Factors Associated with Incomplete Insertion of Electrodes in Cochlear Implant Surgery: A Histopathologic Study | Zendy

Joonhan Lee | Zendy; Joseph B. Nadol | Zendy; Donald K. Eddington | Zendy

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Factors Associated with Incomplete Insertion of Electrodes in Cochlear Implant Surgery: A Histopathologic Study

Author(s) -

Joonhan Lee,

Joseph B. Nadol,

Donald K. Eddington

Publication year - 2010

Publication title -

audiology and neurotology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.106

H-Index - 78

eISSN - 1421-9700

pISSN - 1420-3030

DOI - 10.1159/000316445

Subject(s) - temporal bone , cochlear implant , electrode array , basilar membrane , electrode , cochlea , spiral ligament , medicine , otosclerosis , spiral ganglion , anatomy , implant , cochlear implantation , surgery , audiology , chemistry , organ of corti

Atraumatic and complete insertion of the electrode array is a stated objective of cochlear implant surgery. However, it is known that obstructions within the cochlea such as new bone formation, cochlear otosclerosis, temporal bone fracture, and cochlear anomalies may limit the depth of insertion of the electrode array. In addition, even among patients without obvious clinical or radiographic indicators of obstruction, incomplete insertion may occur. The current study is a histopathologic evaluation of possible sources of resistance to insertion of the electrode array using the temporal bone collection of the Massachusetts Eye and Ear Infirmary.

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