INTRODUCTION In this study we report a large series of patients with unilateral winged scapula (WS), with special attention to long thoracic nerve (LTN) palsy. METHODS Clinical and electrodiagnostic data were collected from 128 patients over a 25-year period. RESULTS Causes of unilateral WS were LTN palsy (n = 70), spinal accessory nerve (SAN) palsy (n = 39), both LTN and SAN palsy (n = 5), facioscapulohumeral dystrophy (FSH) (n = 5), orthopedic causes (n = 11), voluntary WS (n = 6), and no definite cause (n = 2). LTN palsy was related to neuralgic amyotrophy (NA) in 61 patients and involved the right side in 62 patients. DISCUSSION Clinical data allow for identifying 2 main clinical patterns for LTN and SAN palsy. Electrodiagnostic examination should consider bilateral nerve conduction studies of the LTN and SAN, and needle electromyography of their target muscles. LTN palsy is the most frequent cause of unilateral WS and is usually related to NA. Voluntary WS and FSH must be considered in young patients. Muscle Nerve 57: 913-920, 2018.

中文翻译：

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单侧翼状肩骨：128例临床和电诊断经验，特别注意长胸神经麻痹。

引言在这项研究中，我们报告了一系列单侧带翼肩骨（WS）的患者，特别注意长胸神经（LTN）麻痹。方法收集25年来128例患者的临床和电诊断数据。结果单侧WS的原因是LTN麻痹（n = 70），脊髓副神经（SAN）麻痹（n = 39），LTN和SAN麻痹（n = 5），面肩肱型营养不良（FSH）（n = 5），整形外科原因（n = 11），自愿WS（n = 6）和无明确原因（n = 2）。LTN麻痹与61例患者的神经性肌萎缩症（NA）有关，右侧62例患者。讨论临床数据可确定LTN和SAN麻痹的2种主要临床模式。电诊断检查应考虑LTN和SAN的双侧神经传导研究，和他们的目标肌肉的针状肌电图。LTN麻痹是单侧WS的最常见原因，通常与NA有关。青年患者必须考虑自愿性WS和FSH。肌肉神经57：913-920，2018。