The location of the center of the femoral head and the mechanical axis of femur were obtained by using optical tracking localizer in computer-assisted total knee replacement(TKR).

• 利用光学定位追踪仪确定全膝置换中患者的股骨头中心从而确定其股骨力线,在力线的定位精度分析中,首次采用股骨的三维重建模型进行精度校验。