Stress distribution in the bonobo (<i>Pan paniscus</i>) trapeziometacarpal joint during grasping.

Show simple item record van Leeuwen, Timo van Lenthe, G Harry Vereecke, Evie E Schneider, Marco T
dc.coverage.spatial United States 2022-06-19T21:42:40Z 2022-06-19T21:42:40Z 2021-01
dc.identifier.citation (2021). PEERJ, 9, e12068-.
dc.identifier.issn 2167-8359
dc.description.abstract The primate thumb plays a central role in grasping and the basal trapeziometacarpal (TMC) joint is critical to its function. The TMC joint morphology varies across primates, yet little is known about form-function interaction within in the TMC joint. The purpose of this study was to investigate how stress distributions within the joint differ between five grasping types commonly employed by bonobos (<i>Pan paniscus</i>). Five cadaveric bonobo forearms were CT scanned in five standardized positions of the hand as a basis for the generation of parametric finite element models to compare grasps. We have developed a finite element analysis (FEA) approach to investigate stress distribution patterns in the TMC joint associated with each grasp type. We hypothesized that the simulated stress distributions for each position would correspond with the patterns expected from a saddle-shaped joint. However, we also expected differences in stress patterns arising from instraspecific variations in morphology. The models showed a high agreement between simulated and expected stress patterns for each of the five grasps (86% of successful simulations), while partially (52%) and fully (14%) diverging patterns were also encountered. We identified individual variations of key morphological features in the bonobo TMC joint that account for the diverging stress patterns and emphasized the effect of interindividual morphological variation on joint functioning. This study gives unprecedented insight in the form-function interactions in the TMC joint of the bonobo and provides an innovative FEA approach to modelling intra-articular stress distributions, a valuable tool for the study of the primate thumb biomechanics.
dc.format.medium Electronic-eCollection
dc.language eng
dc.publisher PeerJ
dc.relation.ispartofseries PeerJ
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.subject Bonobo
dc.subject Carpometacarpal joint
dc.subject Finite element
dc.subject Joint morphology
dc.subject Pan paniscus
dc.subject Stress distribution
dc.subject Trapeziometacarpal joint
dc.subject 06 Biological Sciences
dc.subject 11 Medical and Health Sciences
dc.title Stress distribution in the bonobo (<i>Pan paniscus</i>) trapeziometacarpal joint during grasping.
dc.type Journal Article
dc.identifier.doi 10.7717/peerj.12068
pubs.begin-page e12068
pubs.volume 9 2022-05-27T03:17:20Z
dc.rights.holder Copyright: The author en
dc.identifier.pmid 34703659 (pubmed)
pubs.publication-status Published
dc.rights.accessrights en
pubs.subtype research-article
pubs.subtype Journal Article
pubs.elements-id 872166 Bioengineering Institute
dc.identifier.eissn 2167-8359
dc.identifier.pii 12068
pubs.number e12068
pubs.record-created-at-source-date 2022-05-27 2021-10-01

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