Q. Had epidural injection for left side back pain and now getting pain in the right side. Why?

Answered by
Dr. Chirag Ashok Berry
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Dec 10, 2019

Hello doctor,

I had an epidural injection in the left lower back for left leg pain and two months later, I am having pain in the leg and pain in right buttocks. I have been diagnosed with severe loss of disc space in L4-5. Is it unusual for this to happen? Is it logical to say that once you treated the left side that something could develop on the right side? I have done my MRI spine.

Dr. Chirag Ashok Berry

Orthopedics And Traumatology Spine Health Spine Surgery
#

Hello,

Welcome to icliniq.com.

From what I understand, you had an epidural injection at the left L4-5 interspace, and two months later you developed a new pain on the right side, and you are wondering if the injection has anything to do with this new pain.

Epidural injections are usually advised based on the side and location of your current radicular symptoms and the MRI (magnetic resonance imaging). Your physician may have suspected left L4-5 radiculopathy based on the above-mentioned findings. The effect of the medications that are injected usually lasts not more than three to four weeks. The idea is to cool down the inflammation till a time when your body can get used to the lesser space for the nerve or shrink the compressive elements with time.

Since you do have a loss of disc space in L4-5, I assume your symptoms are related to spinal stenosis. Often, the symptoms begin on one side and may progress to the other side over an unpredictably long period of time. The onset of your right side pain may have been incidentally two months following your left-sided injection.

I hope this helps. I will be happy to look into your MRI images to see if an epidural on your right-side L4-5 interspace may be right for you.


Investigations to be done:

Review MRI.

Probable diagnosis:

Worsening spinal stenosis, L4-5 degenerative disc disease.

Treatment plan:

Possible need for a right-sided epidural.


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