Variability in surgical techniques for cochlear implantation: an international survey study. (4th July 2022)

• Record Type: Journal Article
• Authors: Kant, Ellen; Markodimitraki, Laura M.; Stegeman, Inge; Thomeer, Hans G. X. M.
• Is Part Of: Cochlear implants international. Volume 23:Number 4(2022)
• Page Start: 195
• Page End: 202
• Publication Date: 2022-07-04
• Subjects: Cochlear implantation -- Surgical technique -- Position -- Fixation -- Survey -- International; Cochlear implants -- Periodicals; 617.882
• DOI: 10.1080/14670100.2022.2051242
• Languages: English
• ISSNs: 1467-0100

Abstract

Abstract : Objective: This study aimed to gain insight into current practices regarding the surgical techniques used for positioning and fixation of internal components of the cochlear implant. Methods: A questionnaire focused on surgical techniques used for cochlear implantation was distributed among 441 cochlear implant surgeons. Descriptive statistics were reported. Results: The questionnaire was completed by 59 surgeons working in 13 different countries. The most preferred incision shapes were the S-shape (41%) and the C-shape (36%). The preferred implantation angle for the receiver/stimulator device was either 45° (64%) or 60° (30%), relative to the Frankfurter Horizontal Plane. Most respondents used a drilled bony well with (42%) or without a subperiosteal pocket (31%) to fixate the receiver/stimulator device. All respondents used the facial recess approach. Most used the round window insertion technique to enter the scala tympani (73%). Approximately half of the respondents preferred the lateral wall electrode array, whereas the other half preferred the perimodiolar electrode array. During their career, most (86%) changed their technique towards structure preservation and minimizing trauma. Conclusion: This study indicates variability in the surgical techniques used to position and fixate the internal components of the cochlear implant. Additionally, surgical preference transits towards structure preservation and minimal invasiveness.