Issue N# 3 - 2006
Dehiscence of the anterior semicircular canal and otosclerosis: A case report
Authors : D.-Q. Nguyen, N. Morel, G. Dumas, K. Boubagra, S. Schmerber (Grenoble)
Ref. : Rev Laryngol Otol Rhinol. 2006;127,3:151-155.
Article published in french
Downloadable PDF document french
The dehiscence of the anterior semicircular canal is a new clinical entity, it is necessary to consider this when a gusher occurs during stapedial surgery. Case report: We report a rare case of dehiscence of the anterior canal associated with otosclerosis. This was revealed by a gusher during the initial stapedectomy. At 3 months, an obliteration of the dehiscence was necessary by middle cranial fossa approach (persistant vestibular symptoms), seven months later. Revision stapedial surgery resulted in complete closure of the air-bone-gap. Conclusion: High resolution CT scans of the temporal bone are the key to diagnosis. It is necessary to appreciate this pathology with advances in canal and vestibular surgery.
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