Show simple item record

dc.contributor.authorda Luz, Simao Brito
dc.contributor.authorModenese, Luca
dc.contributor.authorSancisi, Nicola
dc.contributor.authorMills, Peter M
dc.contributor.authorKennedy, Ben
dc.contributor.authorBeck, Belinda R
dc.contributor.authorLloyd, David G
dc.date.accessioned2017-07-06T05:31:39Z
dc.date.available2017-07-06T05:31:39Z
dc.date.issued2017
dc.identifier.issn0021-9290
dc.identifier.doi10.1016/j.jbiomech.2016.12.018
dc.identifier.urihttp://hdl.handle.net/10072/340040
dc.description.abstractMusculoskeletal models typically use generic 2D models for the tibiofemoral (TFJ) and patellofemoral (PFJ) joints, with a hinge talocrural joint (TCJ), which are scaled to each subject׳s bone dimensions. Alternatively joints’ measured kinematics in cadavers are well-predicted using 3D cadaver-specific models. These employ mechanisms constrained by the articulations of geometric objects fitted to the joint׳s surfaces. In this study, we developed TFJ, PFJ and TCJ mechanism-based models off MRIs for fourteen participants and compared the estimated kinematics with those from published studies modified to be consistent with mechanisms models and subject-specific anatomical landmarks. The models’ parameters were estimated by fitting spheres to segmented articular cartilage surfaces, while ligament attachment points were selected from their bony attachment regions. Each participant׳s kinematics were estimated by ensuring no length changes in ligaments and constant distances between spheres’ centres. Two parameters’ optimizations were performed; both avoid singularities and one best matches the kinematic patterns off published studies. Sensitivity analysis determined which parameters the models were sensitive to. With both optimization methods, kinematics did not present singularities but correlation values were higher, exceeding 0.6, when matching the published studies. However, ranges of motion (ROM) were different between estimated and published studies. Across participants, models presented large parameter variation. Small variations were found between estimated- and optimized-parameters, and in the estimated-rotations and translations’ means and ROM. Model results were sensitive to changes in distal tibia, talus and patella spheres’ centres. These models can be implemented in subject-specific rigid-body musculoskeletal models to estimate joint moments and loads.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom45
dc.relation.ispartofpageto55
dc.relation.ispartofjournalJournal of Biomechanics
dc.relation.ispartofvolume53
dc.subject.fieldofresearchBiomechanical Engineering
dc.subject.fieldofresearchBiomechanics
dc.subject.fieldofresearchBiomedical Engineering
dc.subject.fieldofresearchMechanical Engineering
dc.subject.fieldofresearchHuman Movement and Sports Sciences
dc.subject.fieldofresearchcode090302
dc.subject.fieldofresearchcode110601
dc.subject.fieldofresearchcode0903
dc.subject.fieldofresearchcode0913
dc.subject.fieldofresearchcode1106
dc.titleFeasibility of using MRIs to create subject-specific parallel-mechanism joint models
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.description.versionAccepted Manuscript (AM)
gro.facultyGriffith Health, School of Allied Health Sciences
gro.rights.copyright© 2017 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorBeck, Belinda R.
gro.griffith.authorMills, Peter
gro.griffith.authorLloyd, David
gro.griffith.authorBrito da Luz, Simao
gro.griffith.authorModenese, Luca
gro.griffith.authorKennedy, Benjamin


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record