Lumbar Epidural Steroid Injection

Lumbar Epidural Steroid Injection: Overview

This injection procedure is performed to relieve low back and radiating leg pain. The steroid medication can reduce the swelling and inflammation caused by spinal conditions, such as spinal stenosis, radiculopathy, sciatica and herniated discs. In some cases it may be necessary to repeat the procedure as many as three times to get the full benefit of themedication. However many patients get significant relief from only one or two injections.

POSITIONING THE PATIENT

The patient lays face down. A cushion under the stomach area provides comfort and flexes the back. In this position, the spine opens and allows for easier access to the epidural space. A fluoroscope assists the physician in locating the appropriate lumbar vertebra and nerve root. A local anesthetic is used to numb the skin.

STEP 1

All the tissue down to the surface of the lamina portion of the lumbar vertebra bone is anesthetized.

STEP 2

The physician slides a thicker needle through the anesthetized track.

Using the fluoroscope for guidance, the physician slides the needle toward the epidural space between the L-4 and L-5 vertebra.

STEP 3

A contrast solution is injected. The physician uses the fluoroscope to see the painful areas and to confirm the correct location of the needle tip.

STEP 4

A steroid-anesthetics mix is injected into the foraminal epidural space, bathing the painful nerve root with soothing medication.

STEP 5

The needle is removed, and a small bandage is applied to cover the tiny needle surface wound.