Jost B, Koch P P, Gerber C
Department of Orthopedics, University of Zürich, Switzerland.
J Shoulder Elbow Surg. 2000 Jul-Aug;9(4):336-41. doi: 10.1067/mse.2000.106746.
The anatomy of the region between the supraspinatus and subscapularis tendons, called the rotator interval, was studied in 22 shoulders of 12 cadavers. Its function was then examined by sequential cutting of tendon or rotator interval structures. The rotator interval was found to be composed of parts of the supraspinatus, subscapularis, coracohumeral ligament, superior glenohumeral ligament, and glenohumeral joint capsule. A medial part composed of 2 layers was defined and distinguished from a more lateral part composed of 4 layers. The most superior 3 layers of the lateral part formed a fibrous plate. The medial part was found to primarily limit inferior translation and, to a lesser extent, external rotation. The fibrous plate of the lateral part of the rotator interval mainly limited external rotation of the adducted arm. The coracohumeral ligament played a key role in external rotation as well as in inferior translation.
对12具尸体的22个肩部进行了研究，该区域位于冈上肌腱和肩胛下肌腱之间，称为旋转间隙。然后通过依次切断肌腱或旋转间隙结构来检查其功能。发现旋转间隙由冈上肌、肩胛下肌、喙肱韧带、肱骨头关节上韧带和肱骨头关节囊的部分组成。定义了一个由两层组成的内侧部分，并将其与由四层组成的更外侧部分区分开来。外侧部分最上面的三层形成一个纤维板。发现内侧部分主要限制向下平移，在较小程度上限制外旋。旋转间隙外侧部分的纤维板主要限制内收臂的外旋。喙肱韧带在肩外旋以及向下平移中起关键作用。
