Lu T W, O'Connor J J
Oxford Orthopaedic Engineering Centre, University of Oxford, UK.
J Anat. 1996 Dec;189 ( Pt 3)(Pt 3):575-85.
Lines of action and moment arms in the sagittal plane of the major tension-bearing structures at the knee joint were calculated using an anatomy-based mathematical model and compared with experimental measurements reported by Herzog & Read (1993). The mobility of the model tibiofemoral joint was controlled by a sagittal plane 4-bar linkage consisting of the femur, tibia and the 2 cruciate ligaments while the knee extensor mechanism was characterised by a patellofemoral joint model. Model parameters were obtained from previous cadaveric and MRI studies. The theoretical results compare well with the published experimental measurements which suggests that, with relatively simple measurements, the model was able to reproduce major features of the natural knee joint and provide necessary information for further mechanical analysis.
利用基于解剖学的数学模型计算膝关节主要承重结构矢状面内的作用力线和力臂，并与赫佐格和里德（1993年）报告的实验测量结果进行比较。模型胫股关节的活动度由一个矢状面四连杆机构控制，该机构由股骨、胫骨和两条交叉韧带组成，而膝关节伸肌机制则由髌股关节模型表征。模型参数取自先前的尸体研究和磁共振成像研究。理论结果与已发表的实验测量结果比较吻合，这表明通过相对简单的测量，该模型能够重现自然膝关节的主要特征，并为进一步的力学分析提供必要信息。
