股骨转子间骨折三维虚拟手术研究

Three-dimensional visualization of virtual surgery for intertrochanteric fractures

目的利用Mimics和Unigraphics NX软件进行股骨转子间骨折虚拟手术,为术前精确设计手术方案提供真实可靠依据。方法选取5例股骨转子间骨折患者,利用Mimics软件对股骨转子间骨折病人的CT扫描数据进行三维重建并虚拟复位,利用Unigraphics NX软件的建模功能对测量的动力髋螺钉(DHS)手术器械数据进行三维重建。然后利用Unigraphics NX软件模拟股骨转子间骨折DHS固定手术,初步指导临床应用。结果虚拟手术过程真实逼真,立体可视化效果好,DHS螺钉进钉方向和角度准确,可充分预测骨折复位状态及手术效果。结论利用Mimics和UnigraphicsNX软件进行虚拟手术,对于个体化手术方案制定、风险评估、临床教学训练等方面都有很大的价值,对于提高股骨转子间骨折手术的安全性和准确性具有重要作用。

Objective To establish a computer-aided three-dimensional visualization operation simulation system based on Mimics and Unigraphics NX software to provide reliable evidence for accurate preoperative surgical planning. Methods The preoperative CT scans of 5 patients with intertrochanteric fractures were used for three-dimensional reconstruction of intertrochanteric fractures using Mimics software. Three-dimensional reconstruction of the surgical instruments was carried out using the modeling function of Unigraphics NX software, whose assembly function was used to visualize the simulates internal fixations of intertrochanteric fractures with dynamic hip screw （DHS） system. The operative procedures simulated by Unigraphics NX were analyzed preoperatively. Results The virtual surgery procedures were clearly and vividly visualized in three dimensions. The fracture reduction and surgical effects could be predicted using this system. Conclusions This system of three-dimensional visualization of virtual surgery for intertrochanteric fractures has important values in surgical planning, risk assessment and clinical training, and can help improve the reliability and outcome of orthopedic surgery.