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 Experiment Videos

Cochlear structures after implantation of a perimodiolar electrode array.

B Richter1, K Jaekel, A Aschendorff

  • 1Department of Otolaryngology-Head and Neck Surgery, University Clinic Freiburg, Killianstrasse 5, D-79106 Freiburg i.Br., Germany. richter@hno1.ukl.uni-freiburg.de

The Laryngoscope
|May 19, 2001
PubMed
Summary

This study evaluated a perimodiolar electrode array prototype in human temporal bones. The array achieved modiolar proximity but caused significant intracochlear trauma upon explantation, deeming it unsuitable for clinical use.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

The calcimimetic etelcalcetide restores cardiac function in chronic hyperphosphatemia via calcium sensing receptor-cAMP activation.

Kidney international·2026
Same author

Conjoined Parasitic Twins (Cephalo-Thoracopagus Parasiticus) in a Free Ranging Northern Bat (Eptesicus nilssonii): A Micro-CT Anatomic and Genetic Survey.

Anatomia, histologia, embryologia·2026
Same author

Case Report: Facial nerve schwannoma: comprehensive surgical management with nerve reconstruction and hearing rehabilitation.

Frontiers in surgery·2026
Same author

Classification of Follow-up Rehabilitation ("AHB") in the Context of Postoperative Cochlear Implant (CI) Care.

Laryngo- rhino- otologie·2025
Same author

Assessing MRI interpretability of the orbit, paranasal sinuses, and nasopharynx in cochlear implant patients.

Frontiers in neurology·2025
Same author

The influence of CI electrode array design on the preservation of residual hearing.

Frontiers in neurology·2025

Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Neurosurgery

Background:

  • Cochlear implant electrode arrays aim for modiolar proximity to optimize auditory nerve stimulation.
  • Conventional electrode arrays may lack precise positioning within the cochlea.

Purpose of the Study:

  • To evaluate a perimodiolar prototype electrode array with a Teflon positioner for modiolar proximity in human temporal bones.
  • To assess intracochlear trauma associated with insertion, explantation, and re-implantation of the prototype array.

Main Methods:

  • Perimodiolar prototype electrode arrays were inserted into 12 human temporal bone specimens.
  • Electrode position was confirmed macroscopically and via cochlear x-ray.
  • Intracochlear structures were examined using light microscopy after insertion, explantation, and re-implantation.

Related Experiment Videos

Main Results:

  • Macroscopic and radiographic analysis confirmed close proximity of electrodes to the modiolar wall.
  • Insertion and initial positioning caused minimal damage in some specimens.
  • Explantation resulted in varying degrees of intracochlear trauma, with re-implantation causing significant damage.

Conclusions:

  • The perimodiolar electrode array prototype with Teflon positioner is not recommended for clinical use.
  • The risk of intracochlear trauma, particularly during explantation and re-implantation, makes it unsuitable, especially for pediatric patients.