The Nobelpharma auditory system bone-anchored hearing aid: the Edmonton experience

Area of Science:

• Otolaryngology
• Biomaterials Science
• Audiology

Background:

• Titanium's osseointegration properties have been used for bone-anchored hearing aids since 1977.
• Percutaneous designs are effective for conductive and mixed hearing loss, with specific bone pure tone average thresholds.

Purpose of the Study:

• To evaluate the clinical experience with osseointegrated bone-anchored hearing aids.
• To assess indications, complications, and outcomes in a patient cohort.
• To explore the feasibility of a single-stage surgical procedure.

Main Methods:

• Review of 15 patients (aged 8-73) treated with osseointegrated bone-anchored hearing aids since May 1991.
• Analysis of surgical indications, intraoperative and postoperative complications.
• Evaluation of objective and subjective hearing results.

Main Results:

• The osseointegration technique is applicable to a wide age range and various hearing loss types.
• A single-stage surgical approach, completing the second stage during initial anesthesia, was successfully implemented.
• Both objective and subjective outcomes were assessed, demonstrating the utility of the device.

Conclusions:

• Osseointegrated bone-anchored hearing aids are a suitable treatment option for hearing loss.
• The single-stage surgical procedure offers potential benefits by reducing treatment delay.
• This technique expands the otolaryngologist's options for managing hearing loss effectively.