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    The Predictive Value of Stress Shielding for Quantification of Adaptive Bone Resorption Around Hip Replacements

    Source: Journal of Biomechanical Engineering:;1997:;volume( 119 ):;issue: 003::page 228
    Author:
    J. H. Kuiper
    ,
    R. Huiskes
    DOI: 10.1115/1.2796084
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The presence of a femoral hip stem changes local mechanical signals inside the surrounding bone. In this study we examined the hypothesis that the eventual loss of bone can be estimated from the initial patterns of elastic energy deviation, as determined in FE models of the intact bone and the operated femur. For that purpose two hypothetical relations between elastic energy reduction and resorption were investigated. Their estimates of bone loss were compared to the results of iterative computer simulations. Two kinds of FE model were used, and in each stem stiffness and remodeling threshold (a measure of “biological reactivity”) were varied. Provided that reasonable values of the remodeling threshold are assumed and that the stem is firmly bonded to the bone, we found that the difference between direct estimates and simulation models was 4 percent of bone loss. It is therefore concluded that initial patterns of elastic energy deviation give a reasonable indication of expected bone loss.
    keyword(s): Stress , Bone , Hip joint prostheses , Finite element model , Signals , Simulation models , Stiffness AND Computer simulation ,
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      The Predictive Value of Stress Shielding for Quantification of Adaptive Bone Resorption Around Hip Replacements

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    http://yetl.yabesh.ir/yetl1/handle/yetl/118291
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    • Journal of Biomechanical Engineering

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    contributor authorJ. H. Kuiper
    contributor authorR. Huiskes
    date accessioned2017-05-08T23:52:45Z
    date available2017-05-08T23:52:45Z
    date copyrightAugust, 1997
    date issued1997
    identifier issn0148-0731
    identifier otherJBENDY-25976#228_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/118291
    description abstractThe presence of a femoral hip stem changes local mechanical signals inside the surrounding bone. In this study we examined the hypothesis that the eventual loss of bone can be estimated from the initial patterns of elastic energy deviation, as determined in FE models of the intact bone and the operated femur. For that purpose two hypothetical relations between elastic energy reduction and resorption were investigated. Their estimates of bone loss were compared to the results of iterative computer simulations. Two kinds of FE model were used, and in each stem stiffness and remodeling threshold (a measure of “biological reactivity”) were varied. Provided that reasonable values of the remodeling threshold are assumed and that the stem is firmly bonded to the bone, we found that the difference between direct estimates and simulation models was 4 percent of bone loss. It is therefore concluded that initial patterns of elastic energy deviation give a reasonable indication of expected bone loss.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleThe Predictive Value of Stress Shielding for Quantification of Adaptive Bone Resorption Around Hip Replacements
    typeJournal Paper
    journal volume119
    journal issue3
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.2796084
    journal fristpage228
    journal lastpage231
    identifier eissn1528-8951
    keywordsStress
    keywordsBone
    keywordsHip joint prostheses
    keywordsFinite element model
    keywordsSignals
    keywordsSimulation models
    keywordsStiffness AND Computer simulation
    treeJournal of Biomechanical Engineering:;1997:;volume( 119 ):;issue: 003
    contenttypeFulltext
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