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Maxillofacial trauma patterns associated with external auditory canal fractures: Cone beam computed tomography
Ibrahim K Ali1, Kaustubh Sansare1, Freny R Karjodkar1
1Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
Summary
External auditory canal (EAC) fractures are common in maxillofacial trauma, particularly with mandibular injuries. This study highlights the association between EAC fractures and other facial bone fractures using CBCT imaging.
Area of Science:
- Radiology
- Maxillofacial Surgery
- Trauma Imaging
Background:
- Limited literature exists on external auditory canal (EAC) fractures from maxillofacial trauma.
- Previous studies primarily consist of isolated case reports.
- This is the first study to utilize cone beam computed tomography (CBCT) for evaluating EAC fractures.
Purpose of the Study:
- To determine the prevalence of external auditory canal (EAC) fractures following maxillofacial trauma.
- To assess the association between EAC fractures and other maxillofacial fractures.
- To evaluate the relationship between EAC fractures and the specific region of trauma.
Main Methods:
- Prospective evaluation of 100 patients over six months.
- Patients referred for CBCT due to temporomandibular joint or condylar fractures.
- Two experienced radiologists assessed EAC and associated maxillofacial fractures.
Main Results:
- External auditory canal (EAC) fracture was identified in 32% of patients.
- EAC fractures were associated with mandibular fractures in 68.75% of cases.
- A significant association was found between the region of trauma and the presence of EAC fractures.
Conclusions:
- External auditory canal (EAC) fractures are associated with maxillofacial trauma.
- The incidence of EAC fractures is higher with mandibular fractures compared to non-mandibular fractures.
