Use of Finite Element Analysis to Predict Type of Bone Fractures and Fracture Risks in Femur due to Osteoporosis

Reddy, M Vijay Kumar; Ganesh, B. N. R.; Bharathi, Kck; ChittiBabu, P

doi:10.4172/2329-9509.1000180

Cited by 7 publications

(6 citation statements)

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“…While classified according to the anatomic region, it can be divided into three types, i.e. : i) fractures in the femoral head area, commonly called hip fractures, ii) fractures in the middle area (femoral shaft fracture), and iii) fractures in the knee area, or referred to as supracondylar femur fracture [9]. As for the femural shaft fractures, there are many types of fractures that possibly occur, such as transverse, linear, nondisplaced oblique, displaced oblique, spiral, greenstick, and comminuted [10].…”

Section: Methodsmentioning

confidence: 99%

Deformation Analysis of Internal Fixation Plate on Femur Bone Fracture: A Study Case on Local Raw

Syaifudin

Kuswanto

Prasetyo³

2020

KEM

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In the case of femur bone fracture, internal fixation is usually applied for the treatment due to the convenience and amenities of follow-up care. Due to a high demand for internal fixation implants in Indonesia, causing Pelopor Teknologi Implantindo Inc. (PTI Inc., Mojokerto - Indonesia) produces conventional implant material made from annealed local raw material of 316L stainless steel, with a yield strength of 317 MPa and ultimate tensile strength of 580 MPa. Compared to implant material in ASTM F138, it has a little higher value of both yield and ultimate tensile strength. To determine the effects of material type, normal stresses will be used to evaluate the fractured bone, while von Mises stresses will be used to analyze the strength of fixation plate. Besides, influence of material variation to the bone healing process is also discussed. Transversal-type fracture is chosen for fracture modeling of femoral shaft. The loading is taken from body weight of Asians, which is applied at femur head. The simulation result indicates that in the case of conventional fixation plate, there is no significant influence on the bone healing caused by different material type.

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Section: Methodsmentioning

confidence: 99%

Deformation Analysis of Internal Fixation Plate on Femur Bone Fracture: A Study Case on Local Raw

Syaifudin

Kuswanto

Prasetyo³

2020

KEM

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“…This is related to bone demineralization. Increased bone porosity is caused by several factors, including decreased bone mass (BMD), decreased bone mechanical strength and Young's modulus and Poisson's ratio [19].…”

Section: Bone Density and Limit Of Bone Elasticitymentioning

confidence: 99%

The Simulation of Mechanical Stimulation Effect on Bone Elasticity Limit Based on Finite Element Method (Fem)

et al. 2021

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Osteoporosis is a disease affecting bones which is characterized by decreased bone density; bones become porous and susceptible to fractures. Osteoporosis occurs because of an imbalance during bone remodeling phase between resorption and formation processes. This study aims to simulate the effects of mechanical stimulations on the femoral bone elasticity limit. It is hoped that these mechanical stimuli can provide information on bone elasticity limits. Initially, we constructed the femur in two layers using triangular elements. Then we entered the bone properties (Young’s modulus and Poisson’s ratio) based on the age of the femur. After that we calculated the value of the stress, strain, and strain rate in the reversal phase. Next, we calculated the bone density using the thermodynamic equation and calculation of the bone elasticity limit using particle swarm optimization (PSO) methods. The value of stress and strain caused by walking is higher than the value of stress and strain when standing still. In this case, the difference in activity results an increase in stress by 33.82% and an increase in strain and strain rate by 34.57%. Based on these simulation results, it can be concluded that mechanical stimulation can increase the limit of bone elasticity to 2.99% in cortical bone and 0.975% in trabecular bone. Bone elasticity limit can be used to determine the level of osteoporosis that occurs. The higher value of the bone elasticity, the smaller the possibility of osteoporosis.

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“…It considered various physical movements such as standing, walking, running, and jumping. While, Reddy et al 41 has got the stress ranges from 24.1 to 65.6 MPa corresponding to the age of persons (N = 10) in between 27 and 84 years. However, Fonseca et al 42 have used an isotropic and orthotropic model to determine the maximum stress as 22.60 MPa in femur.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis (FEA) of femur to predict biomechanical properties and its validation

Gujar¹,

Warhatkar

Kale

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The aim of this preliminary study is to predict the biomechanical properties as strain of the femur using computed tomography medical image-based finite element analysis. Further, the finite element results were compared with the experimental results for validation purpose. The main objective of the study was to establish and validate a finite element model used to analyse biomechanical properties. For this, four sheep femur specimens were used to predict normal strain in x-x direction. Computed tomography scans were taken from each femur sample. Subsequently, an accurate image-based 3D model of each femur specimen was segmented and reconstructed with its material properties. Furthermore, the experimental test was performed at 8° bone inclination in the coronal plane and a compressive load was applied at displacement rate of 0.2 mm/s to the femur head in a vertical downward direction until fracture. Consequently, the numerical results of predicted normal strain were compared with the experimental measured normal strain. The average deviation between finite element and experimental results was found to be −11.11%–20.10% in strains. Hence, it is concluded that the results obtained using finite element analysis are in good agreement with the experimental results.

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Use of Finite Element Analysis to Predict Type of Bone Fractures and Fracture Risks in Femur due to Osteoporosis

Cited by 7 publications

References 0 publications

Deformation Analysis of Internal Fixation Plate on Femur Bone Fracture: A Study Case on Local Raw

Deformation Analysis of Internal Fixation Plate on Femur Bone Fracture: A Study Case on Local Raw

The Simulation of Mechanical Stimulation Effect on Bone Elasticity Limit Based on Finite Element Method (Fem)

Finite element analysis (FEA) of femur to predict biomechanical properties and its validation

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