A new study shows that PRP (platelet-rich plasma) is effective for treating advanced osteoarthritis (OA) in older patients. The study, published in a recent issue of the The Orthopedic Journal of Sports Medicine, looked at 75 patients with advanced knee OA (Grade 3-4) and compared the difference between PRP treatment and cortisone injection. Patients who had the PRP reported significantly better improvement than those who had the steroid injection at both 3 and 6 months after receiving the respective treatments. This study is important because many of the studies looking at PRP have focused on younger patients with milder forms of OA (Grades 1-2). This paper showed that PRP is also effective for treating late-stage OA in people who are older than 67. Here at Valley Sports Physicians we’ve been performing PRP injections since 2007 – longer than anyone in New England and longer than most in the U.S. Few in the country have as much experience with PRP as we do.