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Updated: May 20, 2026
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Robotic Cochlear Implantation for Direct Cochlear Access
Published on: June 16, 2022
Our experience with split electrode array implant for obliterated cochlea
Summary
Split electrode array cochlear implantation is effective for ossified cochleas. This method improves auditory performance in both children and adults with profound deafness.
Area of Science:
- Otolaryngology
- Neurosurgery
- Audiology
Background:
- Cochlear ossification presents challenges for hearing restoration.
- Split electrode arrays offer potential advantages in navigating ossified cochleas.
Purpose of the Study:
- To evaluate the efficacy of split electrode array cochlear implantation in ossified cochleas.
- To assess auditory outcomes using the Category of Auditory Perception (CAP) score.
Main Methods:
- Retrospective case study of six cochleae (3 adult, 3 pediatric) with ossification.
- Cochlear implantation using a split electrode array system.
- Auditory performance assessed with the CAP score at 1-year follow-up.
Main Results:
- Mean inserted electrodes: 18.3; mean functioning electrodes: 14.3.
- Mean CAP scores at 1 year: 6 for children, 8 for adults.
- One case of transient facial nerve twitching, managed by electrode adjustment. No facial palsy or vestibular disorders.
Conclusions:
- Split electrode array cochlear implantation yields good auditory outcomes in ossified cochleas.
- The design facilitates greater electrode insertion and potentially reduces facial nerve stimulation.
