摘要目的 探讨建立髋臼骨折Letournel-Judet分类的三维数字仿真模型的方法及意义. 方法 对1名健康女性志愿者行骨盆16排螺旋CT扫描,所得Dicom格式的数据应用Mim-ics 10.01软件处理,重建出髋骨模型.依据髋臼骨折Letournel-Judet分类的标准模拟出各型骨折,各骨折块用不同的颜色表示.对骨折模型进行截图保存,并输出影片模式.5名骨科医师和10名医学生对比髋臼骨折Letournel-Judet分类三维骨折模型与二维平面示意图,给予初步评价.结果髋臼骨折Letournel-Judet分类三维模型形态逼真,立体感强,具有良好的视觉效果,可以从任意的方位和角度观察和截图,相对应的影片可以360°旋转观看骨折情况.4名骨科医师和9名医学生认为三维数字骨折模型更有利于理解骨折分型. 结论 髋臼骨折Letournel-Judet分类的三维数字仿真模型具有直观、立体、逼真、动态等特点,有利于临床工作及医学教学.

abstractsObjective To establish three-dimensional (3D) simulation model of acetabular fracture based on Letournel-Judet classification and analyze its significance. Methods Pelvis of one healthy female volunteer was scanned with 16 slice spiral CT. Dicom format data were processed by software Mimics 10.01 to reconstruct 3D model of hip bone. Different fracture types were simulated based on Letournel-Judet classification of acetabular fracture. The fracture fragments were displayed with different color. Screen-captures of fracture model from different directions were saved and video mode of fracture model was exported. Five orthopedic doctors and 10 medical students were employed to compare 3D fracture model with two-dimensional planar schematic diagram and made preliminary evaluation. Results The 3D simulation model of acetabular fracture had realistic form and stereoscopic sense, with satisfactory visual effect. The fracture could be observed and charted from optional direction and angle. Fracture model could rotate for 360° in the corresponding video mode. Four orthopedic doctors and nine medical students considered that 3D simulation model of acetabular fracture was helpful for understanding fracture classification. Conclusion The 3D simulation model of acetabular fracture is intuitive, realistic and dynamic and is helpful for clinical work and medical teaching.