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Temporomandibular joint ankylosis following mastoiditis: report of a case
T H Faerber1, R L Ennis, G A Allen
1Graduate Training Program, Truman Medical Center, Kansas City, MO 64108.
Abstract:
A case of TMJ ankylosis following otitis media and mastoiditis is described and its treatment presented. The infectious etiology of ankylosis is reviewed, with emphasis on mastoid infections. Theories are presented as to the possible mechanisms by which such infections can spread into the glenoid fossa.
Insights
This case study details TMJ ankylosis caused by middle ear and mastoid infections. It reviews infectious causes and how these infections may spread to the temporomandibular joint (TMJ) glenoid fossa.
Area of Science:
- Otolaryngology
- Oral and Maxillofacial Surgery
- Infectious Diseases
Background:
- Temporomandibular joint (TMJ) ankylosis is a debilitating condition characterized by the fusion of the jawbone to the skull base.
- Infectious etiologies, particularly those originating from the middle ear and mastoid, are a less common but significant cause of TMJ ankylosis.
- Understanding the pathways of infection spread is crucial for timely diagnosis and effective treatment.
Observation:
- A case of TMJ ankylosis is presented, originating after a severe episode of otitis media and mastoiditis.
- The patient's history and clinical presentation indicated a direct link between the mastoid infection and the development of TMJ ankylosis.
- Radiographic and clinical examinations confirmed the presence of ankylosis and its probable infectious origin.
Findings:
- The infectious etiology of TMJ ankylosis, specifically from mastoiditis, is reviewed, highlighting its potential for intra-articular spread.
- Mechanisms by which mastoid infections can invade the glenoid fossa, leading to ankylosis, are discussed.
- Successful treatment of the TMJ ankylosis following the infectious episode is presented.
Implications:
- This case underscores the importance of considering otologic infections as a potential cause of TMJ ankylosis.
- Early recognition and management of middle ear and mastoid infections may prevent the development of TMJ ankylosis.
- Further research into the precise mechanisms of infectious spread can refine diagnostic and therapeutic strategies for TMJ ankylosis.

