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结合小儿三角肌挛缩症的临床特点和治疗结果，探讨其病因及治疗方法。近５年来收治小儿三角肌挛缩症４例。均为男性，就诊时年龄２～１１岁。４例均在１．５～２岁时发现两侧肩部不对称，逐渐加重。除１例外，肩部均无注射药物史。肩关节呈异常的外展姿势，内收受限。三角肌部可扪及硬性条索状物。Ｘ线表现：肩关节内收位时呈半脱位征，外展９０°位时关节结构无异常。全组均经手术治愈。术中彻底切断松解纤维化的肌组织，盂肱关节半脱位在松解过程中可自行复位，不需特殊治疗。术后早期积极进行功能锻炼，效果满意。本病可能是先天性因素所致。早期诊断，及时治疗可避免继发性骨关节改变。
Combined with the clinical features of children with deltoid contracture and treatment results, explore the etiology and treatment. In the past 5 years admitted to children with deltoid contracture in 4 cases. All men, aged 2 to 11 years old. 4 cases were found in 1.5 to 2 years old on both sides of the shoulder asymmetry, and gradually increased. With 1 exception, there was no history of injection on the shoulder. Abnormal shoulder shoulder posture, adduction limit. Deltoid palpable and rigid cord-like objects. X-ray performance: Shoulder joint was subluxated sign, abduction 90 ° when the joint structure was normal. The whole group were cured by surgery. Thoroughly cut off the fibrosis of the muscle tissue during surgery, glenohumeral joint subluxation in the release process can be reset on their own, without special treatment. Active early postoperative functional exercise, the effect is satisfactory. The disease may be due to congenital factors. Early diagnosis, timely treatment can prevent secondary bone and joint changes.