下颌骨双向牵张成骨治疗颞下颌关节强直伴小下颌畸形

Mandibular bilateral distraction osteogenesis in the treatment of temporo-mandibular joint ankylosis with severe micromandibular deformity

目的:探讨牵张成骨技术在颞下颌关节强直伴小下颌畸形治疗中的应用效果。方法:对6例颞下颌关节强直伴严重小下颌畸形的患者采用一期下颌骨双向牵张成骨、二期颞下颌关节成形术进行治疗。结果:所有患者术后均顺利完成牵引计划,并在3个月后拆除牵张器,面容获得极大改善,张口度达到25mm以上,睡眠呼吸暂停症状消失,营养状况改善,口内咬合关系基本恢复。结论:牵张成骨技术为临床上治疗颞下颌关节强直伴严重小下颌畸形提供了有效方法。

Objective：To investigate the clinical effect of mandibular bilateral distraction osteogenesis in the treatment of temporo-mandibular joint ankylosis accompanied with severe micrognathia.Methods：Six patients with temporo-mandibular joint ankylosis accompanied with severe micrognathia were treated by mandibular bilateral distraction osteogenesis,and then by arthroplasty of temporo- mandibular joint.Results：The distraction procedure was successfully completed for all patients.After 3 months,the distraction devices were removed.After the treatment,the facial features were greatly improved,mouth opening reached more than 25 mm,and the sleep apnea symptoms disappeared.Conclusion：The distraction osteogenesis provides a clinical effective method for the treatment of temporo-mandibular joint ankylosis with severe micrognathia.