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Indication criteria and outcomes with the B onebridge transcutaneous bone‐conduction implant
Author(s) -
Riss Dominik,
Arnoldner Christoph,
Baumgartner WolfDieter,
Blineder Michaela,
Flak Stefan,
Bachner Anna,
Gstoettner Wolfgang,
Hamzavi JafarSasan
Publication year - 2014
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.24832
Subject(s) - implant , medicine , bone conduction , dentistry , surgery , audiology
Objectives/Hypothesis The aim of this study was to evaluate functional hearing gain, speech understanding, and preoperative bone‐conduction thresholds with the bone‐conduction implant Bonebridge. Study Design Retrospective study at a tertiary referral center. Methods Twenty‐four consecutive Bonebridge patients were identified. Nine patients suffered from combined hearing loss (HL), 12 from atresia of the external auditory canal and three from single‐sided deafness. One patient was lost to follow‐up. Twenty‐three patients were therefore analyzed. Results The overall average functional hearing gain of all patients (n = 23) was 28.8 dB (±16.1 standard deviation [SD]). Monosyllabic word scores at 65 dB sound pressure level in quiet increased statistically significantly from 4.6 (±7.4 SD) percentage points to 53.7 (±23.0 SD) percentage points. Evaluation of preoperative bone‐conduction thresholds revealed three patients with thresholds higher than 45 dB HL in the high frequencies starting at 2 kHz. These three patients had a very limited benefit of their bone‐conduction implants. Conclusions The Bonebridge bone‐conduction implant provides satisfactory results concerning functional gain and speech perception if preoperative bone conduction lies within 45 dB HL. Level of Evidence 4. Laryngoscope , 124:2802–2806, 2014