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Post-traumatic bifid condyle: the pathogenesis analysis
Zhi Li1, Kamardine Ahmed Djae, Zu-Bing Li
1Key Lab for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
Summary
Trauma to the temporomandibular joint (TMJ) can cause a bifid condyle, a condition where the condylar head splits. The severity and location of the trauma, along with healing capacity, influence its development and appearance.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthodontics
- Radiology
Background:
- Temporomandibular joint (TMJ) trauma can lead to condylar deformities.
- Bifid condyle is a rare consequence of TMJ injury, impacting joint function.
- Understanding its pathogenesis is crucial for effective treatment.
Purpose of the Study:
- To investigate the characteristics of bifid condyle resulting from TMJ trauma.
- To analyze the pathogenesis and contributing factors of post-traumatic bifid condyle.
- To correlate trauma severity and location with bifid condyle morphology.
Main Methods:
- Retrospective analysis of four cases with bifid condyle secondary to TMJ trauma.
- Review of patient complaints, injury history, and radiographic findings.
- Correlation of trauma characteristics with condylar morphology.
Main Results:
- A correlation exists between the degree of condylar trauma and the appearance of a bifid condylar head.
- Severe fractures may lead to Y-shaped condyles and TMJ ankylosis.
- Slight trauma to the articulating surface can result in a condylar groove.
Conclusions:
- Post-traumatic bifid condyle can develop with insufficient remodeling capacity after condyle trauma.
- Trauma severity, site, and relation to lateral pterygoid muscle insertion influence bifid condyle appearance and orientation.
- Bifid condyle is a distinct entity requiring consideration in TMJ trauma management.
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