Saelen R, Tornes K, Halse A
Department of Oral and Maxillofacial Surgery, University Hospital Haukeland, Bergen, Norway.
Int J Adult Orthodon Orthognath Surg. 1998;13(4):317-23.
Le Fort I osteotomies were performed in 20 patients with cleft lip and palate as a one-segment movement, and the fragments were fixed with miniplates without bone grafting. Tracings of preoperative and serial postoperative lateral cephalograms were used to determine changes in maxillary position. The posterior nasal spine, not subjected to extensive changes during surgical procedures and remodeling, was found to be the most reliable landmark for measuring maxillary advancement and stability. The mean maxillary advancement was 5.96 mm. Analysis did not reveal significant changes in linear and angular measurements from immediately postoperative to 6 months postoperative. A modest maxillary advancement by Le Fort I osteotomy, along with alleviation of palatal scar tissue tension and miniplate fixation, is a stable surgical method in patients with cleft lip and palate.
对20例唇腭裂患者进行了Le Fort I型截骨术，作为单节段移动，并用微型钢板固定骨块，未进行植骨。术前及术后系列头颅侧位片的描图用于确定上颌位置的变化。后鼻棘在手术过程和重塑过程中未发生广泛变化，被发现是测量上颌前移和稳定性最可靠的标志。上颌平均前移5.96毫米。分析未显示术后即刻至术后6个月线性和角度测量有显著变化。Le Fort I型截骨术适度的上颌前移，以及腭部瘢痕组织张力的减轻和微型钢板固定，是唇腭裂患者一种稳定的手术方法。
