Kansas Orthopaedic Center, PA Since the practice was founded by Tyrone D. Artz, M.D. in 1978, Kansas Orthopaedic Center has grown from a single physician, specializing in surgery of the hand and upper extremities and total joint replacement, to a multi-physician practice, representing numerous sub-specialties in orthopaedics and physical medicine. Today, KOC doctors treat a wide range of orthopaedic problems caused by injury and illness. Most importantly, Kansas Orthopaedic Center offers more than just the latest in medical technology. Our doctors have a personal commitment to meeting the needs of their patients. This is a foundation for the high quality of care offered by Kansas Orthopaedic Center.