What is a facet joint block?
A facet joint block involves the injection of a substance into or next to the facet joint. Typically, in a diagnostic block, local anesthetic is used. In most cases a corticosteroid is also injected. Radiographic control is mandatory in accurately and safely placing the needle. The purpose of facet joint blocks is twofold. Initially, it is a diagnostic block. If the patient receives 50% or greater pain relief for at least 2 hours, there is an increased likelihood that the facet joint is important in the patients pain syndrome. The block is then repeated to confirm the diagnosis. The second purpose of the facet block is to reduce pain. Corticosteroids can help reduce the pain secondary to inflammatory substances that sensitize nerve endings. Potential risks and complications As with all invasive medical procedures, there are potential risks and complications associated with facet joint injections. However, in general the risk is low, and complications are rare. Potential risks and or co
