Patients
RESIDUAL
Residual hearing was measured at 6 weeks, 3 months, 6 months and 12 months postoperatively. After 6 weeks postoperatively, hearing preservation was significantly better in the picture-in-picture group (96% versus 72% in the without picture-in-picture group, Residual hearing preservation over a 1-year follow-up-period. In the picture-in-picture group, the percentage of patients with residual hearing ranged from 96% 6 weeks postoperatively to 76% at the end of the follow-up period. In the without picture-in-picture group, 62% of patients showed residual hearing at the end of the follow-up period. Differences between groups were significant 6 weeks postoperatively (Chi-Square test, 