Belei Peter, Skwara Adrian, De La Fuente Matías, Schkommodau Erik, Fuchs Susanne, Wirtz Dieter-C, Kämper Christian, Radermacher Klaus
Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany.
Comput Aided Surg. 2007 May;12(3):160-7. doi: 10.3109/10929080701336207.
Metal-on-metal hip resurfacing arthroplasties represent an alternative to total hip arthroplasties for young and active patients, enabling the preservation of intact femoral bone and therefore improving the prognosis for future hip joint replacements. Follow-up studies have shown that the main reasons for early implant failure are mal-orientation of the implant stem in relation to the femoral neck axis, and notching of the femoral neck during femoral head preparation, as well as by exposed cancellous bone after implantation. A computer-assisted planning and navigation system for the implantation of femoral hip resurfacing implants has been developed which supports the surgeon during intraoperative fluoroscopy-based planning and navigation of implant positioning. This paper presents the results of a cadaver study performed to evaluate the system's functionality and accuracy.
对于年轻且活动量大的患者，金属对金属髋关节表面置换术是全髋关节置换术的一种替代方案，它能够保留完整的股骨骨质，从而改善未来髋关节置换的预后。随访研究表明，早期植入失败的主要原因是植入物柄相对于股骨颈轴线的方向错误、股骨头准备过程中股骨颈出现切口以及植入后松质骨暴露。现已开发出一种用于植入股骨髋关节表面置换植入物的计算机辅助规划和导航系统，该系统在基于术中荧光透视的植入物定位规划和导航过程中为外科医生提供支持。本文介绍了一项尸体研究的结果，该研究旨在评估该系统的功能和准确性。
