Three-layered repair with a collagen membrane and a mucosal rotational flap reinforced with fibrine for palatal fistula closure in children.

The incidence of postoperative fistula following primary cleft palate repair ranges from 0% to 58%. The reported recurrence rate is between 33% and 37%, and the prognosis of a successful closure declines with each reoperation. Closure of palatal fistulas can be achieved by different techniques depending on its size and the experience of the surgeon.