Table 2 Comparison of time inducing visible MEP using needle and surface electrodes throughout the operations
Time inducing MEP | Left foot | Right foot | Number | Percentage |
|---|---|---|---|---|
Needle electrode; Surface electrode with CP | Needle electrode; Surface electrode without CP | |||
Both at the same time | 14 | 15 | 29 | 36.25% |
Needle electrode first | 26 (9 without inducing visible MEP using surface electrode) | 25 (9 without inducing visible MEP using surface electrode) | 51 | 63.75% |
Surface electrode first | 0 | 0 | 0 | 0 |