Orthogonal Test Design of the Internal Fixation of Femoral Fractures System Multi-factor based on the Finite Element Analysis
SHENG Wei
JI Aimin
CHEN Changsheng
Abstract：To evaluate the effect that the three factors of the femoral shaft fracture internal fixation system on the stability of internal fixation system, and to provide guidance for the clinical treatment.The orthogonal test design method was used to design the experiment scheme.The finite element analysis method was used to analyze the three levers biomechanical properties of the three factors of the femoral shaft fracture internal fixation system respectively, three inspection index value for each group experiment were attained.And combined with orthogonal test matrix analysis method,the data analysis was carried on.The results showed that the each levers of the three factors had different weights.The analysis results show that the primary and secondary order of the effect that three factors had on stability of the internal fixation system are screw diameter, the distance between the plate and femur surface and the elastic modulus of the fracture filling, and the best scheme of the orthogonal test is that the screw diameter is 4 mm, the distance between locking plate and femoral surface is 3 mm and fracture fillings elastic modulus is 15 MPa.
Keywords：Femoral shaft fractureLocking plateStabilityOrthogonal experimentThree factors and three levelsWeightFinite element analysis
Publication Date：2017-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：7( 146-151,158 )