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目的：提高对先天性假关节病理、Ｘ线表现及诊断的认识。材料与方法：总结１１例先天性假关节的Ｘ线表现。发生于胫骨１０例，其中８例合并同侧腓骨假关节；发生在尺桡骨１例。结果：先天性假关节的Ｘ线特点为假关节近端稍张开呈浅杯口状或变细变尖，远端变细变尖呈锥状，局部无骨痂。患骨有骨质增生硬化，可伴有囊性病变。结论：根据其Ｘ线特点，结合临床作出本病诊断并不困难，对于有骨质硬化或囊性变的胫骨前外方弯曲应定期Ｘ线检查，警惕有假关节形成的可能。
Objective: To improve congenital pseudarthrosis pathology, X-ray findings and diagnosis. Materials and Methods: The X-ray findings of 11 cases of congenital pseudarthrosis were summarized. Occurred in 10 cases of tibia, including 8 cases of ipsilateral fibula pseudarthrosis; occurred in the ulna and radius in 1 case. Results: The X-ray features of congenital pseudarthrosis were that the proximal part of the pseudarthrosis was shallowly opened with a shallow cup or tapering, and the distal end became thinner and tapered with local callus. Skeletal bone hyperplasia sclerosis, may be associated with cystic lesions. Conclusion: According to its X - ray characteristics, it is not difficult to diagnose this disease combined with clinical diagnosis. X - ray examination of anterior external bending of the tibia with osteopetrosis or cystic degeneration should be performed regularly to guard against the possibility of pseudarthrosis.