Methods Normal ankle in vivo was used as specimen.CT scan was used to obtain configuration, and by applying AutoCAD software, three-dimensional coordinate of the ankle was obtained.

• 方法采用活体踝关节为标本,应用CT扫描技术及图形数字化方法获取踝关节的三维坐标,输入有限元分析软件,并通过确定材料特性参数和网格化,建立踝关节的三维有限元模型。