BONEBRIDGE Bone Conduction Implant in Adults

Eligibility Details: Inclusion Criteria: - Adults, 18 years of age or older at the time of implantation - Conductive or mixed hearing loss, defined as: - Conductive hearing loss with pure‐tone average (PTA) for bone conduction thresholds better than or equal to 25 dB at 500, 1000, 2000 and 3000 Hz - Mixed hearing loss with PTA for bone conduction thresholds better than or equal to 45dB at 500, 1000, 2000, and 3000 Hz - Air‐bone gap greater than or equal to 30 dB at 500, 1000, 2000, and 3000 Hz - Ability to benefit from amplification as defined by a monosyllabic (CNC) word score of 30% correct or better - Bilateral BONEBRIDGE can be considered if the difference in PTA for bone conduction thresholds is 10 dB or less between the right and left ears - Prior experience with acoustic or bone conduction hearing aids, unless candidate is unable to wear amplification for medical reasons - Able to complete testing materials in English - CT scan indicating the patient's anatomy is adequate to enable placement of the implant - Ability to undergo general anesthesia - Appropriate motivation and expectation levels - Stated willingness to comply with all study procedures for the duration of the study Exclusion Criteria: - Evidence that hearing loss is retrocochlear in origin - Skin or scalp condition precluding use of external audio processor - Suspected cognitive impairment or organic brain dysfunction