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  • Torsion Tool: An automated tool for personalising femoral and tibial geometries in OpenSim musculoskeletal models

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    Veerkamp503089-Published.pdf (2.621Mb)
    File version
    Version of Record (VoR)
    Author(s)
    Veerkamp, Kirsten
    Kainz, Hans
    Killen, Bryce A
    Jónasdóttir, Hulda
    van der Krogt, Marjolein M
    Griffith University Author(s)
    Veerkamp, Kirsten
    Killen, Bryce A.
    Year published
    2021-08
    Metadata
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    Abstract
    Common practice in musculoskeletal modelling is to use scaled musculoskeletal models based on a healthy adult, but this does not consider subject-specific geometry, such as tibial torsion and femoral neck-shaft and anteversion angles (NSA and AVA). The aims of this study were to (1) develop an automated tool for creating OpenSim models with subject-specific tibial torsion and femoral NSA and AVA, (2) evaluate the femoral component, and (3) release the tool open-source. The Torsion Tool (https://simtk.org/projects/torsiontool) is a MATLAB-based tool that requires an individual's tibial torsion, NSA and AVA estimates as input ...
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    Common practice in musculoskeletal modelling is to use scaled musculoskeletal models based on a healthy adult, but this does not consider subject-specific geometry, such as tibial torsion and femoral neck-shaft and anteversion angles (NSA and AVA). The aims of this study were to (1) develop an automated tool for creating OpenSim models with subject-specific tibial torsion and femoral NSA and AVA, (2) evaluate the femoral component, and (3) release the tool open-source. The Torsion Tool (https://simtk.org/projects/torsiontool) is a MATLAB-based tool that requires an individual's tibial torsion, NSA and AVA estimates as input and rotates corresponding bones and associated muscle points of a generic musculoskeletal model. Performance of the Torsion Tool was evaluated comparing femur bones as personalised with the Torsion Tool and scaled generic femurs with manually segmented bones as golden standard for six typically developing children and thirteen children with cerebral palsy. The tool generated femur geometries closer to the segmentations, with lower maximum (-19%) and root mean square (-18%) errors and higher Jaccard indices (+9%) compared to generic femurs. Furthermore, the tool resulted in larger improvements for participants with higher NSA and AVA deviations. The Torsion Tool allows an automatic, fast, and user-friendly way of personalising femoral and tibial geometry in an OpenSim musculoskeletal model. Personalisation is expected to be particularly relevant in pathological populations, as will be further investigated by evaluating the effects on simulation outcomes.
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    Journal Title
    Journal of Biomechanics
    Volume
    125
    DOI
    https://doi.org/10.1016/j.jbiomech.2021.110589
    Copyright Statement
    © 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Biomedical engineering
    Mechanical engineering
    Sports science and exercise
    Cerebral palsy
    Femoral anteversion
    Musculoskeletal modeling
    Subject-specific
    Tibial torsion
    Publication URI
    http://hdl.handle.net/10072/406242
    Collection
    • Journal articles

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