cochlear drill-out

cochlear drill-out

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.
Farlex Partner Medical Dictionary © Farlex 2012

coch·le·ar drill-out

(kok'lē-ăr dril'owt)
Implantation of electrodes in a cochlea in which the lumen of the scala tympani has been obliterated by the deposition of new bone due to 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 vestibulo cochlear.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Cochlear drill-out revealed the electrode in the SV after passing supero-lateral to a steep vertically oriented OSL and BM immediately anterior to the Y line (Figure 7a).
In two specimens, lateral temporal bone resection was performed to provide sufficient space for performing the cochlear drill-out. Two bony rings were preserved around the cochleostomy and RWM.
Accordingly, cochlear drill-out was conducted after electrode insertion.