paper reports on a case of total ankylosis of the knee after a cruciate-sacrificing cemented total knee arthroplasty (TKA). An 82-year-old female patient previously underwent primary TKA for osteoarthritis twenty years ago in our institution. She had recovered uneventfully and returned to her regular activities. There was no history of postsurgical trauma; however, she progressively lost knee range of motion. Radiographs revealed severe bridging heterotopic ossification. PMID:27119034
Ileana Monica BORDA; IRSAY Laszlo; Rodica UNGUR; Viorela CIORTEA; Ioan ONAC; Alina SUSMAN; Liviu POP
Purpose: To measure changes in muscle power from before to 6 months after total knee arthroplasty and to compare outcomes with those from a control group of healthy adults. Material and Methods: 26 patients who underwent a total knee replacement were compared with 12 healthy age-matched adults in a prospective cohort study. Patients’ assessment was performed preoperatively, as well as at 1, 2 and 6 months postoperatively, by the isokinetic method. Healthy adults were assessed once by the same...
ZHANG Ya-feng; JIANG Qing; WANG Jun-fei
@@ Total knee arthroplasty ( TKA) is now a standard treatment for serious osteoarthritis all over the world. Although it is a standard treatment, it has many complications, among which deep vein thrombosis ( DVT) is the exclusive blood vessel complication that has been reported.1,2 However, we found a new blood vessel complication of TKA in this study, which is spontaneous arteriorrhexis in the affected lower limb.
R. G. North
Full Text Available The Canadian National Seismograph Network currently consists of 5 very-broadband (VBB and 15 broadband (BB stations across Canada, supplemented by 6 short period (SP stations. When it is completed by the end of 1995, a further 1 VBB, 12 BB and over 40 SP stations will have been added. Data from all sites are telemetered in real time to twin network acquisition, processing and archiving centres in Eastern and Western Canada. All data are continuously archived in SEED format on optical disk and access to the most recent three days of data is provided through a mail-based AutoDRM system. Continuous data from the VBB sites are sent to the FDSN Data Management Centre approximately one month after being recorded.
An overview of the various tritium research and operational activities in Canada is presented. These activities encompass tritium processing and recovery, tritium interactions with materials, and tritium health and safety. Many of these on-going activities form a sound basis for the tritium use and handling aspects of the ITER project. Tritium management within the CANDU heavy water reactor, associated detritiation facilities, research and development facilities, and commercial industry and improving the understanding of tritium behaviour in humans and the environment remain the focus of a long-standing Canadian interest in tritium. While there have been changes in the application of this knowledge and experience over time, the operating experience and the supporting research and development continue to provide for improved plant and facility operations, an improved understanding of tritium safety issues, and improved products and tools that facilitate tritium management. (author)
Sunoco Inc. is a subsidiary of Suncor Energy, one of Canada's largest integrated energy companies having total assets of $2.8 billion. As one of the major energy suppliers in the country, Sunoco Inc has a substantial stake in the emerging trends in the natural gas industry, including the Canadian natural gas price debate. Traditionally, natural gas prices have been determined by the number of pipeline expansions, weather, energy supply and demand, and storage levels. In addition to all these traditional factors which still apply today, the present day natural gas industry also has to deal with deregulation, open competition and the global energy situation, all of which also have an impact on prices. How to face up to these challenges is the subject of this discourse. tabs., figs
Full Text Available This paper will discuss the existence of a Canadian Political Business Cycle (PBC during the period 1946-1989. Logit analysis was used to determine if changes in the unemployment rate, growth of real GNE and the rate of inflation are significantly different in the period before an election than during the rest of the electoral term. It was found that the rate of growth in the unemployment rate declines and the rate of growth of real GNP increases in the four quarters before an election. The behavior of these variables reverses in the period after an election. These findings are consistent with a political business cycle. Policy variables, under a majority government, also behave in a manner associated with a PBC, with the government stimulating the economy approximately two years into its term so that good economic news will occur before it has to call an election. Minority governments tend to simulate the economy immediately after taking office.
Times have changed since the early days of nuclear energy when it was a symbol of a brave new world, Public information strategies have evolved to meet increasing public concerns, and have shifted from being a largely unfocused attempt at publicity to being more concerned with managing issues and solving problems. This paper describes some of the salient features of the Canadian experience in nuclear communications and examines four key aspects: opinion and attitude research; media relations; coeducation; and advertising. It also addresses the challenge of responding to the allegations and tactics of those who are actively hostile to nuclear energy, and recommends that the principles of Total Quality Management and of organizational effectiveness be applied more thorough and more consistently to the public affairs function
Johnson, Mike; Davidson, Jim; Mortensen, Paul
In a relatively new development over just the past few years, shale formations are being targeted for natural gas production. Based on initial results, there may be significant potential for shale gas in various regions of Canada, not only in traditional areas of conventional production but also non-traditional areas. However, there is much uncertainty because most Canadian shale gas production is currently in experimental or early developmental stages. Thus, its full potential will not be known for some time. If exploitation proves to be successful, Canadian shale gas may partially offset projected long-term declines in Canadian conventional natural gas production.
Groves, Richard R
The Canadian Forces Dental Services utilizes a dental classification system to identify those military members dentally fit for an overseas deployment where dental resources may be limited. Although the Canadian Forces Dental Services dental classification system is based on NATO standards, it differs slightly from the dental classification systems of other NATO country dental services. Data collected by dental teams on overseas deployments indicate a low rate of emergency dental visits by Canadian Forces members who were screened as dentally fit to deploy. PMID:18277717
Levine, Brett; Della Valle, Craig J; Jacobs, Joshua J
Porous tantalum is an alternative metal for total joint arthroplasty components that offers several unique properties. Its high volumetric porosity (70% to 80%), low modulus of elasticity (3 MPa), and high frictional characteristics make it conducive to biologic fixation. Tantalum has excellent biocompatibility and is safe to use in vivo. The low modulus of elasticity allows for more physiologic load transfer and relative preservation of bone stock. Because of its bioactive nature and ingrowth properties, tantalum is used in primary as well as revision total hip arthroplasty components, with good to excellent early clinical results. In revision arthroplasty, standard and custom augments may serve as a structural bone graft substitute. Formation of a bone-like apatite coating in vivo affords strong fibrous ingrowth properties and allows for substantial soft-tissue attachment, indicating potential for use in cases requiring reattachment of muscles and tendons to a prosthesis. Development of modular components and femoral stems also is being evaluated. The initial clinical data and basic science studies support further investigation of porous tantalum as an alternative to traditional implant materials. PMID:17077337
Patients with severe degenerative knee joint disease often require knee arthroplasty to reduce pain, improve stability and restore function. Insall Burstein II prosthesis is posteriorly stabilized condylar prosthesis, which provide posterior cruciate ligament substitution. It was designed to improve range of motion, stair climbing ability and to prevent posterior subluxation. Evaluate the functional outcome of total knee arthroplasty with IB II prosthesis and Evaluate the alignment of prosthetic components by radiological parameters and its correlation with functional outcome. Sixty knees of sixty patients were replaced by using Insall Burstein II prosthesis. Postoperative radiographs were evaluated for alignment of knee and prosthetic components by criteria selected from knee society roentogenographic evaluation system. Functional outcome was evaluated by rationale of knee society knee rating system. Prosthetic component was aligned in 93% and mal-alignment in 7% of the cases. There was significant improvement in functions core from mean score 33.83 +-15.5 to 59.5+-17.7 and knee score from 37 +- 12.5 to 76.4 +-2.2. Postoperative functional score was found correlated with alignment significantly. Conclusion: Total knee arthroplasty with I-B-II prosthesis is a safe durable and predictable procedure with proper surgical technique and expertise good alignment and satisfactory functional out come can be achieved. (author)
Sánchez Mayo, B; Rodríguez-Mansilla, J; González Sánchez, B
The purpose of this study was to know the effects of continuous passive mobilization in patients who underwent total knee arthroplasty. A search strategy was developed to retrieve all clinical trials, written in English and/or Spanish, published in the electronic search databases PubMed, Cochrane Library Plus, Dialnet, CSIC and PEDro. The inclusion criteria were: clinical trials published from January 2000 until November 2014 in English or Spanish. Out of 537 clinical trials that were potentially relevant, a total of 12 were included in this review. The evaluation of 1,153 patients shows that there is no significant difference in improving the range of the joint, pain, balance, motion, healing and hospital stay using continuous passive mobilization against the regular physiotherapy treatment for total knee arthroplasty. The application of continuous passive mobilization in the long-term does not provide any benefit in terms of the breadth of the range of the joint, pain and improvement of standing and motion in comparison with conventional postoperative physiotherapy treatment in total knee arthroplasty. In the short term an improvement is obtained in the range of joint motion in knee flexion. PMID:26486536
Hirschmann, Michael T. [Kantonsspital Baselland-Bruderholz, Department of Orthopaedic Surgery and Traumatology, Bruderholz (Switzerland); Henckel, Johann [Imperial College London, London (United Kingdom); Rasch, Helmut [Kantonsspital Baselland-Bruderholz, Institute for Radiology and Nuclear Medicine, Bruderholz (Switzerland)
SPECT/CT is increasingly recognized as a promising imaging modality for the investigation of patients with a painful knee after knee arthroplasty. In this review article, we give an overview of the clinical value and current and future applications of SPECT/CT for patients with knee pain following joint arthroplasty. A detailed evidence-based literature review is performed and presented. (orig.)
I.B. de Groot (Ingrid); J.B.J. Bussmann (Hans); H.J. Stam (Henk); J.A.N. Verhaar (Jan)
textabstractLimitation in daily physical activity is one of the reasons for total hip arthroplasty (THA) or total knee arthroplasty (TKA). However, studies of the effects of THA or TKA generally do not determine actual daily activity as part of physical functioning. We determined the effect of THA o
Reininga, Inge H. F.; Stevens, Martin; Wagenmakers, Robert; Bulstra, Sjoerd K.; van den Akker-Scheek, Inge
Total hip arthroplasty and total knee arthroplasty have proven to be effective surgical procedures for the treatment of hip and knee osteoarthritis. In recent decades, there have been considerable efforts to improve the component designs, modes of fixation, and surgical techniques. Minimally invasiv
Holm, Bente; Kristensen, Morten T; Bencke, Jesper;
To examine whether changes in knee-extension strength and functional performance are related to knee swelling after total knee arthroplasty (TKA).......To examine whether changes in knee-extension strength and functional performance are related to knee swelling after total knee arthroplasty (TKA)....
Husted, Henrik; Solgaard, Søren; Hansen, Torben Bæk;
The goal of this study was to describe the logistic and clinical set-up at four Danish arthroplasty departments offering fast-track surgery.......The goal of this study was to describe the logistic and clinical set-up at four Danish arthroplasty departments offering fast-track surgery....
Jensen, Claus L; Petersen, Michael Mygind; Schrøder, Henrik; Flivik, Gunnar; Lund, Bjarne
"Trabecular Metal Cone" (TM Cone) (Zimmer, Inc, Warsaw, Ind) for reconstruction of bone loss in the proximal tibia during revision total knee arthroplasty is now optional. Forty patients were randomized to receive revision total knee arthroplasty with or without TM Cone (No TM Cone). The Anderson...
Kim, Kelvin; Pham, Diep; Schwarzkopf, Ran
The potential for using mobile applications (apps) as an effective tool to monitor patients in an outpatient setting is promising. Past studies have investigated the use of applications in preoperative and postoperative settings as well as in monitoring and treating chronic illnesses such as diabetes, congestive heart failure (CHF), and multiple sclerosis. However, there is limited data on its specific use in the context of total knee arthroplasty. Given the complicated nature and crucial role of patient adherence to protocols during the preparatory and recovery phases of the procedure, the use of an app can serve as a helpful tool in aiding patients throughout this process. We present a pilot study to assess the efficacy of using such an app in order to monitor patient adherence to total knee arthroplasty-specific preoperative and postoperative protocols. Preoperative protocols used in this study included a 5-item medication protocol and multiple activity instructions. Postoperative patient protocols included following instructions on topics such as recording responses to quality-of-life questions, when and how to contact the clinical team if patients had non-emergent concerns or questions, and carrying out daily physical therapy (PT) exercises. Patients received and recorded responses to these preoperative and postoperative instructions using the iGetBetter program application installed on an iPad Mini, provided to the participants. Patient adherence was based on the data gathered from the patient responses inputted on this app. Adherence rates were comparable to those reported in various past studies that also investigated rates of adherence to health management-related instructions communicated through mobile apps. PMID:27042789
The cornerstone of the CANDU concept is its natural uranium fuel, and the success of its reactor operation hinges on the fuel condition in the reactor. Neutron economy, on power refuelling, and simple fuel design are among the unique characteristics of CANDU fuel. In Canadian CANDU 6 reactors (Gentilly 2 and Point Lepreau), the 37-element fuel has provided an enviable record of safe, economic and reliable plant operation for 29 reactor years to date. The fuelling cost is among the lowest in the world - a corollary of high neutron economy, simple fuel design, and judicial fuelling scheme. The reliability of fuel is high: only 21 of the 60000 bundles discharged from Gentilly 2 were confirmed defective and the five-year period from March 1992 to February 1997 saw no defect at all at Gentilly-2. Also, thanks to the inherent on-power refuelling capability and an effective defect detection and removal system, the primary coolant loops are kept extremely clean (very low activity level) - benefiting both maintenance and safety. Moreover, the inventories of fission products in the core and in the channel are maintained within the safety analysis envelope, due to on-power fuelling and sophisticated fuel management. In this paper, CANDU 6 fuel performance is reviewed against the feedback from post-irradiation examinations, and the findings from our ongoing R and D program. The results suggest that the fuel behavior m reactor are basically as originally anticipated, despite an evolutionary 3% increase in bundle uranium mass in the 1980's. For operating conditions within the CANDU 6 37-element experience, the average strains are typically 0.09%; and fission gas release, 2.7%. The UO2 fuel remains stoichiometric after irradiation. In-core measurements of pressure tube fitting are generally low. All these observations are consistent with the excellent fuel performance statistics coming out of the two Canadian CANDU 6 reactors. Additionally, this paper will briefly discuss our
Daniel J. Kim
Full Text Available Introduction: Starting in 2008, emergency ultrasound (EUS was introduced as a core competency to the Royal College of Physicians and Surgeons of Canada (Royal College emergency medicine (EM training standards. The Royal College accredits postgraduate EM specialty training in Canada through 5-year residency programs. The objective of this study is to describe both the current experience with and the perceptions of EUS by Canadian Royal College EM senior residents. Methods: This was a web-based survey conducted from January to March 2011 of all 39 Canadian Royal College postgraduate fifth-year (PGY-5 EM residents. Main outcome measures were characteristics of EUS training and perceptions of EUS. Results: Survey response rate was 95% (37/39. EUS was part of the formal residency curriculum for 86% of respondents (32/37. Residents most commonly received training in focused assessment with sonography for trauma, intrauterine pregnancy, abdominal aortic aneurysm, cardiac, and procedural guidance. Although the most commonly provided instructional material (86% [32/37] was an ultrasound course, 73% (27/37 of residents used educational resources outside of residency training to supplement their ultrasound knowledge. Most residents (95% [35/37] made clinical decisions and patient dispositions based on their EUS interpretation without a consultative study by radiology. Residents had very favorable perceptions and opinions of EUS. Conclusion: EUS training in Royal College EM programs was prevalent and perceived favorably by residents, but there was heterogeneity in resident training and practice of EUS. This suggests variability in both the level and quality of EUS training in Canadian Royal College EM residency programs.
Queiroz, Roberto Dantas; Faria, Rafael Salomon Silva; Duarte, David Marcelo; Takano, Marcelo Itiro; Sugiyama, Mauricio Morita
Objective: To investigate the percentage of ideal patients who would be eligible for hip-resurfacing surgery at a reference service for hip arthroplasty. Methods: Out of all the cases of hip arthroplasty operated at Hospital do Servidor Público Estadual de São Paulo (HSPE) between January 2009 and December 2010, we assessed a total of 592 procedures that would fit the criteria for indication for resurfacing arthroplasty, after clinical and radiological evaluation according to the criteria established by the Food and Drug Administration (FDA) and by Seyler et al. Results: Among the total number of hip replacement arthroplasty cases, 5.74% of the patients were eligible. Among the patients who underwent primary arthroplasty, we found that 8.23% presented ideal conditions for this procedure. Conclusion: The study demonstrated that this type of surgery still has a limited role among hip surgery methods. PMID:27047851
Trakman, Leon E.
Academically, Canadian education is at the crossroads between formalism and functionalism, with the latter prevailing in recent years. There now arises a demand for a more integrated approach, linking legal theory with legal practice. (MSE)
Dobni, Dawn; Dobni, Brooke
Using Porter's five-forces model (potential entrants, suppliers, buyers, rivalry, substitutes) to analyze competition in Canadian university business schools, the authors conclude that schools are becoming increasingly vulnerable to competitive pressures and that strategic reorientation is necessary. (SK)
Boyd, Amanda D; Jardine, Cynthia G; Driedger, S Michelle
A Canadian case of bovine spongiform encephalopathy (BSE) or "mad cow disease" was confirmed in May, 2003. An in-depth content analysis of newspaper articles was conducted to understand the portrayal of BSE and variant Creutzfeldt-Jakob disease (vCJD) in the Canadian media. Articles in the "first 10 days" following the initial discovery of a cow with BSE in Canada on May 20, 2003, were examined based on the premise that these initial stories provide the major frames that dominate news media reporting of the same issue over time and multiple occurrences. Subsequent confirmed Canadian cases were similarly analyzed to determine if coverage changed in these later media articles. The results include a prominence of economic articles, de-emphasis of health aspects, and anchoring the Canadian outbreak to that of Britain's crisis. The variation in media representations between those in Canada and those documented in Britain are explored in this study. PMID:19697246
This document provides information and presents data on the energy situation in many regions of Canada. The first part deals with the petroleum and the bitumen shales of Alberta (reserves, exploitation and production, environmental impacts), the second part discusses with the hydroelectricity choice of Quebec and the 2004 crisis. The nuclear situation of Ontario is presented in the third part (nuclear park, programs, uranium reserves, research and development on Candu reactors), while the fourth part deals with the renewable energies (wind power and biomass). The canadian situation facing the Kyoto protocol is discussed in the last part. (A.L.B.)
Grand'Maison, P.; Lescop, J; Brailovsky, C. A.
The use of structured clinical examinations to improve the evaluation of medical students and graduates has become significantly more common in the past 25 years. Many Canadian medical educators have contributed to the development of this technique. The Canadian experience is reviewed from the introduction of simulated-standardized patients and objective-structured clinical examinations to more recent developments and the use of such examinations for licensure and certification.
This narrative research study explored the socio-cultural context surrounding depression through semi-structured interviews with six South Asian Canadian participants, who self identified as having experienced depression. The study sought to expand on the knowledge of depression and South Asian Canadians by considering the roles of the family, the community, and the culture in the experiences of depression. Thematic analysis of the participant interviews resulted in five major themes: the exp...
Canadian national identity is closely related to anti-Americanism and for Canadians,comparing with America has become the main way to identify themselves.So some scholars argue that Canada lacks a real national identity and this is the main reason of its anti-American tradition.However,the author remarks Canada has its national identity.In this paper,the author will present three reasons to support her view.
Canadian national identity is closely related to antiAmericanism and for Canadians,comparing with America has become the main way to identify themselves.So some scholars argue that Canada lacks a real national identity and this is the main reason of its anti-American tradition.However,the author remarks Canada has its national identity.In this paper,the author will present three reasons to support her view.
A survey conducted by Decima Research in April 1989 showed that 50% of Canadians were somewhat or strongly in favour of nuclear energy, the percentage varying from 37% in British Columbia to 65% in Ontario. A majority (56%) questioned the nuclear industry's ability to handle its waste safely, but 45% believed that it was working hard to solve the problem. It was evident that an advertising campaign by the Canadian Nuclear Association had an effect
Bennett Sutton; Tamim Bayoumi; Andrew Swiston
We analyze the flexibility of the Canadian labor market across provinces in both an interand intra-national context using macroeconomic data on employment, unemployment, participation, and (for Canada) migration and real wages. We find that Canadian labor markets respond in a similar manner to their U.S. counterparts and are more flexible than those in major euro area countries. Within Canada, the results indicate that labor markets in Ontario and provinces further west are more flexible, par...
Adsera, Alicia; Ferrer, Ana
We use the confidential files of the 1991-2006 Canadian Census, combined with information from O*NET on the skill requirements of jobs, to explore whether Canadian immigrant women behave as secondary workers, remaining marginally attached to the labour market and experiencing little career progression over time. Our results show that the labor market patterns of female immigrants to Canada do not fit the profile of secondary workers, but rather conform to patterns recently exhibited by marrie...
Clay materials will be an important component of a barrier and sealing system in a nuclear fuel waste disposal vault in Canada. In this report the elemental, mineralogical, and pore-solution compositions of candidate clay sealing materials for the Canadian Nuclear Fuel Waste Management Program are presented
Gouthro, Patricia A.
This paper examines a qualitative research study which examines the experiences of ten Jamaican and Canadian women engaged in learning via distance in a graduate adult education program. Using a critical feminist perspective, three power issues emerged as topics for discussion that are important for distance educators in higher education to take…
Dubuc-Charbonneau, Nicole; Durand-Bush, Natalie; Forneris, Tanya
The purpose of the current study was to examine the levels of burnout among student-athletes at two Canadian universities and to investigate whether there were significant differences related to gender, sport, year of university sport participation, academic year, and academic program. Burnout was measured by administering Raedeke and Smith's…
Harrington, Marni R.; Marshall, Elizabeth
Mentoring expectations, activities, and support in Canadian college and university libraries were investigated by surveying 332 recent MLIS graduates, practicing academic librarians, and library administrators. Findings indicate that the presence of a mentoring program will help attract new librarians, retain them, and aid in restructuring efforts…
Beristain, Maureen Fanning
This study examines bibliographic instruction methods and aids currently being used in selected Canadian academic libraries. The project's objectives included identifying: the current state of bibliographic instruction; programs or special services offered for foreign students; changes or developments that have taken place in bibliographic…
Rapoport, Mia Quint; Finlay, Sara-Jane; Hillan, Edith
This research study is a phenomenological exploration of academics from one Canadian university who either are participating in a phased retirement program or have delayed their retirement beyond the normal retirement age of 65. It is based on face-to-face interviews with 24 professors, male and female, between the ages of 55 and 69, from an array…
Kurucz, Sue; Rietze, Lori; Lim, Angie; Swamy, Mindy
Canada does not have enough nurses with doctoral degrees. Such nurses fill important roles as researchers, educators, leaders, and clinicians. While a growing number of Canadian universities offer doctorate degrees in nursing, most institutions have only traditional on-campus programs, posing barriers for nurses who reside in places geographically…
At a conference of the Canadian electric utility industry, presentations were made on topics including revenue assurance, customer services, deregulation and markets, competition, training programs, retirement incentives, information systems, pricing policies, assessment methods, electricity trade, energy efficiency, and performance improvement. Separate abstracts have been prepared for seven presentations from this conference
Code verification and validation are the key elements during any computer program development. Canadian regulatory framework provides requirements and guidelines for conducting code validation activities that are consistent with other jurisdictions. It also ensures that verification and validation process in support of the design and licensing of CANDU power reactors is compliant with regulatory expectations. The paper presents a new Canadian regulatory perspective for key software QA activities: code verification and validation. Also, the regulatory approved practices for planning, conducting and documentation produced to support verification and validation of computer codes are also discussed. (author)
The consequences to man and the environment of the disposal of nuclear fuel waste are being studied within the Canadian Nuclear Fuel Waste Management Program. The concept being assessed is that of a sealed disposal vault at a depth of 1000 m in plutonic rock in the Canadian Shield. To determine the consequences, the vault and its environment are simulated using a SYstem Variability Analysis Code (SYVAC), a stochastic model of the disposal system. SYVAC contains three submodels that represent the three major parts of the disposal system: the vault, the geosphere and the biosphere. This report documents the conceptual and mathematical framework of the vault submodel
Human Resources and Social Development Canada, 2008
In 2007, Human Resources and Social Development Canada commissioned Environics Research Group Limited to conduct a public opinion survey on labour market issues among 3,000 adult Canadians. The objective of the public opinion survey was to better understand the perceptions of Canadians regarding labour market challenges and opportunities in order…
The directory is intended to help potential PV customers identify Canadian-based companies who can meet their needs, and to help product manufacturers and distributors identify potential new clients and/or partners within the PV industry for new and improved technologies leading to greater end-use customer satisfaction. The principal feature of the directory is an information matrix that identifies the product and service types offered by each firm and the primary clients served. There is also a list of companies by province and territory, followed by an alphabetical listing of all companies, with detailed information including, mailing address, contact person, prime activity, geographic area served, languages in which services are provided, and a brief company profile. Additional information provided by the companies themselves, dealing with items such as number of systems sold, the total installed capacity, etc., is included in an 'experience matrix' for each firm. Sources of additional information on photovoltaic systems are included in a list at the end of the directory
Cappon, P; Watson, D
The recent Canadian experience in promoting social accountability and social responsiveness of medical schools has been one of steady improvement in certain institutions, against a background lacking overall national policy direction. Canada has several distinct advantages in trying to devise means of enhancing social accountability of medical training and health services, including a strong national system of publicly supported and financed health care of high quality, a network of excellent academic medical centers, and well-established accreditation bodies. A review of the literature, complemented by a new survey of Canadian medical schools, confirms that some of the centers, conscious of the need to promote social responsiveness, are developing innovative programs to do so. Future progress toward the goal of social responsiveness of medical schools on a pan-Canadian basis will require a more cohesive approach involving systematic sharing of best practices among academic health centers, effective alliances with other health professionals to promote these objectives, and support by federal and provincial ministries of health. Canadian awareness of an international movement tending to similar objectives would support the efforts of Canadian health professionals engaged in practices of enhanced accountability. PMID:10495748
the Telage Researchers
Full Text Available This study aimed at exploring patients’ perceptions regarding telerehabilitation services received post total knee replacement. In this qualitative embedded single case study, semi-structured interviews were conducted with five patients who had previously received in-home telerehabilitation post total knee arthroplasty. Participants were asked to reflect on their 8-week rehabilitation process and on their experience with the home telerehabilitation program. Interviews were transcribed and a qualitative thematic analysis was conducted. Six overarching themes emerged from the patients’ perceptions: (1 improving access to services with reduced need for transportation; (2 developing a strong therapeutic relationship with therapist while maintaining a sense of personal space; (3 complementing telerehabilitation with in-person visits; (4 providing standardized yet tailored and challenging exercise programs using telerehabilitation; (5 perceived ease-of-use of telerehabilitation equipment; and (6 feeling an ongoing sense of support. Gaining a better understating of the patient’s experience in telerehabilitation will be essential as programs continue to be developed and implemented.
Alaca, Nuray; Atalay, Ayçe; Güven, Zeynep
[Purpose] The aim of this longitudinal study was to examine the long term functional effectiveness of proprioceptive neuromuscular facilitation (PNF) after total knee arthroplasty. [Subjects and Methods] We included 30 patients and they were randomly assigned to two groups. In addition to the standard rehabilitation program the PNF group received proprioceptive neuromuscular facilitation therapy and the CPM group received continuous passive motion therapy. The outcome measures included range of motion using a goniometer, pain scores using a numeric pain rating scale, days to reach functional benchmarks, the Beck depression scale and isokinetic torque and isometric strength measurements. [Results] There were no significant differences between the two groups in terms of baseline demographic data, clinical findings and length of stay. Days to reach range of motion benchmarks were similar in the two groups. Pain at the 8th week was slightly higher in the PNF group. With the exception of walking with a walker, days to reach functional benchmarks were statistically significantly fewer in patients of the PNF group despite similar isokinetic measurements. Administration of PNF resulted in earlier functional gains in patients after total knee arthroplasty. These functional accomplishments were more pronounced in the PNF group despite it having isokinetic torque measurements similar to those of the CPM group. [Conclusion] PNF techniques can positively affect functional outcomes over the long term. PMID:26696702
Objective To provide a clinical summary of the Canadian clinical practice guidelines for acute bacterial rhinosinusitis (ABRS) that includes relevant considerations for family physicians. Quality of evidence Guideline authors performed a systematic literature search and drafted recommendations. Recommendations received both strength of evidence and strength of recommendation ratings. Input from external content experts was sought, as was endorsement from Canadian medical societies (Association of Medical Microbiology and Infectious Disease Canada, Canadian Society of Allergy and Clinical Immunology, Canadian Society of Otolaryngology—Head and Neck Surgery, Canadian Association of Emergency Physicians, and the Family Physicians Airways Group of Canada). Main message Diagnosis of ABRS is based on the presence of specific symptoms and their duration; imaging or culture are not needed in uncomplicated cases. Treatment is dependent on symptom severity, with intranasal corticosteroids (INCSs) recommended as monotherapy for mild and moderate cases, although the benefit might be modest. Use of INCSs plus antibiotics is reserved for patients who fail to respond to INCSs after 72 hours, and for initial treatment of patients with severe symptoms. Antibiotic selection must account for the suspected pathogen, the risk of resistance, comorbid conditions, and local antimicrobial resistance trends. Adjunct therapies such as nasal saline irrigation are recommended. Failure to respond to treatment, recurrent episodes, and signs of complications should prompt referral to an otolaryngologist. The guidelines address situations unique to the Canadian health care environment, including actions to take during prolonged wait periods for specialist referral or imaging. Conclusion The Canadian guidelines provide up-to-date recommendations for diagnosis and treatment of ABRS that reflect an evolving understanding of the disease. In addition, the guidelines offer useful tools to help
Full Text Available Total hip arthroplasty in degenerative pathology secondary to congenital dysplasia differentiates itself amongtotal arthroplasties by the frequent technical difficulties it poses and the site where it is performed. The existence of aform of congenital dysplasia that remained untreated or insufficiently treated in childhood leads to irreversibledeformities in adulthood. Partial or total loss of joint congruence causes, in time, degenerative changes with theimpairment of hip mobility and is associated with a number of progressive deformations (limb length discrepancy,abnormal rotation, asymmetric lesions, periarticular muscle failure, which gradually reduce the quality of the patient’slife. This study aims at investigating the incidence of prosthetic hip arthroplasty for osteoarthritis secondary todysplastic hip in the total number of arthroplasties, the age when surgery is performed, the type of deformity andprosthetic components used, and the postoperative and long-term functional results. The study was conducted on 110patients who received total hip arthroplasty due to osteoarthritis secondary to hip dysplasia, between 1994 and 2011, inthe Orthopaedics Trauma Department of the Rehabilitation Hospital of Iasi, the incidence being of 3.34% of the totalnumber of arthroplasties, with a prevalence of 65% under the age of 50 years. The functional results were assessed,according to the Harris-hip-score parameters, as good or very good in proportion of 82%. The complexity of the areawhere the total hip arthroplasty is performed requires a good management consisting of thorough preoperativeplanning, determining the operatory indication, and specialized and individualized medical recovery.
Full Text Available Most diversity management programs in Canada maintain that enhancing workforce diversity is of tremendous significance for business organizations in today’s competitive global urban markets. Since well-meaning diversity management initiatives have been largely ineffective thus far in dealing with workplace discrimination and racism in the Canadian workplace, this paper underscores the need to decenter the focus of diversity management from a business imperative to an antidiscrimination and social justice imperative. Within this latter perspective, the paper examines the strengths and limitations of the antiracism approach that has been implemented in various developed countries in recent years. The antiracism approach is an action-oriented strategy for institutional and systemic change that has at its core the interrogation of privilege, power disparities, and other forms of inequity within the organization. Drawing from the lessons of various initiatives that have utilized this approach, the present paper emphasizes the need for a nuanced antiracism approach in the multicultural Canadian society if diversity management is to attain its goal of greater inclusion of all individuals in informal networks and formal organizational programs.
Amir Reza Kachooei
Full Text Available Background: Conventional treatments after complicated injuries of the distal radioulnar joint (DRUJ such as Darrach and Kapandji-Sauvé procedures have many drawbacks, which may eventually lead to a painful unstable distal ulna. The development of DRUJ prosthesis has significantly evolved over the past years. In this study, we assessed the outcome results of patients after DRUJ implant arthroplasty using the Aptis (Scheker prosthesis. Methods: We identified 13 patients with 14 prosthesis during the past 10 years. Patients underwent DRUJ arthroplasty due to persistent symptoms of instability, chronic pain, and stiffness. Records and follow-up visits were reviewed to find the final post-operative symptoms, pain, range of motion, and grip strength with a mean follow-up of 12 months (range: 2-25 months. Also, patients were contacted prospectively by phone in order to minister the disabilities of the armshoulder and hand (DASH, patient rated wrist evaluation (PRWE, and visual analogue scale (VAS, and to interview regarding satisfaction and progress in daily activities. Eleven patients out of 13 could be reached with a median followup time of 60 months (range: 2 to 102 months. Results: No patient required removal of the prosthesis. Only two patients underwent secondary surgeries in which both required debridement of the screw tip over the radius. The median DASH score, PRWE score, VAS, and satisfaction were 1.3, 2.5, 0, and 10, respectively. The mean range of flexion, extension, supination, and pronation was 62, 54, 51, and 64, respectively. Conclusions: Distal radioulnar joint injuries are disabling and patients usually undergo one or more salvage surgeries prior to receiving an arthroplasty. The Scheker prosthesis has shown satisfactory results with 100% survival rate in all reports. The constrained design of this prosthesis gives enough stability to prevent painful subluxation.
Mayerhoefer, M.E.; Fruehwald-Pallamar, J.; Czerny, C. [Univ.-Klinik fuer Radiodiagnostik, Medizinische Universitaet Wien, Abteilung fuer Neuroradiologie und Muskuloskelettale Radiologie, Wien (Austria)
The hip joint is the largest joint in the human body and consequently, its evaluation by diagnostic imaging is highly important. This includes imaging of hip joint arthroplasty, which is used to avoid joint immobility following a wide spectrum of diseases, such as end-stage degenerative disease, avascular necrosis of the femoral head or post-traumatic fractures. Conventional radiography is still the standard imaging modality for the evaluation of hip arthroplasty both directly following surgery and for periodical follow-up. In the majority of cases conventional radiography enables adequate assessment of early and late complications that can arise following hip arthroplasty, such as loosening, prosthetic or periprosthetic fracture, luxation, infection and soft tissue calcification. If the diagnosis cannot be established by means of radiography, advanced imaging methods such as computed tomography (CT) and magnetic resonance imaging (MRI), with or without injection of contrast media, may provide additional information. This is particularly true for the depiction of inflammatory processes. Regardless of the imaging modality used patients' clinical symptoms must also be taken into account in order to establish the correct diagnosis. (orig.) [German] Dem Hueftgelenk als groesstem Gelenk des menschlichen Koerpers kommt eine besondere Bedeutung in der muskuloskelettalen Radiologie zu. Entsprechend wichtig ist auch die radiologische Beurteilung von Hueftgelenkendoprothesen, die z. B. infolge degenerativer Gelenkerkrankungen, einer Hueftkopfnekrose oder einer Fraktur eingesetzt werden. Die Projektionsradiographie ist weiterhin die primaere Modalitaet zur Beurteilung von Hueftgelenkendoprothesen, direkt postoperativ und zur laengerfristigen Verlaufskontrolle. Diese Methode erlaubt in der Mehrzahl der Faelle eine suffiziente Antwort auf die Frage nach Lockerung, periprothetischer Fraktur oder Prothesenmaterialbruch, Luxation, Infektion und Weichteilkalzifikation
Canadians' health and their social and economic well-being are fundamentally linked to the quality of their environment. Recognizing this, in 2004 the Government of Canada committed to establishing national indicators of freshwater quality, air quality and greenhouse gas emissions. The goal of these new indicators is to provide Canadians with more regular and reliable information on the state of their environment and how it is linked with human activity. Canadians need clearly defined environmental indicators - measuring sticks that can track the results that have been achieved through the efforts of governments, industries and individuals to protect and improve the environment. Environment Canada, Statistics Canada and Health Canada are working together to further develop and communicate these indicators. Reflecting the joint responsibility for environmental management in Canada, this effort has benefited from the cooperation and input of the provinces and territories. The indicators are: air quality; greenhouse gas emissions; and, freshwater quality. Air quality tracks Canadians' exposure to ground-level ozone - a key component of smog. The indicator measures one of the most common, harmful air pollutants to which people are exposed. The use of the seasonal average of ozone concentrations reflects the potential for long-term health effects. Greenhouse gas emissions tracks the annual releases of the six greenhouse gases that are the major contributors to climate change. The indicator comes directly from the greenhouse gas inventory report prepared by Environment Canada for the United Nations Framework Convention on Climate Change (UNFCCC) and the Kyoto Protocol. The data are widely used to report on progress toward Canada's Kyoto target for reduced emissions. Freshwater quality reports the status of surface water quality at selected monitoring sites across the country. For this first report, the focus of the indicator is on the protection of aquatic life, such as
Full Text Available Temporomandibular joint (TMJ ankylosis is a disorder that leads to a restriction of the mouth opening from partial reduc tion to complete immobility of the jaw. The author retrospectively analyzed 20 patients with TMJ ankylosis which were treated by gap a rthroplasty in department of surgery, Government Medical Colleg e, Haldwani from March 2008 to J an 2015. Mean follow up was at least twenty - four months ( M inimum 24 and maximum 48 months. The purpose of this paper was to show that gap arthroplasty improve m outh opening when treating TMJ ankylosis. This was the first study in Kumaon region of U ttarakhand .
Pierce, Todd P; Jauregui, Julio J; Cherian, Jeffrey J; Elmallah, Randa K; Harwin, Steven F; Mont, Michael A
Orthopedic surgeons resurface the patella during total knee arthroplasty to avoid complications such as pain, patello-femoral arthritis, and patellar maltracking and to reduce the risk for reoperation. However, many complications, such as decreased range of motion, increased fractures, and polyethylene wear, have been described with this procedure. One determinant when resurfacing a patella is the thickness of its cuts. This review aims to investigate the relationship between patellar thickness and outcome parameters such as range of motion, patient-reported outcomes, periprosthetic fractures, and reoperations. PMID:26726982
Nikolajsen, Lone; Brandsborg, Birgitte; Lucht, Ulf;
chronic pain after THA in relation to pre-operative pain and early post-operative pain. METHODS: A questionnaire was sent to 1231 consecutive patients who had undergone THA 12-18 months previously, and whose operations had been reported to the Danish Hip Arthroplasty Registry. RESULTS: The response rate...... was 93.6%. Two hundred and ninety-four patients (28.1%) had chronic ipsilateral hip pain at the time of completion of the questionnaire, and pain limited daily activities to a moderate, severe or very severe degree in 12.1%. The chronic pain state was related to the recalled intensity of early post...
Klit, Jakob; Jacobsen, Steffen; Schmiegelow, Victoria; Sonne-Holm, Stig; Troelsen, Anders
In this prospective multicentre cohort study we studied subjects younger than 60 years of age scheduled for primary total hip arthroplasty (THA). The study assessed patients' overall satisfaction, fulfillment of preoperative expectations, the effect on socioeconomic parameters, and quality of sex...... abilities in intercourse positions were experienced by 18 of 39 females due to reduced pain and increased range of motion. Patients sexually active before THA surgery remained active. These findings constitute important new information to young patients and surgeons during the decision making process....
Inui, Hiroshi; Taketomi, Shuji; Nakamura, Kensuke; Takei, Seira; Takeda, Hideki; Tanaka, Sakae; NAKAGAWA, TAKUMI
Background The purpose of this study was to evaluate the influence of image-free computer-assisted navigation system update on outcome in total knee arthroplasty. Methods Thirty-three knees were replaced using the Stryker 3.1 image-free navigation system and 49 knees were replaced using the Stryker 4.0 system. One surgeon took part in all procedures as chief surgeon or first assistant. All patients received the Stryker Scopio NRG CR total knee prosthesis. We compared the accuracy of component...
Raquel de Melo Santos Vilas Boas
Full Text Available AbstractSoft tissue complications following hip arthroplasty may occur either in cases of total hip arthroplasty or in hip resurfacing, a technique that has become popular in cases involving young patients. Both orthopedic and radiological literatures are now calling attention to these symptomatic periprosthetic soft tissue masses called inflammatory pseudotumors or aseptic lymphocytic vasculites-associated lesions. Pseudotumors are associated with pain, instability, neuropathy, and premature loosening of prosthetic components, frequently requiring early and difficult reoperation. Magnetic resonance imaging plays a relevant role in the evaluation of soft tissue changes in the painful hip after arthroplasty, ranging from early periprosthetic fluid collections to necrosis and more extensive tissue damage.
Aldinger, P.R. [Abt. Orthopaedie I, Orthopaedische Universitaetsklinik Heidelberg (Germany); Ludwig, K. [Sektion Diagnostische Radiologie, Orthopaedische Universitaetsklinik Heidelberg (Germany)
With increased life expectancy in industrialised countries, improvement of implant design and operative technique, arthroplasty has become a routine procedure. The hip and knee joints are treated by arthroplasty most frequently. Nowadays joint replacement can be performed in many other joints. Radiologic imaging is an important tool for evaluation of the operative results and for detection of early and late complications. In the following article we describe the relevance of different imaging modalities as well as their systematic application in patients with joint arthroplasty. (orig.)
Urish, Kenneth L; DeMuth, Peter W; Craft, David W; Haider, Hani; Davis, Charles M
In acute periprosthetic infection, irrigation and debridement with component retention has a high failure rate in some studies. We hypothesize that pulse lavage irrigation is ineffective at removing biofilm from total knee arthroplasty (TKA) components. Staphylococcus aureus biofilm mass and location was directly visualized on arthroplasty materials with a photon collection camera and laser scanning confocal microscopy. There was a substantial reduction in biofilm signal intensity, but the reduction was less than a ten-fold decrease. This suggests that irrigation needs to be further improved for the removal of biofilm mass below the necessary bioburden level to prevent recurrence of acute infection in total knee arthroplasty. PMID:24439797
Full Text Available Since the 1970s, the appointment of trial judges in Canada has generally involved an arms-length committee of professionals, although the structure of these committees and their role in the process has varied from province to province, as well as evolving over time. Yet these “new” structures and “new” processes did not prevent a major judicial appointment scandal in the province of Quebec in 2010, culminating in the formation of the Bastarache Committee to recommend changes. This paper summarizes the forty-year history of Canadian judicial appointment committees, identifies the major challenges that face those committees, and suggests the basic values toward which reforms to the appointment process might be directed. Depuis les années 1970, la nomination des juges de première instance au Canada a généralement mis à contribution un comité de professionnels indépendants, bien que la structure de ce comité et son rôle dans le processus de nomination aient varié d’une province à l’autre et évolué avec le temps. Ces « nouvelles » structures et « nouveaux » processus n’ont certes pas empêché l’éclatement du scandale sur la nomination des juges au Québec en 2010. Ce scandale a donné lieu à la formation de la Commission Bastarache qui avait notamment le mandat de recommander des changements. La présent document résume les quarante ans d’histoire des comités canadiens de nomination des juges, recense les principaux défis que ces comités doivent relever, et propose les valeurs fondamentales qui devraient inspirer les réformes du processus de nomination.
Suchanek, Pavel; Shaikh, Sabina L.; van Kooten, G. Cornelis
This research examines effects of various factors on participation in agricultural tree plantations for economic, environmental, social and carbon-uptake purposes. Using survey data from 2000 mail surveys of Canadian farmers, a discrete choice random utility analysis is used to determine probability of farmers' participation and the corresponding mean willingness to accept a tree-planting program. Estimation results show that the required compensation for accepting a tree-planting program is ...
The Canadian Petroleum Products Institute (CPPI) was created in 1989 as a nonprofit association of Canadian refiners and marketers of petroleum products. In 1991, the Atlantic Petroleum Association, the Quebec Petroleum Association, the Ontario Petroleum Association, the Canada West Petroleum Association, and the Petroleum Association for Conservation of the Canadian Environment (PACE) were integrated into the CPPI. The objective of the CPPI is to serve and represent the refining and marketing sectors of the petroleum industry with respect to environment, health and safety, and business issues. An industry overview is provided, as well as highlights of environmental achievements and challenges, and economics and operations for the year. Lists of CPPI publications, standing committees, and officers are also included. 9 figs
This special issue of OSCAR introduced the newly created Western Canadian Spill Services Ltd. (WCSS). The organizations known as PROSCARAC and the oil spill co-ops WCOC have been dissolved and their operations have merged into the WCSS. The history of PROSCARAC and the WCOC, the process leading to their merger, and the new organization's plans to increase the petroleum industry's spill response capabilities were described. WCSS is run by a board of directors representing the Canadian Association of Petroleum Producers, the Small Explorers and Producers Association of Canada, the Canadian Petroleum Products Association, Trans Mountain Pipe Line Company Ltd., and Interprovincial Pipe Line Inc. Organizations with similar objectives in Manitoba and Saskatchewan have been invited to join
In 1997 Peacock Inc., a supplier of pipeline, filtration, pumping, materials handling and mechanical equipment of all kinds to the Canadian oil and natural gas industries, will celebrate its 100th year of servicing Canadian industry, and 50th year in the oil patch. The company has outlets in several Canadian cities from Halifax to Vancouver. It manufactures, distributes, maintains and repairs all types of industrial equipment. It also manages the Naval Engineering Test Establishment at LaSalle, PQ, for the Department of Defence. Peacock service centres provide 24-hour service response to emergency breakdowns anywhere in Canada; its engineers and technicians are ISO 9003 qualified or better, and are experts in turnarounds and planned maintenance outages, major overhauls of critical equipment, supplying mechanical crews for emergency equipment breakdowns, and grouting of heavy machinery. By close coordination of its four divisions, and by maintaining their dedication to service, the company looks to the future with pride and confidence
Atomic Energy of Canada Limited, following an investigation of Canadian and international needs and world-market prospects for research reactors, has developed a new multipurpose concept, called MAPLE (Multipurpose Applied Physics Lattice Experimental). The MAPLE concept combines H2O- and D2O-moderated lattices within a D2O calandria tank in order to achieve the flux advantages of a basic H2O-cooled and moderated core along with the flexibility and space of a D2O-moderated core. The SUGAR (Slowpoke Uprated for General Applied Research) MAPLE version of the conept provides a range of utilization that is well suited to the needs of countries with nuclear programs at an early stage. The higher power MAPLE version furnishes high neutron flux levels and the variety of irradiation facilities that are appropriate for more advanced nuclear programs
The development of the Canadian nuclear power safety philosophy and practice is traced from its early roots at the Chalk River Nuclear Laboratory to the licensing of the current generation of power reactors. Basic to the philosophy is a recognition that the primary responsibility for achieving a high standard of safety resides with the licensee. As a consequence, regulatory requirements have emphasized numerical safety goals and objectives and minimized specific design or operating rules. The Canadian licensing process is described along with a discussion of some of the difficulties encountered. Examples of specific licensing considerations for each phase of a project are included
Lawless, Jerald F
Commissioned by the Statistical Society of Canada (SSC), Statistics in Action: A Canadian Outlook helps both general readers and users of statistics better appreciate the scope and importance of statistics. It presents the ways in which statistics is used while highlighting key contributions that Canadian statisticians are making to science, technology, business, government, and other areas. The book emphasizes the role and impact of computing in statistical modeling and analysis, including the issues involved with the huge amounts of data being generated by automated processes.The first two c
Full Text Available Abstract C1-inhibitor (C1-INH deficiency is a rare blood disorder resulting in angioedema attacks that are debilitating and may be life-threatening. Prophylaxis and therapy of events has changed since our first Canadian Consensus Conference on the diagnosis, therapy and management of HAE. We have formed the Canadian Hereditary Angioedema Network (CHAEN/Réseau Canadien d'Angioédème Héréditaire (RCAH - http://www.haecanada.com to advance care of patients with this disorder in Canada. We here present a review of management of HAE in Canada.
Full Text Available A survey of Canadian research libraries was conducted to determine the extent of funding support for open access publications in these institutions. Results indicate that there is substantial support for open access publishing, and a diversity of approaches is being used to fund open access resources. The reasons for funding support along with policy and promotional issues are explored. The broader implications of funding open access are discussed in the context of a changing scholarly publishing landscape. This paper will be especially relevant to Canadian academic libraries that are exploring options for funding open access publications.
van Raaij Jos JAM
Full Text Available Abstract Background Osteoarthritis of the hip is successfully treated by total hip arthroplasty with metal-on-polyethylene articulation. Polyethylene wear debris can however lead to osteolysis, aseptic loosening and failure of the implant. Large head metal-on-metal total hip arthroplasty may overcome polyethylene wear induced prosthetic failure, but can increase systemic cobalt and chromium ion concentrations. The objective of this study is to compare two cementless total hip arthroplasties: a conventional 28 mm metal-on-polyethylene articulation and a large head metal-on-metal articulation. We hypothesize that the latter arthroplasties show less bone density loss and higher serum metal ion concentrations. We expect equal functional scores, greater range of motion, fewer dislocations, fewer periprosthetic radiolucencies and increased prosthetic survival with the metal-on-metal articulation. Methods A randomized controlled trial will be conducted. Patients to be included suffer from non-inflammatory degenerative joint disease of the hip, are aged between 18 and 80 and are admitted for primary cementless unilateral total hip arthroplasty. Patients in the metal-on-metal group will receive a cementless titanium alloy acetabular component with a cobalt-chromium liner and a cobalt-chromium femoral head varying from 38 to 60 mm. Patients in the metal-on-polyethylene group will receive a cementless titanium alloy acetabular component with a polyethylene liner and a 28 mm cobalt-chromium femoral head. We will assess acetabular bone mineral density by dual energy x-ray absorptiometry (DEXA, serum ion concentrations of cobalt, chromium and titanium, self reported functional status (Oxford hip score, physician reported functional status and range of motion (Harris hip score, number of dislocations and prosthetic survival. Measurements will take place preoperatively, perioperatively, and postoperatively (6 weeks, 1 year, 5 years and 10 years. Discussion
Mears, Simon C; Blanding, Renee; Belkoff, Stephen M
Many resources are expended to ensure a sterile operating room environment. Efforts are made to prevent exposure of patients to personnel and to achieve positive room pressure to keep out airborne contaminants. Foot traffic into and out of the operating room during surgery can undermine these efforts. The authors investigated the number and duration of operating room door openings during hip and knee arthroplasty procedures and the effect of the door openings on room pressure. They tested the hypothesis that door openings defeat positive pressure, permitting air flow into the room. Room pressure and door status were monitored electronically during 191 hip and knee arthroplasty procedures. Operating room staff were unaware that data were being collected. The authors evaluated the data with regression analysis to determine whether the number and duration of door openings had an effect on room pressure. Significance was set at Pflow to reverse into the operating room. Total time with the door open significantly affected the minimum pressure recorded in the room (Ptraffic must be evaluated to identify ways to reduce this traffic and the associated risks. PMID:26558679
Jackson, Keith L; Hire, Justin M; Jacobs, Jeremy M; Key, Charles C; DeVine, John G
To date, no reports have presented radiculopathy secondary to heterotopic ossification following lumbar total disc arthroplasty. The authors present a previously unpublished complication of lumbar total disk arthroplasty (TDA) secondary to heterotopic ossification (HO) in the spinal canal, and they propose a modification to the McAfee classification of HO. The patient had undergone an L5/S1 lumbar TDA two years prior due to discogenic back pain. His preoperative back pain was significantly relieved, but he developed new, atraumatic onset radiculopathy. Radiographs and a computed tomography myelogram revealed an implant malposition posteriorly with heterotopic bone formation in the canal, causing an impingement of the traversing nerve root. Revision surgery was performed with implant extraction, L5/S1 anterior lumbar interbody fusion, supplemental posterior decompression, and pedicle screw fixation. The patient tolerated the procedure well, with complete resolution of the radicular leg pain. At a two-year follow up, the patient had a solid fusion without subsidence or recurrence of heterotopic bone. This case represents a novel pattern of heterotopic ossification, and it describes a previously unreported cause for implant failure in lumbar disc replacement surgery-reinforcing the importance of proper intraoperative component positioning. We propose a modification to the existing McAfee classification of HO after TDA with the addition of Class V and VI HO. PMID:26097664
Full Text Available Peri-operative blood management is one of a number of components important for successful patient care in total joint arthroplasty and surgeons should be proactive in its application. The aims of blood conservation are to reduce the risks of blood transfusion whilst at the same time maximizing haemaglobin in the post-operative period, thereby leading to a positive effect on early and long term outcomes and costs. An individualized strategy based on patient specific risk factors, anticipated blood loss and co-morbidities is useful in achieving this aim. Multiple blood conservation strategies are available in the pre-operative, intra-operative and post-operative periods and can be utilised either individually or in combination. Recent literature has highlighted the importance of identifying and correcting pre-operative anaemia, salvaging peri-operative red cells and the use of tranexamic acid in reducing blood loss. Given total hip and knee arthroplasty is an elective procedure, a zero allogenic blood transfusion rate should be the aim and an achievable goal.
Flecher, X; Ollivier, M; Argenson, J N
Restoration of normal hip biomechanics is a key goal of total hip arthroplasty (THA) and favorably affects functional recovery. Furthermore, a major concern for both the surgeon and the patient is preservation or restoration of limb length equality, which must be achieved without compromising the stability of the prosthesis. Here, definitions are given for anatomic and functional limb length discrepancies and for femoral and hip offset, determined taking anteversion into account. Data on the influence of operated-limb length and offset on patient satisfaction, hip function, and prosthesis survival after THA are reviewed. Errors may adversely impact function, quality of life, and prosthetic survival and may also generate conflicts between the surgeon and patient. Surgeons rely on two- or three-dimensional preoperative templating and on intraoperative landmarks to manage offset and length. Accuracy can be improved by using computer-assisted planning or surgery and the more recently introduced EOS imaging system. The prosthetic's armamentarium now includes varus-aligned and lateralized implants, as well as implants with modular or custom-made necks, which allow restoration of the normal hip geometry, most notably in patients with coxa vara or coxa valga. Femoral anteversion must also receive careful attention. The most common errors are limb lengthening and a decrease in hip offset. When symptoms are caused by an error in length and/or offset, revision arthroplasty may deserve consideration. PMID:26797005
Hsu, Jason E; Bumgarner, Roger E; Matsen, Frederick A
➤ Propionibacterium is a slow-growing gram-positive rod that is part of the normal skin microbiome but can be found on culture of specimens from a large number of patients having revision shoulder arthroplasty performed for pain, stiffness, and component loosening.➤ Propionibacterium infections do not present with obvious signs of infection, such as swelling, erythema, drainage, or tenderness, but rather are of the so-called stealth type, presenting with unexplained pain, stiffness, or component loosening months to years after the index arthroplasty.➤ Not all propionibacteria are the same: certain subtypes of Propionibacterium are enriched with virulence factors that may enhance deep infection.➤ Because propionibacteria typically reside in the pilosebaceous glands of the oily skin of the chest and back, standard surgical skin preparation solutions and even perioperative intravenous antibiotics are often inadequate at sterilizing the incision site; therefore, other prophylactic measures such as meticulous implant handling to avoid contact with dermal structures need to be considered.➤ Recovery of Propionibacterium from the surgical wounds requires that multiple specimens for culture be taken from different areas of the shoulder to reduce sampling error, and cultures should be held for two weeks on multiple culture media.➤ Future research efforts can be focused on reducing the risk of implant infection and point-of-care methods for identifying Propionibacterium infections. PMID:27053589
David C. Dibbon
Full Text Available Since its inception in 1996, the GrassRoots Program has been instrumental in facilitating the integration of information and communication technologies (ICT into the classrooms of Canadian schools. By linking the GrassRoots Program to the school curriculum and providing incentives for teachers to engage students in the process of co-creating electronic curriculum resources for the Internet, it has been influential in transforming classrooms into authentic centres of learning. There is overwhelming evidence supporting the concept that the GrassRoots Program is a powerful connector between ICT and new teaching theories. This paper provides an overview of innovation, a background to some of the challenges associated with large-scale innovation in the Canadian K-12 school system and the findings from a collection of 16 case studies conducted in innovative schools in Canada. An analysis of the data contained in the case studies indicates that the GrassRoots Program is having a positive impact on the diffusion of ICT in the classrooms of schools that are members of the Network of Innovation (NIS, and it is making a significant contribution to the development of a culture of innovation. The existence of GrassRoots projects has also increased the capacity for innovation by empowering and enabling the schools and teachers to work on multiple innovations simultaneously. Also, there is sufficient evidence to show that GrassRoots has had a major impact on: teacher professional learning; teacher technology skill development; student technology skill development, student employability skill development; access to teaching resources; leadership opportunities; and school growth and development.
This paper provides an up-to-date career and demographic profile of Canadian research university librarians by comparing newly derived data from the 8Rs Study: The "Future of Human Resources in Canadian Libraries", with corresponding information from the author's 2006 survey: "The Scholarship of Canadian Research University Librarians", and other…
The transport of contaminants to the Canadian Arctic by air and in water and their concentration through the marine food web has lead to enhanced levels of contaminants in several foods of Canadian northern inhabitants. Artificial radionuclides in the marine water can be used to determine water circulation and to trace contaminant transport through the Canadian Archipelago
Transnational education is a huge growth industry and a potential source of considerable income for Canadian educational institutions. Canadian educational establishments seem to be missing out on this, and this seems short sighted. Canada has a very good reputation globally; this could be utilized when selling Canadian educational institutions in…
Post, Sylvia; Staunton, Ted, Ed.
One of a series of teaching units designed to introduce secondary school students to the Canadian economy, this handbook contains activities on the economic status and roles of Canadian women. The first of 4 sections presents a profile of male and female occupations. Section 2 contains statistics on females in the Canadian labor force. Section 3,…
The Canadian QA standards - the CSA Z299 series for manufacture, which first appeared in 1975, and the CSA N286 series for all other phases of plant life which appeared in 1979, have been based on experience with the CANDU reactor program. The CSA Technical Committee responsible for issue and for updating the two series have a direct liaison with the IAEA Technical Review Committee for Quality Assurance. Ontario Hydro, which has a substantial commitment to nuclear power using CANDU reactors, has played a large part in the Canadian QA standards program. Atomic Energy of Canada Limited has also taken a major part in the development of CSA QA standards. As a main contractor the Company has supplied CANDU plants in Canada and to Argentina, South Korea and Romania. Because of the compatibility of the Canadian QA standards used, the Embalse plant in Argentina and the Wolsung 1 plant in Korea, are essentially in compliance with NUSS QA standards. The plant under construction at Cernavoda in Romania similarly follows Canadian QA standards