Related Experiment Video
Updated: Jul 10, 2026

Step-by-Step Stapedotomy through Transcanal Exclusive Endoscopic Approach
Published on: March 5, 2022
Operative management of a posterior semicircular canal dehiscence
Anthony A Mikulec1, Dennis S Poe
1Department of Otology and Laryngology, Harvard Medical School/Massachusetts Eye and Ear InfirmaryBoston, Massachusetts 02114, USA.
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.

