目的　探讨X线诊断在肌营养不良进而导致肩胛骨等骨关节发生异常变化时的临床应用价值。方法　采用X线照片 ,观察骨关节各部分的位置、大小、结构。分析 3例由于肌营养不良造成骨的发育不良、畸形及关节脱位的X线表现。结果　①由进行性的肌肉萎缩引发肩胛骨旋转移位 ;②肩胛骨短小 ;③肩锁关节及肩关节脱位 ;④肩关节弯曲畸形。结论　利用X线对肌肉萎缩伴随骨关节有明显功能障碍患者进行诊断 ,可探明肌营养不良直接导致骨关节改变 ,并发现此类病的损害程度 Objective To investigate the clinical value of X-ray diagnosis in the occurrence of muscular dystrophy and subsequent abnormal changes of scapular and other bones and joints. Methods X-ray photographs were taken to observe the location, size and structure of various parts of the bone and joint. Three cases of dysplasia of bone caused by muscular dystrophy, deformity and dislocation of the X-ray findings. Results ① progressive muscular atrophy caused by scapular rotational displacement; ② scapula short; ③ acromioclavicular joint and shoulder dislocation; ④ shoulder flexion deformity. Conclusions The use of X-ray diagnosis of muscular dystrophy associated with significant dysfunction in patients with bone and joint can be found in muscular dystrophy directly lead to changes in bone and joint, and found that the extent of the damage of such diseases