Rana M, Holtmann H, Rana M, Kanatas A N, Singh D D, Sproll C K, Kübler N R, Ipaktchi R, Hufendiek K, Gellrich N-C
Br J Oral Maxillofac Surg. 2019 Oct;57(8):782-787. doi: 10.1016/j.bjoms.2019.07.012. Epub 2019 Jul 27.
Contemporary advances in technology have enabled the transfer of industrial laser melting technology to surgery, and its use can improve the accuracy of orbital restoration. The aim of this study therefore was to evaluate the accuracy of primary orbital reconstruction with the use of selective laser melted, patient-specific implants and navigation. A total of 100 patients with complex orbital fractures were included. Planned orbital volumes were compared with those achieved, and angles were compared with the unaffected side. Analysis included the overlay of postoperative on planned images (iPlan 3.0.5, Brainlab). The mean (SD) orbital volume of the unaffected side was 27.2 (2.8)ml in men and 25.0 (2.6)ml in women. Fractures that involved the posterior third of the orbital floor and comminuted fractures showed significant orbital enlargement (p=0.026). The mean (SD) reconstructed orbital volume was 26.9 (2.7)ml in men and 24.26 (2.5)ml in women. Three-dimensional analysis of the colour mapping showed minor deviations when compared with the unaffected side. The results suggest that a high degree of accuracy can be routinely achieved in these complex cases.
当代技术进步已使工业激光熔化技术能够应用于外科手术，其应用可提高眼眶修复的准确性。因此，本研究的目的是评估使用选择性激光熔化的定制植入物及导航进行初次眼眶重建的准确性。共纳入100例复杂眼眶骨折患者。将计划的眼眶容积与实际获得的容积进行比较，并将角度与未受影响侧进行比较。分析包括术后图像与计划图像（iPlan 3.0.5，Brainlab）的叠加。未受影响侧眼眶的平均（标准差）容积在男性中为27.2（2.8）ml，在女性中为25.0（2.6）ml。累及眶底后三分之一的骨折和粉碎性骨折显示眼眶明显增大（p = 0.026）。重建眼眶的平均（标准差）容积在男性中为26.9（2.7）ml，在女性中为24.26（2.5）ml。与未受影响侧相比，彩色映射的三维分析显示偏差较小。结果表明，在这些复杂病例中可常规实现高度的准确性。
