As spring moves north with the growing grass, the snarl of some 19 million powered lawnmowers is heard in the land.
All these mechanized grass cutters are far more dangerous than that vanishing antiquethe man-powered machine. But injuries that occur when hands or feet come in contact with whirling blades, though frequently serious, are at least obvious.
Power mowers also bring a more insidious hazard. In about a third of the accidents they cause, report Drs. Eric M.
Chazen and John L. Chamberlain III in the New England Journal of Medicine, power mowers act exactly like missile launchers. And a dangerous wound may be...