Biomechanical Properties of the 1.5 mm Locking Compression Plate: Comparison with the 1.5 and 2.0 mm Straight Plates in Compression and Torsion.
| Autor: | Watrous GK; Department of Clinical Studies, University of Guelph, Ontario Veterinary College, Guelph, Ontario, Canada., Moens NMM; Department of Clinical Studies, University of Guelph, Ontario Veterinary College, Guelph, Ontario, Canada., Runciman J; Department of Engineering, University of Guelph, Guelph, Ontario, Canada., Gibson TWG; Department of Clinical Studies, University of Guelph, Ontario Veterinary College, Guelph, Ontario, Canada. |
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| Jazyk: | angličtina |
| Zdroj: | Veterinary and comparative orthopaedics and traumatology : V.C.O.T [Vet Comp Orthop Traumatol] 2018 Nov; Vol. 31 (6), pp. 438-444. Date of Electronic Publication: 2018 Oct 24. |
| DOI: | 10.1055/s-0038-1668084 |
| Abstrakt: | Objectives: The purpose was to compare the biomechanical properties of a 1.5 mm locking compression plate (1.5 LCP) to the 1.5 mm straight plate (1.5 P), 1.5 mm straight plate stacked (1.5 PSt) and 2.0 mm straight plate (2.0 P) in compression and torsion. We hypothesized that biomechanical properties of the 1.5 LCP would be equivalent to properties of the 1.5 P and would represent an alternative for the treatment of radial fractures in miniature breed dogs in which those plates would be used. Materials and Methods: A 1 mm fracture gap model was created with a bone surrogate stabilized with a six-hole plate. Sixteen constructs were built for each of the four plate configurations. Eight constructs from each group were tested in compression to failure and eight constructs were tested in torsion to failure. Results: In compression testing, the 1.5 LCP was stiffer than the 1.5 P, and had similar stiffness than the 1.5 PSt and the 2.0 P. The load at yield of the 1.5 LCP was slightly lower than the 1.5 P. In torsion, the 1.5 LCP and 1.5 P had similar stiffness, but 1.5 LCP was slightly stronger than 1.5 P. The 1.5 PSt and 2.0 P were overall superior to the 1.5 LCP but only marginally so for the 1.5 PSt. Clinical Relevance: The 1.5 LCP can be considered biomechanically equivalent to the 1.5 P under the present experimental conditions. The use of the 1.5 LCP can be considered as an option for radial fracture repair in dogs in which a 1.5 P would have otherwise been used. The use of a locking plate to improve overall success rate, in these fractures, remains to be confirmed clinically. Competing Interests: John Runciman, Tom W. G. Gibson and Noel M. M. Moens report grants from Pet Trust, Ontario Veterinary College, and non-financial support from Johnson and Johnson, during the conduct of the study. Gwyneth K. Watrous received Synthes implants for the research. (Georg Thieme Verlag KG Stuttgart · New York.) |
| Databáze: | MEDLINE |
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