Table 4.
The model to predict responsible nerve roots in LDD patients with diagnostic doubt
| A | B | C | D | E | Total score | Result | Risk (%) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stenosis locations | Score | VAS score | Score | Neurological deficit | Score | VAS improvement | Score | SNRB nerve roots | Score | |||
| Neuroforamen | 4 | ≥8 | 3 | Motor | 1 | ≥75 | 7 | L4/5 Or L5/S1 | 3 | ≥16 | Very high | ≥89.3 |
| 5 ~ 7 | 2 | Sensory | 1 | 50 ~ 74 | 5 | 11 ~ 16 | High | 57.6 ~ 82.7 | ||||
| Lateral recess or Central | 0 | 3 ~ 5 | 1 | Reflexes | 1 | 25 ~ 49 | 3 | Others | 0 | 5 ~ 10 | Low | 12.5 ~ 49.4 |
| ≤2 | 0 | None | 0 | ≤24 | 0 | <5 | Very low | <8.6 | ||||
LDD lumbar degenerative disease, SNRB selective nerve root block, VAS Visual analog scale