A selective nerve block is a medical procedure used to target a specific nerve or group of nerves to interrupt pain signals traveling to the brain. By injecting an anesthetic, and sometimes other medications, near the nerve, doctors can temporarily reduce or eliminate pain in a particular area of the body. These blocks are often used to diagnose the source of pain, as well as to understand which nerves are contributing to chronic or acute discomfort. Unlike general anesthesia, which affects the entire body, a selective nerve block focuses on a precise location, allowing for targeted relief without widespread numbness.
The procedure is typically guided by imaging techniques such as X-ray, ultrasound, or fluoroscopy to ensure accurate placement of the needle and medication. Patients may experience immediate relief, while others notice gradual improvement as inflammation and nerve irritation decrease. Selective nerve blocks are commonly used in conditions involving the spine, joints, or extremities, and can help clinicians map out the nerve pathways responsible for pain. This targeted approach makes them a valuable diagnostic and monitoring tool in pain management.
