An optimized transversely isotropic, hyper-poro-viscoelastic finite element model of the meniscus to evaluate mechanical degradation following traumatic loading

Journal of Biomechanics
Benjamin B WheatleyTammy L Haut Donahue

Abstract

Inverse finite element (FE) analysis is an effective method to predict material behavior, evaluate mechanical properties, and study differences in biological tissue function. The meniscus plays a key role in load distribution within the knee joint and meniscal degradation is commonly associated with the onset of osteoarthritis. In the current study, a novel transversely isotropic hyper-poro-viscoelastic constitutive formulation was incorporated in a FE model to evaluate changes in meniscal material properties following tibiofemoral joint impact. A non-linear optimization scheme was used to fit the model output to indentation relaxation experimental data. This study is the first to investigate rate of relaxation in healthy versus impacted menisci. Stiffness was found to be decreased (p=0.003), while the rate of tissue relaxation increased (p=0.010) at twelve weeks post impact. Total amount of relaxation, however, did not change in the impacted tissue (p=0.513).

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Citations

Sep 27, 2015·Journal of the Mechanical Behavior of Biomedical Materials·Benjamin B WheatleyTammy L Haut Donahue
Dec 29, 2015·Osteoarthritis and Cartilage·N H Varady, A J Grodzinsky
Dec 15, 2015·Computer Methods in Biomechanics and Biomedical Engineering·Benjamin B WheatleyLakiesha N Williams
Apr 26, 2015·Journal of Biomechanics·Tammy L Haut DonahueSuzanne A Maher
May 6, 2015·Journal of Biomechanics·Tammy Donahue
Aug 21, 2016·Journal of the Mechanical Behavior of Biomedical Materials·A LevillainT Hoc
Dec 5, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Scott A RodeoSuzanne Maher
Jun 24, 2020·Biomechanics and Modeling in Mechanobiology·Milad ImeniAbbas Samani
Jan 4, 2017·Biomechanics and Modeling in Mechanobiology·Benjamin B WheatleyTammy L Haut Donahue
Sep 23, 2020·Journal of the Mechanical Behavior of Biomedical Materials·Keith L GregaBenjamin B Wheatley

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