Lafortune M A, Cavanagh P R, Sommer H J, Kalenak A
School of Human Biology, University of Guelph, Ontario, Canada.
J Biomech. 1992 Apr;25(4):347-57. doi: 10.1016/0021-9290(92)90254-x.
Three-dimensional kinematics of the tibiofemoral joint were studied during normal walking. Target markers were fixed to tibia and femur by means of intra-cortical traction pins. Radiographs of the lower limb were obtained to compute the position of the target markers relative to internal anatomical structures. High-speed cine cameras were used to measure three-dimensional coordinates of the target markers in five subjects walking at a speed of 1.2 m s-1. Relative motion between tibia and femur was resolved according to a joint coordinate system (JCS). The measurements have identified that substantial angular and linear motions occur about and along each of the JCS axes during walking. The results do not, however, support the traditional view that the so-called 'screw home' mechanism of the knee joint operates during gait.
在正常行走过程中对胫股关节的三维运动学进行了研究。通过皮质内牵引针将目标标记物固定在胫骨和股骨上。获取下肢的X线片以计算目标标记物相对于内部解剖结构的位置。使用高速电影摄像机测量五名以1.2米/秒的速度行走的受试者中目标标记物的三维坐标。根据关节坐标系（JCS）解析胫骨和股骨之间的相对运动。测量结果表明，在行走过程中，围绕每个JCS轴并沿其发生了大量的角向和线性运动。然而，这些结果并不支持传统观点，即膝关节所谓的“锁定”机制在步态期间起作用。
