Use of the labial artery for replantation of the lip and chin

A 12-year-old boy suffered from a full-thickness traumatic amputation of his lower lip and chin following a horse bite. Microsurgical technique was used to reanastomose the inferior labial artery and a vein of the chin. The replanted flap remained viable, and the patient has done well despite some early problems with eating and drooling. The patient is now able to purse his lips and has regained sensation and the use of his orbicularis oris and musculus mentalis, even though no attempt was made to repair the motor nerves or sensory nerves. Because of the potential superior cosmetic and functional results following replantation, we recommend aggressive microsurgical attempts at arterial and venous anastomosis not previously described following traumatic amputation. The inferior labial artery may be considered for use as a nutrient artery for replantation and in future elective maxillofacial reconstruction and free-flap transfer.

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