Musculoskeletal-based finite element analysis of femur after total hip replacement

Meena, Vijay Kumar; Kumar, Mohit; Pundir, Amit; Singh, Suman; Goni, Vijay; Kalra, Pramila; Sinha, R. K.

doi:10.1177/0954411916638381

Cited by 11 publications

(8 citation statements)

References 28 publications

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“…All the materials were regarded as linear, elastic and homogeneous. 49 The titanium alloy, stainless steel, bone cement and cortical bone were considered to be isotropic, while the cancellous bone was considered to be transverse isotropic. The mechanical properties of the materials used in the analysis were taken from previously published studies 24,27,50 and are given in Table 2.…”

Section: Methodsmentioning

confidence: 99%

Experimental and numerical static failure analyses of total hip replacement interfaces

Koçak

Şekercı́oǧlu

2019

Proc Inst Mech Eng H

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In joint replacement surgery, the critical point in the success of cemented implants is the stabilisation between the implant and bone. The stronger the interlocking achieved on both the implant–cement interface and the cement–bone interface, the more durable is the surgical intervention. However, to date, it has not been possible to prevent aseptic loosening of hip implants, thus making a revision surgery necessary after a period of about 10 years. In this study, the tensile and shear strengths of the implant–cement and cement–bone interfaces and factors which can affect these strengths such as sandblasting parameters and implant material choice were investigated experimentally. The stresses on the total hip replacement interfaces were then determined via finite element analysis and the findings compared with the strength values obtained from the mechanical tests. The total hip replacement prosthesis was designed using SolidWorks software, and material properties and boundary conditions were modelled with the ANSYS Workbench software. Stresses due to the loads applied to the femur head had exceeded the highest tensile and shear strength values obtained by the classical test methods and damaged the contact surfaces in some regions. In light of these findings, the damage sites of the interfaces were determined.

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Section: Methodsmentioning

confidence: 99%

Experimental and numerical static failure analyses of total hip replacement interfaces

Koçak

Şekercı́oǧlu

2019

Proc Inst Mech Eng H

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“…20 Screws were presumed to be tied with the femur and the locking plate. 19 The hip joint center node was constrained, 19,30–32 and loadings included 394 femoral muscle forces, knee and hip joint forces and moments from the patient-specific walking MSK simulation. Muscle forces, joint forces and moments were applied at muscle attachment nodes and joint nodes, respectively, as shown in Figure 1(d).…”

Section: Methodsmentioning

confidence: 99%

“…The results of the MSK walking simulation were output in 192 s. For each, a quasi-static FEA 19,20,30 of the femur and fixation plate assembly was implemented. First, a comparative study between PSFLP and TFLP (Figure 2(a) and (b)) was carried out with 4.75-mm thickness, Ti-6Al-4V material, bicortical fixation, 2-mm fracture gap and 0-mm interface gap.…”

Section: Methodsmentioning

confidence: 99%

“…20 Screws were presumed to be tied with the femur and the locking plate. 19 The hip joint center node was constrained, 19,[30][31][32] and loadings included 394 femoral muscle forces, knee and hip joint forces and moments from the patient-specific walking MSK Table 3. 27,42 1.061 n = 0.225 4-weekly healing callus 21 0.00019 simulation.…”

Section: Finite Element Modelmentioning

confidence: 99%

“…MSK multibody dynamics (MBD) simulation as an effective approach can calculate the patient-specific in vivo loadings associated with daily activities. 19,20,30,31 Wagner et al 31 used the in vivo loadings obtained from the MSK MBD simulation as the boundary conditions of the FEA to calculate femoral stresses during walking. The effects of thickness and material on the mechanical property of a traditional femoral locking plate (TFLP) were investigated using a combined MSK MBD and FEA modeling under the loading conditions of a human cycling.…”

Section: Introductionmentioning

confidence: 99%

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Parametric study of patient-specific femoral locking plates based on a combined musculoskeletal multibody dynamics and finite element modeling

Fan

Chen

Zhang

et al. 2017

Proc Inst Mech Eng H

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A combined musculoskeletal multibody dynamics and finite element modeling was performed to investigate the effects of design parameters on the fracture-healing efficiency and the mechanical property of a patient-specific anatomically adjusted femoral locking plate. Specifically, the screw type, the thickness and material of the locking plate, the gap between two femoral fragments (fracture gap) and the distance between bone and plate (interface gap) were evaluated during a human walking. We found that the patient-specific locking plate possessed greater mechanical strength and more efficient fracture healing than the corresponding traditional plate. An optimal patient-specific femoral locking plate would consist of bicortical locking screws, Ti-6Al-4V material and 4.75-mm plate thickness with a fracture gap of 2 mm and an interface gap of 1 mm. The developed patient-specific femoral locking plate based on the patient-specific musculoskeletal mechanical environment was more beneficial to fracture rehabilitation and healing. The patient-specific design method provides an effective research platform for designing and optimizing the patient-specific femoral locking plate under realistic in vivo walking conditions, which can be extended to the design of other implants as well as to other physiological loading conditions related to various daily activities.

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Mechanical analysis of a PEEK titanium alloy macro-composite hip stem by finite element method

Guner,

Kocak,

Meran

2024

J Braz. Soc. Mech. Sci. Eng.

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Musculoskeletal-based finite element analysis of femur after total hip replacement

Cited by 11 publications

References 28 publications

Experimental and numerical static failure analyses of total hip replacement interfaces

Experimental and numerical static failure analyses of total hip replacement interfaces

Parametric study of patient-specific femoral locking plates based on a combined musculoskeletal multibody dynamics and finite element modeling

Mechanical analysis of a PEEK titanium alloy macro-composite hip stem by finite element method

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