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目的 探讨小斜角肌神经面的形态特点及其临床意义。方法 对 64侧成人尸体的小斜角肌特别是小斜角肌神经面的形态进行了大体观察。结果 小斜角肌的出现率为 84.4%。其神经面 (小斜角肌和臂丛下干接触的界面 )可以分为 6种类型 :Ⅰ型即全部为腱性者最多占 37% ;Ⅱ型其中央为腱性 ,两端为肌性 ;Ⅲ型的下 1/ 2为腱性 ,上 1/ 2为肌性 ;Ⅳ型的内侧 1/ 2为腱性 ,外侧 1/ 2为肌性 ;Ⅴ型的外侧为腱性 ,内侧为肌性 ;Ⅵ型全部为肌性。结论 腱性或部分腱性的小斜角肌神经面是臂丛神经受压的因素之一 ;神经面不同形态的腱性结构 ,在手术视野内常易被误认为是异常的束带
Objective To investigate the morphological characteristics of the small scalene neurons and its clinical significance. Methods The morphology of the small scalene muscle, especially the small scalene muscle, of 64 adult cadaveric eyes was observed. Results The incidence of small scalene was 84.4%. Its nerve surface (small scalene muscle and brachial plexus dry contact interface) can be divided into six types: Ⅰ type that is all the tendon of up to 37%; Ⅱ type of its central tendon, muscular at both ends ; Type 1 under the 1/2 tendon, the upper 1/2 is muscular; type Ⅳ medial 1/2 tendon, lateral 1/2 is muscular; type Ⅴ lateral tendon, medial muscle Sex; type Ⅵ all muscular. Conclusion tendon or partial tendon of the small bevel muscle neurons is one of the factors of brachial plexus compression; neuromorphic tendon structures of different forms, often easily mistaken for an abnormal band in the surgical field of vision