Table 1 The Stockholm workshop scale
From: Upper limb disability in Norwegian workers with hand-arm vibration syndrome
Vascular assessment | Sensorineural assessment | ||
|---|---|---|---|
Stage | Description | Stage | Symptoms |
0 | No attacks | 0SN | Exposed to vibration but no symptoms |
1 V | Occasional attacks affecting only the tips of one or more fingers | 1SN | Intermittent tingling with or without tingling |
2 V | Occasional attacks affecting distal and middle (rarely also proximal) phalanges of one or more fingers | 2SN | Intermittent or persistent numbness reducing sensory perception |
3 V | Frequent attacks affecting all phalanges of most fingers | 3SN | Intermittent or persistent numbness reducing tactile discrimination and/or manipulative dexterity |
4 V | As in stage 3, with trophic skin changes in the finger tips | ||