Van Roy P, Clarys J P
Vrije Universiteit Brussel (Belgium).
Ergonomics. 2000 Oct;43(10):1726-37. doi: 10.1080/001401300750004131.
A new method to quantify intra-articular relationships between articular surfaces of the glenohumeral joint during discrete poses representing the late preparatory phase of throwing is presented. This method is based on 3D bone reconstructions from medical imaging data processed into finite helical axis parameters. With the shoulder moving in the anatomical planes from 90 degrees abduction and 90 degrees external rotation into the apprehension test pose, the centre of the humeral head posteriorly translated on the glenoid and rotated about a finite helical axis, which was positioned at the joint contact. The data are contrasted with Kaltenborn's convex-concave rule explaining intra-articular kinematics of the glenohumeral joint as a ball-and-socket joint. The data show at all conditions that the glenohumeral joint does not act as a ball-and-socket joint. Consequently, the mobilization techniques used in manual therapy, which are based on this convex concave rule, should be adapted.
本文提出了一种新方法，用于量化在代表投掷准备后期阶段的离散姿势下，肩肱关节关节面之间的关节内关系。该方法基于从医学成像数据处理为有限螺旋轴参数的三维骨骼重建。随着肩部在解剖平面内从外展90度和外旋90度移动到恐惧试验姿势，肱骨头中心在关节盂上向后平移并围绕位于关节接触处的有限螺旋轴旋转。这些数据与卡尔滕伯恩的凹凸规则形成对比，该规则将肩肱关节的关节内运动学解释为球窝关节。数据表明，在所有条件下，肩肱关节都不是球窝关节。因此，基于该凹凸规则的手动治疗中使用的松动技术应进行调整。
