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Implant survival rate in bone-anchored hearing aid users: long-term results.

Journal article
Authors E Wallberg
Gösta Granström
Anders Tjellström
Joacim Stalfors
Published in The Journal of laryngology and otology
Volume 125
Pages 1131-1135
ISSN 1748-5460
Publication year 2011
Published at Institute of Clinical Sciences, Department of Otorhinolaryngology
Institute of Clinical Sciences
Pages 1131-1135
Language en
Links dx.doi.org/10.1017/S002221511100144...
Subject categories Ophtalmiatrics

Abstract

Objective:To investigate the long-term survival rate of bone-anchored hearing aid implants, and to assess the number of patients who stop using their bone-anchored hearing aid.Method:Patients who underwent bone-anchored hearing aid surgery between September 1977 and December 1986 were identified from a prospective database. Data were collected from patient records.Results:During the study period, 143 patients were fitted with a bone-anchored hearing aid. Records from 132 patients were found, with a mean follow up of nine years. A total of 150 implants were installed in these patients. A total of 41 implants (27 per cent) were lost during follow up: 17 lost osseointegration, 16 were removed and eight were lost due to direct trauma. At the end of follow up, 119/132 (90 per cent) patients were still using their bone-anchored hearing aid.Conclusion:Despite a high incidence of implant loss over time, a large number of patients still continued to use their bone-anchored hearing aid.

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