Execution:
- Use a brush like the one found in the handle of most reflex hammers, a piece of cotton or your fingers
- Then stroke the dermatomes in both the affected an unaffected limb
- To confirm changes in sensibility, you can also compare the sensation in different adjacent dermatomes by stroking across the borders of these dermatomes
Positive Outcome: Changes in sensibility compared to adjacent dermatomes or compared to the other side
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Hancock et al. (2011) | NA | 59 | 60 | 1.46 | 0.69 |
| Iversen et al. (2013) | NA | 44 | 55 | 0.99 | 1.01 |
| Comment: S1 sensory loss does not seem to be able to identify a specific level of lumbar disc herniation | |||||
