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Related Experiment Video

Updated: May 28, 2026

Robotic Cochlear Implantation for Direct Cochlear Access
08:06

Robotic Cochlear Implantation for Direct Cochlear Access

Published on: June 16, 2022

Cochlear implant failures: lessons learned from a UK centre.

L Masterson1, S Kumar, J H K Kong

  • 1Department of Otolaryngology, Cambridge University Hospitals Trust, UK. lmm398@doctors.org.uk

The Journal of Laryngology and Otology
|October 29, 2011
PubMed
Summary

Cochlear implant failure rates were 4.7% in adults and 4.1% in children, with device malfunction being the most common cause. Revision surgery generally maintained or improved audiological performance, highlighting the need for expertise in managing these complex cases.

Related Concept Videos

The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

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Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Audiology

Background:

  • Cochlear implantation is a vital treatment for severe hearing loss.
  • Device longevity and potential for failure necessitate understanding revision surgery outcomes.
  • Increasing cochlear implant use will lead to more revision procedures.

Purpose of the Study:

  • To review cochlear implant failure cases and subsequent revision surgeries.
  • To share lessons learned from managing cochlear implant device failures.
  • To assess audiological outcomes following cochlear implant revision.

Main Methods:

  • Combined retrospective and prospective study design.
  • Analysis of revision surgeries performed at a UK regional cochlear implant center.

Related Experiment Videos

Last Updated: May 28, 2026

Robotic Cochlear Implantation for Direct Cochlear Access
08:06

Robotic Cochlear Implantation for Direct Cochlear Access

Published on: June 16, 2022

  • Review of 746 cochlear implantations to identify failure and revision cases.

    • Main Results:

    • 33 (4.1-4.7%) cochlear implantations failed, requiring re-implantation.
    • Mean device failure times were 60 months (adults) and 35 months (children).
    • Causes included hard/soft device failure (20), medical issues (11), and electrode displacement (2); 80% had stable/improved hearing post-revision.

    Conclusions:

    • Cochlear implant device failure and revision surgery are increasing concerns.
    • Audiologists and otologists must be skilled in managing device failures and complications.
    • Expertise is crucial for successful cochlear re-implantation and patient outcomes.