Journal article
An ex vivo biomechanical study comparing strength characteristics of a new technique with the three-loop pulley for equine tenorrhaphy
Veterinary Surgery, Vol.40(6), pp.768-773
2011
Abstract
Objective: To test single cycle to failure tensile strength characteristics of 6 suture material-pattern combinations in equine superficial digital flexor (SDF) tenorrhaphy, specifically to compare a 10-strand modification of the Savage core suture technique with the 3-loop pulley technique.
Study Design: Ex vivo mechanical experiment comparing 3 different suture patterns with 2 different materials.
Sample Population: Forelimb and hindlimb SDF tendons (n = 48) harvested from adult Thoroughbred and Standardbred horses of mixed age and gender.
Methods: Six suture material-pattern combinations were evaluated: (1) 10-strand Savage, size 2 polydioxanone (PDS); (2) 10-strand Savage, size 2 polyglactin 910 (PG910); (3) 10-strand Savage, size 2 PDS with Lin-locking epitenon suture, size 2-0 PDS; (4) 10-strand Savage size 2 PG910 with Lin-locking epitenon suture, size 2-0 PDS; (5) 3-loop pulley, size 2 PDS; and (6) 3-loop pulley, size 2 PG910. Maximum load at failure (N), gap at failure (mm), and mode of failure (suture breakage or pull through) were evaluated for each of the 6 suture material-pattern combinations and underwent statistical analysis to determine significance of differences and interactions of the measured data.
Results: The 10-strand Savage technique failed at a mean load of 872N (804-939, 95% CI). The 10-strand Savage with Lin-locking failed at a significantly greater mean load of 998N (930-1065, 95% CI). The 3-loop pulley pattern failed with a mean load of 337N (270-405, 95% CI). There were significant interactions between the technique and suture material used.
Conclusion: The 10-strand Savage technique for repair of transected cadaver SDF tendons has superior strength characteristics with or without the epitenon suture when compared to the 3-loop pulley. Suture material and pattern interactions were observed with PG 910 conferring higher strength for the 10-strand Savage whereas PDS did so for the 3-loop pulley.
Details
- Title
- An ex vivo biomechanical study comparing strength characteristics of a new technique with the three-loop pulley for equine tenorrhaphy
- Authors/Creators
- R.L. Smith (Author/Creator) - Murdoch UniversityD.J. Murphy (Author/Creator) - Murdoch UniversityR.E. Day (Author/Creator) - Royal Perth HospitalG.D. Lester (Author/Creator) - Murdoch University
- Publication Details
- Veterinary Surgery, Vol.40(6), pp.768-773
- Publisher
- W. B. Saunders Co., Ltd.
- Identifiers
- 991005544655507891
- Copyright
- © Copyright 2011 by The American College of Veterinary Surgeons
- Murdoch Affiliation
- School of Veterinary and Biomedical Sciences
- Language
- English
- Resource Type
- Journal article
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