Please use this identifier to cite or link to this item: http://hdl.handle.net/11434/1268
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dc.contributor.authorPatel, Minoo-
dc.contributor.otherLooft, John-
dc.contributor.otherCorrea, Lincoln-
dc.contributor.otherRawlings, Mathew-
dc.contributor.otherAckland, David-
dc.date2017-09-
dc.date.accessioned2017-11-22T02:05:00Z-
dc.date.available2017-11-22T02:05:00Z-
dc.date.issued2017-11-
dc.identifier.citationANZ J Surg. 2017 Nov;87(11):915-920en_US
dc.identifier.issn1445-1433en_US
dc.identifier.urihttp://hdl.handle.net/11434/1268-
dc.description.abstractBACKGROUND: Intraoperative neurovascular complications with clavicle fracture fixation are often due to far cortex penetration by drills and screws, but could be avoided using a unicortical construct. The objective of this study was to compare the bending and torsional strength of a unicortical locking screw plate construct and a hybrid (with central locked and outer non-locked long oblique screws) unicortical plate construct for clavicle fracture fixation with that of a conventional bicortical locking screw construct of plate fixation. METHODS: Twenty-four human clavicle specimens were harvested and fractured in a comminuted mid-shaft butterfly configuration. Clavicles were randomly allocated to three surgical fixation groups: unicortical locking screw, bicortical locking screw and hybrid unicortical screw fixation. Clavicles were tested in torsion and cantilever bending. Construct bending and torsional stiffness were measured, as well as ultimate strength in bending. RESULTS: There were no significant differences in bending stiffness or ultimate bending moment between all three plating techniques. The unicortical locked construct had similar torsional stiffness compared with the bicortical locked construct; however, the hybrid technique was found to have significantly lower torsional stiffness to that of the bicortical locking screw construct (mean difference: 87.5 Nmm/degree, P = 0.028). CONCLUSIONS: Unicortical locked screw plate fixation and hybrid unicortical plating fixation with centrally locked screws and outer long, oblique screws may alleviate far cortex penetration, protecting nearby anatomical structures, and may ease implant removal and conversion to bicortical fixation for revision surgery; however, use of long oblique screws may increase the risk of early loosening under torsion.en_US
dc.publisherWileyen_US
dc.subjectBiomechanicsen_US
dc.subjectBiomechanical Testingen_US
dc.subjectImplanten_US
dc.subjectRepair Contructen_US
dc.subjectClavicle Fracturesen_US
dc.subjectNeurovascular Injuryen_US
dc.subjectTorsional Stiffnessen_US
dc.subjectBicortical Locking Screwen_US
dc.subjectUnicortical Locking Screwen_US
dc.subjectClavicle Plating Techniquesen_US
dc.subjectTorsional Strengthen_US
dc.subjectBending Strengthen_US
dc.subjectPlate Fixationen_US
dc.subjectFracture Fixationen_US
dc.subjectCentre for Limb Reconstruction, The Epworth Centre, Richmond, Victoria, Australia.en_US
dc.subjectDepartment of Orthopaedic Surgery, Epworth Healthcare, Richmond, Victoria, Australiaen_US
dc.titleUnicortical and bicortical plating in the fixation of comminuted fractures of the clavicle: a biomechanical study.en_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1111/ans.14139en_US
dc.identifier.journaltitleANZ Journal of Surgeryen_US
dc.description.pubmedurihttps://www.ncbi.nlm.nih.gov/pubmed/28922701en_US
dc.description.affiliatesDepartment of Biomedical Engineering, The University of Melbourne, Melbourne, Victoria, Australiaen_US
dc.description.affiliatesDepartment of Surgery, Southern Clinical School, Monash University, Melbourne, Victoria, Australiaen_US
dc.type.studyortrialComparative Studyen_US
dc.type.contenttypeTexten_US
Appears in Collections:Musculoskeletal

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