摘要目的 探讨计算机辅助设计及制造技术(CAD/CAM技术)辅助腓骨肌皮瓣修复缺损下颌骨的应用价值.方法 选取2016年3月至2017年8月西南医科大学附属口腔医院收治的下颌骨病损患者8例,术前CT扫描获取下颌骨及待移植腓骨的CT数据,用CAD/CAM技术打印原始头颅及重建头颅模型、下颌骨及腓骨截骨导板.根据重建头颅模型预成型钛板,在导板及钛板辅助下实施手术.术后随访6～24个月,评估手术效果.结果 术后8例中2例因对植入物的免疫排斥导致皮瓣坏死,1例因术后血糖控制欠佳致皮瓣感染坏死,其余5例患者术区均一期愈合,腓骨肌皮瓣成活良好,供植区及受区无严重并发症发生.患者满意度高.结论 CAD/CAM技术辅助下腓骨肌皮瓣重建下颌骨具有加快手术进程,缩短手术时间、提高下颌骨截除、腓骨塑形的精确度,促进术后功能和形态恢复的优点.

abstractsObjective To explore the role of computer-aided design and manufacturing technology (CAD/CAM technology) in the repair of mandibular defects using the fibular osteomyocutaneous free flap.Methods Eight patients with a portion of mandible defect due to various reasons were subjected to preoperative CT scan,obtaining CT data of the mandible and the fibular bone to be transplanted.The original and the reconstructed skull model,as well as the mandible and fibula osteotomy guide plates,was printed using CAD/CAM technology.The titanium plates were preformed using the reconstructed skull model,and the operation was performed with the help of guide plates and a preformed titanium plate.The patients were followed up for 6 to 24 months to evaluate the operation effect.Results Two in 8 cases had flap necrosis caused by immune rejection of the implant,and one case had flap necrosis due to poor postoperative blood glucose control.The other 5 patients healed at the primary site and the fibular myocutaneous flap survived well.There were no serious complications in the donor and recepient site.The patients' satisfaction was high.Conclusions The reconstruction of mandible with the aid of CAD/CAM technique has the advantages of accelerating the operation process,shortening the operation time,improving the accuracy of mandibular amputation and fibular shaping,promotlng postoperative function and morphology recovery.