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DOI: 10.1055/s-0041-1728413
Clinical and radiological evaluation of a new straight electrode array
Objective This study compared electrode array design, dislocation behavior and clinical setting of a new straight electrode array with 26mm in lengths.
Methods This retrospective study included 201 ears implanted between 2013 and 2019 inserted with lateral wall electrode arrays (MED-EL Flex24, Flex26, Flex28 and FlexSoft) with special focus on the new Flex26. Scalar position, dislocation, point of dislocation, tip foldover and partial insertion have been evaluated with rotational tomography.
Results The new Flex26 showed no signs of partial insertion, tip foldover or scalar dislocation. Angular insertion depth is increasing with the length of the array. The longest electrode array (FlexSoft) showed the highest dislocation rate. Straight electrode arrays dislocate in the second cochlear turn at approximately 360°.
Conclusion The new Flex26 is expanding the portfolio of straight arrays with more length and insertion depth compared to the Flex24 but without the dislocation rate of the Flex28 and FlexSoft. The position of intracochlear dislocation of lateral wall arrays is design specific and in the second cochlear turn.
Poster-PDF A-1676.pdf
Publication History
Article published online:
13 May 2021
© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
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