股骨颈骨折内固定方式优选方法研究  

Optimal Selection System of Internal Fixation Methods for Femoral Neck Fracture

作　　者：王沫楠[1] 高键[1] 徐雯雯[1] 张凯[1] 

机构地区：[1]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2016年第1期1-5,共5页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(61272387);黑龙江省高校长江学者后备项目(2013CJHB007);黑龙江省杰出青年科学基金(JC201302)

摘　　要：为了避免在股骨颈骨折手术中人为选择内固定方式产生的不良后果,满足用PC机优选内固定方式的需要,从生物力学的角度出发,基于有限元法开发了集合前处理、求解、后处理于一体的股骨颈骨折内固定方式优选程序,目的是将最优固定效果下的紧固螺钉数量、内固定角度及组合方式提供给医生施术.该系统在分析了股骨与载荷之间的力学关系的基础上,运用参数化的思想,建立个体化的股骨有限元模型和骨折内固定模型,并应用有限元法进行模型解算,得到相应内固定方式下的股骨头下沉位移、股骨头横向位移、股骨头扭转位移、股骨头总位移及骨折面之间最大断裂位移的解算结果,并根据评价算法优选出最合理的内固定方案.为临床选择内固定方式提供有效的定量参考.In order to avoid the adverse consequences caused by anthropogenic factor in the femoral neck fracture surgery and meet the requirements of selecting the most reasonable internal fixation way by using PC, from the viewpoint of biomeehanics, an optimal selection system of internal fixation methods for femoral neck facture is established which integrates preprocessing, solving and post-processing. The system can provide the number of tightening screw, the fixed angle and combinatorial way of the optimal result to doctors to perform operations. The individual finite element model and internal fixation model are established based on biomechanical relation between femur and load and parameter ideas. Following evaluation parameters are got based finite element analysis： sinking displacement, lateral displacement, torsional displacement, sum displacement of femur head and gap displacement between fracture surfaces. According to the results, the evaluation algorithm is complied to select the optimal internal fixation method.

关 键 词：股骨颈骨折 有限元法 面向对象 参数化 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]