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目的:介绍一种使用髓内钉固定尺骨、克氏针交叉固定桡骨治疗儿童严重移位的尺桡骨远端移行区骨折的方法。方法:自2016年1月至2018年12月我科治疗11例严重移位的尺桡骨远端移行区骨折患者(排除尺桡骨干、远端及骨骺骨折病例)。手术均在C臂机透视下闭合复位，以髓内钉固定尺骨远端骨折端、克氏针避开骺板交叉固定桡骨远端骨折端，术后用长臂屈肘位管型石膏固定4～6周。平均随访时间为12个月(6～15个月)。结果:所有病例均获得骨折愈合，桡骨平均12周(11～16周)，尺骨平均10周(9～13周)。所有骨折复位均良好，内固定物位置满意，固定牢固，均未损伤骨骺，随访期间未发现有内固定物移位、断裂及钉道的感染。所有患儿骨折端未发现有畸形愈合、延迟愈合、不愈合及前臂、腕关节活动受限、骨骺损伤等并发症。结论:髓内钉固定尺骨联合交叉克氏针固定桡骨治疗儿童严重移位的尺桡骨远端移行区骨折，不固定骨骺，效果可靠，术后并发症少，是一种安全、微创且有效的手术方法。“,”Objective:To introduce a method of using intramedullary nail to fix the ulna and Kirschner wire to fix the radius to treat the severely displaced fracture of distal radius and ulna transition zone in children.Methods:From January 2016 to December 2018, 11 patients with severe displacement were treated in our department (excluding the cases of fracture of diaphysis, distal end and epiphysis). All the operations were performed closed reduction under the fluoroscopy of C-arm machine. The fracture end of distal ulna was fixed by intramedullary nail, and the fracture end of distal radius was fixed by Kirschner wire avoiding epiphyseal plate. After operation, the long arm elbow flexion tube plaster was used for fixation for 4 to 6 weeks. The average follow-up time was 12 months (range, 6 to 15 months).Results:All the cases were healed. The average healing time was 12 weeks (range, 11 to 16 weeks) for radius and 10 weeks (range, 9 to 13 weeks) for ulna. All the fractures had good reduction, satisfactory internal fixation position, firm fixation, and no epiphysis injury. During the follow-up period, no internal fixation displacement, fracture and infection of nail tract were found. No deformity union, delayed union, nonunion, forearm and wrist joint movement limitation, epiphyseal injury and other complications were found at the fracture end of all children.Conclusion:The intramedullary nail fixation of ulna combined with cross Kirschner wire fixation of radius is a safe, minimally invasive and effective surgical method to treat the severely displaced fracture of distal radius and ulna transition zone in children. The effect is reliable and the postoperative complications are few without fixation of epiphysis.