Biomechanical testing of three constructs for prosthetic laryngoplasty in horses demonstrates advantages of differing metallic implants in the arytenoid cartilage.

ABSTRACT:

Objective

To compare the biomechanical stability of a novel arytenoid implant (tie-bolt, TB) with a suture anchor (SA) and standard laryngoplasty using suture alone (control) in equine larynges.

Study design

Randomized ex vivo controlled experimental study.

Sample population

Thirty equine cadaver larynges.

Methods

Larynges were randomly assigned to TB, SA, or control groups (n = 10 each). The force of abduction was measured for each construct, then constructs underwent cyclic loading (5-50 N for 3000 cycles) to assess elongation, followed by load-to-failure testing to assess ultimate load, displacement, stiffness, and mode of failure.

Results

The SA required less force to achieve 88% abduction (8.31 ± 2.46 N) than the TB (11.48 ± 3.6 N, p = .07) and cont

SUBMITTER: Ysebaert MP 

PROVIDER: S-EPMC12810437 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature