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cochlear drill-out


Definition: a maneuver for implantation of electrodes in a cochlea in which the lumen of the scala tympani has been obliterated by the deposition of new bone as a result of the inflammatory process in labyrinthitis; the cochlear wall and new bone are drilled away so that the electrodes can be placed close to the remaining neurons of the auditory division of the 8th cranial nerve.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.