THE EMPLOYEE WAS WORKING ON THE GROUND NEAR A LOADER. THE LOADER OPERATOR DID NOT SEE HIM AND AS THE LOADER MOVED, HIS RIGHT KNEE WAS STRUCK BY THE LOADER BUCKET AND TWISTED AGAINST THE RIB. THE EMPLOYEE WAS SEEN BY A PHYSICIAN SEPT 5 FOR A KNEE STRAIN AND GIVEN A FULL DUTY RELEASE. ON OCT 13 HE HAD AN MRI THAT REVEALED A TORN MENISCUS AND HE HAD ARTHOSCOPIC REPAIR ON NOV 3.