EE ATTEMPTED TO LIFT AND DUMP MATERIAL FROM HER ORE HOPPER AT LINE 303. AFTER 3 ATTEMPTS SHE WAS ABLE TO DUMP THE MATERIAL BUT WHILE DUMPING THE ORE SHE SAID SHE HEARD HER HAND ""POP"". SHE DID NOT REPORT THE INCIDENT TO HER MANAGER UNTIL 12/20/01, EXPLAINING THAT HER HAND WAS SWOLLEN AND KNOTTED BECAUSE OF THE INCIDENT. AFTER 6 WEEKS WE THE PHYSICIAN PRESCRIBED PHYSICAL THERAPY.