In vitro mechanical evaluation of a limited contact dynamic compression plate and hybrid carpal arthrodesis plate for canine pancarpal arthrodesis
| Autor: | Loïc M. Déjardin, Reunan P. Guillou, Ryan M. Demianiuk, K. Curcio, Michael T. Sinnott, C. E. DeCamp, Roger C. Haut |
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| Rok vydání: | 2012 |
| Předmět: |
medicine.medical_specialty
General Veterinary business.industry Metacarpal region Arthrodesis medicine.medical_treatment Soft tissue Implant failure Limited contact dynamic compression plate Biomechanical Phenomena Surgery Carpus Animal Dogs Materials Testing Cadaver medicine Animals Animal Science and Zoology Mechanical Evaluation business Bone Plates Biomedical engineering |
| Zdroj: | Veterinary and Comparative Orthopaedics and Traumatology. 25:83-88 |
| ISSN: | 2567-6911 0932-0814 |
| DOI: | 10.3415/vcot-11-05-0077 |
| Popis: | SummaryObjective: To compare the mechanical properties of pancarpal arthrodesis (PCA) constructs stabilized at 20° of extension using either a 3.5 mm limited contact dynamic compression plate (LC-DCP) or a 3.5/2.7 mm hybrid plate (HP).Methods: Seven forelimb pairs were used from dogs of similar size. All soft tissues were removed except for supporting structures of the carpus and proximal metacarpal region. All plates were accurately bent to 20°, and then instrumented with two, 350Ω strain gauges applied at the level of the bend. Constructs were embedded in epoxy moulds then mounted onto a servo-hydraulic testing machine. Specimens were loaded for 10 cycles at 100N, 200N and 300N. Tenth cycle construct compliance (CC), maximum angular deformation (MAD), and peak plate strain (PPS) were compared using two-factor analysis of variance (ANOVA) and Student-Newman- Keuls post-hoc tests (p Results: Regardless of load, CC was 29% to 33% smaller in the HP than the LC-DCP group (p Clinical significance: The mechanical advantages of the HP over the LC-DCP make it a viable alternative for PCA. Smaller CC, MAD and PSS of the HP may reduce the risk of implant failure and postoperative morbidity following PCA. |
| Databáze: | OpenAIRE |
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