Hoschek J, Weber U, Ladstätter P, Schelske H J
Arch Orthop Trauma Surg (1978). 1984;103(5):342-7. doi: 10.1007/BF00432423.
Certain optical methods (photogrammetry) achieve great precision in analysis of body motion. However, this study clearly shows that the tracing of body surface movement is unsuitable for analysis of actual joint motion, at least in the knee joint, because of the soft tissue shifting which occurs. It is also shown that comparatively simple mathematical-kinematic techniques can be used to check the degree of error of methods of measurement in orthopedics. It is to be assumed that no currently available knee joint prostheses function in a kinematically perfect manner. If the movement of knee joint prostheses is to be optimized and implantation errors affecting kinematics avoided, it seems indispensable, at the current level of technology, to employ X-ray stereophotogrammetry to describe natural knee joint motion.
某些光学方法（摄影测量法）在人体运动分析中能达到很高的精度。然而，本研究清楚地表明，体表运动的追踪不适用于实际关节运动的分析，至少在膝关节中是这样，因为会发生软组织移位。研究还表明，相对简单的数学运动学技术可用于检查骨科测量方法的误差程度。可以认为，目前可用的膝关节假体在运动学上都不是完美发挥功能的。如果要优化膝关节假体的运动并避免影响运动学的植入误差，在当前技术水平下，采用X射线立体摄影测量法来描述自然膝关节运动似乎是必不可少的。
