Abstract

Reconstruction of Brown’s Class III maxillary defect can be challenging due to the complex geometry of maxilla. We aimed to introduce an improved method for maxillary reconstruction with a composite deep circumflex iliac artery (DCIA) flap aided by virtual surgical planning and intraoperative navigation. A 27-year-old woman diagnosed with left maxillary fibromyxoma was admitted to our institution in December 2018. Pre-operative facial and iliac computed tomography data were obtained for virtual surgical planning. Personalized cutting template, tooth-supported surgical guide, and rapid prototype model with reconstructed orbital floor were printed for pre-operative preparation. Surgery was completely guided by the intraoperative navigation system. The root mean square estimate of the reconstructed area was 3.68 mm. The average errors measured on the lateral and medial DCIA segments were 0.61 and 0.85 mm, respectively. Application of virtual surgical planning and intraoperative navigation could potentially enhance the reconstruction outcomes.

摘要

由于上颌骨的复杂几何形状，重建布朗 III 类上颌骨缺损可能具有挑战性。我们旨在介绍一种改进的上颌重建方法，该方法在虚拟手术计划和术中导航的辅助下使用复合深回旋髂动脉 (DCIA) 皮瓣。一名 27 岁女性被诊断为左侧上颌纤维粘液瘤，于 2018 年 12 月入院。获得术前面部和髂骨计算机断层扫描数据用于虚拟手术计划。打印个性化切割模板、牙齿支撑手术导板和重建眶底的快速原型模型，用于术前准备。手术完全由术中导航系统引导。重建区域的均方根估计值为 3.68 mm。外侧和内侧 DCIA 段测量的平均误差分别为 0.61 和 0.85 毫米。虚拟手术计划和术中导航的应用可能会提高重建结果。