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OSSICULAR RECONSTRUCTION IN TYPE IV TYMPANOPLASTY Yuichi Nakano 1 pp.343-348
Published Date 1976/5/20
DOI https://doi.org/10.11477/mf.1492208345
  • Abstract
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 Twenty three cases of ossicular reconstruction in tympanoplasty with absent stapes crura are reported with their functional results. Of these cases 26% have been capable of bringing the air-bone gap within 15 dB or better and 25% were brought into the range of 30 dB or better. However, these results are rather poor when they are compared to the results in cases of ossicular reconstruction with the stapes intact, previously reported by the authors.

 The reason for this phenomena was, it was pointed out, that on the average there are less ossicular tissues with tympanic membrane defect and also less middle ear mucosa in cases of type IV tympanoplasty. In other words, the disease is more widespread in affect when the stapedial arch is missing than when it is present.

  In order to obtain optimum hearing results, a staged tympanoplasty should be recommended in cases of badly diseased ears with absence of ossicular tissues. Ossicular reconstruction should be deferred until the time when healed tympanic cleft with a functional tympanic membrane may be obtained.


Copyright © 1976, 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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