Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier

In the total hip prosthesis, according to different positions of the patient, there are a variety of loads acting on femoral head which generate stress concentration in the cement called polymethylmethacrylat (PMMA) and consequently in the interfaces stem/cement/bone. This load transfer can provoke...

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Autores principales: Allaoua Fadela, Lebbal Habib, Belarbi Abderrahmane
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Lenguaje:EN
Publicado: Gruppo Italiano Frattura 2021
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Acceso en línea:https://doaj.org/article/eced6ec6428e4d3cb3697b1d59e15f3c
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spelling oai:doaj.org-article:eced6ec6428e4d3cb3697b1d59e15f3c2021-11-26T10:56:03ZFinite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier1971-8993https://doaj.org/article/eced6ec6428e4d3cb3697b1d59e15f3c2021-06-01T00:00:00Zhttps://www.fracturae.com/index.php/fis/article/view/3099https://doaj.org/toc/1971-8993 In the total hip prosthesis, according to different positions of the patient, there are a variety of loads acting on femoral head which generate stress concentration in the cement called polymethylmethacrylat (PMMA) and consequently in the interfaces stem/cement/bone. This load transfer can provoke loosening of the implant from the femoral bone. This paper focused on optimal stress distribution in the total hip prosthesis and devoted to the development of a redesigned prosthesis type in order to minimize stress concentration in the cement. This study investigated the effect of elastomeric stress barrier incorporated between the stem and femoral head using 3D-finite element analysis. This proposed implant provoked lower load transfer in the cement due to the elastomeric effect as stress absorber.  However, the proposed model provided an acceptable solution for load transfer reduction to the cement. This investigation permitted to increase the service life of the total hip prosthesis avoiding the loosening. Allaoua Fadela Lebbal HabibBelarbi Abderrahmane Gruppo Italiano FratturaarticleHip prosthesisCementStress concentrationStress barrierFinite element method (FEM)Mechanical engineering and machineryTJ1-1570Structural engineering (General)TA630-695ENFrattura ed Integrità Strutturale, Vol 15, Iss 57 (2021)
institution DOAJ
collection DOAJ
language EN
topic Hip prosthesis
Cement
Stress concentration
Stress barrier
Finite element method (FEM)
Mechanical engineering and machinery
TJ1-1570
Structural engineering (General)
TA630-695
spellingShingle Hip prosthesis
Cement
Stress concentration
Stress barrier
Finite element method (FEM)
Mechanical engineering and machinery
TJ1-1570
Structural engineering (General)
TA630-695
Allaoua Fadela
Lebbal Habib
Belarbi Abderrahmane
Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
description In the total hip prosthesis, according to different positions of the patient, there are a variety of loads acting on femoral head which generate stress concentration in the cement called polymethylmethacrylat (PMMA) and consequently in the interfaces stem/cement/bone. This load transfer can provoke loosening of the implant from the femoral bone. This paper focused on optimal stress distribution in the total hip prosthesis and devoted to the development of a redesigned prosthesis type in order to minimize stress concentration in the cement. This study investigated the effect of elastomeric stress barrier incorporated between the stem and femoral head using 3D-finite element analysis. This proposed implant provoked lower load transfer in the cement due to the elastomeric effect as stress absorber.  However, the proposed model provided an acceptable solution for load transfer reduction to the cement. This investigation permitted to increase the service life of the total hip prosthesis avoiding the loosening.
format article
author Allaoua Fadela
Lebbal Habib
Belarbi Abderrahmane
author_facet Allaoua Fadela
Lebbal Habib
Belarbi Abderrahmane
author_sort Allaoua Fadela
title Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
title_short Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
title_full Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
title_fullStr Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
title_full_unstemmed Finite Element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
title_sort finite element analysis of stress state in the cement of total hip prosthesis with elastomeric stress barrier
publisher Gruppo Italiano Frattura
publishDate 2021
url https://doaj.org/article/eced6ec6428e4d3cb3697b1d59e15f3c
work_keys_str_mv AT allaouafadela finiteelementanalysisofstressstateinthecementoftotalhipprosthesiswithelastomericstressbarrier
AT lebbalhabib finiteelementanalysisofstressstateinthecementoftotalhipprosthesiswithelastomericstressbarrier
AT belarbiabderrahmane finiteelementanalysisofstressstateinthecementoftotalhipprosthesiswithelastomericstressbarrier
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