A biomechanical comparison of conventional dynamic compression plates and string-of-pearls™ locking plates using cantilever bending in a canine Ilial fracture model

BMC Veterinary Research

Research Article

Kristen R Lacy¹  Lauren B Priddy¹  Steven H Elder¹  Allison R Kenzig²  James R Butler² 

[1] Mississippi State University College of Agricultural and Biological Engineering, Box 9632, 130 Creelman Street, 39762, Mississippi State, MS, USA;Mississippi State University College of Veterinary Medicine, 240 Wise Center Drive, 39762, Mississippi State, MS, USA;

关键词: SOP;    String-of-pearls;    DCP;    Dynamic compression plate;    Canine ilium;    Ilial fracture;    Plating;    Biomechanics;   

DOI  :  10.1186/s12917-017-1139-8

 received in 2017-04-10, accepted in 2017-07-03,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundFracture of the ilium is common orthopedic injury that often requires surgical stabilization in canine patients. Of the various methods of surgical stabilization available, application of a lateral bone plate to the ilium is the most common method of fixation. Many plating options are available, each having its own advantages and disadvantages. The purpose of this study was to evaluate the biomechanical properties of a 3.5 mm String-of-Pearls™ plate and a 3.5 mm dynamic compression plate in a cadaveric canine ilial fracture model. Hemipelves were tested in cantilever bending to failure and construct stiffness, yield load, displacement at yield, ultimate load, and mode of failure were compared.ResultsThe mean stiffness of dynamic compression plate (116 ± 47 N/mm) and String-of-Pearls™ plate (107 ± 18 N/mm) constructs, mean yield load of dynamic compression plate (793 ± 333 N) and String-of-Pearls™ plate (860 ± 207 N) constructs, mean displacement at yield of dynamic compression plate (8.6 ± 3.0 mm) and String-of-Pearls™ plate (10.2 ± 2.8 mm) constructs, and ultimate load at failure of dynamic compression plate (936 ± 320 N) and String-of-Pearls™ plate (939 ± 191 N) constructs were not significantly different. No differences were found between constructs with respect to mode of failure.ConclusionsNo significant biomechanical differences were found between String-of-Pearls™ plate and dynamic compression plate constructs in this simplified cadaveric canine ilial fracture model.

【 授权许可】

CC BY   
© The Author(s). 2017