Robert J. Hedderman, M.D. General Orthopaedics, Total Joint Replacement, Trauma, Sports Medicine, and Carpal Tunnel. Dr. Robert J. Hedderman's areas of orthopaedic interest are in sports medicine, joint replacement, and general orthopaedics. He is certified by the American Board of Orthopaedic Surgery. Dr. Hedderman enjoys spending time with ....