Autologous PRP vs. HA injections for pain, function, activity improvement in knee OA .
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Article Intra-Articular Injections of Platelet-Rich Plasma versus Hyaluronic Acid in the Treatment of Osteoarthritic Knee Pain: A Randomized Clinical Trial in the Context of the Spanish National Health Care System
Int J Mol Sci. 2016 Jul 2;17(7).55 patients with Kellgren-Lawrence grade I-III knee osteoarthritis were randomized to receive either intraarticular injections of autologous platelet-rich plasma (PRP) or hyaluronic acid (HA). The purpose of this study was to compare these two injection therapies in terms of improvement in pain, function, and daily/sports activity, assessed at 3 or 6 months post-treatment. The results of this trial demonstrated comparable improvement between interventions at both time-points. In a subgroup of patients with KL grade II knee OA only, treatment with PRP injections resulted in significantly greater improvement in KOOS activities of daily life scores after 3 and 6 months, pain after 6 months, and sports & recreation activity after 6 months when compared to HA injections.
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