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Updated: Sep 20, 2025
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Robotic Cochlear Implantation for Direct Cochlear Access
Published on: June 16, 2022
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Implementation of Robot-Assisted Minimally Invasive Cochlear Implantation: A Feasibility Study
Anne-Lise Fourez1, Akil Kaderbay1, Charles Villerabel1
1Department of ENT and Head and Neck Surgery, University Hospital Gui de Chauliac, University of Montpellier, Montpellier Cedex 5, France.
Summary
Robot-assisted cochlear implant surgery proved safe and efficient in a pilot study. The robotic system enabled successful electrode array insertion in most cases, with high drilling accuracy and no facial nerve complications.
Area of Science:
- Neurosurgery
- Otolaryngology
- Medical Robotics
Background:
- Cochlear implantation is a standard treatment for severe to profound hearing loss.
- Minimally invasive surgical techniques are continuously being explored to improve outcomes and reduce complications.
Purpose of the Study:
- To evaluate the efficiency and safety of robot-assisted image-guided cochlear implant surgery.
- To assess the feasibility of a direct tunnel approach for cochlear implantation using a robotic system.
Main Methods:
- Prospective, interventional, monocentric study involving adult patients undergoing unilateral cochlear implantation.
- Robotic system used for drilling a tunnel to the cochlea, with inclusion criteria based on safe trajectory planning.
- Primary outcome measure was the success rate of electrode array insertion through the robotically drilled tunnel.
Main Results:
- Nine out of ten robot-assisted surgeries were successful, with one burr failure.
- High drilling accuracy observed: 0.13 mm (facial nerve), 0.14 mm (chorda tympani), 0.2 mm (round window).
- Successful electrode array insertion was achieved in all robotically drilled tunnels; no facial palsy occurred.
Conclusions:
- Robot-assisted image-guided cochlear implantation using a direct tunnel approach is safe and efficient.
- The robotic system facilitates precise drilling and successful electrode array insertion, offering a promising alternative to standard techniques.
