Stuck disc - TMJ

Case contributed by Dr Andrew Dixon

Presentation

Right TMJ closed lock.

Patient Data

Age: 40
Gender: Male
MRI

MRI of Temporomandibular Joints

There is abnormally reduced anterior translation of the mandibular condyles on mouth opening. The posterior band of the right TMJ articular disc remains 'stuck' within the mandibular fossa with stretching of the anterior portions of the disc. This condition in known as stuck disc and is the cause of the patient's symptoms. Normal capture of the left TMJ articular disc can be seen.

Annotated image

Zoomed view of right TMJ during open mouth imaging demonstrating reduced anterior translation of the mandibular condyle and stuck articular disc which remains within the mandibular fossa (red arrow) rather than moving forward.

Case Discussion

Right stuck disc.
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Case information

rID: 17914
Case created: 24th May 2012
Last edited: 10th Nov 2015
System: Head & Neck
Tag: tmj
Inclusion in quiz mode: Included

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