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Ex vivo biomechanical evaluation of 2.4 mm LCP plate rod constructs versus 2.7 mm LCP applied to the feline tibia.

Ex vivo biomechanical evaluation of 2.4 mm LCP plate rod constructs versus 2.7 mm LCP applied to the feline tibia.

Authors :
Gutbrod A
Longo F
Affentranger R
Ferguson SJ
Pozzi A
Knell SC
Source :
Veterinary surgery : VS [Vet Surg] 2024 May; Vol. 53 (4), pp. 710-716. Date of Electronic Publication: 2023 Oct 11.
Publication Year :
2024

Abstract

Objective: To compare the stiffness and strength of three plate and rod fixation constructs applied to a feline tibial gap model.<br />Study Design: Ex vivo study.<br />Sample Population: Thirty-three unpaired tibiae obtained from skeletally mature cats.<br />Methods: The tibiae were randomly divided into three groups. The following implants were then applied to the feline tibiae prior to the creation of a 10 mm diaphyseal gap. Group 1: 2.4 mm locking compression plate (LCP) and 1.0 mm intramedullary pin (IMP). Group 2: 2.4 mm LCP and 1.6 mm IMP. Group 3: 2.7 mm LCP. Subsequently, each specimen was tested for torsion, axial compression, and axial load until construct failure. Student's t-tests were used to compare the torsional and axial stiffness, yield load, and maximum axial force.<br />Results: Group 2 had higher axial stiffness than group 3 (p = .013). Group 1 showed a lower maximum axial force and yield point than groups 2 and 3 (p < .01; p < .05, respectively). There were no among-group differences in torsional stiffness.<br />Conclusion: Constructs with a 2.4 mm LCP and 1.6 mm IMP provided the strongest and most rigid constructs in a feline tibia gap model.<br />Clinical Significance: A plate-rod construct combining a 2.4 mm LCP and a 1.6 mm IMP is appropriate for achieving high implant stiffness and resisting maximum axial force in treatment of tibial fractures in cats.<br /> (© 2023 The Authors. Veterinary Surgery published by Wiley Periodicals LLC on behalf of American College of Veterinary Surgeons.)

Details

Language :
English
ISSN :
1532-950X
Volume :
53
Issue :
4
Database :
MEDLINE
Journal :
Veterinary surgery : VS
Publication Type :
Academic Journal
Accession number :
37818951
Full Text :
https://doi.org/10.1111/vsu.14038