Jerosch J, Filler T, Mertens T
Klinik für Orthopädie und Orthopädische Chirurgie, Johanna-Etienne-Krankenhaus, Neuss.
Z Orthop Unfall. 2012 Apr;150(2):142-8. doi: 10.1055/s-0031-1280050. Epub 2011 Oct 18.
In over-head motion athletes a dysfunction of the suprascapular nerve has been described. In the literature a relation between the spinoglenoid ligament and the dysfunction of the suprascapular nerve is mentioned. An appreciable variability of this ligament is described. The purpose of the present study was the anatomic documentation of the spinoglenoid ligament and its relation to the suprascapular nerve.
In 36 shoulder specimen the suprascapular nerve, the spinoglenoid and bony parameter of the scapula were documented. The statistic evaluation was performed with SPSS12.0.
In all but one specimen a spinoglenoid ligament was present. In 20 cases (56 %) the infraspinatus muscle inserted at the spinoglenoid ligament. In five cases (14 %) the spinoglenoid ligament reached the glenohumeral joint capsule. In two cases the suprascapular nerve was completely fixed with the ligament, in four cases the perineural soft tissue had a close connection to the ligament. In four cases a branch of the nerve passed through the ligament. All together in 28 % of the specimen there were mechanical conflicts. In one case a ganglion compressed the nerve.
Our anatomic study showed in a significant number of cases a possible entrapment of different origins. These findings have implications both for diagnostics and treatment.
在过顶运动的运动员中，肩胛上神经功能障碍已有报道。文献中提到了肩胛下肌盂肱韧带与肩胛上神经功能障碍之间的关系。描述了该韧带存在明显的变异性。本研究的目的是对肩胛下肌盂肱韧带及其与肩胛上神经的关系进行解剖学记录。
对36个肩部标本的肩胛上神经、肩胛下肌盂肱韧带和肩胛骨的骨性参数进行记录。使用SPSS12.0进行统计学评估。
除1个标本外，其余所有标本均存在肩胛下肌盂肱韧带。20例（56%）冈下肌附着于肩胛下肌盂肱韧带。5例（14%）肩胛下肌盂肱韧带延伸至盂肱关节囊。2例肩胛上神经与韧带完全固定，4例神经周围软组织与韧带紧密相连。4例有神经分支穿过韧带。总共28%的标本存在机械性冲突。1例有腱鞘囊肿压迫神经。
我们的解剖学研究表明，在相当数量的病例中存在不同原因导致的卡压可能。这些发现对诊断和治疗均有意义。
