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Articles linked to this work by shared authors, journal, and citation graph.

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Updated: Dec 26, 2025

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Immediate and 1-Year Outcomes with a Slim Modiolar Cochlear Implant Electrode Array.

Nedim Durakovic1, Dorina Kallogjeri1, Cameron C Wick1

  • 1Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|March 18, 2020
PubMed
Summary

The slim modiolar electrode (SME) offers reliable cochlear implant insertion with comparable speech outcomes to other devices. While hearing preservation shows promise, consistent results may vary.

Keywords:
cochlear implantationelectrode array placementhearing preservationlow-frequency hearingperimodiolar electrodesspeech recognition scorestip fold-over

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Biomedical Engineering

Background:

  • The slim modiolar electrode (SME) is a newer cochlear implant (CI) technology designed for precise electrode placement.
  • Understanding its performance, including insertion accuracy and patient outcomes, is crucial for clinical adoption.

Purpose of the Study:

  • To evaluate the immediate and 1-year outcomes of cochlear implantations using the slim modiolar electrode (SME).
  • To assess electrode insertion accuracy, speech perception, and hearing preservation with SME.

Main Methods:

  • A consecutive case series of 326 cochlear implantations (CIs) using SME was reviewed.
  • Intraoperative X-rays and postoperative CT scans assessed electrode position (tip rollover, scalar translocation).
  • Speech outcomes (CNC words, AzBio sentences) and hearing preservation were evaluated at 3, 6, and 12 months.

Main Results:

  • A 7% tip rollover rate was observed, which improved with experience and design modifications.
  • Speech perception scores at 1 year showed significant improvements from pre-surgery levels.
  • 20% of patients with preservable hearing maintained it at the 1-year mark.

Conclusions:

  • SME facilitates reliable insertion in the scala tympani with consistent perimodiolar positioning.
  • Speech performance with SME is comparable to other cochlear implant devices.
  • While hearing preservation may be improved compared to older electrodes, outcomes remain variable.