Comparison of urethral complications between one-stage and two-stage repair of severe hypospadias

Abstract

Objective To explore the difference of urethral complications between one-stage and two-stage repair of severe hypospadias. Methods A total of 765 patients underwent repairing of severe hypospadias from January 2009 to December 2013. They were divided into two groups of one-stage repair (Duckett & Duckett plus Duplay) (A, n=650) and two-stage repair (B, n=115). Two groups were compared with regards to age, length of urethral defect, rate of urethral fistula, urethral diverticulum and urethral stricture. Results In group A, the mean age was 29(7-130) months and the mean length of urethral defect 4.01(2.00-8.00) cm; in group B, the mean age was 34(8-156) months and mean length of urethral defect 4.33(3.00-9.00) cm. No difference of statistic significance existed in age, length of urethral defect (P>0.05, P>0.05) or rate of urethral complications [group A 30.5%(198/650) vs group B 33.9%(39/115), χ2=0.544, P>0.05]. Difference of statistic significance existed in rate of urethral fistula [group A 16.0%(104/650), group B 31.3%(36/115), χ2=15.307, P 0.05]. Conclusions For overall complications of severe hypospadias, there is no difference of statistic significance between one-stage and two-stage repairing. However, the rate of urethral fistula is lower after one-stage repair and the rate of urethral diverticulum tends to be lower after two-stage repair. Key words: Hypospadias; Urethroplasty; Complication