An infant case of delayed conductive hearing loss following head trauma

Otoscopic view of the left ear. A horizontal fracture line in the posterior–superior quadrant of the bony external auditory canal was observed.

Audiograms on initial examination (A), 3 years before the initial examination (B), and after the operation (C).

CT scan of the left temporal bone.

Surgical findings. The incudostapedial joint was not dislocated, but was almost fixed (A). The ossicular chain was reconstructed by interposition of the modified incus between the handle of the malleus and the superstructure of the stapes (B).