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.
Condition type link name
superior-canal-dehiscence
Page Condition Type
Page Condition - Overview
Overview
Page Condition - Etiology
Etiology
Page Condition - Complications
Complications
Page Condition - Diagnosis
Diagnosis
Page Condition - Treatment
Treatment
Page Condition - Outcomes
Outcomes
Page Condition - Glossary
Glossary
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.
A portion of grafted bone is placed over the eroded area of the superior semicircular canal.