Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10434572 | Journal of Biomechanics | 2005 | 6 Pages |
Abstract
Abnormal, excessive stresses acting on articular joint surfaces are speculated to be one of the causes for joint degeneration. However, articular surface stresses have not been studied systematically, since it is technically difficult to measure in vivo contact areas and pressures in dynamic situations. Therefore, we implemented a numerical model of articular surface contact using accurate surface geometries. The model was developed for the cat patellofemoral joint. We demonstrated that small misalignments of the patella relative to the femur change the joint contact mechanics substantially for a given external load. These results suggest that misalignment might be studied as one of the factors causing articular cartilage disorder and joint degeneration.
Keywords
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Physical Sciences and Engineering
Engineering
Biomedical Engineering
Authors
Sang-Kuy Han, Salvatore Federico, Marcelo Epstein, Walter Herzog,