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Optimal Tension, Position, and Number of Prostheses Required for Maximum Rima Glottidis Area After Laryngoplasty
Author(s) -
Bischofberger Andrea S.,
Wereszka Marta M.,
Hadidane Ines,
Perkins Nigel R.,
Jeffcott Leo B.,
Dart Andrew J.
Publication year - 2013
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.2013.01103.x
Subject(s) - medicine , prosthesis , cadaveric spasm , laryngoplasty , orthodontics , surgery , larynx
Objectives To evaluate the effect of 3 laryngeal prostheses alone or in combination on rima glottidis area in horses. Study Design Experimental randomized design. Sample Population Cadaveric equine larynges (n = 22). Methods Three prostheses were preplaced in each of 14 larynges. Rima glottidis area was measured after loading each suture in 5 Newton (N) increments from 0 N to 35 N. In 8 larynges, the 3 prostheses were tied alone or in combination at a fixed load of 15 N and rima glottidis area measured. Results Rima glottidis cross‐sectional area increased as the load on each prosthesis increased with maximum area reached at 20 N for each prosthesis. At a fixed load of 15 N, tying 2 and 3 prostheses in combination resulted in a larger rima glottidis cross‐sectional area than achieved with each prosthesis alone. Conclusions A combination of 2 or 3 prostheses tied at a fixed load of 15 N optimized rima glottidis cross‐sectional area irrespective of the anatomic location of the prosthesis.