Mechanical properties of various suture materials and placement patterns tested with surrogate in vitro model constructs simulating laryngeal advancement tie-forward procedures in horses.
Abstract: To compare the mechanical properties of laryngeal tie-forward (LTF) surrogate constructs prepared with steel fixtures and No. 5 braided polyester or braided polyethylene by use of a standard or a modified suture placement technique. Methods: 32 LTF surrogate constructs. Methods: Surrogate constructs were prepared with steel fixtures and sutures (polyester or polyethylene) by use of a standard or modified suture placement technique. Constructs underwent single-load-to-failure testing. Maximal load at failure, elongation at failure, stiffness, and suture breakage sites were compared among constructs prepared with polyester sutures by means of the standard (n = 10) or modified (10) technique and those prepared with polyethylene sutures with the standard (6) or modified (6) technique. Results: Polyethylene suture constructs had higher stiffness, higher load at failure, and lower elongation at failure than did polyester suture constructs. Constructs prepared with the modified technique had higher load at failure than did those prepared with the standard technique for both suture materials. All sutures broke at the knot in constructs prepared with the standard technique. Sutures broke at a location away from the knot in 13 of 16 constructs prepared with the modified technique (3 such constructs with polyethylene sutures broke at the knot). Conclusions: Results suggested LTF surrogate constructs prepared with polyethylene sutures or the modified technique were stronger than those prepared with polyester sutures or the standard technique.
Publication Date: 2014-04-26 PubMed ID: 24762024DOI: 10.2460/ajvr.75.5.500Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Comparative Study
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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This research compares the strength of sutures used in a type of veterinary surgery on horses. The specific operation is a laryngeal tie-forward (LTF) procedure. The study found that the sutures made of polyethylene and those placed using a modified technique were stronger than polyester sutures or those placed using a standard technique.
Methodology
- The researchers created models that mimic the laryngeal tie-forward procedure in horses.
- 32 of these model constructs were made, using either polyester or polyethylene sutures, and a standard or modified suture placement method.
- The models were then tested to the point of failure to observe the strength and integrity of the sutures and their placement methods.
- The team measured the maximum load that each suture could bear before failing, the extent to which each suture stretched before failing (elongation), the stiffness of the sutures, and the specific location where each suture broke.
Results
- Polyethylene sutures were found to be stiffer and able to bear more load before failure than the polyester sutures.
- Sutures placed using the modified method could bear more weight before failure than those placed using the standard method. This was consistent across both types of sutures.
- All sutures that were placed using the standard method broke at the knot when stressed to the point of failure, whilst those placed using the modified method either broke away from the knot or at the knot (in the case of 3 out of 16 with polyethylene sutures).
Conclusions
- The results suggest that polyethylene sutures and the modified placement method could be more effective in laryngeal tie-forward procedures, due to their higher strength and capacity to bear load.
- This could have implications for veterinary surgical best practices and the potential for better surgical outcomes in horses undergoing these procedures.
Cite This Article
APA
Santos MP, Gutierrez-Nibeyro SD, Horn GP, Johnson AJ, Stewart MC, Schaeffer DJ.
(2014).
Mechanical properties of various suture materials and placement patterns tested with surrogate in vitro model constructs simulating laryngeal advancement tie-forward procedures in horses.
Am J Vet Res, 75(5), 500-506.
https://doi.org/10.2460/ajvr.75.5.500 Publication
Researcher Affiliations
- Department of Clinical Veterinary Medicine, University of Illinois, Urbana-Champaign, IL 61802.
MeSH Terms
- Analysis of Variance
- Animals
- Equipment Failure Analysis / standards
- Horses / surgery
- Materials Testing / standards
- Materials Testing / veterinary
- Polyesters
- Polyethylene
- Suture Techniques / veterinary
- Sutures / standards
- Sutures / veterinary
- Tensile Strength
Citations
This article has been cited 2 times.- Lean NE, Sole-Guitart A, Ahern BJ. Laryngeal tie-forward in standing sedated horses. Vet Surg 2023 Feb;52(2):229-237.
- Grzeskowiak RM, Schumacher J, Mulon PY, Steiner RC, Cassone L, Anderson DE. Ex-vivo Mechanical Testing of Novel Laryngeal Clamps Used for Laryngeal Advancement Constructs. Front Vet Sci 2020;7:139.
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