Definition of Metrics to Evaluate Cochlear Array Insertion Forces Performed with Forceps, Insertion Tool, or Motorized Tool in Temporal Bone Specimens

Figure 6

Comparison of insertion forces of cochlear implantation with 5 metrics. Bars represent mean ± SD of n insertions. NS: not significant. “Forceps” stands for manual insertion with forceps technique, “Hifocus tool” stands for Hifocus 1J electrode insertion tool technique, and “motorized” stands for our in-house motorized insertion tool technique. Statistical analysis was performed by analysis of variance. Each technique was compared against the manual insertion with forceps technique.