Related Experiment Video
Updated: Aug 1, 2026
08:06
Robotic Cochlear Implantation for Direct Cochlear Access
Published on: June 16, 2022
Cochlear implant extrusion in a young child--a preventive procedure
H C Harrison1, W P Gibson, P G Thompson
1Department of Otolaryngology, Royal Alexandra Hospital for Children, Sydney, Australia.
The Journal of Laryngology and Otology
|May 1, 1995
Summary
A cochlear implant extruded through the skin due to pressure necrosis. Angulating the implant before insertion can prevent this complication by conforming it to the skull
Area of Science:
- Otolaryngology
- Neurosurgery
- Biomedical Engineering
Background:
- Cochlear implants are devices that provide sound awareness for individuals with severe to profound hearing loss.
- Complications such as device extrusion can occur, necessitating surgical intervention.
- The Cochlear Mini System 22 Channel implant was used in this case.
Observation:
- A young girl experienced extrusion of her cochlear implant through the skin.
- The extrusion was successfully managed using a transposition flap.
- Pressure necrosis on the overlying tissues was identified as the likely cause.
Findings:
- The study identifies pressure necrosis from the implant as the cause of extrusion.
- A novel method of pre-insertion angulation of the implant is proposed.
- This angulation aims to match the skull's curvature, preventing tissue pressure.
Implications:
- Proper implant angulation may prevent extrusion complications.
- This technique could improve patient outcomes and reduce revision surgeries.
- The described method offers a preventative strategy for cochlear implant surgery.
