摘要目的 探讨计算机导航辅助下颌骨截骨的手术效果,为提高手术精确性、有效性、安全性提供参考依据.方法 2015年3月至201 7年3月,上海交通大学医学院附属第九人民医院整复外科采用导航辅助下经口内入路截骨术治疗下颌角肥大患者15例,对下颌骨形态与术前设计进行对比分析,统计并发症发生率.结果 计算机导航辅助下颌角截骨术后效果与术前设计精准匹配,15例患者术后下颌角轮廓自然流畅,双侧对称,且无明显并发症的发生.结论 计算机导航辅助下颌角截骨术可较好解决因选择口内入路视野暴露有限的难题,显著提升手术的精确性、有效性、安全性.

abstractsObjective To investigate the contouring plastic effect of the digital navigation techniques assisted mandibular angle osteotomy,thereby providing surgical reference and evaluation basis for improving the accuracy,efficacy and safety of surgery.Methods From March 2015 to March 2017,15 female cases of the digital navigation aided intral-oral mandibular angle osteotomy in the past 2 years were collected and compared to the pre-operational image and digital design.Results The postoperative effect of navigation-assisted mandibular angle osteotomy was well matched to that of preoperative design.The mandibular angle was smooth and bilateral symmetrical with no obvious complication occurred.Conclusions Navigation-assisted techniques can solve the problem of limited exposure of intra-oral approach and significantly improve the accuracy,effectiveness and safety in mandibular angle osteotomy.