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Morphometric Analysis and Observer Perceptions Following Transvestibular Chondrolaryngoplasty
Ryan S Ziltzer1, Nikhil Bellamkonda2, Alden Smith3
1Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
The Annals of Otology, Rhinology, and Laryngology
|May 15, 2023
Summary
This study evaluated gender-affirming chondrolaryngoplasty using morphometric analysis and observer ratings. The endoscopic transvestibular approach effectively reduced neck protrusion and improved perceived femininity.
Area of Science:
- Plastic Surgery
- Gender Affirmation Surgery
- Surgical Outcomes Measurement
Background:
- Gender-affirming surgeries aim to align physical characteristics with gender identity.
- Chondrolaryngoplasty is a procedure to feminize the neck contour.
- Objective and subjective outcome measures are crucial for evaluating surgical success.
Purpose of the Study:
- To assess novel morphometric measurement strategies and observer perception ratings.
- To evaluate their potential as metrics for gender-affirming transvestibular chondrolaryngoplasty.
- To determine the effectiveness in reducing neck contour protrusion.
Main Methods:
- Pilot study of 10 patients undergoing endoscopic transvestibular chondrolaryngoplasty.
- Analysis of high-resolution pre- and postoperative photographs.
- Morphometric measurements (light reflex, thyroid protrusion angles) and subjective ratings by 17 untrained judges.
Main Results:
- Significant reduction in mean light reflex angles in anterior and lateral views (P<.006).
- Significant improvement in subjective ratings for perceived femininity (P<.0001).
- Significant reduction in perceived thyroid protrusion (P<.0001).
Conclusions:
- Morphometric analysis and subjective perception ratings show promise as outcome evaluation measures.
- Endoscopic transvestibular chondrolaryngoplasty effectively reduces neck protrusion.
- These methods support the evaluation of feminization chondrolaryngoplasty outcomes.
