髁状突肥大引起的面部非对称性畸形的外科矫治

目的 :探讨髁状突肥大及其引起的面部非对称性畸形的外科矫治方法。方法 :本院 1985～ 1998年收治髁状突肥大及其引起的面部非对称性畸形 42例 ,作者按其是否伴有下颌升枝、体部增长及其它颅面骨增大将其分为 Ⅰ～Ⅳ 型 ,分别采用髁突下升枝后缘"L"形截骨术 ,患侧升枝垂直截骨术搭配健侧升枝矢状劈开术、颏摆正术、颧上颌骨改形术等进行矫治。结果 :术后面形改善满意者78.6%,基本满意19.0%;牙合关系恢复良好者76.2%,基本恢复者19.0%。结论 :Ⅰ、Ⅱ型髁状突肥大及其引起的面部非对称性畸形采用髁突下升枝后缘"L"形截骨术可获得满意效果 ,Ⅲ、Ⅳ型需同时进行颌骨及其它颅面骨畸形的矫治。

Surgical Correction of the Condylar Hyperplasia and Secondary Maxillofacial Deformities

Objective:To evaluate the surgical methods in treatment of the condylar hyperplasia and secondary maxillofacial deformities.WT5”FZ]Methods:WT5”BZ]42 Patients were grouped into four types:I.condylar hyperplasia;Ⅱ.condylar hyperplasina with the enlargement of ramus;Ⅲ.condylar hyperplasia with the enlargement of mandibular body;Ⅳ .condylar hyperplasia with the enlargement of other maxillofacial skeleton.“L”type osteotomy of the posterior edge of the ramus,vertical osteotomy of ramus,genioplasty,zygomaticomaxilloplasty were performed solely or combined.Results:The occlusion was improved sigmificantly in 78.6% of the patients;76.2% of the patients were totally satisfied with the effects of the operation.Conclusion:Patients with type Ⅰ and type Ⅱ condylar hyperlasia can reach satisfactory effects through“L”type osteotomy.In patients with type Ⅲ and Ⅳ condylar hyperplasia,Osteotomy of ramus should be Combined with Correction of Craniofacial deformities