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Updated: Feb 17, 2026

Author Spotlight: Advancements in the Fabrication of Synthetic Vocal Fold Models for Phonetic and Robotic Applications
Published on: January 5, 2024
Pin-up Glottoplasty: Feasibility Study of a Novel Approach Medializing or Lateralizing Immobile Vocal Folds
Christina Pflug1, Almut Niessen1, Frank Müller2
1Center for Clinical Neurosciences, Department of Voice, Speech and Hearing Disorders, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Abstract:
Principles in medializing and lateralizing vocal folds have not changed a lot within the last decades (Isshiki et al, 1974; Bruenings, 1911). We present a feasibility study for a completely new approach to perform medialization and lateralization of immobile vocal folds. The method was tested on 20 human larynges by inserting a 21G needle into the vocal fold, medializing (or, in other cases, lateralizing) the vocal cord and fixing the needle at the cricoid cartilage posteriorly. The anterior and posterior fixation points of the needle allow for a stable positioning of the needle, which we consider necessary in both cases of medialization or lateralization. The needle position was examined visually as well as three-dimensionally via cone beam computed tomography.

