Päijät-Häme Joint Authority for Health and Wellbeing, Department of Oral and Maxillo-Facial Surgery.
Päijät-Häme Joint Authority for Health and Wellbeing, Department of Radiology, Lahti.
J Craniofac Surg. 2021;32(2):e116-e119. doi: 10.1097/SCS.0000000000006821.
Computer-aided design and manufacturing (CAD-CAM)-based techniques are developing fast in facial reconstruction and osteosynthesis. Patient-specific implant (PSI) production is already sufficiently fast for everyday use and can be utilized even for primary trauma surgery such as orbital floor reconstruction after blowout fracture. Purpose of our study is to retrospectively analyze the 3-dimensional (3D) success of PSI reconstructions of orbital floor fractures in our unit. The authors analyzed retrospectively a 1-year cohort (n = 8) of orbital floor blow-out fractures that have been reconstructed using virtual surgical plan and CAD-CAM PSI. Postoperative computed topographies of patients were compared to their original virtual surgical plans. The 3D outcome and fitting of the PSI was good in all patients. Mean error for 3D position of the PSI was 1.3 to 1.8 mm (range 0.4 to 4.8 mm) and postoperative orbital volume was successfully restored in all of the patients. Use of CAD-CAM PSI for reconstruction of orbital floor blow out fracture is reliable method and thus recommended.
基于计算机辅助设计和制造（CAD-CAM）的技术在面部重建和骨合成方面发展迅速。患者特异性植入物（PSI）的生产已经足够快，可以用于日常使用，甚至可以用于初级创伤手术，如爆裂性骨折后的眼眶底重建。
我们研究的目的是回顾性分析我们单位使用 PSI 重建眼眶底骨折的 3 维（3D）效果。作者回顾性分析了使用虚拟手术计划和 CAD-CAM PSI 重建的 1 年队列（n=8）眼眶底爆裂性骨折患者。将患者的术后计算机断层扫描与原始虚拟手术计划进行比较。所有患者的 PSI 的 3D 结果和适配都很好。PSI 的 3D 位置的平均误差为 1.3 至 1.8 毫米（范围 0.4 至 4.8 毫米），所有患者的术后眼眶容积均成功恢复。使用 CAD-CAM PSI 重建眼眶底爆裂性骨折是一种可靠的方法，因此推荐使用。
