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

To validate the use of a polyblend tape suture in equine laryngoplasty (PL). Experimental study. Thirty-two cadaveric larynges. 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. 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). 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. 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. © 2022 American College of Veterinary Surgeons.

Citation

Maria Chiara Pressanto, Giulia Pascoletti, Justin D Perkins, Elisabetta M Zanetti, Francesca Beccati, Virginio Santalucia, Marco Pepe. Ex vivo biomechanical evaluation of polyester and polyblend suture techniques to perform equine laryngoplasty. Veterinary surgery : VS. 2022 Apr;51(3):497-508

Mesh Tags

Substances

PMID: 35129218

search → result