Wülker N, Thren K, Korell M, Kirsch L
Orthopädische Klinik der Medizinischen Hochschule Hannover im Annastift e. V.
Z Orthop Ihre Grenzgeb. 1996 Jan-Feb;134(1):67-72. doi: 10.1055/s-2008-1037419.
Translation of the glenohumeral joint was measured with a dynamic shoulder model, during elevation of the arm in eight cadaveric specimens. Controlled hydrodynamic actuator forces were applied to the deltoid muscle and the rotator cuff through wire cables. Using a constant force ratio, the glenohumeral joint was elevated to 90 degrees. The position of the arm in all spatial orientations was measured with an ultrasonic device. Reproducibility of glenohumeral joint motion was demonstrated on the basis of five cycles of glenohumeral joint elevation. The rotational center of the humeral head was used as the reference point for translation. Translation during elevation of the glenohumeral joint between 20 degrees and 90 degrees averaged 9.0 mm +/- 5.2 mm superiorly and 4.4 mm +/- 1.3 mm anteriorly. In vivo, this may be diminished by coordinated activity of the rotator cuff. The presence of significant glenohumeral joint translation underlines the importance of active, muscular guidance at the shoulder. Physiologic translation of total shoulder arthroplasty, in shoulder instability and in the impingement syndrome.
在八个尸体标本中，通过动态肩部模型在手臂抬高过程中测量盂肱关节的平移。通过钢丝绳向三角肌和肩袖施加可控的流体动力致动器力。使用恒定的力比，将盂肱关节抬高到90度。用超声设备测量手臂在所有空间方向上的位置。基于盂肱关节抬高的五个周期证明了盂肱关节运动的可重复性。肱骨头的旋转中心用作平移的参考点。盂肱关节在20度至90度抬高过程中的平移平均向上为9.0毫米±5.2毫米，向前为4.4毫米±1.3毫米。在体内，这可能会因肩袖的协调活动而减弱。盂肱关节明显平移的存在强调了肩部主动肌肉引导的重要性。全肩关节置换术、肩部不稳定和撞击综合征中的生理平移。
