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Updated: Jun 11, 2026

Establishment of an Oronasal Fistula Mice Model
Published on: September 8, 2023
V-Y two-layer repair for oronasal fistula of hard palate
1Department of Otorhinolaryngology, Faculty of Medicine, Cairo University, Egypt. mosabeez@yahoo.com
Objective:
Oronasal fistula represents a functional problem after cleft palate repair; its closure is technically difficult with a high recurrence rate after primary treatment. The aim of this study was to evaluate the efficacy of closure of oronasal fistula using 2 layers of oral mucoperiosteum in a V-Y manner.
Methods:
Fourteen patients were subjected for repair of their oronasal fistulas using 2 layers; the first is the oral mucoperiosteum that is elevated and inverted to close the nasal side as a hinge flap, and the second is also the oral mucoperiosteum that is elevated and sutured in a V-Y manner to close the oral side.
Results:
In all cases, the fistula was completely closed at first attempt, no cases developed operative or postoperative complications. Recurrence with not recorded in any case after a follow-up period of at least 12 months.
Conclusion:
Closure of oronasal fistula of the hard palate that may develop after cleft palate repair using a two-layer closure in V-Y manner is an easy and ideal method with a high success rate.
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