Van Eeghem W
Morphol Med. 1981 Oct;1(2):113-6.
The description of knee joint cinematics is based on the exact analysis of condylar contours. In this paper, a function of second degree (elliptical equation) is proposed as an acceptable approximation to the solution of the problem. The contours of the femoral condyles can be looked at as composed of two different elliptical arches. These arches can be fitted with a high degree of accurateness. This method describes the condylar contour at least with the same approximation as the much more complicated calculation of STANISLAUS (1977) does. Furthermore the evolute of this curve does not show the extreme discontinuities of the evolute, determined by STANISLAUS.
膝关节运动学的描述基于髁轮廓的精确分析。本文提出了一个二次函数（椭圆方程）作为该问题解的可接受近似。股骨髁的轮廓可视为由两个不同的椭圆弧组成。这些弧可以高度精确地拟合。该方法描述髁轮廓的近似程度至少与STANISLAUS（1977年）的更为复杂的计算相同。此外，这条曲线的渐屈线没有显示出由STANISLAUS确定的渐屈线的极端不连续性。
