Lundberg A, Svensson O K, Németh G, Selvik G
Department of Orthopaedic Surgery, Karolinska Hospital, Stockholm, Sweden.
J Bone Joint Surg Br. 1989 Jan;71(1):94-9. doi: 10.1302/0301-620X.71B1.2915016.
The axis of the talo-crural joint was analysed by roentgen stereophotogrammetry in eight healthy volunteers. Examinations were performed at 10 degrees increments of flexion and pronation/supination of the foot as well as medial and lateral rotation of the leg. Results indicate that the talo-crural joint axis changes continuously throughout the range of movement. In dorsiflexion it tended to be oblique downward and laterally. In rotation of the leg, the axis took varying inclinations between horizontal and vertical. All axes in each subject lay close to the midpoint of a line between the tips of the malleoli. Our study indicates that the talo-crural joint axis may alter considerably during the arc of motion and differ significantly between individuals. This prompts caution in the use of hinge axes in orthoses and prostheses for the ankle.
通过X线立体摄影测量法对8名健康志愿者的距小腿关节轴进行了分析。在足部屈曲、内旋/外旋以及小腿内旋和外旋以10度递增的情况下进行检查。结果表明，距小腿关节轴在整个运动范围内持续变化。在背屈时，它倾向于向下并向外侧倾斜。在小腿旋转时，轴在水平和垂直之间呈现不同的倾斜度。每个受试者的所有轴线都靠近内、外踝尖之间连线的中点。我们的研究表明，距小腿关节轴在运动弧度期间可能会发生相当大的变化，并且个体之间存在显著差异。这提示在为踝关节制作矫形器和假肢时使用铰链轴要谨慎。
