Fact-sheet: Arythenoid dislocation or subluxation

Updated on 04/23/2019 at 9:59 AM

Note : 0/10

Definition

Dislocation of the cricoarytenoid joint or the thyroarytenoid joint.

More often anterior or posterior displacement of the arytenoid cartilage.

In 80% of cases, secondary to trauma during intubation or extubation (trauma from the tube or the cuff during extubation).

Dysphonia

Dysphagia (swallowing disorder) +/-

Dyspnea/stridor in the most severe cases.

+/- pain.

Nasofibroscopy: immobility or impaired mobility of a hemilarynx with anterior displacement of the arytenoid.

CT with 3D reconstruction and right-left comparison, looking for an arytenoid cartilage displaced away from the cricoid articular surface.

Endoscopic exploration under general anesthesia.

Closed reduction of the dislocation, or open reduction if unsuccessful (without opening the joint)

- Recurrent laryngeal nerve palsy

- Tumor of the ventricle of Morgagni with tumoral blockage of the joint.