Operative management of a posterior semicircular canal dehiscence.
OBJECTIVE
The objective of this study was to describe the operative management of posterior canal dehiscence.


METHODS
A transmastoid approach to and plugging of the posterior canal was performed for posterior semicircular canal dehiscence (PSCD).


RESULTS
Postoperatively, the patient exhibited improvement in conductive hearing loss and vestibular symptoms.


CONCLUSIONS
PSCD can cause symptoms identical to that of superior semicircular canal dehiscence. Successful PSCD plugging can be performed without visualization of the actual area of dehiscence.
Department of Otology and Laryngology, Harvard Medical School/Massachusetts Eye and Ear InfirmaryBoston, Massachusetts 02114, USA.
Anthony A
AA
Mikulec
Dennis S
DS
Poe
D000328:Adult; D005072:Evoked Potentials, Auditory; D005260:Female; D005500:Follow-Up Studies; D006314:Hearing Loss, Conductive / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D007759:Labyrinth Diseases / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D013506:Otologic Surgical Procedures / Q000379:methods; D012665:Semicircular Canals / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D014717:Vertigo / Q000209:etiology; D014724:Vestibular Function Tests