Methods Thirteen patients with clavicle fracture nonunion were treated with shape memory alloy encircling instrument, thereinto, 12 patients were failure after inter-fixed operation and 1 patient received non-surgical treatment. All patients were treated with bone transplant. 方法使用形状记忆合金环抱器治疗锁骨骨折不愈合13例,其中内固定术后失败12例,非手术治疗1例,均采用植骨。