Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Robotic Cochlear Implantation for Direct Cochlear Access08:06

Robotic Cochlear Implantation for Direct Cochlear Access

4.0K
Robotic cochlear implantation is a procedure for minimally invasive inner ear access. Compared to conventional surgery, robotic cochlear implantation involves additional steps that need to be carried out in the operating room. In this article we give a description of the procedure and highlight the important aspects of robotic cochlear...
4.0K
Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process07:00

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process

1.5K
The present protocol describes the measurement of the electrically evoked stapedius reflex (eSR) via cochlear implant (CI). Two applications are discussed: intraoperative detection of eSR for verification of the coupling between the cochlear implant and the auditory nerve and postoperative measurement of eSR thresholds (eSRT) for CI...
1.5K
Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion03:58

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion

804
This protocol demonstrates a method for fusing pre-operative and post-operative computed tomography images for cochlear implant recipients. The approach may enhance the measurement accuracy of insertion depth and the center frequency of electrode array contacts. Additionally, this method has potential applications in anatomy-based fitting, an emerging area within the cochlear implant...
804
Chronic Implantation of Multiple Flexible Polymer Electrode Arrays08:54

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays

11.3K
Described below is a method for implantation of multiple polymer electrode arrays across anatomically distant brain regions for chronic electrophysiological recording in freely moving rats. Preparation and surgical implantation are described in detail, with emphasis on design principles to guide adaptation of these methods for use in other...
11.3K
The Miniature Pig: A Large Animal Model for Cochlear Implant Research06:16

The Miniature Pig: A Large Animal Model for Cochlear Implant Research

3.6K
Miniature pigs (mini-pigs) are an ideal large animal model for research into cochlear implants. Cochlear implantation surgery in mini-pigs can be utilized to provide initial evidence of the safety and potential performance of novel electrode arrays and surgical approaches in a living system similar to human...
3.6K
Implanting an Electrode Array and Optic Fiber into the Mouse Hippocampus02:51

Implanting an Electrode Array and Optic Fiber into the Mouse Hippocampus

831
This video demonstrates the stereotactic implantation of a wire electrode array and an optic fiber in the hippocampus of a mouse...
831

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Cochlear size variation in a large-scale international multicentre cohort.

Hearing research·2026
Same author

Cochlear Size and Shape Variation from the Russian Population and a New Cochlear Parameter for a Safe Cochlear Implant Electrode Insertion.

Journal of visualized experiments : JoVE·2026
Same author

A Unique Perspective: Intrapatient Comparison of Perimodiolar and Lateral Wall Cochlear Implant Electrodes.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same author

Testing a Cochlear Implant Electrode Insertion Training System for Optimal Electrode Array Placement in Different Inner Ear Anatomies.

Journal of visualized experiments : JoVE·2026
Same author

Response to: Morphometric measurements of the incomplete partition type II (IP-II) cochlea and implications on cochlear implantation.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same author

Cochlear size variation among the Argentinian population.

Brazilian journal of otorhinolaryngology·2025

Related Experiment Video

Updated: Jan 20, 2026

Robotic Cochlear Implantation for Direct Cochlear Access
08:06

Robotic Cochlear Implantation for Direct Cochlear Access

Published on: June 16, 2022

4.0K

Review on cochlear implant electrode array tip fold-over and scalar deviation.

Anandhan Dhanasingh1, Claude Jolly1

  • 1MED-EL Medical Electronics GmbH, Innsbruck, Austria.

Journal of Otology
|August 31, 2019
PubMed
Summary

Cochlear implant (CI) electrode tip fold-over occurred in 1.57% of cases, while electrode scalar deviation occurred in 22.38%. Pre-curved electrodes showed higher rates of scalar deviation compared to lateral-wall electrodes.

Keywords:
Electrode tip fold-overPre-curved electrodeScalar deviationStraight electrode

More Related Videos

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
07:00

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process

Published on: June 21, 2024

1.5K
Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion
03:58

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion

Published on: January 17, 2025

804

Related Experiment Videos

Last Updated: Jan 20, 2026

Robotic Cochlear Implantation for Direct Cochlear Access
08:06

Robotic Cochlear Implantation for Direct Cochlear Access

Published on: June 16, 2022

4.0K
Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
07:00

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process

Published on: June 21, 2024

1.5K
Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion
03:58

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion

Published on: January 17, 2025

804

Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Neurosurgery

Background:

  • Cochlear implantation (CI) is a vital treatment for severe to profound hearing loss.
  • Electrode insertion can lead to complications such as tip fold-over and scalar deviation.
  • Understanding the occurrence rates of these issues is crucial for improving surgical outcomes.

Purpose of the Study:

  • To determine the occurrence rates of cochlear implant electrode tip fold-over and scalar deviation.
  • To compare these rates across different commercial electrode types.

Main Methods:

  • A PubMed search was conducted for peer-reviewed articles published up to 2018.
  • Keywords included "Cochlear electrode tip fold-over" and "Cochlear electrode scalar position."
  • 38 articles investigating electrode-related issues in patient cases were included.

Main Results:

  • Electrode tip fold-over was reported in 1.57% of 3177 implanted ears, predominantly with pre-curved electrodes.
  • Electrode scalar deviation occurred in 22.38% of 2046 ears.
  • Pre-curved electrodes had a 32% scalar deviation rate, versus 6.7% for lateral-wall electrodes.

Conclusions:

  • Pre-curved electrodes are associated with a higher incidence of electrode insertion trauma, specifically scalar deviation.
  • This finding suggests a need to reconsider the clinical use of pre-curved electrodes.
  • Reducing electrode insertion trauma is paramount for preserving cochlear health in CI patients.