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Biomechanical Evaluation of the Influence of an Intramedullary Pin on the Stability of a Feline Ilial Fracture Model Stabilized With a Bone Plate
Author(s) -
Krebs Renee C.,
Roe Simon C.,
Lascelles B. Duncan X.,
MarcellinLittle Denis J.,
Trumpatori Brian J.,
Spodnick Gary
Publication year - 2014
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.2013.12091.x
Subject(s) - cadaveric spasm , medicine , displacement (psychology) , stiffness , intramedullary rod , biomechanics , population , ultimate load , deformation (meteorology) , orthodontics , biomedical engineering , anatomy , structural engineering , composite material , materials science , finite element method , psychology , environmental health , engineering , psychotherapist
Objective To compare the mechanical properties of feline ilial fractures stabilized with either a plate (P), or a plate and IM pin (P + P). Study Design Mechanical study. Sample Population Cadaveric cat pelvii (n = 10). Methods Feline ilial fractures (n = 20) stabilized with either P or P + P were subjected to 100 nondestructive load cycles, then loaded to failure. Deformation after cycling, yield load and displacement, stiffness and load at 2 mm of displacement were compared between groups. Results There were no significant differences between groups for any of the parameters. Variability of data was much larger for the P + P group. Conclusions No biomechanical advantage was demonstrated. The P + P constructs were not significantly stronger than plates alone in this acutely loaded cadaveric model.