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Selective Nerve Blocks Selective Nerve Blocks are performed near the spine to diagnose the specific spinal nerve that is the root source of chronic back and leg pain. This procedure also can reduce inflammation around the selected nerve root, which has the effect of decreasing or relieving pain. During the procedure, the patient is usually given a local anesthetic. The physician then locates, under fluoroscopy, a specific spinal nerve root. A needle is introduced through the skin into the area adjacent to the nerve root, and medication is then injected into the area bathing the nerve root. The medications usually include an anesthetic and steroid. Selective Nerve Blocks are performed on an outpatient basis, and the procedure usually takes 30 to 45 minutes. - view animation
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