An epidural steroid injection (ESI) is a minimally invasive procedure used to reduce inflammation and relieve pain in the spine. It involves injecting a corticosteroid medication, often combined with a local anesthetic, into the epidural space—the area surrounding the spinal nerves and spinal cord. This targeted delivery helps decrease inflammation around irritated nerves, which can result from conditions such as herniated discs, spinal stenosis, or sciatica. The procedure is typically performed under fluoroscopic (X-ray) guidance to ensure precise placement of the medication.
The effects of an epidural steroid injection can vary, but many patients experience significant pain relief within a few days to weeks, which can allow them to participate more effectively in physical therapy and daily activities. While the injection does not cure the underlying condition, it can reduce symptoms, improve mobility, and potentially delay or prevent the need for surgery. Most patients can resume normal activities shortly after the procedure, though minor soreness at the injection site is common. Repeated injections may be recommended based on symptom relief and medical guidance.
