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- Title
The Three-Loop Pulley Suture Versus Two Locking-Loop Sutures for the Repair of Canine Achilles Tendons.
- Authors
Moores, Andy P.; Owen, Martin R.; Tarlton, John F.
- Abstract
Objective- To compare a 3-loop pulley suture pattern with 2 locking-loop sutures for the repair of components of the canine Achilles mechanism. Study Design- In vitro biomechanical study. Animals- Forty-eight paired tendons collected from 9 canine cadavers. Methods- Paired tendons were repaired with either a 3-loop pulley suture or 2 locking-loop sutures and tensile tested to failure. To ensure accurate anastomosis gap measurement a direct, non-contact, method of gap measurement, using digital video, was devised. Load initiating gap formation (defined as load at a 1 mm gap) and load producing a 3 mm gap were evaluated in addition to maximum load, gap at failure, mode of failure, and time spent placing the sutures. Results- Maximum load values were similar for both repairs. The mean 1 mm gap loads were 44.0 and 18.4 N, and the mean 3 mm gap loads were 56.3 and 34.7 N, for the 3-loop pulley pattern and the 2 locking-loops, respectively; these differences were statistically significant. The 3-loop pulley pattern was faster to place and resulted in a smaller gap at failure. All but 2 repairs failed by suture pull out. Conclusions- The 3-loop pulley pattern is more resistant to gap formation during tensile loading, and is quicker to place, than 2 locking-loop sutures. Clinical Relevance- Gap formation can significantly delay tendon healing. Tendon repairs with a gap >3 mm are reported to be at increased risk of rupture during the first 6 weeks postoperatively.
- Publication
Veterinary Surgery, 2004, Vol 33, Issue 2, p131
- ISSN
0161-3499
- Publication type
Article
- DOI
10.1111/j.1532-950x.2004.04020.x