By Deborah Westergaard, M.D. Dallas | Regen Experts Dallas & Plano Treating Knee Arthritis in Dallas For decades, the conventional explanation for knee osteoarthritis was simple: the cartilage wears away, the bones rub together, and eventually you need a knee replacement. I believe that explanation is incomplete. In many patients, the cartilage is not the primary problem—it is the victim. Modern research increasingly recognizes osteoarthritis as a disease of the entire osteoc