口内途径坚强内固定术治疗下颌骨骨折29例报告

目的 :评价口内途径坚强内固定术及术中暂时性小环结扎治疗下颌骨骨折的效果。方法 :对 2 9例 47处下颌骨体部骨折先作两侧磨牙区和切牙区三点式颌间小环结扎 ,骨折线两侧作牙间结扎 ,初步恢复下颌骨的弓形和咬合关系后 ,自下颌前庭沟作切口 ,显露骨折处并复位后进行小型钛板坚强内固定术。术毕拆除颌间结扎 ,恢复下颌运动。分别于术后第 1d和 90d进行临床和X线检查 ,评价其咬合关系、骨折复位及愈合情况。结果 :2 9例47处下颌骨体部骨折均获得良好的复位和骨性愈合 ,咬合关系良好 ,无并发症。结论 :口内途径小型钛板坚强内固定术可对下颌骨体部骨折进行良好的固定 ,获得满意的咬合关系。

Transoral miniplate fixation of mandibular body fractures without maxillomandibular fixation:29 cases report

Objective:To assess the efficacy of introral open reduction of mandibular body fractures using a 2.0-mm titanium miniplate rigid fixation without maxillomandibular fixation(MMF). Method:47 mandibular fractures in 29 patients were included in this study. A Triangular maxillomandibular wire fixation in bilateral molars and incisor regions and interdental wire fixation beside the fracture lines were adapted after manual reduction prosoperatively. After the mandibular arch has been returned to premorbidity and fixed primarily, a transoral mucoperiosteal incision was made to reveal the fracture lines and fragments, one or two 2.0-mm titanium miniplate were adapted along Champy's lines of ideal osteosynthesis and secured with 8.0-mm monocortical screws after the bone fragments have been reduced appropriately.Panoramic radiograph and clinical examination were applied one day and three months after the operation to exhibit bone union and occlusion . The other complications were also assessed. Result: All patients displayed satisfactory occlusion and bone union without evident complications. Conclusion: A transoral 2.0-mm miniplate rigid fixation after a temporary triangular maxillomandibular wire fixation and interdental wire fixation beside the fracture lines was appropriate to mandibular fractures. MMF was not nessesory.