Epidural Steroid Injection (ESI)

What is an epidural steroid injection?

An epidural steroid injection is a procedure in which your doctor injects steroid medication into the epidural space. The epidural space is a natural fat layer located inside the bony spinal canal but outside the area that holds the spinal fluid. It extends from the base of the skull to the base of the spine.

When a steroid (a strong anti-inflammatory medicine) is put into the epidural space, it can reach the spinal discs and nerves, reducing inflammation and relieving pain. The goal of an epidural steroid injection is to decrease back, neck, upper extremity pain, or lower extremity pain caused by one or more compressed or inflamed spinal nerves in the back or neck.

Overview of the ESI procedure

Here’s what to expect during an epidural steroid injection procedure:

• You will lie down on the table.
• The injection area is cleaned and numbed before the injection.
• Using fluoroscopic (X-ray) guidance, your physician will determine the appropriate path for the needle.
• Your doctor inserts a thin needle into the appropriate region and enters the epidural space using a syringe.
• Next, your doctor injects a small amount of contrast dye to make sure that the medication will flow exactly where intended.
• Then, your physician injects a small amount of steroid into the epidural space.

The steroid usually starts to work two days to two weeks after the injection. The pain relief varies for each individual, from no relief to long-term pain relief.

OrthoNC offers comprehensive spine expertise

OrthoNC’s spine specialists diagnose spine problems and design custom treatment plans built on a conservative, non-surgical approach. Most patients find relief through treatments including guided injections, specialized physical therapy, exercise, activity modification, and medication. When conservative care does not relieve symptoms, our highly skilled surgeon offers proven, evidence-based surgical options. Together with you, we will determine the right course of action.

Start your journey to a healthy spine. Find your spine expert, make an appointment online, or call us at (919) 562-9410 to schedule a spine consultation.