EE SUPERVISOR WENT TO TALK WITH EE AT 1030 AND NOTICED THAT EE WAS LIMPING. WHEN ASKED ABOUT THE LIMP EE STATED THAT EE TWISTED KNEE WHEN EE WAS CLIMBING ONTO A D-11 DOZER. EE WAS TAKEN TO DOCTOR AND RELEASED FOR FULL DUTY. ADDITIONAL FOLLOW-UP INDICATED THAT AN ORTHOSCOPE IS NEEDED (12/15/04) TO DETERMINE THE EXTENT OF INJURY.