Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study

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dc.contributor.authorŠafran, Jindřichcs
dc.contributor.authorPavlacký, Tomášcs
dc.contributor.authorMarcián, Petrcs
dc.contributor.authorHerůfek, Radimcs
dc.contributor.authorVeselý, Radekcs
dc.coverage.issue1cs
dc.coverage.volume20cs
dc.date.accessioned2025-08-18T13:03:32Z
dc.date.available2025-08-18T13:03:32Z
dc.date.issued2025-07-28cs
dc.description.abstractThis study investigated the biomechanical behavior of four different screw configurations used to fix comminuted proximal ulna fractures with a locking compression plate (LCP), via a detailed finite element model based on realistic anatomical geometry. The model incorporated realistic anatomical geometry including both cortical and cancellous bone, soft tissue constraints, and loading conditions representing the physiological self-weight of the forearm, with the humerus fixed at its proximal end. The stress distribution on the plate, strain intensity within the bone tissue, and interfragmentary motion (IFM) between fracture fragments were evaluated for each configuration. The results indicate that all the tested configurations provide adequate stability under normal loading conditions, with no risk of material failure. However, excessive stress concentrations were observed in specific screw regions depending on the configuration, particularly when proximal screws anchoring the olecranon (e.g. screws 2 and 3 in Variant 3) were omitted. Strain analysis revealed moderate physiological bone loading across variants, whereas IFM assessment highlighted the importance of securing the coronoid and apical fragments to prevent compromised healing. These findings suggest that a specific reductions in osteosynthetic material, such as omitting certain diaphyseal screws while maintaining crucial olecranon and coronoid fixation, may provide sufficient fracture stabilisation under the modelled conditions, potentially minimising implant-related complications. This modelling approach offers a valuable tool for preclinical assessment of osteosynthesis strategies and supports future comparative research on fixation methods with varying biomechanical properties.en
dc.formattextcs
dc.format.extent1-16cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Orthopaedic Surgery and Research. 2025, vol. 20, issue 1, p. 1-16.en
dc.identifier.doi10.1186/s13018-025-06031-4cs
dc.identifier.issn1749-799Xcs
dc.identifier.orcid0009-0007-2244-9561cs
dc.identifier.orcid0000-0002-9458-9690cs
dc.identifier.other198484cs
dc.identifier.researcheridE-7359-2017cs
dc.identifier.scopus55156647700cs
dc.identifier.urihttps://hdl.handle.net/11012/255424
dc.language.isoencs
dc.publisherBMCcs
dc.relation.ispartofJournal of Orthopaedic Surgery and Researchcs
dc.relation.urihttps://josr-online.biomedcentral.com/articles/10.1186/s13018-025-06031-4cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1749-799X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectProximal ulna comminuted fractureen
dc.subjectElbow jointen
dc.subjectOlecranon fractureen
dc.subjectFinite element analysisen
dc.subjectLocking compression plateen
dc.subjectInterfragmentary motionen
dc.titleAnalysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element studyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.grantNumberinfo:eu-repo/grantAgreement/MSM/EH/EH22_008/0004634cs
sync.item.dbidVAV-198484en
sync.item.dbtypeVAVen
sync.item.insts2025.08.18 15:02:59en
sync.item.modts2025.08.18 12:33:32en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechanikycs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav automatizace a informatikycs
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