目的 分析改良Snodgrass手术治疗我院48例小儿尿道下裂患儿疗效。方法 随机选取我院2014年9月至2015年9 月需行手术治疗的48例1-12岁尿道下裂患儿，其中首诊患儿30例，行手术治疗后尿道裂开患儿18例，均行改良 Snodgrass手术治疗，分析术后疗效和并发症。结果 手术成功率为89.58%，平均手术时间(78.36±11.35)min，术 后尿瘘率6.25%，尿道狭窄率4.17%，并发症总发生率10.42%；其中首诊患儿和行手术治疗后尿道裂开患儿手术时间 存在显著性差异(P<0.05)，手术成功率、术后并发症差异不显著(P>0.05)。结论 改良Snodgrass手术可矫正首诊和 大多数术后尿道下裂患儿，适合中轻度阴茎下曲病例，该术式操作简便，疗效显著。

Objective To analyze the effect of improved Snodgrass surgery in the treatment of 48 cases of children with hypospadias. Methods A total of 48 cases of 1-12 years old children with hypospadias in our hospital from Sep. 2014 to Sep. 2015 were taken as the clinical research objects. Among them, 30 cases were first diagnosed, the other 18 cases were postoperative urethral rupture children. All of them were given improved Snodgrass surgery, and their clinical effects and complications were compared. Results The success rate of operation was 89.58%, the mean operative time was (78.36±11.35)min, the occurrence rate of postoperative urinary fistula, urethral stricture and complication were respectively 6.25%, 4.17% and 10.42%, the difference in the operation time between the first diagnosed children and the children who underwent surgical treatment was significant(P<0.05), but there were no significant differences in success rate and occurrence rate of complication(P>0.05). Conclusion Improved Snodgrass surgery which is simple, effective, and suitable for mild and moderate cases of lower curvature of the penis, can be used to correct first diagnosed and most postoperative hypospadias.