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Related Experiment Video

Updated: Feb 2, 2026

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
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Dynamic Postural Stability and Hearing Preservation after Cochlear Implantation.

Christof Buhl1, Dmitri Artemiev1, Flurin Pfiffner1

  • 1Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital Zurich, University of Zurich, Zurich, Switzerland.

Audiology & Neuro-Otology
|November 15, 2018
PubMed
Summary

Cochlear implantation (CI) in one ear does not negatively impact dynamic postural stability within five weeks. Residual hearing loss after CI is not linked to changes in balance, suggesting CI is safe for gait function.

Keywords:
BalanceCochlear implantCochlear implantationDynamic postural stabilityFunctional gait assessmentHearing preservationPostural stability

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Area of Science:

  • Audiology
  • Neurology
  • Orthopedics

Background:

  • Dynamic postural stability is crucial for daily activities.
  • Cochlear implantation (CI) is a common treatment for severe to profound hearing loss.
  • The impact of CI on balance and gait is not fully understood.

Purpose of the Study:

  • To evaluate changes in dynamic postural stability after single-sided cochlear implantation (CI).
  • To determine if the degree of residual hearing loss correlates with post-CI dynamic postural stability.

Main Methods:

  • Prospective study including candidates for single-sided CI.
  • Functional Gait Assessment (FGA) and pure-tone audiograms were administered pre- and post-CI (4-6 weeks).
  • Statistical analyses were performed to compare pre- and post-operative FGA scores and assess correlations.

Main Results:

  • 48% of subjects had below-normal FGA scores pre-CI.
  • No significant difference in mean FGA scores was found between pre- and post-CI assessments (p=0.4).
  • No correlation was observed between postoperative hearing loss and changes in FGA scores (r=0.3, p=0.3).

Conclusions:

  • Single-sided CI does not adversely affect dynamic postural stability at 5 weeks post-surgery.
  • Loss of functional residual hearing is not associated with decreased dynamic postural stability after CI.