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Related Experiment Video

Updated: Aug 13, 2025

Author Spotlight: Development and Evaluation of a Standardized Rat Model for Calvarial Suture-Bony Composite Defects
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Author Spotlight: Development and Evaluation of a Standardized Rat Model for Calvarial Suture-Bony Composite Defects

Published on: May 10, 2024

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Development of an Animal Model for Type II Sulcus (Sulcus Vergeture).

Ayşegül Batıoğlu-Karaaltın1, Muge Ugurlar1, Necati Enver2

  • 1Department of Otolaryngology-Head and Neck Surgery, Cerrahpasa Medicine Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey.

Journal of Voice : Official Journal of the Voice Foundation
|January 22, 2023
PubMed
Summary

Researchers developed a rabbit model for sulcus vocalis using thyrotomy and mucosal sutures. This reproducible animal model is crucial for future research on sulcus vergeture treatments.

Keywords:
Experimental sulcus modeling—Larynx—Sulcus vocalis—Vocal fold

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Area of Science:

  • Otolaryngology
  • Animal Modeling
  • Vocal Fold Pathology

Background:

  • Sulcus vergeture is a vocal fold abnormality affecting voice quality.
  • Developing a reproducible animal model is essential for studying its pathogenesis and treatment.

Purpose of the Study:

  • To establish a reliable experimental animal model for inducing sulcus vergeture in rabbits.

Main Methods:

  • Three surgical methods were tested in 12 New Zealand white rabbits.
  • Group 3 involved submucosal injury via thyrotomy with horizontal mucosal lateralization suture.
  • Vocal folds were analyzed histopathologically after six weeks.

Main Results:

  • Methods 1 and 2 did not produce sulcus vocalis.
  • All rabbits in Group 3 demonstrated sulcus formation, confirmed endoscopically and microscopically.
  • Histopathology confirmed sulcus in most Group 3 rabbits.

Conclusions:

  • A reproducible rabbit model for sulcus vergeture was successfully developed using thyrotomy and mucosal sutures.
  • This model serves as a foundation for investigating novel sulcus management strategies.