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Closure of fistula of the hard palate with two layers of mucoperiosteum.

OBJECTIVE: Oronasal fistula represents a functional problem, as it may result in nasal regurgitation of food and fluids and it also leads to hypernasal speech. Many methods have been proposed for its closure with a high recurrence rate. The aim of this study was to assess the efficacy of closure of hard palate fistula by two layers of mucoperiosteal flaps.

METHODS: Eighteen patients with fistula of the hard palate were included. The fistula was repaired by two layers of mucoperiosteal flaps; the first layer was created from the mucoperiosteum surrounding the fistula as bilateral hinge flaps and the second layer was formed of a rotational flap based on the greater palatine artery. Pre- and postoperative clinical assessment was performed.

RESULTS: The etiology of fistulas was previous cleft palate repair in 13 patients, previous nasal septal surgery in 3 patients, and untreated sharp accidental trauma to the palate in 2 patients. All patients presented with nasal regurgitation and hypernasal speech. Complete closure of all fistulas was achieved at first attempt, with no recurrence through the follow up period.

CONCLUSIONS: Closure of oronasal fistula by two layers of mucoperiosteal flaps is an effective method and it has neither complications nor recurrence.

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