Superior Canal Dehiscence

Superior Canal Dehiscence is when the bony cap over the superior semicircular canal has eroded away and the tough covering (dura) that protects the temporal lobe can make contact with the inner membranes of this canal causing disequilibrium.

Treatment for Superior Canal Dehiscence

If the symptoms are troublesome, surgery is indicated. This involves general anesthesia with a middle fossa craniotomy and repair of the bony cap over the superior semicircular canal.

A portion of grafted bone is placed over the eroded area of the superior semicircular canal.