Ritacco Lucas E, Milano Federico E, Farfalli German L, Ayerza Miguel A, Muscolo D L, de Quirós Fernan González Bernaldo, Aponte-Tinao Luis A
Department of Medical Informatics, Virtual Planning and Navigation Unit, Hospital Italiano de Buenos Aires, Argentina.
Stud Health Technol Inform. 2013;192:1162.
The use of three-dimensional preoperative planning and bone tumor resection guided by navigation has increased in the last ten years. However, no study to date, as far as we know, has directly provided evidence of accuracy of this method. The objective of this study was to describe a method capable of determining the accuracy of osteotomies performed for tumor resection planned and guided by navigation. We hypothesize that matching the 3D reconstructed surgical specimen is an acceptable method to determine the accuracy of virtual planning and navigation. A total of seven patients and 14 osteotomies were evaluated. After surgery, all surgical specimens were 3D reconstructed from CT images. The mean of quantitative comparisons between osteotomies planned and osteotomies obtained through the resected specimen was in a global mean of 1.56 millimeters (SD: 2.91) for all the cases. Based on our observations, a three-dimensional model obtained from the tumor surgical specimen is a useful tool to determine accuracy of 3D planning and surgical navigation.
在过去十年中，三维术前规划及导航引导下的骨肿瘤切除术的应用有所增加。然而，据我们所知，迄今为止尚无研究直接提供该方法准确性的证据。本研究的目的是描述一种能够确定在导航引导下为肿瘤切除所进行截骨术准确性的方法。我们假设匹配三维重建的手术标本是确定虚拟规划和导航准确性的一种可接受的方法。共评估了7例患者和14处截骨术。术后，所有手术标本均通过CT图像进行三维重建。所有病例中，计划截骨术与通过切除标本获得的截骨术之间定量比较的平均值总体为1.56毫米（标准差：2.91）。基于我们的观察，从肿瘤手术标本获得的三维模型是确定三维规划和手术导航准确性的有用工具。
