Common crus reference electrode angular depth and insertion length calculations and locations
| Participant No. | CC Insertion Intended | Insertion Depth Angle | Insertion Length (mm) | Anatomic Location of the Reference Electrode Tip |
|---|---|---|---|---|
| 1 | Yes | –3° | 39 | Common crus |
| 2 | Yes | +26° | 66 | Superior canal |
| 3 | Yes | –30° | 42 | Posterior canal |
| 4 | Yes | –57° | 21 | Posterior canal |
| 5 | Yes | +21° | 46 | Common crus |
| 6 | Yes | –2° | 41 | Posterior canal |
| 7 | Yes | +45 | 51 | Common crus |
| 8 | No | NA | NA | Outside temporal bone |
Note:—NA indicates not appliable.