Ex vivo biomechanical evaluation of polyester and polyblend suture techniques to perform equine laryngoplasty

Pressanto, MC; Pascoletti, G; Perkins, JD; Zanetti, EM; Beccati, F; Santalucia, V; Pepe, M

Abstract

Objective To validate the use of a polyblend tape suture in equine laryngoplasty (PL). Study design Experimental study. Animals Thirty-two cadaveric larynges. Methods Each larynx was randomly assigned to 1 of 4 groups: PL with polyblend tape suture (TigerTape), without (TT) or with a cannula (TTC) in the muscular process of the arytenoid cartilage, and PL with polyester suture (Ethibond), without (EB) or with a cannula (EBC). Construct stiffness, total migration, creep, and drift values were measured after 3000 cycles. The specimens were then loaded to failure to assess their residual properties: load at failure, total energy, displacement, and 2 stiffness coefficients. Results After cyclic testing, the total migration and creep were lower in TTC (6.36 +/- 1.20 mm; 1.35 +/- 0.38 mm/s) than in EB (11.12 +/- 4.20 mm; 3.39 +/- 2.68 mm/s) and in the TT constructs (11.26 +/- 1.49 mm; 3.20 +/- 0.54 mm/s); however, no difference was found with EBC (9.19 +/- 3.18 mm; 2.14 +/- 0.99). A correlation was found between total migration and creep (R = .85). The TTC constructs failed at higher loads (129.51 +/- 33.84 N) than EB (93.16 +/- 18.21 N) and EBC (81.72 +/- 13.26 N) whereas the EB and EBC constructs were less stiff than TT and TTC (P < .001). Conclusion Biomechanical properties were generally superior for the TTC constructs tested under cyclical loading. The TT and TTC constructs failed at a higher load than EB and EBC constructs. The cannula in TTC and EBC reduced the failure at the muscular process. Clinical significance These results provide evidence to support the in vivo evaluation of the polyblend tape suture with or without a cannula in the muscular process for laryngoplasty in horses.

Citation

Pressanto, M., Pascoletti, G., Perkins, J., Zanetti, E., Beccati, F., Santalucia, V., & Pepe, M. (2022). Ex vivo biomechanical evaluation of polyester and polyblend suture techniques to perform equine laryngoplasty. Veterinary Surgery, https://doi.org/10.1111/vsu.13777

• Journal Article Type: Article
• Acceptance Date: Jan 15, 2022
• Publication Date: Feb 7, 2022
• Deposit Date: Feb 22, 2022
• Print ISSN: 0161-3499
• Electronic ISSN: 1532-950X
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1111/vsu.13777
• Keywords: PROSTHETIC LARYNGOPLASTY; RACING PERFORMANCE; MUSCULAR PROCESS; MECHANICAL EVALUATION; LARYNGEAL HEMIPLEGIA; BRAIDED POLYESTER; HORSES; VENTRICULOCORDECTOMY; COMPLICATIONS; THOROUGHBREDS
• Public URL: https://rvc-repository.worktribe.com/output/1557536