Dehiscences of the bony horizontal segment of the facial canal are rather common in human adults. These facial canal dehiscences occur most offen in the region of the oval window. This study presents the observations of the facial canal in the oval window region in 427 operations for otosclerosis. The incidence of dehiscences in the facial canal to the middle ear space in otosclerosis was studied. Dehiscences were observed in 14 of the 427 patients (3.27%) who had a stapedotomy. This incidence is very low compared to the anatomical studies of the facial nerve in human cadaver temporal bones. Dehiscences of the facial canal are a variation of the normal anatomy of the facial nerve and these dehiscences occur sporadically in otosclerosis.

This content is only available via PDF.
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.