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Journal of the Korean Cleft Palate-Craniofacial Association 2002;3(2):190-196.
Surgical Correction of Macrostomia.
So Min Kang, Jeong Yeol Yang, Keun Hong Park, Ji Sun Cheon, Yang Soo Kang
Department of Plastic and Reconstructive Surgery, College of medicine, Chosun University, Gwangju, Korea. jyyang@mail.chosun.ac.kr
Abstract
Congenital macrostomia is a result of defective union between the mandibular and maxillary processes and it is a rare deformity seen in every 100 to 300 facial clefts. Ohnizuka1`classified macrostomia into two groups as congenital and posttraumatic. We experienced two cases of acquired macrostomia due to NOMA sequelae(58/F:Lt & 51/F:Rt) and one case of congenital macrostomia (3 months/M:Rt). Many plastic surgeons have developed surgical procedures for repair of this congenital macrostomia. Among them, McCarthy6,11 described the classic commissuroplasty. We could repaired 1 case of congenital macrostomia and two cases of acquired macrostomia due to NOMA sequelae using modified technique of McCarthy,s classic commissuroplasty. McCarthy described new oral commissure 2-3mm laterally for prevention of postoperative contraction, orbicularis oris muscle transposition to restore labial function and a z- plasty cutaneous closure. But some author raise an objection to new oral commissure 2-3mm laterally, and they made new oral commissure at same distance of opposite side normal commissure. And so, we designed the new oral commissure moved 1mm laterally comparing to original commissuroplasty in a congenital case for the prevention of displacement. In cases of acquired macrostomia due to NOMA sequelae, we reconstructed new oral commissure like congenital case, moved 1mm laterally. Orbicularis oris muscle transposition could not be possible because of destruction of muscle, adhesion and atrophy. And so we dissected muscle and just sutured side by side. Acquired macrostomia following NOMA sequelae manifsted facial deformity variably, and reconstruction of the facial deformity is difficult by using simple approach. Other variable reconstructive procedures were needed with commissuroplasty as like Washio flap, rotation advancement flap, bone graft and free radial forarm flap, etc. Postoperative results were relatively good. We propose that macrostomia due to NOMA sequelae must add to Ohnizuka classification of acquired macrostomia.
Keywords: Macrostomia; Commissuroplasty; Noma


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