Your physician may refer you for a procedure called a Lumbar Epidural Steroid Injection. This procedure is used to treat swollen and inflamed spinal nerve roots often referred to as a "pinched nerve," which may cause low back and leg pain. The spinal nerves come from the spinal cord and exit the backbone to go to the lower part of your body and the legs.
Occasionally something rubs or irritates these nerves where they exit the backbone causing them to be swollen and inflamed. The source of irritation may be a ruptured, herniated, or bulging disc. Another source may be Spinal Stenosis, where arthritis of the spine, bone growth, or hardening of the ligaments begins to close the openings in the spine through which these nerves exit. The symptoms are as follows:
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Pain in the lower back
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Pain down one or both legs
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Numbness or tingling of your legs or feet
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Weakness in one or both legs or feet
This technique involves an injection of a steroid into an area of your lower back called the epidural space.
The epidural
space extends through the spinal canal from your head to
your tailbone. The spinal nerves pass through the epidural
space and are therefore bathed in this steroid (a solution
of anti-inflammatory medicine).
