双侧颧骨及下颌角截骨整形术矫正方脸畸形

Square face deformity corrected by bilateral malar reduction and mandibualr angle osteotomy

目的 探讨矫正方脸畸形的一种新术式。方法 针对方脸畸形多表现为颧骨突出合并下颌角肥大的特点 ,采用双侧颧骨截骨降低加双侧下颌角截骨整形术 ,1次或分 2次手术完成矫治 ,操作完全在口内进行。结果 本组 2 1例 ,其中 1 2例为 1次手术完成 ,9例为分 2次手术完成。术后中面部宽度 (双侧颧点间距 )减少 (1 5 .3± 3.2 )mm ,下面部宽度 (双侧下颌角间距 )减少 (1 4 .2± 2 .5 )mm。伤口均愈合良好 ,无感染、血肿等并发症发生。仅 1例术后下唇麻木 ,1个月后自行恢复。术后 3个月以上复查 ,全部受术者外观改善均满意。结论 双侧颧骨及下颌角截骨术可有效降低面中 1 / 3宽度、突度及面下 1 / 3宽度 ,从而使整个面部轮廓变得圆滑、柔美 ,方形面型得到满意改善。

Objective To introduce a new method for correcting square face deformity.Methods This operation consists of malar reduction (MR)and mandibular angle osteotomy (MAO),which could be done simutaneously or at different time.Results A total of 21 patients with square face deformity accepted MR and MAO in which 12 cases were done simutaneously and 9 cases at different time.After this procedure, the width of the mid face and the lower face reduced by 15.3±3.2mm and 14.2±2.5mm, respectively. A11 the cases achieved satisfactory results without complications.Conclusion This method can effectively correct square face deformity by reducing the width and protrusion of the mid face and the width of the lower face.