Repair of congenital H-type vestibuloanorectal fistula through the posterior midsagittal approach: case report.

The posterior midsagittal approach was successfully used for the repair of congenital H-type vestibuloanorectal fistula in a patient 1.5 months old. Technical details of the operation which consisted of two main parts are described. Identification and dissection of the fistulous tract started following midsagittal division of the sphincters and the posterior half of the rectum with the patient in a knee-chest position. The dissected part of the fistulous tract was inverted per vagina. Completion of dissection and excision of the fistulous tract were accomplished with the patient in the lithotomy position. The main advantage of the procedure was the ability to completely excise the fistula under direct vision.