Insertion Depth in Cochlear Implantation and Outcome in Residual Hearing and Vestibular Function

Abstract

The final outcome in residual hearing correlates very weakly with the angular insertion depth for depths above 405°. Postoperative loss of vestibular function did not correlate with the angular insertion depth or age at implantation. The surgical protocol used in this study seems to minimize the risk of postoperative vertigo symptoms.