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dc.contributor.authorRebgetz, PR
dc.contributor.authorDaniele, L
dc.contributor.authorUnderhill, ID
dc.contributor.authorÖchsner, A
dc.contributor.authorTaylor, FJ
dc.date.accessioned2021-02-10T05:33:53Z
dc.date.available2021-02-10T05:33:53Z
dc.date.issued2019
dc.identifier.issn1058-2746
dc.identifier.doi10.1016/j.jse.2018.10.008
dc.identifier.urihttp://hdl.handle.net/10072/401948
dc.description.abstractHypothesis: Fixation of a 3-part radial head fracture with cannulated compression screws will show equivalent stiffness to a locking plate under axial load. Debate exists regarding the management of Mason type III fractures, with many believing that open reduction and internal fixation provides advantages over other options. By virtue of their subarticular placement, screw fixation is less likely to cause impingement compared with plate fixation, which can result in loss of rotation and requirement for hardware removal. Insufficient fixation stability can lead to nonunions, necrosis of the radial head, pain, and instability. We tested the mechanical stability of fixation of simulated radial head fractures using headless compression screws compared with standard plate construct. Methods: Standardized test constructs were created with repeatable osteotomy cuts and hardware placement on each Synbone model (Synbone AG, Malans, Switzerland). We presectioned 22 proximal radius Synbone models to simulate a 3-part radial head fracture. The models were fixed using a radial head locking plate or headless compression screws in a tripod construct. The constructs were potted into a compression test jig using 2-part epoxy resin. Compression testing was performed using a 30-kN Instron Universal machine (Instron, Norwood, MA, USA). The compression tool was spherical, representing the surface of the capitellum. Results: There was no significant difference between the stiffness of the Synbone constructs under axial load. Conclusion: There was no significant difference between fixation stiffness of a 3-part radial head fracture with headless compression screws in a tripod structure vs. a locking plate in Synbone. Further study is required to allow clinical application.
dc.description.peerreviewedYes
dc.languageeng
dc.publisherElsevier BV
dc.relation.ispartofpagefrome111
dc.relation.ispartofpagetoe116
dc.relation.ispartofissue4
dc.relation.ispartofjournalJournal of Shoulder and Elbow Surgery
dc.relation.ispartofvolume28
dc.subject.fieldofresearchClinical sciences
dc.subject.fieldofresearchcode3202
dc.subject.keywordsBiomechanical
dc.subject.keywordsfixation
dc.subject.keywordsfracture
dc.subject.keywordsradial head
dc.subject.keywordsstability
dc.titleA biomechanical study of headless compression screws versus a locking plate in radial head fracture fixation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationRebgetz, PR; Daniele, L; Underhill, ID; Öchsner, A; Taylor, FJ, A biomechanical study of headless compression screws versus a locking plate in radial head fracture fixation, Journal of Shoulder and Elbow Surgery, 2019, 28 (4), pp. e111-e116
dcterms.dateAccepted2018-10-05
dc.date.updated2021-02-10T05:25:18Z
gro.hasfulltextNo Full Text
gro.griffith.authorUnderhill, Ian D.


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