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    A Parametric Design Evaluation of Lateral Prophylactic Knee Braces

    Source: Journal of Biomechanical Engineering:;1993:;volume( 115 ):;issue: 002::page 131
    Author:
    B. J. Daley
    ,
    J. L. Ralston
    ,
    T. D. Brown
    ,
    R. A. Brand
    DOI: 10.1115/1.2894112
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Six major mechanical design variables characterizing single-upright lateral prophylactic knee braces were studied experimentally, using a generic modular brace (GMB). Impulsive valgus loading tests were conducted with the GMB applied to a surrogate leg model. The surrogate involved anatomically realistic aluminum-reinforced acrylic components to model bone, and expendable polymeric blanks to mimic the major knee ligaments. Behavior of the surrogate system reasonably reproduced that of human cadaveric knees under similar loading conditions. Load at failure of the medial collateral ligament (MCL) analog, gross knee stiffness, and MCL relative strain relief were measured for each of twelve parametric brace design permutations. Compared to the unbraced condition, bracing provided statistically significant increases in valgus load uptake at failure and in MCL strain relief. Increasing the dimensions of individual brace components (hinge length and offset; upright length, breadth, and thickness; cuff area), relative to those of a GMB baseline configuration deemed representative of current commerical products, failed to achieve statistically significant improvements in brace performance. However, most below-baseline dimensioning of individual components did significantly compromise GMB performance. These surrogate test data indicate that geometric modifications of current single-upright lateral brace designs are unlikely to substantially improve upon the fairly modest valgus load protection afforded by this class of devices.
    keyword(s): Bracing (Construction) , Parametric design , Knee , Stress , Dimensions , Failure , Stiffness , Thickness , Blanks , Aluminum , Hinges , Bone , Design AND Design engineering ,
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      A Parametric Design Evaluation of Lateral Prophylactic Knee Braces

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    http://yetl.yabesh.ir/yetl1/handle/yetl/111572
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    • Journal of Biomechanical Engineering

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    contributor authorB. J. Daley
    contributor authorJ. L. Ralston
    contributor authorT. D. Brown
    contributor authorR. A. Brand
    date accessioned2017-05-08T23:40:44Z
    date available2017-05-08T23:40:44Z
    date copyrightMay, 1993
    date issued1993
    identifier issn0148-0731
    identifier otherJBENDY-25897#131_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/111572
    description abstractSix major mechanical design variables characterizing single-upright lateral prophylactic knee braces were studied experimentally, using a generic modular brace (GMB). Impulsive valgus loading tests were conducted with the GMB applied to a surrogate leg model. The surrogate involved anatomically realistic aluminum-reinforced acrylic components to model bone, and expendable polymeric blanks to mimic the major knee ligaments. Behavior of the surrogate system reasonably reproduced that of human cadaveric knees under similar loading conditions. Load at failure of the medial collateral ligament (MCL) analog, gross knee stiffness, and MCL relative strain relief were measured for each of twelve parametric brace design permutations. Compared to the unbraced condition, bracing provided statistically significant increases in valgus load uptake at failure and in MCL strain relief. Increasing the dimensions of individual brace components (hinge length and offset; upright length, breadth, and thickness; cuff area), relative to those of a GMB baseline configuration deemed representative of current commerical products, failed to achieve statistically significant improvements in brace performance. However, most below-baseline dimensioning of individual components did significantly compromise GMB performance. These surrogate test data indicate that geometric modifications of current single-upright lateral brace designs are unlikely to substantially improve upon the fairly modest valgus load protection afforded by this class of devices.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Parametric Design Evaluation of Lateral Prophylactic Knee Braces
    typeJournal Paper
    journal volume115
    journal issue2
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.2894112
    journal fristpage131
    journal lastpage136
    identifier eissn1528-8951
    keywordsBracing (Construction)
    keywordsParametric design
    keywordsKnee
    keywordsStress
    keywordsDimensions
    keywordsFailure
    keywordsStiffness
    keywordsThickness
    keywordsBlanks
    keywordsAluminum
    keywordsHinges
    keywordsBone
    keywordsDesign AND Design engineering
    treeJournal of Biomechanical Engineering:;1993:;volume( 115 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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