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The bone conduction implant - a review and 1-year follow-up

Journal article
Authors B. Hakansson
S. Reinfeldt
Ann-Charlotte Persson
K. J. F. Jansson
C. Rigato
M. Hultcrantz
Måns Eeg-Olofsson
Published in International Journal of Audiology
Volume 58
Issue 12
Pages 945-955
ISSN 1499-2027
Publication year 2019
Published at Institute of Clinical Sciences
Pages 945-955
Language en
Keywords Bone conduction, hearing aid, implanted transducer, active transcutaneous, anchored hearing-aid, experience, design, transducer, audiometry, surgery, device, Audiology & Speech-Language Pathology, Otorhinolaryngology
Subject categories Otorhinolaryngology


Objective: The objective of this study is to evaluate its safety and effectiveness of the bone conduction implant (BCI) having an implanted transducer and to review similar bone conduction devices. Design: This is a consecutive prospective case series study where the patients were evaluated after 1, 3, 6 and 12 months. Outcome measures were focussed on intraoperative and postoperative safety, the effectiveness of the device in terms of audiological performance and patient's experience. Study sample: Sixteen patients with average age of 40.2 (range 18-74) years have been included. Thirteen patients were operated in Gothenburg and three in Stockholm. Results: It was found that the procedure for installing the BCI is safe and the transmission condition was stable over the follow-up time. No serious adverse events or severe adverse device effects occurred. The hearing sensitivity, speech in noise and the self-assessment as compared with the unaided condition improved significantly with the BCI. These patients also performed similar or better than with a conventional bone conduction reference device on a softband. Conclusions: In summary, it was found that the BCI can provide a safe and effective hearing rehabilitation alternative for patients with mild-to-moderate conductive or mixed hearing impairments.

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