Lumbar sympathetic block (LSB) is a minimally invasive procedure used to relieve pain in the lower back and legs caused by a variety of conditions, including complex regional pain syndrome (CRPS), neuropathic pain, and cancer-related pain. In this article, we will explore the benefits of LSB, the procedure itself, and how it can be an effective treatment option for patients with these conditions.

What is Lumbar Sympathetic Block?

The sympathetic nerves are part of the autonomic nervous system and control involuntary body functions, such as blood flow and sweating. LSB involves injecting a small amount of medication, such as a local anesthetic or steroid, into the lumbar sympathetic nerves located in the lower back to block nerve impulses in the affected area. This can reduce inflammation, swelling, and pain associated with various conditions.

Benefits of Lumbar Sympathetic Block

LSB is a safe and effective treatment option for patients with lower back and leg pain caused by CRPS, neuropathic pain, and cancer-related pain. This therapy is less invasive than other surgical treatments and can provide better pain relief with fewer side effects. LSB can also result in rapid pain relief and an improved quality of life.

The Procedure

During an LSB, a patient is given local anesthesia, and a needle is inserted into the lower back, targeting the lumbar sympathetic nerves using fluoroscopy or ultrasound. Once the needle is in place, a small amount of medication is injected into the nerves, blocking nerve impulses and reducing pain and inflammation in the affected area. The entire procedure typically takes less than an hour, and most patients can go home the same day.

Effectiveness of Lumbar Sympathetic Block

LSB has been shown to provide significant pain relief and improve function for patients with lower back and leg pain caused by CRPS, neuropathic pain, and cancer-related pain. Studies have shown that patients who undergo LSB experience a reduction in pain and an improvement in mobility, which can lead to an improved quality of life. The effects of LSB can last anywhere from a few weeks to several months, depending on the patient’s individual response.