EMPLOYEE WAS GETTING OUT OF THE SKIDLOADER. HE STEPPED ON THE BUCKET WITH HIS LEFT FOOT AND WASATTEMPTING TO STEP TO THE GROUND WITH HIS RIGHT FOOT WHEN HIS LEFT FOOT SLIPPED CAUSING HIT TO FALL TO THE CONCRETE FLOOR NEXT TO THE SKIDLOAD-ER. HE STRUCK HIS LEFT ELBOW ON THE CONCRETE CAUSING A BREAK IN THE ELBOW.