中文摘要：

目的 探讨个性化预成型重建板技术联合血管化髂骨肌瓣修复下颌骨缺损的临床效果.方法 2010年8月至2014年12月,对12例下颌骨肿瘤患者,术前行颌面部CT扫描及三维重建,以CT数据为基础,利用镜像技术模拟修复病变侧下颌骨缺损,应用快速原型技术制作工作模型,在修复模型上预制个性化重建钛板.根据下颌骨缺损范围及形状,设计髂骨肌瓣联合预制钛板修复下颌骨缺损.所有患者术后复查颌面部CT及口腔曲面断层全景片,观察钛板位置及骨愈合情况,并观察患者口颌系统功能及面部外形,检查修复效果.结果 颌面部CT及口腔曲面断层全景片显示12例髂骨肌瓣完全存活,骨断端愈合良好,髁突位置适中.术后患者面部外形良好,开口度、咬合关系及咀嚼功能恢复较好.供区未发生出血、腹疝等严重并发症.结论 个性化预成型重建板技术联合血管化髂骨肌瓣,为精确重建下颌骨缺损提供了有力的技术支持,可最大限度地恢复患者外观及功能.

英文摘要：

Objective To investigate the clinical effect of individual prefabricated reconstructive titanic plate combined with vascularized iliac bone-muscular flap for reconstruction of mandibular defects.Methods From Aug.2010 to Dec.2014,12 cases with mandibular tumor received preoperative maxillofacial CT scans and 3-dimensional reconstruction.Based on the CT results,mirror imaging technology was used to simulate the reconstruction of the defect at affected side.The individual reconstructive titanium plate was prefabricated on the model.The iliac bone-muscular flap was designed according to the defect shape and size,combined with reconstructive plate.All patients underwent CT scan and oral curved surface tomography postoperatively.The maxillofacial function and appearance were also evaluated.Results According to the CT scan and curved surface tomography,the 12 iliac bone-muscular flaps survived completely with good bone union and good condyle position.Both the functional and cosmetic results were satisfactory.There was no complication on the donor sites.Conclusions Individual prefabricated reconstructive titanic plate combined with vascularized iliac bone-muscular flap provides an precise method for reconstruction of mandibular defects.The cosmetic and functional results could be expected.