Abstract: Abstract: Objective: To determine the usefulness of closed reduction and internal ?xation（CRIF）as the initial treatment for completely displaced and rotated fractures of the lateral condyle of the humerus in children. Methods: We prospectively studied 51 completely displaced and rotated lateral condylar fractures of the humerus in children (JAKOB Stage 3, 40 boys and 11 girls) that were treated by three different surgeons from 2007 to 2011. In 51 fractures, we initially attempted CRIF. We assessed the preoperative degree of displacement and postoperative radiographic quality of CRIF. Clinical results were graded using the criteria suggested by Hardacre et al. Results: Three fractures were treated with ORIF initially because of lack of experience with it. Closed reduction to within 2 mm failed in eleven fractures, so ORIF was then performed. 37 of 51 (72.5%) completely displaced and rotated fractures were reduced within 2 mm of residual displacement using the CRIF. There were no signi?cant complications such as limited range of motion, pain, osteonecrosis of the trochlea or capitellum, nonunion, malunion, or early physeal arrest. Conclusion: CRIF is an effective treatment for completely displaced and rotated lateral condyle fractures of the humerus in children.

摘要： 【摘要】目的：探讨闭合复位内固定治疗儿童肱骨外髁完全移位旋转骨折的疗效。方法：选取自2007年至2011年间由本院3位不同的骨科医生治疗的51例儿童肱骨外髁完全移位旋转骨折（JAKOB Ⅲ期，男40例和女11例），手术开始尝试闭合复位内固定，失败后则直接采用切开复位内固定的治疗方案，通过测量术前术后骨折移位量以观察治疗质量，使用Hardacre标准对疗效进行评级。结果：1位医生因缺乏经验，有3例患儿一开始就接受切开复位内固定治疗。以复位后骨折移位小于2mm为标准，有11例闭合复位失败患儿接受了切开复位内固定治疗。在本研究51例患儿中，37例（72.5％）闭合复位内固定治疗的患儿其骨折旋转移位减至2mm以内。本研究并没有发生关节受限、疼痛、肱骨滑车或小头坏死、骨不连、畸形愈合或骨骺早闭等的并发症。结论：闭合复位内固定能有效治疗儿童完全移位、旋转的肱骨外髁骨折。

关键词: 肱骨外髁骨折, 旋转, 闭合复位内固定, 儿童