Arytenoid Cartilage Dislocation: A 20-year Experience

Arytenoid cartilage dislocation is an infrequently diagnosed cause of vocal fold immobility. Seventy-four cases have been reported in the literature to date. Intubation is the most common origin, followed by external laryngeal trauma. Decreased volume and breathiness are the most common presenting s...

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Bibliographic Details
Published in:	Journal of voice 2005-12, Vol.19 (4), p.687-701
Main Authors:	Rubin, Adam D., Hawkshaw, Mary J., Moyer, Cheryl A., Dean, Carole M., Sataloff, Robert T.
Format:	Article
Language:	eng
Subjects:	Adolescent Adult Aged Arytenoid Cartilage - pathology Arytenoid dislocation Arytenoid subluxation Child Child, Preschool Diagnosis, Differential Female Hoarseness Humans Immobilization Intubation Intubation trauma Joint Dislocations - diagnosis Joint Dislocations - etiology Joint Dislocations - therapy Laryngeal CT Laryngeal electromyography Laryngeal trauma Laryngoscopy Male Medical Treatment Middle Aged Stroboscopy Tomography, X-Ray Computed Traumatic Injury Treatment Outcome Videostroboscopy Videotape Recording Vocal Cord Paralysis - diagnosis Vocal Cord Paralysis - etiology Vocal Cord Paralysis - therapy Vocal Cords - pathology Vocal fold hypomobility Vocal fold immobility Vocal fold paralysis Voice Disorders Voice Training
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Summary:	Arytenoid cartilage dislocation is an infrequently diagnosed cause of vocal fold immobility. Seventy-four cases have been reported in the literature to date. Intubation is the most common origin, followed by external laryngeal trauma. Decreased volume and breathiness are the most common presenting symptoms. We report on 63 patients with arytenoid cartilage dislocation treated by the senior author (RTS) since 1983. Significantly more posterior than anterior dislocations were represented. Although reestablishing joint mobility is difficult, endoscopic reduction should be considered to align the heights of the vocal processes. This process may result in significant voice improvement even long after the dislocation. Strobovideolaryngoscopy, laryngeal electromyography, and laryngeal computed tomography (CT) imaging are helpful in the evaluation of patients with vocal fold immobility to help distinguish arytenoid cartilage dislocation from vocal fold paralysis. Familiarity with signs and symptoms of arytenoid cartilage dislocation and current treatment techniques improves the chances for optimal therapeutic results.
ISSN:	0892-1997 1873-4588