In medical terms, MBB most commonly stands for Medial Branch Block.
A Medial Branch Block (MBB) is a diagnostic procedure used primarily to determine if pain is originating from the facet joints in the spine. The facet joints are small joints located between each vertebra.
How a Medial Branch Block Works:
- Facet Joints and Pain: The facet joints are innervated by medial branch nerves, which transmit pain signals from the joints to the brain.
- The Block: During an MBB, a local anesthetic is injected near the medial branch nerve supplying a specific facet joint. This "blocks" the nerve, temporarily preventing it from transmitting pain signals.
- Diagnostic Purpose: If the patient experiences significant pain relief after the injection, it suggests that the facet joint is the source of their pain. The degree and duration of pain relief are critical in determining the effectiveness of the block.
- Confirmation: Because a single block can be unreliable, doctors often perform two MBBs on separate occasions. Substantial pain relief after both injections increases the likelihood that the pain is indeed facet-joint related.
Why is MBB Important?
The results of an MBB help doctors determine the appropriate treatment plan for patients with back or neck pain. If the MBB confirms that facet joint pain is the problem, treatment options may include:
- Radiofrequency Ablation (RFA): If the MBB is successful, RFA is a procedure that uses heat to disable the medial branch nerve, providing longer-term pain relief.
- Physical Therapy: To strengthen supporting muscles and improve posture.
- Medications: To manage pain and inflammation.
Important Considerations:
- MBB is primarily a diagnostic tool, not a long-term pain management solution.
- The results of an MBB are used to guide further treatment decisions.
- The effectiveness of an MBB can vary from person to person.
