Key clinical message
A total of 89 children had their urinary catheters removed 4 weeks after the operation. All children had reviewed at least once a year for 3 consecutive years. There are 11 patients with urine leakage, who occurred after the operation. The children, diagnosed with urine leakage, were successfully repaired after the leakage occurred one year later at one time. There was no urethral stricture after an operation. The one-time success rate of this operation was 87.6% (78/89) and the incidence of the urethral fistula was 12.6% (11/89).