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Epidural steroid injections are commonly used for the treatment of lumbar radiculopathies which have failed other conservative measures such as physical therapy or non-steroidal anti-inflammatories. Although the use of such injections has risen considerably over recent years, their efficacy remains unclear. This randomised trial compared disability following epidural steroids, epidural saline or sham injections.
Of 461 patients presenting with chronic radiculopathy (duration >12 weeks), 116 patients met the inclusion criteria and were enrolled in the study. Among several exclusion criteria were patients with secondary gain issues who would be unlikely to respond favourably, prior surgery, pregnancy, deformity, morbid obesity, cauda equina syndrome, severe weakness and severe pain (referred for surgery).
Two control groups were used, one of which received a sham …
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