Original Article - Research
Biomechanical Testing of a Novel Suture Pattern for Repair of Equine Tendon Lacerations
Article first published online: 31 OCT 2011
© Copyright 2011 by The American College of Veterinary Surgeons
Volume 41, Issue 2, pages 278–285, February 2012
How to Cite
Everett, E., Barrett, J. G., Morelli, J. and DeVita, R. (2012), Biomechanical Testing of a Novel Suture Pattern for Repair of Equine Tendon Lacerations. Veterinary Surgery, 41: 278–285. doi: 10.1111/j.1532-950X.2011.00905.x
- Issue published online: 16 FEB 2012
- Article first published online: 31 OCT 2011
- Manuscript Accepted: JUL 2011
- Manuscript Received: JAN 2010
- Diplomate Clinical Research
- the American College of Veterinary Surgeons Foundation
To compare in vitro biomechanical properties of a novel suture pattern to a current standard for primary repair of equine superficial digital flexor tendon (SDFT) laceration.
In vitro randomized, paired design.
Cadaveric equine forelimb SDFT (n = 24).
The 3-loop pulley (3LP) and 6-strand Savage (SSS) suture patterns were applied to transected equine SDFT. Ultimate failure load, stiffness, mode of failure, and load required to form a 3-mm gap were obtained using a materials testing system and synchronized high-speed video analysis. Statistical comparisons were made using Student's t-test, with significance set at P < .05.
The SSS repair failed at a higher ultimate load (421.1 N ± 47.6) than the 3LP repair (193.7 N ± 43.0; P < .001). There was no significant difference in stiffness (P = .99). Failure mode was suture breakage for all SSS repair and suture pull through for all 3LP repair. The maximum load to create a 3-mm gap in the SSS repair (102.0 N ± 22.4) was not significantly different from the 3LP repair (109.9 N ± 16.0; P = .27).
SSS tenorrhaphy has improved strength and resistance to pull through compared with 3LP for equine SDFT in a single load-to-failure test. Load required to form a 3-mm gap was not significantly different between SSS and 3LP.