Jerosch J, Weipert A, Hanusek S, Schneppenheim M
Department of Orthopaedic Surgery, Johanna Etienne Hospital, Am Hasenberg 46, 41462 Neuss, Germany.
Arch Orthop Trauma Surg. 2002 Jul;122(6):342-5. doi: 10.1007/s00402-001-0381-4. Epub 2002 Feb 14.
The purpose of the present study was to develop and present a computer program for preoperative simulation of implant components placement in total hip alloarthroplasty, and its influence on the possible range of motion (ROM). We evaluated a computer simulation for preoperative estimation of range of motion (movement mapping) in total hip replacement. The computer program was based on Borland C++. The system had an open data port, so the data could be transferred to an Excel spreadsheet for statistical evaluation. With the developed virtual computer simulation, a practical model was established. The model showed range of motion patterns which correspond to clinical experience. ROM was best at a shaft anteversion between 20 degrees and 30 degrees. ROM had its maximum with a CCD angle of 120 degrees -130 degrees. Acetabular cup anteversion was optimal between 10 degrees and 20 degrees, and cup inclinations were optimal below 40 degrees. The presented movement mapping system seems to be a reliable option for dynamic preoperative planning, which may be a prerequisite for the use of intraoperative navigation systems.
本研究的目的是开发并展示一个用于全髋关节置换术中植入部件术前放置模拟的计算机程序，以及其对可能的活动范围（ROM）的影响。我们评估了一种用于全髋关节置换术前活动范围估计（运动映射）的计算机模拟。该计算机程序基于Borland C++。该系统有一个开放数据端口，因此数据可以传输到Excel电子表格进行统计评估。通过开发的虚拟计算机模拟，建立了一个实用模型。该模型显示的运动模式与临床经验相符。当股骨干前倾角在20度至30度之间时，活动范围最佳。当颈干角为120度至130度时，活动范围最大。髋臼杯前倾角在10度至20度之间最佳，杯倾斜度在40度以下最佳。所展示的运动映射系统似乎是动态术前规划的可靠选择，这可能是使用术中导航系统的一个先决条件。
