상악골 수평골 절단술시 MINIPLATE에 의한 고정

Rigid fixation of LeFort Ⅰ osteotomy

Relapse, as one of majot complications after orthognathic surgery, was well documented. Conventional transosseous wiring technique plays an important role in relapse, and it required and long-term intermaxillary fixation, usually up to 6-8 weeks. The stability of maxillary repositioning after LeFort Ⅰ osteotomy has proved unsatisfactory in wire osteosynthesis. The lack of success has been ascribed to instability of the fixation combined with the fact that the muscles of the mastication cause a pumping action of the mandible against the maxilla. Our technique, miniplate osteosynthesis in LeFort Ⅰ soteotomy, was proved to be more satisfactory than wire ostesynthesis; good stability, no need of intermaxillary fixation, and reduced relapse rate.