Medial Branch Block


A procedure in which an anesthetic is injected near small medial nerves connected to a specific facet joint. Typically several levels of the spine are injected in one procedure.

  • The medial branch nerve block is designed to interrupt the pain signal being carried by the medial branch nerves supplying a specific facet joint. Because of this, patients may feel complete or partial pain relief during the first 4 to 6 hours after an injection. They may also feel no pain relief during this time.
  • Recovery time: On the day after the procedure patients may return to their regular activities. The goal of a medial branch block is diagnostic not therapeutic so patients should expect their original pain to return after the anesthetic phase.

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