Skeletal stability of maxillary advancement with and without a mandibular reduction in the cleft lip and palate patient

Abstract

The stability of surgical maxillary advancement in a consecutive series of patients with cleft lip and palate who underwent Le Fort I osteotomy with and without simultaneous mandibular setback surgery was evaluated. Preoperative, postoperative, and follow-up lateral cephalograms of 21 patients were assessed to compare differences in surgical movement and postoperative relapse between two groups: those who underwent maxillary surgery alone and those who underwent bimaxillary surgery. Differences in the number of patients who experienced relapse of 4 mm between the groups were also compared. Mean advancement of the cleft maxilla was 5.5 mm in the maxilla only group and 3.6 mm in the bimaxillar..