Cadaveric biomechanical assessment of different configurations for a novel pin and plate fixation method in distal humerus fractures

Use of dual pre-contoured plates has been accepted as the treatment of choice in distal humerus fractures despite challenges especially in very distal or highly fragmented fractures. Aiming to improve results in such instances, our newly proposed method uses several K-wires fixated by a small recons...

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Bibliographic Details
Published in:Scientific reports 2024-01, Vol.14 (1), p.242-242, Article 242
Main Authors: Same, Kaveh, Hakiminejad, Alireza, Nourani, Amir, Nabian, Mohammad Hossein, Foruozesh, Mehdi, Kamrani, Reza Shahriar
Format: Article
Language:English
Subjects:
692/698/1671/63
692/700/806
Biomechanical Phenomena
Biomechanics
Cadaver
Cadavers
Fracture Fixation, Internal - methods
Fractures
Humanities and Social Sciences
Humans
Humeral Fractures - surgery
Humeral Fractures, Distal
Humerus
Humerus - surgery
multidisciplinary
Science
Science (multidisciplinary)
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Summary:Use of dual pre-contoured plates has been accepted as the treatment of choice in distal humerus fractures despite challenges especially in very distal or highly fragmented fractures. Aiming to improve results in such instances, our newly proposed method uses several K-wires fixated by a small reconstruction plate. Drawing on the results of previous finite element studies, the current study aims to compare the stiffness of three clinically common variations of this method using biomechanical testing in cadaveric humeri. 24 samples were divided into three groups and fractures were simulated. Groups I and II used 1.5 mm K-wires in differing configurations while 2 mm wires were used in group III. All samples underwent compression, anterior and posterior bending, and torsional testing as well as failure testing. Our results indicated that Group III had significantly higher stiffness in flexion, extension, and torsion ( p  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-50976-7