Dynamic Analysis of Hip Prosthesis Using Different Biocompatible Alloys

Joshi, Tanuja; Sharma, Rahul; Mittal, Vinod Kumar; Gupta, Vikas; Krishan, Gopal

doi:10.1115/1.4053417

Cited by 12 publications

(6 citation statements)

References 36 publications

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“…The gait loading in the current study, as shown in Figure 3 only considers the vertical force without the range of motion as was conducted by Jamari et al [ 35 ]. This is because the finite element model of hard-on-hard bearings currently uses 2D axisymmetric, making it impossible to adopt triaxial motion during gait loading [ 37 ]. For the convenience of the computational simulation procedures, the gait loading is divided into 32 phases as referred from previous study [ 27 , 34 , 38 ] consisting of two main groups, namely the stance phase (60% of gait loading) and the swing phase (40% of gait loading) [ 39 ].…”

Section: Methodsmentioning

confidence: 99%

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

et al. 2023

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Due to polymeric wear debris causing osteolysis from polymer, metal ions causing metallosis from metal, and brittle characteristic causing fracture failure from ceramic in the application on bearing of total hip prosthesis requires the availability of new material options as a solution to these problems. Polycrystalline diamond (PCD) has the potential to become the selected material for hard-on-hard bearing in view of its advantages in terms of mechanical properties and biocompatibility. The present study contributes to confirming the potential of PCD to replace metals and ceramics for hard-on-hard bearing through von Mises stress investigations. A computational simulation using a 2D axisymmetric finite element model of hard-on-hard bearing under gait loading has been performed. The percentage of maximum von Mises stress to respective yield strength from PCD-on-PCD is the lowest at 2.47%, with CoCrMo (cobalt chromium molybdenum)-on-CoCrMo at 10.79%, and Al2O3 (aluminium oxide)-on-Al2O3 at 13.49%. This confirms that the use of PCD as a hard-on-hard bearing material is the safest option compared to the investigated metal and ceramic hard-on-hard bearings from the mechanical perspective.

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Section: Methodsmentioning

confidence: 99%

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

et al. 2023

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“…The FEM technique [27][28][29][30] is a fast and efficient technique widely employed for solving complex shape analysis. Additionally, these techniques are used to assist and optimize the design of hip prostheses and provide an understanding of their mechanical behavior under multiple loading constraints [31][32][33]. The finite element model of the prosthesis assembly is depicted in Figure 1.…”

Section: Materials and Methods Finite Element Modelingmentioning

confidence: 99%

Dynamic Fatigue Behavior of Hip Joint under Patient Specific Loadings

Joshi

Sharma²,

Mittal³

et al. 2022

Int. J. Automot. Mech. Eng.

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In the present work, a finite element model with standard Charnley’s implant of hip joint is considered for investigation under different patient-specific dynamic activities obtained in vivo. The application of forces occurred due to human movement, which ultimately generates dynamic stress over the prosthesis. Anatomical loading constraints are more clinically relevant than ISO standards. The performance of different materials for each suitable gait pattern is analyzed using commercial finite element code. A liner isotropic material Ti-6Al-4V and PMMA material is utilized for an implant and bone cement, respectively. However, cortical and cancellous bone are treated as non-isotropic in nature. Clinically obtained dynamic forces and torque are being used for the present investigation. Additionally, Goodman, Solderberg, Gerber and ASME elliptic fatigue theories were considered to obtain the fatigue life of the implant. The most strenuous activity in terms of stress and strain are, going downstairs followed by going upstairs, walking, standing up and sitting down, which have been found in good agreement with the safety factor for every activity. Additionally, the life expectancy of the implant was a minimum of 23 years under every dynamic motion. The present work exhibits the greater relevance in terms of the life expectancy of implant for the pre-surgical analysis before implanted in vivo.

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“…To validate the computational model, the stresses induced and displacements during the walking cycle are compared with previously published literature [39]. Only the stem is used to validate the computational model before furthering the analysis of the complete hip implant.…”

Section: Validation Of Computational Modelmentioning

confidence: 99%

“…Only the stem is used to validate the computational model before furthering the analysis of the complete hip implant. Joshi et al [39] have used an implant stem model considering six different biocompatible alloy materials. For the validation of the current work, we used materials like Ti-6Al-4V and Co Cr alloy for the stems.…”

Section: Validation Of Computational Modelmentioning

confidence: 99%

“…For the validation of the current work, we used materials like Ti-6Al-4V and Co Cr alloy for the stems. It can be noted from the works of Joshi et al [39] that only the forces acting on the stems are used, and the moment acting on the stem is neglected. However, while validating, we consider both the forces and moments acting on the implants.…”

Section: Validation Of Computational Modelmentioning

confidence: 99%

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Finite element analysis of elliptical shaped stem profile of hip prosthesis using dynamic loading conditions

Corda,

K N,

Bhat N

et al. 2023

Biomed. Phys. Eng. Express

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Patient-specific dynamic loadings are seldom considered during the evaluation of hip implants. The primary objective of this study is to check for the feasibility of the use of UHMWPE as the material for an acetabular cup over CoCr Alloy that is reported to produce a squeaking sound after replacement. An elliptical shaped stem with three different cross-sectional profiles is considered for simulation. Using a commercial finite element method, patient-specific dynamic forces were applied for the quantitative analysis. The loading and boundary conditions are used as per ISO and ASTM standards. The walking gait cycle is used with two widely used biocompatible materials: titanium and cobalt-chromium. Initially, only the stem is considered for the analysis to finalize the best out of the three profiles, along with the better material for the stem. Later the complete implant is used for the analysis. Profile 1 exhibits 1.25 and 1.17 times greater stress than Profile 2 for CoCr Alloy and Ti–6Al–4V, respectively. Similarly, Profile 3 displays stresses 1.26 and 1.25 times greater than Profile 2 for CoCr Alloy and Ti–6Al–4V, respectively. Comparatively, displacement in stem Profile 2 is 1.75 times higher in Ti–6Al–4V than CoCr Alloy. The full implant displacement at 14% gait cycle is 1.15% higher for the CoCr-acetabular column material combination when compared to UHMWPE. It can be concluded that UHMWPE can be used as the acetabular cup material instead of CoCr for the Profile 2 elliptical shaped hip implant to prevent squeaking after replacement

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Dynamic Analysis of Hip Prosthesis Using Different Biocompatible Alloys

Cited by 12 publications

References 36 publications

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

Polycrystalline Diamond as a Potential Material for the Hard-on-Hard Bearing of Total Hip Prosthesis: Von Mises Stress Analysis

Dynamic Fatigue Behavior of Hip Joint under Patient Specific Loadings

Finite element analysis of elliptical shaped stem profile of hip prosthesis using dynamic loading conditions

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