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FUNCTIONAL MIDDLE EAR OBLITERATION Yasuya Nomura 1 pp.475-480
Published Date 1979/6/20
DOI https://doi.org/10.11477/mf.1492208919

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  • Abstract
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 The following surgical procedures for the treatment of cholesteatoma as well as chronic otitis media were used :

 1. Mastoidectomy is performed through the retroauricular incision. Thorough removal of disease is essential. For this reason, the bridge and the posterior buttress are taken down.

 2. The incur and head of the malleus are removed in order to clean the attic. The malleus handle is also removed if necessary.

 3. During the above procedures, the posterior canal skin is elevated from the posterior bony wall. The eardrum is continuously detached from the sulcus, thus exposing the middle ear cavity. The procedures do not require plasty of the ear canal which is kept intact.

 4. After cholesteatoma is completely removed, the mastoid bowl, the attic and the tympanic cavity are obliterated using the retroauricular subcutaneous tissue, the periosteum, the temporal muscle and its fascia.

 5. A free fascia] graft is used to close the defect in the eardrum from the inside. The graft is supported by the pedicled temporal muscle, which covers the stapes. No tympanoplasty nor ossiculoplasty is performed.

 6. Drainage is placed in the subcutaneous space for three days. Saline soaked Gelfoam is introduced into the ear canal to face the fascia. The ear canal is packed with gauze.

 The postoperative hearing was better than anticipated.


Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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