[Primary intravelar vestibuloplasty--adaptation of surgical modification of the anatomical defect].

Oro-nasal fistulae often occur after the primary closure of the hard and soft palate cleft and in particular at the junction between the hard and soft palate. This is the area where maximal tension is exerted during the intravelar veloplasty closure procedure. Six surgical modifications of the primary intravelar veloplasty technique are described and each is specifically adapted according to the existing anatomical form and defect of the cleft soft palate, so that the occurrence of an oro-nasal fistula may be prevented. The surgical procedures may be divided into two main groups, namely those which are based on a localized swivel flap and those where remote flaps are used.