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Cochlear implantation following temporal bone fracture

Published online by Cambridge University Press:  29 June 2007

Andrew E. Camilleri ,
Joseph G. Toner ,
Katie L. Howarth ,
Suzy Hampton  and
Richard T. Ramsden
Andrew E. Camilleri*
Affiliation:
Departments of Otolaryngology, Royal Infirmary, Manchester and City Hospital, Belfast, UK.
Joseph G. Toner
Affiliation:
Departments of Otolaryngology, Royal Infirmary, Manchester and City Hospital, Belfast, UK.
Katie L. Howarth
Affiliation:
Departments of Otolaryngology, Royal Infirmary, Manchester and City Hospital, Belfast, UK.
Suzy Hampton
Affiliation:
Departments of Otolaryngology, Royal Infirmary, Manchester and City Hospital, Belfast, UK.
Richard T. Ramsden
Affiliation:
Departments of Otolaryngology, Royal Infirmary, Manchester and City Hospital, Belfast, UK.
*
Address for correspondence: Mr A. E. Camilleri, F.R.C.S., Department of Otolaryngology, Wythenshawe Hospital, Southmoor Road, Wythenshawe, Manchester M23 9LT. Fax: 0161-291-2392
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Abstract

Seven cases of profound hearing impairment following either unilateral or bilateral temporal bone fracture are presented who were implanted with the Nucleus 22 channel or Ineraid devices. Six patients suffered bilateral temporal bone fractures. One patient had prior congenital unilateral profound hearing impairment. This patient suffered a unilateral temporal bone fracture. Six patients became regular users of their implants. One gained little benefit and became a non-user. Two of the regular users experienced facial nerve stimulation, which could not be programmed out. In these two cases the implant was removed and the contralateral ear successfully implanted. Implant-aided audiometry demonstrated a hearing threshold of 40–50 dB at nine months after switch-on. The reliability of computed tomography (CT) scanning in predicting cochlear patency in cases of temporal bone fracture will be discussed. The benefit of complimentary imaging with magnetic resonance (MR) is highlighted.

Keywords

Cochlear implantTemporal bone
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 113 , Issue 5 , May 1999 , pp. 454 - 457
Copyright
Copyright © JLO (1984) Limited 1999

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Footnotes

Presented at the Second International Base of Skull Congress (including the seventh Annual meeting of the American Skull Base Society), San Diego, California, June 29-A July 1996.

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