Table 2.
Test applied to the patient population (n = 246) with cervical spinal stenosis
| Monitoring modality | Monitorings applied | Baseline recording | ||
|---|---|---|---|---|
| Out of 246 cases | Mean tests per patient | Normal | Abnormal/No potential | |
| cm-EP | 241 (98.0%) | 2.6 | 58 | 180/3 |
| Sm-EP | 7 (2.8%) | 2.4 | NVM | |
| cs-EP | 104 (42.3%) | 1.0 | 16 | 74/14 |
| ss-EP | 2 (0.8%) | NVM | ||
| nc-EP | 231 (93.9%) | 1.4 | 67 | 163/1 |
| ns-EP | 27 (11.0%) | 1.1 | NVM | |
| F-Wave | 2 (0.8%) | NVM | ||
| EMG | 219 (89.0%) | 2.6 | No Spontaneous Activity | |
Tests: recorded muscle pairs or stimulated nerve pairs in a given modality, NVM normative value missing
cm-EP Cerebro-muscular evoked potentials, cs-EP cerebro-spinal evoked potentials, ns-EP neuro-spinal evoked potentials, nc-EP neuro-cerebral evoked potentials, sm-EP spino-muscular evoked potentials, ss-EP spino-spinal evoked potentials