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Article: Correlations between pathologic changes in the stapes and conductive hearing loss in otosclerosis
- Article from:
- The Annals of Otology, Rhinology & Laryngology
- Article date:
- April 1, 1998
- Author:
CopyrightCopyright Annals Publishing Company Apr 1998. Provided by ProQuest LLC. (Hide copyright information)
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The goal of this temporal bone study was to quantify the relationship between specific histologic changes at the stapes footplate and the magnitude of the air-bone gap in otosclerosis. The study material comprised 26 specimens with otosclerosis and 37 age-matched controls. Detailed anatomic measurements were made on each histologic section through the stapes footplate in each bone, resulting in 30 different measurement parameters for each bone. For frequencies 250 to 2,000 Hz, the conductive hearing loss correlated highly with (p < .01) and appeared to be caused primarily by narrowing and loss of the annular ligament, especially at the posterior stapediovestibular joint space. The size ...