超声骨刀在上颌骨陈旧性骨折治疗中的应用:附12例临床分析

目的：利用超声骨刀切开、钛板／钛网固定，采用正颌外科手段治疗12例伴错位愈合的上颌骨陈旧性骨折，评价其临床效果。方法：对12例上颌骨陈旧性骨折患者，采用LeFortⅠ型截骨术进行治疗。术中应用意大利Mectron的超声骨刀代替摇摆据进行切开，微型钛板／钛网固定，随访6～12个月，评价术后功能和美观效果。结果：利用超声骨刀切骨，切割高度精确，并且上颌骨没有发生任何振动损伤。手术所需时间比常规钻所用时间稍长。骨愈合良好，无任何神经血管异常。伤口一期愈合，咬合关系及外观满意或基本满意。结论：超声骨刀可用于颌骨陈旧性骨折的切开，精确度高，损伤小。

The use of Piezosurgery osteotomy in treatment of long-standing maxillary fractures: Report of 12 consecutive patients

PURPOSE:To evaluate the clinical applicability of Piezosurgery osteotomy:a new safe technique in managing long standing maxillary fractures.METHODS:12 patients with long-standing maxillary fractures were surgically treated using Le Fort I osteotomy.During operation,Piezosurgery osteotomy was used for bone cutting and splitting.After repositioning,the bone segments were rigidly fixed with micro Ti-plate,Ti-mesh.All the patients were followed up for 6 to 12 months,and the functional and esthetic results were evaluated.RESULTS:Ultrasonic microvibrations allow accurate bone cutting without oscillating injuries to the soft tissue.All the wounds healed primarily without complications.The postoperative occlusion and appearance were satisfactory.CONCLUSIONS:Maximal recovery of mastication and appearance can be achieved by using Piezosurgery osteotomy with fixation materials such as Ti-plates and Ti-meshes in selected patients with long-standing maxillary fractures.