Table 1.
Description of the filaments of the Semmes-Weinstein Monofilament Test.
| Evaluator size | Target force in grams | Thresholds | Grade |
|---|---|---|---|
| 1.65 | 0.008 | Normal | 5 |
| 2.36 | 0.02 | ||
| 2.44 | 0.04 | ||
| 2.83 | 0.07 | ||
| 3.22 | 0.16 | Diminished Light Touch | 4 |
| 3.61 | 0.4 | ||
| 3.84 | 0.6 | Diminished Protective Sensation | 3 |
| 4.08 | 1 | ||
| 4.17 | 1.4 | ||
| 4.31 | 2 | ||
| 4.56 | 4 | Loss of Protective Sensation | 2 |
| 4.74 | 6 | ||
| 4.93 | 8 | ||
| 5.07 | 10 | ||
| 5.18 | 15 | ||
| 5.46 | 26 | ||
| 5.88 | 60 | ||
| 6.10 | 100 | ||
| 6.45 | 180 | ||
| 6.65 | 300 | Deep Pressure Sensation only | 1 |
Evaluator size, gram force (needed to bend them), the clinical meaning of each filament, and the grade (1–5) used for statistical analyses. These numbers and evaluations are cited from ‘Touch-Test Sensory Evaluator Instructions' 2011 North Coast Medical, Inc., Morgan Hill, CA, USA.