Haza T
Department of Orthopaedic Surgery, Nagasaki University School of Medicine, Japan.
Nihon Seikeigeka Gakkai Zasshi. 1988 Dec;62(12):1105-19.
The movement of the shoulder complex was once aptly described by Codman as the "scapulohumeral rhythm". To demonstrate this rhythm, 20 normal men and four patients with rotator cuff rupture were asked to elevate their arms smoothly in approximately three seconds and five seconds in front of a fluoroscope with or without load. The X-ray was irradiated perpendicularly in the scapular plane. The movements were calculated using a computer. In the normal men, the ratio of the scapular movements to humeral movements was not constant during scapular abduction. The movements of the instant center of the humerus occurred in a small area during abduction, and the result suggested that the movement of the glenohumeral joint was almost rotational. The movements of the instant center of the scapula occurred in a relatively large area during abduction. The movements of the shoulder complex with cuff rupture were quite different from those of normal men.
肩部复合体的运动曾被科德曼恰当地描述为“肩肱节律”。为了演示这种节律，20名正常男性和4名肩袖破裂患者被要求在荧光透视仪前，无论有无负荷，分别在约三秒和五秒内平稳地抬高他们的手臂。X射线在肩胛平面垂直照射。这些运动通过计算机进行计算。在正常男性中，肩胛外展期间肩胛运动与肱骨运动的比例并不恒定。肱骨瞬时中心的运动在肩外展期间发生在一个小区域内，结果表明盂肱关节的运动几乎是旋转运动。肩胛瞬时中心的运动在肩外展期间发生在一个相对较大的区域内。肩袖破裂患者的肩部复合体运动与正常男性的运动有很大不同。
