下颌角肥大矫治术及其常见并发症的处理

Analysis of the complications following correction of mandibular angle prominence

目的 探讨下颌角肥大的常见术后并发症发生的原因及防治措施。方法 1996～2 0 0 1年采用下颌角弧形截骨术治疗下颌角肥大 2 0 3例 ,其中 19例同时行颧骨截骨降低术 ,18例行颏成形术 ,11例行下颌角截除骨质隆颏术 ,2例行颏下吸脂术 ,2 9例行颊脂垫取出术。结果 2 0 3例中发生并发症者 9例 ,包括出血及血肿、感染、颏神经损伤、口唇拉伤后增生性瘢痕、双侧不对称及下颌角形态不良。结论 手术治疗下颌角肥大不但要求术前精确设计 ,手术中还要严格无菌 ,以免发生髁突骨折等严重并发症。

Objective To investigate the causes and the prophylactic measures for the complications following correction of mandibular angle prominence. Methods From 1996 to 2001, a total of 203 patients with mandibular angle prominence underwent mandibular angle osteotomy. Results of them, 9 patients had postoperative complications, which included bleeding, hematoma, infection, mental nerve injury, labia scar, asymmetry, and steep mandibular angle. Conclusion The correction of mandibular angle prominence should be designed and performed precisely. Care must be taken to avoid severe complications like condyle fracture.