Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10434520 | Journal of Biomechanics | 2005 | 8 Pages |
Abstract
An in vivo kinematic analysis that determined three dimensional motions of the femorotibial joint was performed during a deep knee bend using fluoroscopy for 20 subjects having a TKA designed for deep flexion. The average weight-bearing range-of-motion was 125°. On average, TKA subjects experienced 4.9° of normal axial rotation and all subjects experienced at least â4.4 mm of posterior femoral rollback. It is assumed that femorotibial kinematics can play a major role in patellofemoral kinematics. In this study, subjects implanted with a high-flexion TKA design experienced kinematic patterns that were similar to the normal knee. It can be hypothesized that forces acting on the patella were not substantially increased for TKA subjects compared with the normal subjects.
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Authors
Jean-Noël A. Argenson, Giles R. Scuderi, Richard D. Komistek, W.Norman Scott, Michael A. Kelly, Jean-Manuel Aubaniac,