crutches and stairs

We are often asked to instruct patients on stairs with crutches. One of the confusing things is which leg goes up or down first and how to maneuver crutches. Going up stairs, you should lead with your "good" leg to step up with, then bring your injured leg and crutches up last. Going down stairs, you lead with the crutches and injured leg, then step down with your good leg. Simply, up with the "good" first, down with the "bad" first.