Gottschling H, Roth M, Schweikard A, Burgkart R
Technical University of Munich, Munich, Germany.
Int J Med Robot. 2005 Sep;1(3):67-73. doi: 10.1002/rcs.29.
Intertrochanteric osteotomy of the proximal femur is a surgical technique that aims at changing the orientation of the proximal part of the femur in the hip joint by removing a bone wedge between the trochanters. Due to its six degrees of freedom, it presents a complex planning problem for the surgeon. In this paper, we propose an intraoperative planning system for proximal femur osteotomies. Based on two fluoroscopic images taken during the procedure, a primitive femur model is reconstructed, which then allows the user to interactively determine the osteotomy parameters and perform the intervention with the help of a navigation system. Besides the fluoroscopic images, no other imaging is needed. Compared to the traditional approach, this system allows the intervention to be performed with higher precision and less radiation exposure for both patient and surgeon, requiring only little time overhead. An in vitro study has demonstrated the high accuracy and ease of use of this system.
股骨近端转子间截骨术是一种外科技术，旨在通过去除转子间的骨楔来改变髋关节中股骨近端的方向。由于其具有六个自由度，给外科医生带来了复杂的规划问题。在本文中，我们提出了一种用于近端股骨截骨术的术中规划系统。基于手术过程中拍摄的两张荧光透视图像，重建一个原始股骨模型，然后允许用户交互式地确定截骨参数，并借助导航系统进行干预。除了荧光透视图像外，不需要其他成像。与传统方法相比，该系统能使干预操作以更高的精度进行，同时减少患者和外科医生所受的辐射暴露，只需要很少的额外时间。一项体外研究已经证明了该系统的高精度和易用性。
