Journal article
Excised larynx evaluation of subthyroid cartilage approach to medialization thyroplasty
The Laryngoscope, Vol.128(3), pp.675-681
03/2018
DOI: 10.1002/lary.26852
PMID: 28891238
Abstract
To describe an alternative approach to medialization thyroplasty involving dissection underneath the thyroid cartilage with placement of a Gore-Tex implant, and to evaluate its effect on a range of phonatory measures using an excised canine larynx model.
Animal model.
On each of eight excised canine larynges, the conditions of normal, paralysis, medialization thyroplasty by standard transthyroid cartilage approach, and medialization thyroplasty by experimental subthyroid cartilage approach were performed. Aerodynamic, acoustic, and mucosal wave parameters were measured for each condition.
Compared to the vocal fold paralysis state, both the transthyroid and subthyroid approaches for Gore-Tex insertion resulted in significant decreases in phonation threshold pressure and phonation threshold flow. Both approaches also significantly decreased percent jitter, decreased percent shimmer, and improved signal-to-noise ratio. The mucosal wave was preserved after insertion of the Gore-Tex implant for both approaches. For all the phonatory measures except phonation threshold flow, there were no significant differences between the transthyroid and subthyroid approaches.
Gore-Tex implantation via a subthyroid approach in an excised canine larynx model can produce effective medialization, preserve the mucosal wave, and significantly improve aerodynamic and acoustic parameters without meaningful difference compared to a traditional transthyroid approach. The subthyroid approach does not require creation of a thyroid cartilage window and could be a potentially valuable alternative method of performing medialization thyroplasty.
NA. Laryngoscope, 128:675-681, 2018.
Details
- Title: Subtitle
- Excised larynx evaluation of subthyroid cartilage approach to medialization thyroplasty
- Creators
- James D Thompson - University of Wisconsin School of Medicine and Public HealthMatthew R Hoffman - University of Wisconsin School of Medicine and Public HealthAustin Scholp - University of Wisconsin–MadisonErin E Devine - University of Wisconsin–MadisonJack J Jiang - University of Wisconsin–MadisonTimothy M McCulloch - University of Wisconsin–Madison
- Resource Type
- Journal article
- Publication Details
- The Laryngoscope, Vol.128(3), pp.675-681
- DOI
- 10.1002/lary.26852
- PMID
- 28891238
- ISSN
- 0023-852X
- eISSN
- 1531-4995
- Language
- English
- Date published
- 03/2018
- Academic Unit
- Otolaryngology
- Record Identifier
- 9984366372502771
Metrics
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