Ex Vivo Mechanical Evaluation of a Sternal ZipFix®Implant for Prosthetic Laryngoplasty in Horses

Autor: Harry J. Markwell, P.O. Eric Mueller
Rok vydání: 2016
Předmět:
Zdroj: Veterinary Surgery. 45:450-455
ISSN: 0161-3499
Popis: Objective To evaluate the properties of a ZipFix® (ZipFix) implant in equine laryngeal cartilages. Study Design Ex vivo biomechanical study. Sample Population Equine arytenoid (n=36) and cricoid cartilages (n=18). Methods Suture bites were placed in arytenoid or cricoid cartilages using a ZipFix® implant or a single strand of USP 5 braided polyester (TiCron™), and arytenoid and cricoid cartilages were separately subjected to single load to failure (25 N preload) or cyclic loading for 1,000 cycles, followed by single load to failure. Load, distraction, and stiffness were recorded. Results Four arytenoid-ZipFix cartilages fractured on implant placement. Under single load, arytenoid-ZipFix (n=9) failed at a greater mean load (359.01 ± 57.98 N) than arytenoid-Ticron (159.11 ± 22.98 N; n=12; P
Databáze: OpenAIRE