Comparison of the Outcomes of Lateral Wall, Perimodiolar, and Midscala Electrodes in Cochlear Implantation Surgery: A Meta-Analysis

Cochlear implant (CI) is the standard of care for most cases of severe-to-profound hearing loss. Different electrodes are available for CI. OBJECTIVE: To compare the lateral wall, midscala, and perimodiolar electrodes in CI surgery in terms of trauma to the cochlea and hearing preservation (if there is residual hearing)....

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Electrode array geometry affects both surgical and audiological outcomes in cochlear implantation; clinicians should review specific comparative findings from this meta-analysis when counselling patients or selecting electrode type, though individual patient anatomy remains a key determinant.

Electrode array selection is one of the most consequential pre-surgical decisions in cochlear implantation, and a meta-analysis synthesising comparative outcomes across all three major array geometries provides the highest-quality evidence available to guide that choice.

1. 01Meta-analysis compares lateral wall, perimodiolar, and midscala electrode arrays across surgical and audiological outcomes.
2. 02Published in International Archives of Otorhinolaryngology, a peer-reviewed journal.
3. 03Synthesises data from multiple studies to identify which array geometry yields superior results.
4. 04Outcomes likely include speech perception scores, insertion depth, and complication rates.
5. 05Findings may inform pre-surgical electrode selection for cochlear implant candidates.

PMID

42877938

DOI

10.1055/s-0046-1820087.

Journal

International Archives of Otorhinolaryngology

Publication type

meta_analysis

Evidence level

1a

Population

Cochlear implant recipients implanted with lateral wall, perimodiolar, or midscala electrode arrays

Intervention

Cochlear implantation with lateral wall, perimodiolar, or midscala electrode arrays

Comparator

Head-to-head comparison across three electrode array geometries