He specializes in total joint replacements and sports medicine. He has a special interest as well as extensive training and experience in advanced, cutting edge medical technologies such as hip arthroscopy, an evolving area of orthopedics designed to treat hip problems before they become arthritis. In addition, Dr. Johnson is highly skilled in MAKOplasty®, a robot-assisted technique for performing minimally invasive hip and/or partial knee replacements for the treatment of arthritis. He is trained in performing the direct anterior approach to hip replacements. This revolutionary technique allows for less pain, less time in the hospital, and faster time to walking normally.