Efficacy of hyaluronic acid vs placebo for pain relief in knee OA; meta-analysis of RCTs .
Hyaluronic acid injections relieve knee pain
J Fam Pract. 2005 Sep;54(9):758-679 randomized controlled trials were included in this meta-analysis investigating the efficacy of hyaluronic acid for pain relief in patients with knee osteoarthritis. Only placebo-controlled, double-blind randomized trials were considered for inclusion. Data on pain were pooled at 1 week, 5-7 weeks, 8-12 weeks, and 15-22 weeks post-injection. Results demonstrated significantly greater pain relief with hyaluronic acid compared to placebo at 5-7 weeks and 8-12 weeks, but not in the analysis of data at 15-22 weeks.
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