Extracochlear electrode number and scalar position—final results after coassessment using O-arm data
| No. of Extracochlear Electrodes | Scalar Position at 180° | Scalar Position at 360°a | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | ST | Int | SV | ST | Int | SV | |
| Advanced Bionics (n = 5) | 2 (40%) | 1 (20%) | 2 (40%) | 3 (60%) | 1 (20%) | 1 (20%) | 2/3 (67%) | 1/3 (33%) | |||
| Cochlear (perimodiolar) (n = 12) | 6 (50%) | 3 (25%) | 2 (17%) | 1 (8%) | 6 (50%) | 5 (42%) | 1 (8%) | 3/9 (33%) | 5/9 (56%) | 1/9 (11%) | |
| Cochlear (straight) (n = 31) | 26 (84%) | 1 (3%) | 1 (3%) | 2 (6%) | 1 (3%) | 16 (52%) | 12 (38%) | 3 (10%) | 5/21 (24%) | 13/21 (62%) | 3/21 (14%) |
| MED-EL (n = 13) | 10 (77%) | 1 (8%) | 2 (15%) | 9 (69%) | 4 (31%) | 7/11 (64%) | 4/11 (36%) | ||||
| Oticon (n = 3) | 1 (33%) | 1 (33%) | 1 (33%) | 1 (33%) | 2 (67%) | 1/2 (50%) | 1/2 (50%) | ||||
| Total (n = 64) | 45 (70%) | 7 (11%) | 8 (13%) | 2 (3%) | 2 (3%) | 35 (55%) | 24 (38%) | 5 (7%) | 18/46 (39%) | 23/46 (50%) | 5/46 (11%) |
Note:—ST indicates scala tympani; Int, intermediate position; SV: scala vestibuli.
↵a Some electrode arrays did not pass 360° depth, so the number of measurable cases at 360° was less than at 180°. The number of cases is indicated.