Bektas Umut, Ay Sadan, Yilmaz Cengiz, Tekdemir Ibrahim, Elhan Alaattin
Department of Orthopedics, Cag Hospital, Turkey.
J Shoulder Elbow Surg. 2003 Sep-Oct;12(5):491-2. doi: 10.1016/s1058-2746(03)00065-x.
The spinoglenoid ligament has been implicated in compression of the suprascapular nerve in cases with isolated atrophy of the infraspinatus muscle. We dissected 32 shoulders of 16 embalmed cadavers. We could detect a spinoglenoid ligament in only 5 shoulders, and it was thin, loose, and weak. Instead of the spinoglenoid ligament, we observed a septum formed by the thickening of the fascial cover of the distal third of the supraspinatus and infraspinatus muscles. It originated from the spinoglenoid notch and extended into the posterior capsule. We named this structure the spinoglenoid septum. The suprascapular nerve passed between the bony margin of the spinoglenoid notch and the medial concave margin of the spinoglenoid septum. This septum may be a cause of dynamic compression of the suprascapular nerve.
在冈下肌孤立性萎缩的病例中，肩胛上切迹韧带被认为与肩胛上神经受压有关。我们解剖了16具防腐尸体的32个肩部。我们仅在5个肩部中检测到肩胛上切迹韧带，且其薄、松弛且薄弱。我们观察到，由冈上肌和冈下肌远侧三分之一筋膜覆盖增厚形成的一个间隔，取代了肩胛上切迹韧带。它起自肩胛上切迹，延伸至后关节囊。我们将此结构命名为肩胛上切迹间隔。肩胛上神经在肩胛上切迹的骨缘与肩胛上切迹间隔的内侧凹缘之间通过。这个间隔可能是肩胛上神经动态受压的一个原因。
