Phillips R D, Lidtke R H
College of Podiatric Medicine and Surgery, University of Osteopathic Medicine and Health Sciences, Des Moines, IA 50312.
J Am Podiatr Med Assoc. 1992 Jan;82(1):1-20. doi: 10.7547/87507315-82-1-1.
The authors present a methodology to measure the frontal plane angular and linear displacement and the transverse plane angular displacement of subtalar joint movement. This method is combined with a modification of the Kirby method for determining the transverse plane projection of the subtalar joint axis onto the plantar foot. A mathematical model is then used to construct the subtalar joint axis into a three-dimensional linear equation. Data are obtained from an in vivo series of 62 feet that indicates that within acceptable clinical errors of measurement the subtalar joint is a ginglymus type of joint that moves around a single fixed axis. Results also indicate that the subtalar joint axis is more superior and lateral to the neutral foot than any previous studies on cadaver feet have shown. Finally, the authors show that once the subtalar joint axis can be accurately located, the torque on the joint axis produced by ground reactive forces and muscular forces can be computed.
作者提出了一种测量距下关节运动的额状面角位移和线性位移以及横断面角位移的方法。该方法结合了对Kirby方法的改进，用于确定距下关节轴在足底的横断面投影。然后使用数学模型将距下关节轴构建为三维线性方程。数据来自62只脚的体内系列研究，结果表明，在可接受的临床测量误差范围内，距下关节是一种围绕单一固定轴运动的屈戌关节类型。结果还表明，距下关节轴比以往任何关于尸体脚的研究显示的更位于中立足的上方和外侧。最后，作者表明，一旦能够准确确定距下关节轴，就可以计算由地面反作用力和肌肉力在关节轴上产生的扭矩。
