Outdoor recreational and vocational hand injuries occur with a predict
able seasonal fluctuation and regional variation. An increasing demand
in less urban areas for efficient yard and garden waste removal, comb
ined with the availability of more affordable shredder/chipper machine
s, has increased their utilization. Potential hazards have been well r
ecognized, but, not surprisingly, this behavior pattern has concomitan
tly introduced another characteristic syndrome of self-inflicted opera
tor injury most prevelant in the fall and spring months. The seriousne
ss of the possible upper extremity mutilation caused by these devices
cannot be understated, as invariably, complex reconstruction modalitie
s are essential to restore a useful hand.