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目的：探讨定量描述股骨远端关节面几何形态的方法，为进一步开发股骨远端关节软骨表面固定器及软骨修复提供关节面形态数据支持。方法选取2010年1月至2014年6月在我院行膝关节核磁共振扫描检查并且报告无异常的MRI图像130例，采用Mimics等软件对MRI图像进行处理，分别在矢状位和冠状位图像上测量出股骨内外侧髁远端及后髁关节面的半径和弧度，根据这些几何参数来确定股骨远端关节面近似的几何形态。结果在矢状位及冠状位图像上，内、外侧髁关节面均可用若干个半径不等的圆弧拟合，股骨内、外侧滑车关节面可用两个半径不等的球体拟合。结论通过测量若干个简单的几何参数可以定量描述复杂的股骨远端关节面三维几何形态，获得的数据可能用于股骨远端关节软骨表面固定器的设计及软骨修复。“,”Objective To investigate a quantitative method to describe the morphometry of distal femur articular surface based on magnetic resonance imaging (MRI) and to provide morphometric data support for design of articular surface fixation and articular cartilage repairing of distal femur. Methods 130 knees in healthy Chinese were included for MRI scanning from January 2010 to June 2014. Several reconstruction software were used to take curve or sphere fitting and measurements of distal femur articular surfaces including condyles and trochlea. Results The articular surfaces of the medial and lateral femoral condyles can be fitted by using several circular arcs respectively both in sagittal and coronal planes, a close-fit sphere was generated on the surface of the medial and lateral trochlear articular surfaces respectively. Conclusion We quantitatively describe the irregular profiles of the three portions forming the distal femur by using simple geometric parameters. the data are expected to provide morphometric support for design of articular surface fixation and articular cartilage repairing of distal femur.