基于有限元分析的股骨干骨折内固定系统多因素的正交试验设计

发布时间：2018-05-20 06:01

本文选题：股骨干骨折 + 锁定钢板　；参考：《生物医学工程研究》2017年02期

【摘要】：评估股骨干骨折内固定系统中三个因素对内固定系统稳定性的影响,为临床治疗提供指导。采用正交试验方法设计试验方案,分别对股骨干骨折内固定系统的三因素三水平上进行生物力学有限元分析,得出各组试验的三项考察指标数值,并结合正交试验权矩阵分析方法进行数据分析。结果显示,影响内固定系统稳定性的三因素三水平有着不同权重。研究结果表明,三因素对内固定系统稳定性影响的主次顺序为螺钉直径、锁定钢板与股骨表面间距、骨折处填充物弹性模量,正交试验的最佳方案为螺钉直径为4 mm,锁定钢板与股骨表面间距为3 mm,骨折处填充物弹性模量为15 MPa。
[Abstract]:To evaluate the influence of three factors on the stability of internal fixation system for femoral shaft fracture and provide guidance for clinical treatment. The orthogonal test method was used to design the experimental scheme. The biomechanical finite element analysis was carried out on three factors and three levels of the internal fixation system of femoral shaft fracture, and the three index values of each group of tests were obtained. Combined with orthogonal test weight matrix analysis method for data analysis. The results show that the three factors and three levels which affect the stability of the internal fixation system have different weights. The results showed that the main and secondary factors affecting the stability of the internal fixation system were screw diameter, the distance between the locking plate and the femoral surface, and the elastic modulus of the filler at the fracture. The optimum design of orthogonal test was that the diameter of screw was 4 mm, the distance between locking plate and femoral surface was 3 mm, and the elastic modulus of the filler at fracture was 15 MPA.
【作者单位】：河海大学机电工程学院;常州奥斯迈医疗器械有限公司;
【基金】：中央高校基本科研业务费专项资金资助项目(2016B49614) 江苏省研究生培养创新工程项目(KYLX16_0708) 江苏省科技成果转化专项资金项目(BA2012061)
【分类号】：R683

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