Spontaneous arytenoid dislocation and crico-arytenoid instability.

Area of Science:

• Otolaryngology
• Laryngology
• Vocal Cord Anatomy

Background:

• Arytenoid dislocation is an uncommon condition with an unclear pathophysiology.
• The classical theory attributes arytenoid dislocation to hemarthrosis.

Observation:

• This report details an unusual case of spontaneous arytenoid dislocation.
• The presented case challenges the prevailing hemarthrosis theory.

Findings:

• The study suggests arytenoid dislocation may be linked to congenital or acquired arytenoid instability.
• This instability can predispose individuals to dislocation following minor trauma.

Implications:

• The findings suggest a need to consider arytenoid instability in the differential diagnosis of arytenoid dislocation.
• Recommended management includes initial reduction, speech therapy, and investigation for underlying etiologies.