Objective: To investigate the importance of the high resolution computerized tomography of temporal bone in evaluation of traumatic lesions, particularly of the ossicular disruption.
Method: Ten patients with traumatic ossicles dislocation underwent preoperative CT scanning followed by surgical exploration of the middle ear.
Result: The radiographic finding was consistent with the operative demonstration for malleoincudal disarticulation (3 ears), incudostapedial dislocation (7 ears), and the fracture of temporal bone (8 ears).
Conclusion: The incus was the most vulnerable ossicle in the trauma to the middle ear. CT scans can diagnose exactly the damage position in middle ear.