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Related Experiment Videos

Arytenoid cartilage dislocation: a 20-year experience.

Adam D Rubin1, Mary J Hawkshaw, Cheryl A Moyer

  • 1Lakeshore Professional Voice Center, Lakeshore Ear, Nose, & Throat Center, St. Clair Shores, MI, USA.

Journal of Voice : Official Journal of the Voice Foundation
|November 23, 2005
PubMed
Summary
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Arytenoid cartilage dislocation, a rare cause of vocal fold immobility, often results from intubation or trauma. Endoscopic reduction can significantly improve voice quality, even long after injury.

Area of Science:

  • Otolaryngology
  • Laryngology
  • Vocal Fold Disorders

Background:

  • Arytenoid cartilage dislocation is an uncommon diagnosis linked to vocal fold immobility.
  • Reported cases are infrequent, with intubation and laryngeal trauma being primary causes.
  • Symptoms typically include reduced voice volume and breathiness.

Purpose of the Study:

  • To review the diagnosis and treatment of arytenoid cartilage dislocation.
  • To evaluate the efficacy of endoscopic reduction for voice improvement.
  • To differentiate dislocation from vocal fold paralysis using diagnostic tools.

Main Methods:

  • Retrospective review of 63 patients treated for arytenoid cartilage dislocation.
  • Analysis of presenting symptoms, causes, and treatment outcomes.

Related Experiment Videos

  • Utilized strobovideolaryngoscopy, laryngeal electromyography, and laryngeal CT imaging for diagnosis.

    • Main Results:

    • Posterior dislocations were more common than anterior ones.
    • Endoscopic reduction, while challenging, was performed to realign vocal processes.
    • Significant voice improvement was observed post-treatment, irrespective of the time elapsed since dislocation.

    Conclusions:

    • Arytenoid cartilage dislocation is a treatable cause of vocal fold immobility.
    • Endoscopic reduction offers a viable therapeutic option for voice restoration.
    • Advanced imaging and functional tests aid in accurate diagnosis and differentiation from paralysis.