Funded in part by a grant from the Fund for Companion Animal Health, Cummings School of Veterinary Medicine at Tufts University and materials donated by Securos Veterinary Orthopedics, Inc., Fiskdale, MA; Arthrex Vet Systems Inc., Naples, FL; and Novartis Animal Health US Inc., East Hanover, NJ.
Original Article - Research
Mechanical Analysis of Twelve Toggle Suture Constructs for Stabilization of Coxofemoral Luxations
Article first published online: 30 NOV 2012
© Copyright 2012 by The American College of Veterinary Surgeons
Volume 41, Issue 8, pages 948–953, November 2012
How to Cite
Jha, S. and Kowaleski, M. P. (2012), Mechanical Analysis of Twelve Toggle Suture Constructs for Stabilization of Coxofemoral Luxations. Veterinary Surgery, 41: 948–953. doi: 10.1111/j.1532-950X.2012.01028.x
Presented in part at the 39th Annual Conference Veterinary Orthopedic Society, Crested Butte, CO, March 2012.
- Issue published online: 30 NOV 2012
- Article first published online: 30 NOV 2012
- Manuscript Accepted: JUN 2012
- Manuscript Received: FEB 2012
- Companion Animal Health, Cummings School of Veterinary Medicine at Tufts University and materials donated by Securos Veterinary Orthopedics
To compare the mechanical performance of 12 commonly used toggle suture constructs (TSCs).
In vitro biomechanical study.
Toggle suture constructs (n = 136).
TSC evaluated included #5 OrthoFiber, double strand of 5 Ethibond sutures (polyethylene terephthalate suture), 80 lb monofilament nylon, or #5 FiberWire, combined with Piermattei toggle (3/32" Steinmann pin), modified Piermattei toggle (0.045" Kirschner wire), and 1/8" Securos toggle rod for a total of 12 test groups. Acute and cyclic testing were performed using a servohydraulic testing machine and load at failure and cycles to failure were determined.
In acute testing, modified Piermattei TSCs failed by toggle deformation and Piermattei and Securos TSCs failed by suture breakage at the eyelet. Mean failure load of Piermattei-#5 OrthoFiber TSC (1416 ± 74 N) was significantly greater than that of Piermattei-#5 Ethibond (883 ± 38 N); both were significantly greater than all other TSCs. Only the Piermattei TSC with #5 OrthoFiber, #5 Ethibond, and 80 lb monofilament nylon did not fail during cyclic testing.
A combination of the Piermattei toggle and #5 OrthoFiber or #5 Ethibond achieved a higher load at failure than all other groups, and resisted the greatest number of cycles to failure. Long-term mechanical testing of these TSCs are warranted to further define their durability.