Reoperation by anterior perineal approach for missed puborectalis.

Poor postoperative continence in patients operated for high imperforate anus may result from an inadequate bowel pull-through behind the puborectal muscle. Between 1979 and 1983, we used the anterior perineal approach for reoperations in five such cases (3 males, 2 females). In all of them, preoperative continence was socially unacceptable. Each time it was possible to identify a partially or totally missed puborectal muscle. Although some complications occurred postoperatively, all patients acquired a socially acceptable level of continence with a mean follow-up of 4.5 years. Preoperative and postoperative rectal manometries are presented. The anterior perineal approach not only provides adequate exposure of the urethra and puborectal muscle, but also has the advantage of operating through an area that has not been previously dissected.