PubMed · 5007203
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J R Gaskill. 1972. Tuning fork tests.. https://doi.org/10.1001/archotol.1972.00770080140018
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This paper presents the results of a national confidential comparative audit of stapedectomy: 185 operations by 28 consultants over a two-year period were retrospectively analysed. This included 10 revision procedures. Small fenestra stapedectomies accounted for 63 per cent of the total. Thirty-nine per cent of consultants operated on the second ear. Of the 168 stapedectomies in which the hearing change was known at six months, 87 per cent achieved improved hearing, eight per cent had no change and five per cent were worse. The overall complication rate was 30 per cent with a 'dead ear' rate of two per cent.
Conventional bone-conduction and bone-anchored hearing aids are tested with skull simulator devices; individual adjustments are reliant on psychoacoustic free-field audiometry, which can be quite demanding for the patient. A method is presented in which the induced skull vibrations are measured with an accelerometer and then analysed with Fast Fourier Transformation (FFT). With this method, frequency characteristics, harmonic distortion and dynamic response can be analysed.
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