WORKER WAS PULLED TO THE GROUND TWISTING RIGHT KNEE AS TRAIL CABLE BEING POSITIONED MOVED DUE TO SLACK SHIFTING AT A CROSSING POLE. THIS WAS TREATED AS A FIRST AID CASE WITH THE WORKER PERIODI CALLY EXPERIENCING DISCOMFORT. A DECISION WAS MADE FIR ORTHOSCOPIC OUTPATIENT SURGERY ON FRIDAY MAY 31, THE LAST DAY OF HIS WORK WEEK. THE WORKER RETURNED TO WORK ASSIGNMENTS ON MONDAY JUNE 3