下顎骨 上行枝 失狀分裂 骨切斷術에 依한 顎矯正 一例

A CASE OF THE ORTHOGNATHIC SURGERY BY SAGITTAL SPLIT RAMUS OSTEOTOMY

This is a case report of the orthognathic surgery improved true mandibular prognathism by sagittal split ramus osteotomy with intraoral approach. The sagittal split ramus osteotomy was made on the lingual and buccal aspects and was then connected along the anterior border of the ascending ramus. After the mandible was displaced to the backward direction, direct bone wiring near the anterior border of ascending ramus was applied for stabilization. For preventing the postoperative swelling & hematoma, hemovac was inserted. There were no severe complications except postoperative swelling and edema for 2 days. Intermaxillary fixation was maintained for 8 weeks and postoperative orthodontic treatment was performed for 3 months.