Medial branch blocks and facet joint injections are both commonly used in pain management to evaluate and treat pain that originates from the small joints of the spine, known as the facet joints. A medial branch block targets the tiny medial branch nerves that carry pain signals from these joints to the brain. By injecting a small amount of local anesthetic around these nerves, providers can determine whether the facet joints are the true source of a patient’s pain. If significant pain relief occurs after the procedure, it helps confirm the diagnosis and may indicate that the patient could benefit from longer-lasting treatments, such as radiofrequency ablation.
Facet joint injections, on the other hand, involve placing medication directly into the facet joint itself. These injections typically contain a local anesthetic and an anti-inflammatory medication to help reduce irritation and inflammation within the joint. Unlike medial branch blocks, which are primarily used to diagnose the source of pain, facet joint injections are generally intended to provide therapeutic relief by calming inflammation inside the affected joint. While both procedures are performed using imaging guidance for precision, they differ in their target, purpose, and how they help manage facet-related spine pain.
