The aim of this study
was to compare audiological test results obtained from a sound processor (SP) attached to a Softband with those obtained from direct (abutment connection) bone conduction implant systems and magnetic passive bone conduction implant systems with different magnet strengths on patients implanted at our clinic. Twenty-four patients who were implanted with either an abutment or magnetic bone conduction implant system between January 2012 and December 2014 were analyzed for hearing results, such as free-field hearing thresholds, direct bone conduction hearing thresholds, and speech discrimination scores with aided and unaided conditions Both magnetic and direct osseointegrated bone conduction implant systems, as well as the Softband system, provide good hearing outcomes when compared with unaided performance; however, the abutment connection system gives better hearing thresholds in the higher frequencies. No significant difference in hearing gain was found between the Softband system, magnet 5, and magnet used by the patient. Magnetic and direct bone conduction hearing implant systems are both effective for rehabilitation of conductive and mixed hearing loss when conventional hearing aids cannot be used. However, patients with high-frequency hearing loss may be better suited to an abutment connection system if they are not satisfied with high-frequency hearing gains provided via the trial Softband system preoperatively and should be counseled accordingly.
Hearing loss Bone conductive implant Hearing aids and assistive Listening devices Auditory rehabilitation Headband test
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Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
The research protocol was approved by the Kocaeli University Ethics Committee and performed in accordance with the ethical regulations of the Declaration of Helsinki and Turkish law and regulations. (KOÜ HAYDEK 2014/331).
Informed consent was obtained from all individual participants included in the study.
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