[Medical treatment of low back pain according to evidence-based medicine]

Results of therapy of low back pain with drugs (NSAIDs), locally injected corticosteroids, active physical therapy, back school and chiropractic are assessed according to "Evidence Based Medicine". The assessment after a trial period of therapy is difficult because clinical symptoms and signs of low back pain are non specific. There is no good correlation of clinical signs with the radiological images. The therapy is empiric since controlled randomized clinical studies have until now not shown that drugs, corticosteroids (epidural or intra facet-joint injections), back school, chiropractic or physical therapy give results better than with placebo.