Abstract
Ten patients with hard palate fistulas and velopharyngeal incompetence were examined cineradiographically with lateral and frontal projections during connected speech. The purpose was to study velopharyngeal function for open versus covered fistulas. Fistula length, width, and size were measured. With an open fistula, the degree of lateral pharyngeal wall activity was significantly correlated at the 0.05 level to fistula size. There was no statistically significant correlation between fistula size and the degree of velar activity. With the fistula covered, the velopharyngeal movements improved or even normalized in all patients regardless of fistula size. These findings indicate that patients with both velopharyngeal incompetence and an additional fistula will need covering of the fistula. If velopharyngeal incompetence persists after a temporary covering of the fistula, a combination of velopharyngeal flap surgery and fistula covering ought to be performed to normalize the velopharyngeal activity and speech and resonance.
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