Homogeneous and Heterogeneous Modeling of Patient-Specific Hip Implant Under Static and Dynamic Loading Condition Using Finite Element Analysis

Ravikant,; Mittal, Vinod Kumar; Gupta, Vikas

doi:10.1007/s40033-023-00447-0

Cited by 3 publications

(1 citation statement)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, the displacement values for CoCr Alloy Profile 2 were 61% and 68% lesser when compared to Profile 1 and Profile 3 for the same CoCr Alloy material. In this study, only two materials are used for the stem; however, other studies have included stems of different materials [39,41]. The stem considered in this study was solid, but the possibility of porous femoral stems has been explored [42].…”

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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

show abstract

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

Design of titanium uncemented femoral stems for hip prosthesis suitable for the Colombian young adult population

Galiano

Mejia

Ortiz

et al. 2023

Computer Methods in Biomechanics and Biomedical Engineering

View full text Add to dashboard Cite

Investigating Risk Factors and Magnetic Resonance Imaging (MRI)-based Grading of Subchondral Incomplete Fracture (SIF) of Medial Femoral Condyle

Dong

Zhang

et al. 2023

CMIR

View full text Add to dashboard Cite

Background: Subchondral insufficiency fractures (SIF) of the knee joint are prevalent in osteoporosis patients over the age of 55. Early diagnosis of SIF fracture of the medial femoral condyle is crucial for delaying disease progression, early therapy, and potential disease reversal. Magnetic resonance imaging (MRI) is useful in detecting SIF, which is often undetectable on initial radiographs. This study aimed at developing a grading system for subchondral insufficiency fractures (SIF) based on MRI to predict outcomes and evaluate risk factors. Methods: In this study, MRI was used to examine SIF risk variables in the medial condyle of the femur to help clinicians diagnose, treat, and delay the condition. A total of 386 patients with SIF from 2019 to 2021 were retrospectively analyzed and divided into 106 patients in the disease group and 280 patients in the control group according to whether they had SIF. The lesion site, meniscus, ligament, and other parameters were evaluated and compared. At the same time, a grading system was introduced to stratify and statistically analyze the size of the lesion area, the degree of bone marrow edema (BME), meniscus tears, and other parameters in the patients. Results: Most SIF were low-grade (LG) fractures, and the predictors of LG and high-grade (HG) fractures included heel tear (P =0.031), degree of medial malleolus degeneration (P < 0.001), advanced age (P < 0.001), and lesion size (P < 0.001). The prognostic factors that showed significant differences between the two groups included age (P =0.027), gender (P =0.005), side (P =0.005), medial tibial plateau injury (P < 0.0001), femoral medullary bone marrow edema (P < 0.0001), medial tibial plateau bone marrow edema (P < 0.0001), meniscus body partial injury (P =0.016), heel tear (P =0.001), anterior cruciate ligament injury (P =0.002), and medial collateral ligament injury (P < 0.0001). Conclusion: This current study proposed an MRI-based grading system for inferior condylar fractures of the femur, in which HG inferior condylar fractures are associated with severe medial malleolus degeneration, advanced age, lesion size (correlation), and meniscus heel tears.

show abstract

Homogeneous and Heterogeneous Modeling of Patient-Specific Hip Implant Under Static and Dynamic Loading Condition Using Finite Element Analysis

Cited by 3 publications

References 51 publications

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

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

Design of titanium uncemented femoral stems for hip prosthesis suitable for the Colombian young adult population

Investigating Risk Factors and Magnetic Resonance Imaging (MRI)-based Grading of Subchondral Incomplete Fracture (SIF) of Medial Femoral Condyle

Contact Info

Product

Resources

About