A lumbar sympathetic block is a minimally invasive procedure used to diagnose and treat certain types of nerve-related pain and circulation issues in the lower extremities. By targeting the sympathetic nerves along the lower spine, this treatment can help reduce pain, improve blood flow, and relieve symptoms related to conditions like complex regional pain syndrome (CRPS), peripheral neuropathy, and vascular insufficiency.
This procedure can also serve as a diagnostic tool to determine whether the sympathetic nervous system is contributing to a patient’s symptoms. For many, it opens the door to improved mobility and reduced reliance on medications.
What is it?
A lumbar sympathetic block targets the sympathetic nerves in the lower back to treat pain, circulation problems, and complex regional pain syndrome in the legs.
How is it performed?
Using fluoroscopic guidance, local anesthetic is injected near the lumbar sympathetic chain. The procedure takes about 30 minutes.
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Treatment Benefits
Patients often experience reduced burning, aching, or temperature-related discomfort in the legs after a successful lumbar sympathetic block. The injection may also improve skin color, temperature, and sweating abnormalities related to sympathetic nerve dysfunction. In addition to pain relief, it can support better circulation and allow for greater participation in physical therapy.
Who Can Benefit from This Treatment?
This treatment is commonly recommended for individuals with CRPS, diabetic neuropathy, or chronic leg pain linked to abnormal sympathetic nerve activity. It may also benefit those with circulation issues that have not responded to other interventions. A physical and diagnostic evaluation can help determine if a lumbar sympathetic block is the right fit for your condition.
Learn more about Lumbar Sympathetic Block by contacting the Minimally Invasive Spine and Pain Institute—our team is here to help you explore your options.
Aftercare for Lumbar Sympathetic Block
Following a lumbar sympathetic block, patients may experience temporary leg warmth, numbness, or weakness—these effects are expected and typically resolve within a few hours. Some mild soreness or bruising at the injection site may occur. Most people can return home the same day and resume light activities soon after, though it’s best to take it easy for the remainder of the day. Pain relief can be immediate or take a few days, depending on the underlying condition and individual response.
Tips for a Smooth Recovery
Follow these guidelines to support healing after a lumbar sympathetic block:
- Rest for the first several hours and avoid strenuous activity for 24 hours
- Use ice packs on the injection site if you experience mild swelling or soreness
- Monitor changes in leg temperature, color, or sweating as signs of treatment effectiveness
- Stay well-hydrated and maintain normal meals as tolerated
- Contact your provider if numbness, weakness, or discomfort persists longer than expected