【摘要】 目的探讨牵引成骨技术在颞下颌关节强直治疗中的应用。方法应用内置式牵引器治疗8例单侧颞下颌关节强直患者,患侧升支区制备一个1.5～2.0cm颊舌向等宽的骨间隙,并去除喙突,恢复开口度,升支后缘方块截骨,截骨块保留翼内肌附着,与下颌骨间安装牵引器,术后采用升支牵引成骨术,每日牵引1mm,分2次完成,重建颞下颌关节结构及恢复颞下颌关节功能,并坚持开口训练18个月以上。结果经牵引成骨后,患者牵引间隙成骨良好,新形成的关节形态得到改建,升支高度延长1.2～2.1cm,开口度达到正常。结论牵引成骨是治疗颞下颌关节强直的有效方法。更多还原

【Abstract】 Objective To examine the effects of mandibular distraction osteogenesis in treatment of temporomandibular joint(TMJ) ankylosis. Methods Eight patients,aged from 16 to 45 years (mean 28 years),with unilateral TMJ ankylosis were treated by mandibular distraction osteogenesis. The bony mass was removed to create a 1.5-2.0 cm space in the alkalosis area of the ramus. The transport disc was installed and connected with the mandible. The distraction began one week after operation at a rate of 0.5mm at a time,2 times a day. The patients underwent active mouth -opening training for at least 18 months. Results After distraction osteogenesis,new bone formation in distraction gaps accomplished,and the TMJ remodeled. The height of ramus increased by between 1.2-2.1 cm. Postoperative maximal mouth opening reached 3.8-5.2 cm. Conclusion Distraction osteogenesis is an effective method in treatment of TMJ ankylosis.更多还原