What is a LES Injection? How does it work?

LESIs are used to treat persistent lower back and leg pain, Sciatica symptoms, and pain resulting from Spondylosis. Your doctor will inject an anti-inflammatory corticosteroid into the epidural space next to your spine. This medication flows around within the space, and relieves swelling and pain by coating the targeted nerve roots.

Benefits from a LES Injections

This is a minimally invasive procedure that provides some immediate relief and allows patients to resume normal amounts of daily activity with less recovery time. Patients may need several treatments, and when symptoms are relieved it is evidence of a specific nerve root causing problems. This information allows your doctor to provide targeted injections around specific nerve roots.

When will I see results?

Within the first few days post injection pain relief has been reported, although most patients may feel discomfort -both are normal. Your doctor’s office may ask you to journal pain levels, and will call to follow up the day after an injection. Typically after the second injection patients will see the best results.


BEFORE- Your doctor will need to know about any current medications and may ask you to stop taking them in the days before the procedure.

PROCEDURE: IV medications will be given to help a patient relax, you will remain conscious during the procedure to provide the doctor with feedback. After being positioned properly, your lower back will be sterilized and a local anesthetic injected. Your physician will use video x-ray equipment to place the needle and contrast dye to ensure correct needle placement. The corticosteroid is then injected and you will be asked about any sensations you may be feeling. This procedure normally takes about 15 minutes.

Risk Factors

There is a risk of complication with any medical procedure. Take time to discuss treatment options and any questions you may have with your physician, before agreeing with a procedure.