An in vitro comparison of a 2.7/3.5 mm hybrid plate alone and combined with crossed K-wires for canine pancarpal arthrodesis

Arnott, J.L., Bailey, R., Shields, A. and Bennett, D. (2008) An in vitro comparison of a 2.7/3.5 mm hybrid plate alone and combined with crossed K-wires for canine pancarpal arthrodesis. Veterinary and Comparative Orthopaedics and Traumatology, 21(4), pp. 307-311. (doi: 10.3415/VCOT-07-05-0052)

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Abstract

Several techniques have been described for canine pancarpal arthrodesis (PCA) with dorsal plating becoming the most accepted method for ease of placement despite the proposed biomechanical disadvantages. The aim of this study was to compare the biomechanical effects of the addition of crossed K-wires to a standard 2.7/3.5 mm hybrid PCA plate. A 2.7/3.5 mm hybrid PCA plate, alone and combined with crossed K-wires were tested. Six pairs of cadaver forelimbs were collected from medium-sized dogs with an average weight of 24 kg by elbow disarticulation. The limbs were potted and fixed in an Instron load cell (Instron, High Wycombe, UK) and axially loaded to failure. Load displacement data and mode of failure were recorded and stiffness, yield load and ultimate load at failure were calculated. The yield load (kN) of the plate and K-wire construct (1.278+/-0.11) was significantly higher than for the plate construct alone (1.002+/-0.07) (p=0.00056). However, the differences between the two constructs in stiffness and failure loads were not significant

Item Type:Articles
Keywords:Animals Arthrodesis Biomechanics Bone Plates Bone Wires Cadaver Carpus,Animal Compressive Strength Dogs Forelimb Fractures,Bone instrumentation Internal Fixators Materials Testing methods standards Stress,Mechanical surgery veterinary Veterinary Medicine
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Bennett, Professor David
Authors: Arnott, J.L., Bailey, R., Shields, A., and Bennett, D.
College/School:College of Medical Veterinary and Life Sciences > School of Veterinary Medicine
Journal Name:Veterinary and Comparative Orthopaedics and Traumatology
ISSN:0932-0814

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