Work completed at the University of Minnesota, College of Veterinary Medicine, St. Paul, MN and the Center for Bone and Joint Research and Education, Minneapolis, MN.
Mechanical Properties of Canine Patella-Ligament-Tibia Segment
Version of Record online: 3 FEB 2014
© Copyright 2013 by The American College of Veterinary Surgeons
Volume 43, Issue 2, pages 136–141, February 2014
How to Cite
Biskup, J., Freeman, A., Camisa, W., Innes, J. and Conzemius, M. (2014), Mechanical Properties of Canine Patella-Ligament-Tibia Segment. Veterinary Surgery, 43: 136–141. doi: 10.1111/j.1532-950X.2013.12109.x
- Issue online: 3 FEB 2014
- Version of Record online: 3 FEB 2014
- Manuscript Accepted: 1 SEP 2012
- Manuscript Received: 1 DEC 2011
To test the ex vivo mechanical properties of canine patella-ligament-tibia (PLT) segment and establish the relationship between donor size and PLT dimensions to the mechanical properties of PLT grafts.
Ex vivo mechanical testing study.
Canine PLT segments (n = 21 dogs; 42 PLT).
Morphometric measurements of PLT segments were taken from computed tomography (CT) images and compared with results obtained using calipers. PLT were tested to failure at a rate of 100% length/s. Mechanical properties and failure mode were recorded.
PLT width and thickness (P < .001 for both) measured by calipers were significantly lower than those taken from CT images. Thirty-five (83%) specimens failed by avulsion fracture from the patella, 1 failed mid-ligament, and 6 failed by tibial fracture. Dog weight and PLT length had the strongest Pearson's r value when correlated with load at failure (r = 0.73, 0.81, respectively).
Dog weight and PLT length were the best predictors of load at failure. PLT failure load of dogs weighing >25 kg were similar to those reported for the cranial cruciate ligament (CCL) suggesting that the PLT may be a suitable allograft for CCL replacement.