Cochlear implant is done in:
MIC Surgical approach for placing cochlea implant = Facial Recess approach (Posterior tympanotomy) which involves doing a coical I mastoidectomy. From the middle ear the electrodes are then introduced into the scala tympani through the round window. Recently Veria technique (Non-Mastoidectomy technique) is gaining popularity for cochlear implantation. It uses transcanal approach.Advantage of Vera techniqueSimpleLess chances of injuring facial nerveSuitable in young children where mastoid has not developed fully.
Scala vestibuli
Scala tympani
Cochlear duct
Endolymphatic duct