Ex vivo biomechanical evaluation of polyester and polyblend suture techniques to perform equine laryngoplasty. Issue 3 (7th February 2022)

• Record Type: Journal Article
• Authors: Pressanto, Maria Chiara; Pascoletti, Giulia; Perkins, Justin D.; Zanetti, Elisabetta M.; Beccati, Francesca; Santalucia, Virginio; Pepe, Marco
• Is Part Of: Veterinary surgery. Volume 51:Issue 3(2022)
• Page Start: 497
• Page End: 508
• Publication Date: 2022-02-07
• Subjects: Veterinary surgery -- Periodicals; Veterinary Medicine -- Periodicals; Surgery -- Periodicals; Societies, Medical -- Periodicals; 636.0897
• DOI: 10.1111/vsu.13777
• Languages: English
• ISSNs: 0161-3499

Abstract

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.