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Updated: Nov 21, 2025

Robotic Cochlear Implantation for Direct Cochlear Access
Published on: June 16, 2022
Auditory Brainstem Implant in Adult Patient With Cochlear Ossification From Otosclerosis
Laura H Christopher1, Kathryn Noonan2, Zachary Barnard3
1Division of Neurotology, House Clinic, Los Angeles, California.
Objective:
The objective is to describe auditory brainstem implantation in a case of extensive cochlear otosclerosis.
Patient, Intervention, And Results:
A case is presented of a 65-year-old male with bilateral cochlear otosclerosis and profound sensorineural hearing loss. Imaging studies showed distorted cochlear anatomy bilaterally and ossification of cochlear ducts. He underwent successful placement of an auditory brainstem implant using a retrosigmoid craniotomy approach.
Conclusions:
Extensive cochlear otosclerosis may distort cochlear anatomy such that cochlear implantation is expected to have a poor outcome. Auditory brainstem implantation may be an additional treatment option in these patients.
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