How do you use a roller bandage to cover a wound on the leg?

To cover a wound on a leg using a roller bandage, gauze must first be applied to the injury. The main point of a roller bandage is to secure other dressings for the wound. A roller bandage, as the name suggests, is rolled around the wound and then tied off. The knot should be placed directly over, or as close as possible to the location of the wound.