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[Spontaneous dislocation of the arytenoid cartilage]
Hideto Saigusa1, Yasuhiro Nonaka, Tetsuro Ikezono
1Department of Otolaryngology, Nippon Medical School, Tokyo.
Nihon Jibiinkoka Gakkai Kaiho
|March 17, 2005
Summary
A rare case of spontaneous posterior dislocation of the arytenoid cartilage caused voice problems. This study details a successful manual reduction technique for this unusual laryngeal condition.
Area of Science:
- Otolaryngology
- Laryngology
- Voice Disorders
Background:
- Arytenoid cartilage dislocation typically follows laryngeal trauma or medical procedures.
- Spontaneous dislocation is an uncommon etiology for voice disturbances.
Observation:
- A 53-year-old man presented with recurrent aphonia over three months.
- Laryngoscopy revealed left vocal fold elongation and posterolateral dislocation of the left arytenoid cartilage.
- Videofluorography showed abnormal superior and diagonal displacement of laryngeal structures during phonation.
Findings:
- The patient exhibited swelling and tenderness of the left cricoarytenoid joint.
- Electromyography confirmed normal intrinsic laryngeal muscle activity.
- The diagnosis was spontaneous posterior dislocation of the arytenoid cartilage.
Implications:
- This case highlights a rare cause of voice dysfunction.
- Manual reduction via a transesophageal balloon is a viable treatment option.
- Understanding spontaneous arytenoid dislocation aids in diagnosing and managing voice disorders.