Scalar position characteristics and translocation rates of different lateral wall electrodes within the cochlear basal turn: a cone beam computed tomography study

This retrospective study systematically compared scalar position characteristics and translocation (STL) rates within the cochlear basal turn (CBT) across three different lateral wall (LW) electrodes.

Continue reading at PubMed →

Electrode design significantly influences translocation rates in the cochlear basal turn; surgeons and CI programs should consider CBCT-verified scalar position data when selecting lateral wall electrodes, though retrospective design limits causal inference.

Quantifying scalar translocation rates across electrode designs with imaging evidence can guide electrode selection and surgical technique to improve cochlear implant outcomes.

1. 01Retrospective CBCT (cone beam CT—a low-dose 3-D X-ray) study compared three lateral wall cochlear implant electrode designs.
2. 02Primary focus was scalar position (correct inner-ear channel placement) and translocation (slipping out of that channel) in the basal turn.
3. 03Differences in translocation rates between electrode types were quantified using imaging.
4. 04Published in European Archives of Otorhinolaryngology.
5. 05Retrospective design limits ability to establish causality between electrode design and outcomes.

PMID

42562903

DOI

10.1007/s00405-026-10431-5.

Journal

European Archives of Oto-Rhino-Laryngology

Publication type

research_article

Evidence level

4

Population

Cochlear implant recipients who underwent CBCT imaging of electrode placement in the cochlear basal turn

Intervention

Comparison of three lateral wall cochlear implant electrode designs

Comparator

Two alternative lateral wall electrode types serving as comparators