The modified Ombredanne repair for hypospadias--a comparison of single-stage and multi-stage procedures.

319 modified Ombredanne operations were carried out over a 17-year period, 149 were single-stage and 170 multi-stage procedures. 65 (20%) of the operations were carried out by registrars in training with no appreciable increase in the number of complications. The overall fistula rate was 5% with no significant difference between the types of repair. Preputial flap detachment or retraction occurred in 23 (7%) of patients. The most common complication was the minor one of an unsightly redundant prepuce which occurred in 30 (9%) of the patients and required a secondary plastic procedure. The length of hospital stay was halved in those patients undergoing the single-stage procedure when compared to the multi-stage group. Both techniques gave satisfactory cosmetic and functional results with a low incidence of serious complications.