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Lumbar Sympathetic Blocks

Lumbar sympathetic blocks are nerve blocks that are injected around or into the sympathetic nerves, which are located on either side of the spine in the lower back.

How it Works

A lumbar sympathetic block takes 10 to 30 minutes. X-ray imaging is used in order to ensure that the needle is in the right place. The local anesthetic and the steroid work to block pain signals that are sent from the nerves that enter the legs. This helps to reduce overall pain.


Lumbar sympathetic blocks may be performed in cases of:

  • Peripheral vascular disease
  • Complex regional pain syndrome
  • Neuropathy
  • Leg pain


You will feel immediate relief from the local anesthetic in the injection. This is only temporary, but you will have long term relief when the steroid kicks in two to three days later. If you respond well to the first injection, you may be a candidate for future injections. The total number of injections that you need depends on the source of your pain.

Temporary pain and soreness at the injection site is normal. Although you will need a ride home following your injection, you will be able to return to normal activities the next day.

Contact Allied Pain & Spine Institute to schedule an appointment at one of our convenient locations.

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