Magnetic Resonance Imaging (MRI) Based Finite Element Modeling for Analyzing the Influence of Material Properties on Menisci Responses

Zheng, Ke Ke; Chen, Junning; Scholes, Corey; Li, Qing

doi:10.4028/www.scientific.net/amm.553.305

Cited by 7 publications

(8 citation statements)

References 16 publications

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“…Table 2 presents a comparison between our results and results of previous FEA studies. Similar to other studies, 62,87,88 the cartilage stress in the medial compartment was found to be larger than that in the lateral compartment, which corresponds to clinical findings showing a greater prevalence of medial OA. 92 Hence, the consistency between the results as to shear and Von Mises stresses in this work and the ones in the literature demonstrated that the current FE model is able to generate truthful results.…”

Section: Discussionsupporting

confidence: 89%

“…Several studies 48–54,57 have assumed the femur and tibia as rigid bodies because of their relatively high density and Young’s modulus compared to the cartilage and menisci in the knee joint. On the other hand, previous FEA studies 56,58–62 did not take into account the difference between cancellous and cortical bone and considered the whole bony structure of the knee joint as cortical bone. For example, Guess et al 56 developed the dynamic 3D anatomical knee joint models with sufficient computational competence for human movement simulation.…”

Section: Methodsmentioning

confidence: 99%

“…In their study, the tibia was considered as a rigid body and the femur assumed to be a linear elastic isotropic material with Young's modulus of 20 GPa and Poisson's ratio of 0.2. Moreover, in the study conducted by Zheng et al, 62 where the influence of material properties on menisci responses was investigated, the cancellous bone was neglected and the femur, the tibia and the fibula were modeled as linear elastic isotropic material. In this study, the femur, tibia, patella and fibula were assumed to be a linear elastic and isotropic material with Young's Modulus of 20 GPa, Poisson's ratio of 0.3 and density of 1600 kg/m 3 .…”

Section: Materials Propertiesmentioning

confidence: 99%

“…Most of the FEA studies on knee joint only concerned the stress distribution at both cartilage and menisci under pure axial loading. 56,62,82 In this study, we supposed that the subject under analysis had a weight of 125 kg, and a single axial force approximately to the body weight of 1250 N was applied at the coupling point of the distal surfaces of the tibia and the fibula. However, a little exception was done in order to compare the developed knee model with those available in the literature.…”

Section: Loads and Boundary Conditionsmentioning

confidence: 99%

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Finite element analysis of the effect of high tibial osteotomy correction angle on articular cartilage loading

Trad

Barkaoui

Chafra

et al. 2018

Proc Inst Mech Eng H

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Osteoarthritis is a globally common disease that imposes a considerable ongoing health and economic burden on the socioeconomic system. As more and more biomechanical factors have been explored, malalignment of the lower limb has been found to influence the load distribution across the articular surface of the knee joint substantially. In this work, a three-dimensional finite element analysis was carried out to investigate the effect of varying the high tibial osteotomy correction angle on the stress distribution in both compartments of the human knee joint. Thereafter, determine the optimal correction angle to achieve a balanced loading between these two compartments. The developed finite element model was validated against experimental and numerical results. The findings of this work suggest that by changing the correction angle from 0° to 10° valgus, high tibial osteotomy shifted the mechanical load from the affected medial compartment to the lateral compartment with intact cartilage. The Von Mises and the shear stresses decreased in the medial compartment and increased in the lateral compartment. Moreover, a balanced stress distribution between the two compartments as well as the desired alignment were achieved under a valgus hypercorrection of 4.5° that significantly unloads the medial compartment, loads the lateral compartment and arrests the progression of osteoarthritis. After comparing the achieved results against the ones of previous studies that explored the effects of the high tibial osteotomy correction angle on either clinical outcomes or biomechanical outcomes, one can conclude that the findings of this study agree well with the related clinical data and recommendations found in the literature.

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Section: Discussionsupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Materials Propertiesmentioning

confidence: 99%

Section: Loads and Boundary Conditionsmentioning

confidence: 99%

See 2 more Smart Citations

Finite element analysis of the effect of high tibial osteotomy correction angle on articular cartilage loading

Trad

Barkaoui

Chafra

et al. 2018

Proc Inst Mech Eng H

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“…Hybrid elements are mainly used when Poisson's ratio exceeds 0.48 and the material behaviour approximates nearly incompressible. 25 The element and material properties 17,18,26,27 for each component modelled are presented in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Stress response envelopes of intact tibiofemoral joint and knee osteoarthritis

Haris

Tan

2020

Proc Inst Mech Eng H

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The purpose of this study was to determine stress envelopes for an intact tibiofemoral joint and to study how they vary with knee loading, external–internal rotation, varus–valgus rotation and cartilage degradation (osteoarthritis) using the finite element method. The envelopes were presented in terms of knee flexion angle. The maximum von Mises stress for all tibiofemoral joint components increased with increasing the axial compressive force magnitude. Menisci exhibited the highest magnitude of maximum von Mises stress as compared to the femoral and tibial cartilages. In a range of flexion angles between 0° and 100°, the medial meniscus exhibited the highest maximum von Mises stress than the lateral meniscus and the stress in medial meniscus tended to increase with increasing the flexion angle. External–internal and varus–valgus rotations changed the stress distribution: higher stress on lateral compartment but lower stress on medial compartment, and conversely. The internal rotation provided more extreme effect than the external rotation. For the knee osteoarthritis, cartilage degradation (early stage) caused maximum von Mises stress to increase on the intact menisci revealing that knee osteoarthritis could also cause meniscal tear. The late osteoarthritis caused the maximum von Mises stress to increase on the calcified cartilage and subchondral bone.

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