Finite element analysis of intramedullary fixation nailing system for femur bone

Abstract

The human skeletal system consists of 206 bones. The strongest newlineand the longest bone in the human body is the femur. It is present in the newlinehuman thigh. This research attempts to develop a novel implant design for newlinefemur. Finite Element Analysis (FEA) models of long bones were newlinereconstructed using Computed Tomography (CT). This information newlineincorporates both three dimensional structure and bone density. The exact newlinegrasp of geometry and appropriate assignment of material properties is vital newlinefor the performance of such FE models. FEA is one of the most significant newlinemethods to observe the structural stress, strain and displacement. FEA is newlinebroadly applied in several engineering applications consisting the Orthopaedic newlineBiomechanics to compute the parameters and FEA helps in implant design in newlinehuman bones. The actual mechanical testing such as Three Point Bending newlineTest and torsional test can be simulated with high accuracy using FEA. newlineThe main goal of this research is to identify the high strain and newlinedisplacement concentration area of the femur using FEA and to compare the newlineresults with experimental results from the literature. It was found that high newlinecompressive stress and strain were developed on the neck of the femur. The newlineexperimental results and those obtained using FEA were almost same. This newlineproved that FEA can be carried out in the place of experimental analysis. This newlineproposed method plays a significant role in describing the fracture newlinemorphology developed from loading mechanisms of bending at different newlineorientations over femur bone using Three Point Bending Analysis (TPBA) newlinetechnique. newline