title: Optimal tension, position, and number of prostheses required for maximum rima glottidis area after laryngoplasty.
abstract: OBJECTIVE
  To evaluate the effect of 3 laryngeal prostheses alone or in combination on rima glottidis area in horses.
  
  
  METHODS
  Experimental randomized design.
  
  
  METHODS
  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.
authors: Biomedical Research and Clinical Trials Unit, University Veterinary Teaching Hospital, University of Sydney, Camden, Australia.
authors: Andrea S
authors: AS
authors: Bischofberger
authors: Marta M
authors: MM
authors: Wereszka
authors: Ines
authors: I
authors: Hadidane
authors: Nigel R
authors: NR
authors: Perkins
authors: Leo B
authors: LB
authors: Jeffcott
authors: Andrew J
authors: AJ
authors: Dart
mesh_terms: D000818:Animals; D005931:Glottis / Q000033:anatomy & histology / Q000601:surgery*; D006736:Horses / Q000601:surgery*; D058753:Laryngoplasty / Q000379:methods / Q000662:veterinary*; D007830:Larynx / Q000033:anatomy & histology / Q000601:surgery; D019736:Prostheses and Implants / Q000662:veterinary*; D013536:Suture Techniques / Q000662:veterinary