CT画像を利用したLe Fort I型骨切り術適用時における骨接触に関する研究

上顎前方移動, 上方移動時における骨接触の検討

抄録

Bony contact after the maxilla had been mobilized by Le Fort I osteotomy was evaluated by computed tomographic examination of 52 Japanese dry skulls. The lateral piriform wall and the base of the zygomatic process of the maxilla which consist of thick bone are important areas to achieve good stability. Some cases of maxillary advancement and/or impaction lacked an osseous interface at the posterior wall. Preoperative CT along the osteotomy-line is recommended to achieve better postoperative stability.