Mark D. Brown is Professor and Chairman Emeritus of the Department of Orthopaedics and Rehabilitation, University of Miami Miller School of Medicine. He has been a practicing spine surgeon for 35+ years, with his Ph.D. thesis and all of his research being devoted to the cause, prevention, and cure of painful spinal disorders. He is a founding member of the International Society for the Study of Lumbar Spine, and his other memberships include the American Academy of Orthopaedic Surgery, American Orthopaedic Association, Association of Bone and Joint Surgeons, the Cervical Spine Research Society, Medical Advisory Board of PinnacleCare, and the North American Spine Society. He serves as a Consultant Reviewer for the Journal of Bone and Joint Surgery, on the Board of Associate Editors of Clincal Orthopaedics and Related Research, the Associate Editorial Board of Spine, and the Editorial Board of Journal of Spinal Disorders & Techniques.