股骨转子间骨折的可视化仿真手术研究

目的研究可视化仿真手术在股骨转子间骨折治疗中的应用。方法采集股骨转子间骨折患者64排螺旋CT的原始扫描数据,通过自适应区域生长算法对CT序列图像进行图像程序分割和自动提取,再采用自行研发的图像处理软件对图像数据进行三维重建,并导入FreeForm Modeling System中进行图像修饰,利用CAD软件UnigraphicsNX和GHOSTSDK软件开发出动力髋螺钉（dynamic hip screw,DHS）仿真手术器械,利用PHANTOM力反馈设备进行股骨转子间骨折患者术前的可视化仿真手术研究。结果三维重建后的股骨近端三维结构清楚,各骨折块相对关系明确。在股骨转子间骨折的仿真手术系统中,利用开发出来的DHS仿真手术器械,利用PHANTOM系统可以完成和真实手术一样的股骨转子间仿真手术,效果逼真。结论股骨转子间骨折CT数据三维重建和可视化仿真手术可以让术者在术前对骨折块的三维结构有清晰的了解,对股骨转子间骨折手术的个体化手术方案制定、减少术后并发症、提高手术效果等方面都有很大的应用价值。

Visual simulation surgery for intertrochanteric fractures

Objective To study the feasibility of visual-reality technique for simulating intertrochanteric fractures operation.Methods The original image data of 64-slice spiral CT were obtained from a patient with intertrochanteric fractures.Using adaptive region growing algorithm,the serial CT images were segmented and automatically extracted for 3-dimensional reconstruction of the femoral and the anatomically related structures with a self-designed program.The model was then processed with Freeform Modeling System ...