Temporomandibular joint ankylosis: a case report

Area of Science:

• Anatomy
• Oral and Maxillofacial Surgery
• Developmental Biology

Background:

• Temporomandibular joint (TMJ) ankylosis is a debilitating condition characterized by the fusion of the mandibular condyle and temporal bone.
• Ankylosis can arise from trauma, infection, or developmental abnormalities, leading to restricted jaw movement and facial asymmetry.
• Early diagnosis and intervention are crucial for managing TMJ ankylosis and mitigating its long-term effects on craniofacial development.

Observation:

• A unique case of extensive osseous temporomandibular joint ankylosis was identified in a cadaver during anatomical dissection.
• The specimen exhibited a distinct bird-like facial deformity, indicative of a significant mandibular growth disorder.
• Specific abnormalities included underdevelopment of the mental region and enlarged antegonal notching of the mandible.

Findings:

• The observed facial deformity and mandibular abnormalities were strongly associated with the presence of TMJ ankylosis.
• The nature of the manifestations suggested that the ankylosis likely initiated during an early stage of skeletal development.
• This case highlights the profound impact of early-onset TMJ ankylosis on craniofacial morphology.

Implications:

• This case underscores the importance of recognizing early signs of TMJ ankylosis to prevent severe craniofacial deformities.
• Understanding the developmental impact of TMJ ankylosis can inform surgical and orthodontic treatment strategies.
• Further research into the etiology and developmental pathways of TMJ ankylosis is warranted to improve patient outcomes.