辅助治疗股骨干骨折缺损数值模拟分析
Numerical Simulation Analysis of Adjuvant Treatment of Femoral Shaft Fracture Defects
彭春雷 1彭彦龙 1陈建刚 2杨立峰3
作者信息
- 1. 陕西理工大学机械工程学院,陕西 汉中 723001
- 2. 陕西理工大学机械工程学院,陕西 汉中 723001;西安交通大学机械工程学院,陕西,西安 710049
- 3. 西安交通大学附属汉中3201 医院骨科 陕西 汉中 723000
- 折叠
摘要
针对股骨干断裂骨折患者手术治疗康复治疗问题,使用医学影像处理和逆向工程技术,依据股骨CT扫描数据,重构股骨干 2mm横断缺损和股骨干 10°楔形缺损断裂模型.为了分析接骨板、螺钉应力、应变变化规律及股骨整体应力集中状况,在700N轴向载荷和15N·m扭转载荷条件下,建立锁定型和锁定加压型接骨板数值模拟系统进行数值模拟分析.结果发现:锁定加压型内固定系统适用于股骨干2mm横断模型,螺钉不易发生失效断裂;锁定型内固定系统适用于股骨干10°楔形缺模型,螺钉未出现失效断裂现象,便于患者康复.
Abstract
Aiming at the problem of surgical treatment and rehabilitation for patients with femoral shaft fracture,medical image processing,and reverse engineering technology were used to reconstruct the fracture model of the 2mm transverse defect and 10°wedge defect of the femoral shaft according to the CT scan data of femur.To analyze the stress and strain variation of the bone plate and screw and the overall stress concentration of the femur,the numerical simulation system of locking and locking compression plate was established under the condition of 700 N axial load and 15 N·m torsional load.The results show that the locking compression internal fixation system is suitable for the femoral shaft 2mm transverse model,and the screw is not easy to fail.The locking internal fixation system is suitable for the 10°wedge-shaped defect model of the femoral shaft,and there is no failure or fracture of the screw,which is convenient for the rehabilitation of the patients.
关键词
股骨干骨折/断裂模型/接骨板/数值模拟分析/生物力学分析Key words
Fracture of femoral shaft/Fracture model/Bone plate/Numerical simulation analysis引用本文复制引用
基金项目
国家自然科学基金青年基金(51505268)
陕西省科技厅一般项目研发计划(2022GY-257)
陕西省教育厅重点科学研究项目(20JS020)
出版年
2024
NETL
NSTL
万方数据