Reconstruction of electrical burns of the oral commissure with a ventral tongue flap.

Reconstruction of the oral commissure following electrical burn injury is a challenging problem. The commissure is a thin, delicate structure that is highly mobile and essential to normal facial appearance and expression. When there is full-thickness destruction of vermilion, mucosa, skin, and orbicularis muscle, the resulting contracture alters adjacent structures, displaces the commissure, and distorts facial animation. Utilizing a composite ventral tongue flap of mucosa and muscle in the reconstruction of the commissure permits effective release of scar contracture and replaces destroyed mucosa and muscle bulk. Remaining structures can be returned to their normal location, and the three-dimensional contours of the oral commissure can be better restored. The use of this flap in 21 patients has resulted in improved mobility, more normal facial expression, and more consistent results in the reconstruction of a wide range of commissure deformities.