The Effect of Pharyngeal Flap Surgery on the Movements of the Lateral Pharyngeal Walls

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Abstract
Prepharyngeal and postpharyngeal flap degrees of lateral pharyngeal wall movement implied some individuals have the ability to alter patterns of lateral pharyngeal wall motion. Most of the subjects did not show changes in lateral pharyngeal wall motion. In subjects showing changes, the effects of speech therapy were not excluded. Pharyngeal flaps apparently should be tailored to the size of the gap in the velopharyngeal sphincter. In many individuals, if the pharyngeal flap constructed is not as broad as the velopharyngeal gap, velopharyngeal insufficiency and hypernasality are likely to persist since the lateral pharyngeal wall movement will usually not adapt to the presence of a new structure in the pharynx.

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