He treats adults with disorders of the hip and knee and has extensive experience in joint replacement surgery, including both first-time and revision hip and knee replacement. Dr. Sterling has a special interest in post-traumatic arthritis of the hip and knee, unicompartmental arthroplasty of the knee, and treatment of avascular necrosis of the femoral head.He came to Johns Hopkins after working for 12 years as a hip and knee surgeon at the University of Maryland Medical Center. He is fellowship-trained in both orthopaedic traumatology and orthopaedic joint replacement.At the Johns Hopkins Department of Orthopaedic Surgery, Dr. Sterling directs the adult hip and knee replacement fellowship, helping train the next generation of orthopaedic surgeons.