Osteoarthritis of the knee: who is most likely to benefit from intraarticular corticosteroid injections, and for how long?
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Short-term pain relief is greater with corticosteroid injection than with placebo injection. (SOR A, based on 2 meta-analyses.) Relief from steroid injections for osteoarthritis (OA) of the knee lasts at least 3 weeks. (SOR A, based on 2 meta-analyses.) Patients with effusions may have better pain relief than patients without, although both groups derive benefit. (SOR C, based on outcomes in the treatment arm of a randomized controlled trial [RCT].)
Evidence Based Practice 13(1): 04.