How do nerve blocks alleviate back pain?

Nerve blocks alleviate back pain primarily by interrupting pain signals. When a nerve block procedure is performed, a local anesthetic, sometimes in combination with corticosteroids, is injected near specific nerves that are transmitting pain signals from the painful area of the back to the brain. By blocking these nerves, the transmission of pain messages is disrupted, leading to a reduction in pain perception.

This process addresses the underlying mechanism of pain rather than merely providing temporary relief or enhancing physical conditions like blood circulation or muscle growth. Therefore, nerve blocks can serve not only to diminish pain but also to facilitate participation in rehabilitation therapies, contributing to long-term recovery and improved functionality for individuals suffering from specific back pain conditions.