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How I do it: Proximal cochlear implant electrode fixation using Ned's Knot.

Faisal Zawawi1, Sharon L Cushing2, Adrian L James3

  • 1Department of Otolaryngology - Head and Neck Surgery, The Hospital for Sick Children, University of Toronto, Canada; Department of Otolaryngology - Head and Neck Surgery, King Abdulaziz University, Jeddah, Saudi Arabia.

International Journal of Pediatric Otorhinolaryngology
|December 30, 2020
PubMed
Summary

Electrode extrusion in straight cochlear implants can be reduced using Ned's Knot technique. This simple method involves proximal fixation of the electrode around the incus buttress to improve outcomes.

Keywords:
Cochlear implantElectrode extrusion/migrationStraight electrode

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Biomedical Engineering

Background:

  • Electrode extrusion is a known complication of cochlear implant surgery.
  • Straight electrode designs are particularly susceptible to extrusion.
  • Minimizing extrusion is crucial for long-term cochlear implant efficacy.

Purpose of the Study:

  • To present a novel technique for securing straight cochlear implant electrodes.
  • To reduce the incidence of electrode extrusion in cochlear implant recipients.
  • To provide detailed instructions for a reliable fixation method.

Main Methods:

  • Detailed description of the Ned's Knot technique for proximal electrode fixation.
  • Utilizing the incus buttress as an anchor point for electrode stabilization.
  • Inclusion of written and video illustrations for procedural clarity.

Main Results:

  • The Ned's Knot technique offers a straightforward approach to electrode fixation.
  • Proximal fixation around the incus buttress effectively secures the electrode.
  • The technique is designed to mitigate the risk of electrode extrusion.

Conclusions:

  • Ned's Knot is an effective and easily implementable technique.
  • This method can significantly decrease the extrusion rate of straight cochlear implant electrodes.
  • Improved electrode stability enhances cochlear implant performance and patient outcomes.