Can you tell me the success rate of an epidural steroid injection?

Unsure: The efficacy of epidural glucocorticoids remains unclear because of conflicting results from randomized controlled trials.The best evidence for benefit comes from trials for patients with radiculopathy due to a herniated disc and demonstrates short-term, but not long-term, benefit. Epidural injections for non-specific low back pain and spinal stenosis are of unproven benefit.

See Below...: Outcome measures (success rates) vary widely and depend on the site of injection, the number of injections given, the time elapsed post injection and any pre-existing conditions and/or reasons for requiring the injection. Have a look at the link below: http://www.Aspmn.Org/conference/documents/2a.Epiduralsteroidinjections-areviewoftherecentliterature.Pdf.

ESI success rate: Epidural steroid injection is indicated in radicular pain. When done under fluoroscopic guidance and radiographic confirmation through the use of contrast, >50% of patients receive some pain relief as a result of lumbar epidural steroid injections.

Hard to Say: Some people it works well and others it doesn't or there are other issues for their pain. In our practice we see most people who get good results it takes typically two injections to get sustained relief.