EMPLOYEE WAS RELEASING THE BRAKE ON THE LOWER RAMP SHORE WIRE (HEAD END) AND THE BRAKE RELEASED IMPROPERLY ALLOWING THE HAND WHEEL TO SPIN RAPIDLY. THE WHEEL CAUGHT THE EMPLOYEE'S HAND AND CAUSED A LACERATION AND A FRACTURE TO THE RIGHT MIDDLE FINGER. EE WAS ALLOWED TO WORK. REPORTABLE FOR FRACTURE AND MEDICAL TREATMENT.