Bell W H, Scheideman G B
J Oral Surg. 1981 Sep;39(9):666-70.
Thirteen adults with vertical maxillary deficiency were treated by Le Fort I osteotomy and autogenous interpositional bone grafts to increase facial height. A retrospective cephalometric study of 11 of these patients showed that a consistent relapse of approximately 2 mm occurred, predominantly during the early postoperative period (two to three months). Thereafter, there was minimal positional change of the maxilla. The upper lip tended to lengthen a little. The amount of maxillary tooth exposure increased and improved the smile line and lip-to-tooth relationship. Future modifications of the surgical technique should be designed to maximize stability by improved methods of interosseous fixation during the critical early postoperative period, when much of the relapse occurs.
13名垂直上颌骨发育不全的成年人接受了Le Fort I型截骨术和自体骨植入术，以增加面部高度。对其中11名患者的回顾性头影测量研究表明，主要在术后早期（两到三个月）出现了约2毫米的持续复发。此后，上颌骨的位置变化很小。上唇有轻微变长的趋势。上颌牙齿暴露量增加，改善了微笑线和唇齿关系。未来手术技术的改进应旨在通过在术后关键的早期（复发多发生在此期间）采用改进的骨间固定方法来最大限度地提高稳定性。
