Hip prosthetic implants represent a consolidated and successful solution to re-store functional gait in patients affected by a wide range of disease including os-teoarthritis degeneration processes, cancer effects, osteoporosis, traumatic injuries. While at the beginning of the worldwide dissemination of this joint replacement methodology the target patients were mainly part of a quite old population, char-acterized by moderate physical activity and only asking for restoring of an accept-able quality of life and of functional gait and standing, the scenario significantly changed along the years. Nowadays, hip implants are also used to treat young and active patients; moreover, the amount of expected life years is more and more in-creasing; and, last but not least, the average body mass of western populations is increasing as well. As an overall consequence of the above changes, hip implants need to be highly performing: they have to cope with many years of repetitive high stresses not only due to regular locomotor daily activities but also to sports, excessive loading, wear and ageing effects. It is thus of extremely relevance for Researchers, Industry, Health Authorities and Users, to gain deeper and deeper knowledge of mechanical properties and performance of hip prosthesis compo-nents, and behavior of the musculo-skeletal system which hosts the implant. Po-tentially dangerous conditions should be clearly identified and investigated so as to prevent implant structural failure, being implant revision highly demanding for patients and health structures in terms of worsening of health status and increase of overall assistance costs. The present chapter investigates the potentialities of re-search studies in the field of hip implants biomechanics which rely on a synergy between FE modeling and experimental mechanical fatigue tests and whose main goal is to infer about related risks. An example of the implemented methodology is described, and few practical applications are reported, analyzed and commented from clinical, biomechanical and regulatory point of view.

Hip Prostheses Computational Modeling: FEM simulations integrated with fatigue mechanical tests / Ilaria, Campioni; Gianluca, Notarangelo; Andreaus, Ugo; Angelo, Ventura; Claudia, Giacomozzi. - STAMPA. - 4(2012), pp. 81-108. - LECTURE NOTES IN COMPUTATIONAL VISION AND BIOMECHANICS. [10.1007/978-94-007-4270-3_5].

Hip Prostheses Computational Modeling: FEM simulations integrated with fatigue mechanical tests.

ANDREAUS, Ugo;
2012

Abstract

Hip prosthetic implants represent a consolidated and successful solution to re-store functional gait in patients affected by a wide range of disease including os-teoarthritis degeneration processes, cancer effects, osteoporosis, traumatic injuries. While at the beginning of the worldwide dissemination of this joint replacement methodology the target patients were mainly part of a quite old population, char-acterized by moderate physical activity and only asking for restoring of an accept-able quality of life and of functional gait and standing, the scenario significantly changed along the years. Nowadays, hip implants are also used to treat young and active patients; moreover, the amount of expected life years is more and more in-creasing; and, last but not least, the average body mass of western populations is increasing as well. As an overall consequence of the above changes, hip implants need to be highly performing: they have to cope with many years of repetitive high stresses not only due to regular locomotor daily activities but also to sports, excessive loading, wear and ageing effects. It is thus of extremely relevance for Researchers, Industry, Health Authorities and Users, to gain deeper and deeper knowledge of mechanical properties and performance of hip prosthesis compo-nents, and behavior of the musculo-skeletal system which hosts the implant. Po-tentially dangerous conditions should be clearly identified and investigated so as to prevent implant structural failure, being implant revision highly demanding for patients and health structures in terms of worsening of health status and increase of overall assistance costs. The present chapter investigates the potentialities of re-search studies in the field of hip implants biomechanics which rely on a synergy between FE modeling and experimental mechanical fatigue tests and whose main goal is to infer about related risks. An example of the implemented methodology is described, and few practical applications are reported, analyzed and commented from clinical, biomechanical and regulatory point of view.
2012
Biomedical Imaging and Computational Modeling in Biomechanics
9789400742697
9789400742703
finite element method (fem) finite element analysis (fea); mechanical testing; fatigue; iso standard; hip prosthesis
02 Pubblicazione su volume::02a Capitolo o Articolo
Hip Prostheses Computational Modeling: FEM simulations integrated with fatigue mechanical tests / Ilaria, Campioni; Gianluca, Notarangelo; Andreaus, Ugo; Angelo, Ventura; Claudia, Giacomozzi. - STAMPA. - 4(2012), pp. 81-108. - LECTURE NOTES IN COMPUTATIONAL VISION AND BIOMECHANICS. [10.1007/978-94-007-4270-3_5].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/526393
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