摘要
目的:比较研究由Sawbones合成材料制作的股骨转子间不稳定骨折模型和尸体骨材料制作的股骨转子间不稳定骨折模型之间的力学性质差异。方法:采用6根Sawbones第4代合成股骨模型材料作为实验组,6根尸体股骨为对照组,采用GDKri-schak方法进行转子间截骨,使之成为4部分不稳定骨折。经过股骨近端锁定钢板固定后,进行压缩和扭转测试,测量骨折处载荷-位移,载荷-扭转角。结果:两组数据呈现良好线性趋势改变;Sawbone组与尸体骨组之间力学指标接近(P<0.05);Sawbone的标准差跨度范围明显小于尸体骨组。结论:Sawbone材料能较好的模拟人体骨骼,且比尸体骨的性质均一,力学性质稳定,取材便捷,可在骨科临床内固定材料力学测试研究中代替尸体骨骼使用。
Objective： CoMParison research the difference of 2 mechanical properties of artificial biomechanical model of intertrochan- teric unstable fractures,one is made up of synthetic materials named Sawbones and the other is made up of cadaver femoral bone. Methods： Get 6 fourth generation Sawbones as experiment group and 6 cadaver femoral bone as control group. By ilollow GD Krisehak methods , inter- trochanteric osteotomy to become four part fracture instability. After fixation with proximal femur locking compression plate, through torsional rigidity test and bending rigidity test, measure the loading displacement, and loading angle, of torsion. Results：The result of those two group test to taken on a good Linear tendency. Sawbone group approximation with cadaver group in mechanics. Sawbone S. D. scope less than cada- ver group obviously. Conclusion： Sawbones can simulate human bone well, and more stable, convenient than cadaver femoral bone, stable mechanical properties, and easy to get. Sawbone provide a new surrogate for clinic biomechanical material fixation test.
出处
《中医正骨》
2010年第5期15-18,共4页
The Journal of Traditional Chinese Orthopedics and Traumatology
关键词
髋骨折
不稳定骨折
模型替代品
Lumar Verebrae, fracture instability, model, surrogate
