Gallino M, Battiston B, Annaratone G, Terragnoli F
Divisione di Ortopedia, Presidio Sanitario Gradenigo, Torino, Italy.
Arthroscopy. 1995 Oct;11(5):564-7. doi: 10.1016/0749-8063(95)90133-7.
An anatomic study of the coracoacromial ligament was conducted. The data collected from 20 anatomical preparations and the arthroscopic findings in 40 cases were compared. The shape and the tension of the ligament were evaluated, as well as the thickness. Anatomic tradition describes the ligament as a fibrous triangular lamina inserted with its apex on the acromial tip and its base on the lateral edge of the coracoid. It simply closes the coracoacromial arch and has no mechanical role. However, our observations suggest that the ligament has a trapezoidal shape and is situated below the acromion with a wide reflex portion. Its thickness varies from 2 to 5.6 mm. Given that structure, the ligament appears like a robust suspension structure of the coracoid, which contrasts the action of the muscles that connect to it. From these observations, a pathogenic hypothesis of the subacromial impingement proposes itself.
对喙肩韧带进行了一项解剖学研究。将从20个解剖标本收集的数据与40例关节镜检查结果进行了比较。评估了韧带的形状、张力以及厚度。解剖学传统将该韧带描述为一个纤维性三角形薄片，其尖端插入肩峰尖端，基部位于喙突外侧边缘。它只是封闭了喙肩弓，没有机械作用。然而，我们的观察表明，该韧带呈梯形，位于肩峰下方，有一个宽阔的反折部分。其厚度在2至5.6毫米之间变化。鉴于这种结构，该韧带看起来像是喙突的一个坚固的悬吊结构，这与连接到它的肌肉的作用形成对比。基于这些观察结果，提出了肩峰下撞击症的致病假说。
