Hearing improvement after stapes surgery.

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  • アブミ骨手術の術後聴力成績

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Abstract

Hearing improvement after stapes surgery was investigated retrospectively on 41 ears undergone stapedotomy as an initial treatment by the author between April 1991 and March 1999.<BR>They included otosclerosis (27 ears), congenital foot plate ankylosis (7 ears), stapes-facial canal fixation (3 ears), van der Hoeve syndrome (4 ears), stapes fixation with incus-stapes malformation (2 ears) and stapes fixation with malformation of inner ear (2 ears).<BR>All of them present the stiffness curve hearing impairment in audiograms.<BR>Shuknecht-type Teflon wire pistons (TWPs) were used in the stapes surgery. TWPs had all incus attachments except for two cases of incus-stapes malformation in which malleus attachments were used.<BR>After the stapes surgery, both air and bone thresholds were significantly improved. However, three cases were not improved the hearing level as our expectation.<BR>We also recommended the Skeeter drill for minimal invasive technique to fenestrate the foot plate and amputate the crus.

Journal

  • Otology Japan

    Otology Japan 10 (3), 192-197, 2000

    Japan Otological Society

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