EMPLOYEE & HIS PARTNER WERE LIFTING A WOODEN TIMBER, ONE MAN ON EACH END OF THE TIMBER. THE TIMBER WAS 12""X 12""X 6'LONG, WEIGHING APPROX. 175 LBS. EMPLOYEE USED HIS LEGS TO PICK THE TIMBER BUT THEN TWISTED WITH THE LOAD. ORTHOPEDIC SURGEON SAID NO WORK UNTIL FURTHER NOTICE.