MINER WAS DRIVING SHUTTLE CAR OVER ROUGH SPOTS HIT BUMP AND JAMMED NECK ON CANOPY OF BUGGY. RETURNED TO WORK THINKING HE WOULD FEEL BETTER. HEADACHE GREW WORSE AND NUMBNESS IN HANDS INCREA SED. MINER DROVE SELF TO HOSPITAL. HAD SURGERY ON C5 AND C6 DISKS.