Mayo Clinic proceedings
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To describe the indications, rationale, techniques, alternatives, contraindications, complications, and efficacy of lumbar and caudal epidural corticosteroid injections. ⋯ A thorough analysis of the few available controlled studies and their limitations indicates that this treatment is probably efficacious for patients with certain lower-extremity radicular pain syndromes when intermediate-term (2 weeks to 3 months) results are assessed after injection. More studies are needed to elucidate further the most beneficial candidates and techniques.