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contributor authorKiapour, Ali
contributor authorKiapour, Ata M.
contributor authorKaul, Vikas
contributor authorQuatman, Carmen E.
contributor authorWordeman, Samuel C.
contributor authorHewett, Timothy E.
contributor authorDemetropoulos, Constantine K.
contributor authorGoel, Vijay K.
date accessioned2017-05-09T01:05:05Z
date available2017-05-09T01:05:05Z
date issued2014
identifier issn0148-0731
identifier otherbio_136_01_011002.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/153916
description abstractMultiple computational models have been developed to study knee biomechanics. However, the majority of these models are mainly validated against a limited range of loading conditions and/or do not include sufficient details of the critical anatomical structures within the joint. Due to the multifactorial dynamic nature of knee injuries, anatomic finite element (FE) models validated against multiple factors under a broad range of loading conditions are necessary. This study presents a validated FE model of the lower extremity with an anatomically accurate representation of the knee joint. The model was validated against tibiofemoral kinematics, ligaments strain/force, and articular cartilage pressure data measured directly from static, quasistatic, and dynamic cadaveric experiments. Strong correlations were observed between model predictions and experimental data (r > 0.8 and p < 0.0005 for all comparisons). FE predictions showed low deviations (rootmeansquare (RMS) error) from average experimental data under all modes of static and quasistatic loading, falling within 2.5 deg of tibiofemoral rotation, 1% of anterior cruciate ligament (ACL) and medial collateral ligament (MCL) strains, 17 N of ACL load, and 1 mm of tibiofemoral center of pressure. Similarly, the FE model was able to accurately predict tibiofemoral kinematics and ACL and MCL strains during simulated bipedal landings (dynamic loading). In addition to minimal deviation from direct cadaveric measurements, all model predictions fell within 95% confidence intervals of the average experimental data. Agreement between model predictions and experimental data demonstrates the ability of the developed model to predict the kinematics of the human knee joint as well as the complex, nonuniform stress and strain fields that occur in biological soft tissue. Such a model will facilitate the indepth understanding of a multitude of potential knee injury mechanisms with special emphasis on ACL injury.
publisherThe American Society of Mechanical Engineers (ASME)
titleFinite Element Model of the Knee for Investigation of Injury Mechanisms: Development and Validation
typeJournal Paper
journal volume136
journal issue1
journal titleJournal of Biomechanical Engineering
identifier doi10.1115/1.4025692
journal fristpage11002
journal lastpage11002
identifier eissn1528-8951
treeJournal of Biomechanical Engineering:;2014:;volume( 136 ):;issue: 001
contenttypeFulltext


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