Facet joints, or zygapophyseal joints, are true synovial joints in the spine that have been identified as potential pain generators. Medial branch blocks involve the injection of a local anesthetic ...

Facetogenic pain, also known as zygapophysial joint pain, is a frequent cause of mechanical spine pain. Diagnostic blocks (for example, medial branch blocks [MBBs]) are the only reliable approach to ...

It is not common for pain to get worse after a medial branch block (MBB). However, this could happen if there are complications during the procedure that result in nerve damage. It is also possible ...