Unilateral gate flap for reconstruction of the lower lip.

A unilateral gate-flap technique consisting of a nasolabial island flap is presented for the reconstruction of defects in the lower lip after excision of large, laterally located epidermoid tumors. The amount of healthy tissue resected is optimal. The reconstructed lower lip retains sensation and muscle function and is continent with a satisfying appearance. Temporary flap edema and a vermilion notch at the apex of the flap are both avoidable problems. This method may be used in selected patients with large advanced epidermoid cancers of the lower lip.