What is a Facet Joint Injection?
A Facet Joint Injection (also known as a zygapophysial joint block) is performed to determine whether a facet joint is a source of pain. Facet joints are located on the back of the spine, where one vertebra slightly overlaps another. These joints guide and restrict the spines movement.
A facet joint injection is a precise diagnostic tool that also provides excellent therapeutic results. Using fluoroscopic (x-ray) guidance, physicians are able to see and accurately target the affected joint(s).
Facet joint injections combine a local anesthetic and a corticosteroid anti-inflammatory medication. This mixture relieves both pain and inflammation coming from the involved joint. Since they are performed using local anesthetic, facet joint injections offer the advantage of providing immediate feedback in confirming the source of your pain.