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Popular Articles

Finding Key To Cancer Drug Gleevec's Limitations
University of Michigan researchers have developed an animal model that provides strong evidence why imatinib, marketed as Gleevec, helps patients with chronic myeloid leukemia survive longer, but does not keep the disease from returning if treatment ends.
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Free AMA Webinar To Help Physicians Access Stimulus Funds For HIT
As part of its continuing efforts to help physicians learn about and adopt new technology, the American Medical Association (AMA) announced a new, free webinar series that will help physicians understand the health information technology (HIT) provisions laid out in the recently passed economic stimulus bill. The three-part series will lay out what these provisions mean for physicians and how they can take advantage of the $19 billion in funds allocated for the purchase and use of HIT. The first webinar is Thursday, May 21.
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Workshop Focuses On Bovine TB
In 2008, the U.S. Department of Agriculture spent $31 million to depopulate herds of cattle affected by bovine tuberculosis (TB), even though the risk of the disease has been significantly reduced in the U.S. over the past several decades. Worldwide, especially in developing countries, the disease persists, which could threaten the U.S. cattle industry in terms of international trade.
Public Health

Navigation In Hip Resurfacing

Hip resurfacing can be a good alternative to total hip replacement (THR) in young adults because it conserves bone and it has acceptable short- to medium-term results. However, there have been concerns about fractures of the femoral neck with this procedure, partly due to notching and varus alignment during implantation. Therefore, in this study the author"s used imageless computer navigation as a method to aid in the placement of the femoral component in hip resurfacings. Pre-operative templating was used to determine the planned stem-shaft angle against the native neck-shaft angle. Post-operatively, this template was then assessed using digital anteroposterior unilateral radiographs of the hip. There were no instances of notching of the femoral neck or varus alignment of the implant. The stem-shaft angle differed from that planned by 2.8° and while "a learning curve was observed in the time taken for navigation" this was not true for accurate placement of the implant." The author"s conclude that "computer navigation for placement of the initial guidewire in hip resurfacing has been shown to be more accurate than the use of conventional mechanical jigs" and that it "shows promise in optimising the preparation of the femoral head" and in helping to reduce factors that can cause the femoral neck to fracture and the implant to fail. Read the full text article. The Journal of Bone and Joint Surgery


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