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  • Title: A retrospective analysis of the efficacy of epidural steroid injections.
    Author: Rosen CD, Kahanovitz N, Bernstein R, Viola K.
    Journal: Clin Orthop Relat Res; 1988 Mar; (228):270-2. PubMed ID: 2963720.
    Abstract:
    Forty patients were studied retrospectively to evaluate the effect of epidural steroid injections on low back pain and sciatica characteristic of spinal stenosis or a herniated lumbar disc. All but one of these patients had radicular symptoms. The average age was 55 years, and the average follow-up time was eight months. All patients were injected by the same anesthesiologist with 2 cc of Depomedrol-40. Thirty-six patients received either one, two, or three injections. Four patients received either four or five injections. The overall results were poor, with about 60% of patients reporting varying degrees of relief from leg and back pain immediately after injection. However, at follow-up examination, only 24% were asymptomatic; 40% reported no change in preinjection numbness, weakness, or pain; and approximately 35% had varying degrees of relief with no consistent pattern. Of those who had complete relief, there was no correlation between relief of pain, age, or number of injections. From this study, it appears that approximately 50% of patients with radicular symptoms may receive temporary relief with steroid injection. However, long-term relief occurs in less than 25% of patients.
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