Postl Lukas K, Kirchhoff Chlodwig, Toepfer Andreas, Kirchhoff Sonja, Schmitt-Sody Marcus, von Eisenhart-Rothe Rüdiger, Burgkart Rainer
Clinic of Orthopaedics and Sportsorthopaedics, Klinikum rechts der Isar, Technische Universitaet Muenchen, Munich, Germany.
Clinic of Trauma Surgery, Klinikum rechts der Isar, Technische Universitaet Muenchen, Munich, Germany.
Int J Med Robot. 2017 Jun;13(2). doi: 10.1002/rcs.1752. Epub 2016 Jun 8.
The aim of this study was to evaluate the accuracy of supra-acetabular pelvic tumor resections in human, full-body cadavers and under realistic operation room conditions with the help of a navigation system and K-wires as guidance for the oscillating saw.
Seven hemipelvises from fresh, human, male, full-body cadavers were used. A preoperative and a postoperative CT was performed. Under control of the navigation system K-wires were inserted and served as guidance for the oscillating saw to reduce the error by vibration and jerking movements. The accuracy of the computer aided resections was compared with the accuracy of freehand resections in customized 3D printed pelvises with geometries identical to the cadavers used.
The mean deviation of the navigated osteotomies was 1.9 mm (standard deviation 1.0 mm) significantly (P < 0.001) lower than the mean deviation of freehand osteotomies at 9.2 mm (standard deviation 3.7 mm).
Navigated K-wires for supra-acetabular osteotomies allow significantly higher accuracy than freehand procedures under simulated operation room conditions. Copyright © 2016 John Wiley & Sons, Ltd.
本研究旨在借助导航系统和克氏针作为摆动锯的导向，在人体全身尸体及真实手术室条件下评估髋臼上骨盆肿瘤切除术的准确性。
使用了7个来自新鲜男性人体全身尸体的半骨盆。术前和术后均进行了CT检查。在导航系统的控制下插入克氏针，并作为摆动锯的导向，以减少因振动和猛拉动作产生的误差。将计算机辅助切除术的准确性与在定制的3D打印骨盆中进行的徒手切除术的准确性进行比较，这些3D打印骨盆的几何形状与所使用的尸体相同。
导航截骨术的平均偏差为1.9毫米（标准差1.0毫米），显著低于徒手截骨术的平均偏差9.2毫米（标准差3.7毫米）（P < 0.001）。
在模拟手术室条件下，用于髋臼上截骨术的导航克氏针比徒手操作具有显著更高的准确性。版权所有© 2016约翰威立父子有限公司。
