Banded intracochlear electrode array: evaluation of insertion trauma in human temporal bones
AuthorShepherd, R. K.; Clark, Graeme M.; Pyman, B. C.; Webb, R. L.
Source TitleAnnals of Otology, Rhinology and Laryngology
Document TypeJournal Article
CitationsShepherd, R. K., Clark, G. M., Pyman, B. C., & Webb, R. L. (1985). Banded intracochlear electrode array: evaluation of insertion trauma in human temporal bones. Annals of Otology, Rhinology and Laryngology, 94(1), 55-59.
Access StatusOpen Access
This is a publisher’s version of an article published in Annals of Otology, Rhinology & Laryngology published by Annals Publishing Company. This version is reproduced with permission from Annals Publishing Company. http://www.annals.com/
A banded free-fit scala tympani array was inserted into a basal turn of nine human cochleas to evaluate the trauma produced by the procedure. These nine cochleas, together with five nonimplanted controls, were serially sectioned and examined microscopically for damage to the membranous labyrinth, in particular the spiral ligament, the basilar and Reissner’s membranes, the stria vascularis, and the osseous spiral lamina. The severity and location of any trauma along the cochlear spiral were recorded. The results indicate that the insertion of the banded scala tympani array resulted in minimal mechanical damage, occurring primarily to a localized region of the spiral ligament. This would not result in significant neural degeneration, and therefore would not compromise the efficacy of multichannel cochlear prosthesis.
Keywordscochlear implant; intracochlear electrode; trauma; otolaryngology
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- Graeme Clark Collection