The Medical Boots are commonly used for ankle fractures, post surgery of the foot or ankle, and severe ankle or foot sprains / strains.  The Medical Boot comes in a variety of styles such as the Air Medical Boot which has an inflatable air bladder that inflates around the ankle area to reduce swelling and pain and provide more immobilization at the same time.  AirCast Medical Boot are cam walker The Medical Boots that gives the user a more cast-like feel in addition to having the air bladder.  The Air Cast Shell Medical Boot have an additional plastic shell that covers the top part of the foot, ankle, and lower leg area that distributes the pressure from the Velcro harnesses for a more comfortable fit.  The Medical Boot is another name for Cam Walker and Fracture Boot.