F-0922 膝関節シミュレータによる人工膝関節の摩耗評価(G02-1 人工関節・インプラント)(G02 バイオエンジニアリング部門一般講演)

概要

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The two-channel knee joint simulator was developed to evaluate the wear behavior of total knee prostheses, and effects of the femoral component material on the wear behavior of the polyethylene tibial insert were examined. The knee joint simulator used in this study has three servomotors and two hydraulic actuators to reproduce the walking conditions of the knee joint. In this study, the typical flexion-extension angle and tibial axis load of an adult American male were used. The two dimensional contact analysis was performed by using FEM software to decide the anterior-posterior movement suitable to the surface geometry of the knee joint specimen and to prevent the artificial contact condition. The actual contact condition between the femoral and the tibial component was examined experimentally by using the tactile sensor and results were compared with the analytical prediction. The wear behavior of the polyethylene insert was estimated from the weight change, however, significant difference could not be identified between the Co-Cr femoral component and the alumina femoral component.
一般社団法人日本機械学会の論文
2001-08-22