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Comparison of a 3-hole 4.5-mm Dynamic Compression Plate and a 7-hole 5.5-mm Y Locking Compression Plate for Arthrodesis of the Proximal Interphalangeal Joint in Horses—an Ex Vivo Biomechanical Study.
- Source :
- Journal of Equine Veterinary Science; Nov2020, Vol. 94, pN.PAG-N.PAG, 1p
- Publication Year :
- 2020
-
Abstract
- The objective of this study was to compare the biomechanical properties in a single cycle axial loading test and the types of failures in two constructs (a 3-hole 4.5-mm dynamic compression plate (DCP) and 7-hole 5.5-mm Y locking compression plate (Y-LCP)) in equine proximal interphalangeal joint (PIJ) arthrodesis. One limb in each pair was randomly assigned to PIJ arthrodesis using a 3-hole 4.5-mm DCP combined with two transarticular 5.5-mm cortical screws, whereas the contralateral limb was submitted to PIJ arthrodesis using a 7-hole Y-shaped 5.0-mm LCP in conjunction with one transarticular 4.5-mm cortical screw inserted through the central plate hole. Cortical screws were inserted in lag fashion. Constructs were submitted to a single axial load cycle to failure. Construct stiffness, load, and deformation were analyzed. Dynamic compression plate and Y-LCP arthrodesis constructs did not differ significantly and were equally resistant to axial loading under the conditions studied (DCP and Y-LCP group stiffness, 5685.22 N/mm and 6591.10 N/mm, respectively). Arthrodesis of the PIJ using a DCP and two transarticular 5.5-mm cortical screws or a Y-LCP yielded biomechanically equivalent outcomes under the test conditions considered. However, Y-LCP provides less impact in the palmar/plantar bone. Application of Y-LCP with unicortical screws has equivalent biomechanical characteristics of DCP and may be a safe option for PIJ arthrodesis, where potential trauma secondary to applying bicortical screws in the palmar/plantar aspect of the pastern can be avoided. • Arthrodesis of the proximal interphalangeal joint using a dynamic compression plate or Y-shaped locking compression plate (Y-LCP) yielded biomechanically equivalent outcomes. • The Y-LCP provides less impact in the bone and maybe faster for clinical settings. • The Y-LCP with unicortical screws may reduce potential trauma in the palmar/plantar aspect of the pastern. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 07370806
- Volume :
- 94
- Database :
- Supplemental Index
- Journal :
- Journal of Equine Veterinary Science
- Publication Type :
- Academic Journal
- Accession number :
- 146534076
- Full Text :
- https://doi.org/10.1016/j.jevs.2020.103252