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目的：探讨弹性髓内钉（ESIN）治疗儿童股骨干骨折的疗效。方法：2010年8月～2014年8月共收治儿童股骨干骨折26例，不稳定性骨折患儿术后行髋人字石膏固定4周，去除石膏后进行功能锻炼。结果：26例患者术后经平均11个月（8～20个月）随访。骨折愈合时间平均为l1周（8～12周），无再骨折、骨不连的发生，髋、膝关节活动正常。出现钉尾激惹反应2例、肢体短缩2例。结论：弹性髓内钉治疗儿童股骨干骨折，具有微创、避免骨折端2次损伤的优点，疗效好，并发症少，可作为治疗移位明显的儿童股骨干骨折的首选方法。“,”Objective:To investigate the technique of elastic stable intramedulary nailing(ESIN) on treatment femoral fractures in children and assess the clinical outcome. Methods:26 patients with displaced femoral shaft fractures were treated by ESIN from August 2010 to December 2014. Results:Al patients were folowed up for average 11 months (8~24 months). The average time of bone healing was 11 weeks (8~12 weeks). Al had ful range of motion in the near joints and got excelent results without refracture,delayed union or non-union,and rotational deformity. Two cases had irritation at nail insertion site. Two cases had 1.0~1.5 cm shortening deformity of the femur. Conclusion:The method of ESIN deserves to be a simply and minimaly invasive way for the treatment of the femoral fractures in children.