Journal article

Ex vivo modeling of the airflow dynamics and two-and three-dimensional biomechanical effects of suture placements for prosthetic laryngoplasty in horses

Nicola P Lynch, Sarah A Jones, Lucy G Bazley-White, Zoe F Wilson, Jennifer Raffetto, Thilo Pfau, Jonathon Cheetham, Justin D Perkins

AMERICAN JOURNAL OF VETERINARY RESEARCH | AMER VETERINARY MEDICAL ASSOC | Published : 2020

Abstract

OBJECTIVE: To identify the degree of left arytenoid cartilage (LAC) abduction that allows laryngeal airflow similar to that in galloping horses, assess 2-D and 3-D biomechanical effects of prosthetic laryngoplasty on LAC movement and airflow, and determine the influence of suture position through the muscular process of the arytenoid cartilage (MPA) on these variables. SAMPLE: 7 equine cadaver larynges. PROCEDURES: With the right arytenoid cartilage maximally abducted and inspiratory airflow simulated by vacuum, laryngeal airflow and translaryngeal pressure and impedance were measured at 12 incremental LAC abduction forces (0% to 100% [maximum abduction]) applied through laryngoplasty suture..

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