Hand–arm vibration syndrome
Hand-arm vibration syndrome (HAVS) is the preferred name for the condition
caused by prolonged exposure of the hand-arm system to mechanical vibration.
It has three components: vascular, neurological and musculoskeletal. The vascu-
lar component is the most familiar, and this component is sometimes known as
vibration white finger or VWF. The term VWF is in fact sometimes misleadingly
used to refer to hand-arm vibration syndrome as a whole. Other names have also
been used in the past for the vascular component; ‘Raynaud’s phenomenon of
occupational origin’ is a precise but long-winded term, while names used in
specific trades include ‘dead finger’ and ‘grinder’s cramp’.