Role of canaloplasty

The sharp anterior tympanomeatal angle, where the oblique ear canal meets the tympanic membrane, can significantly alter the sound pressure levels and impedances at various sites in front of the drum, especially at high frequencies. A resonance-induced amplification of sound pressure of up to 20 dB...

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Bibliographic Details
Published inIndian journal of otology Vol. 19; no. 4; pp. 159 - 163
Main Author Taneja, M
Format Journal Article
LanguageEnglish
Published Muzaffarnagar Medknow Publications Pvt Ltd 01.10.2013
Medknow Publications and Media Pvt. Ltd
Medknow Publications & Media Pvt. Ltd
Subjects
Drilling
Ear diseases
Eardrum
Ears & hearing
Hearing loss
Otolaryngology
Otology
Plastic surgery
Skin & tissue grafts
Thermometers
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Summary:The sharp anterior tympanomeatal angle, where the oblique ear canal meets the tympanic membrane, can significantly alter the sound pressure levels and impedances at various sites in front of the drum, especially at high frequencies. A resonance-induced amplification of sound pressure of up to 20 dB occurs in the normal ear canal at frequencies of 2,800-3,000 Hz, depending on the length and diameter of the canal. {Figure 1}{Figure 2}{Table 1}{Table 2}{Table 3} Discussion Canaloplasty is a procedure to widen the external auditory canal usually posteriorly and superiorly by removing all overhangs lateral to tympanic annulus as to become an inverted cone, while meatoplasty is widening of the auditory meatus for aeration to mastoid cavity.
ISSN:0971-7749
2249-9520
DOI:10.4103/0971-7749.124503