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A member asked:
What is a bilateral lumbar mbb l4 and l5 procedure?
A doctor has provided 1 answer
Medial branch block: Mbb stands for medial branch block. The medial branch is a small branch of the spinal nerves that supplies sensation to the facet joints, which are the joints in the back of the spine. L4 and L5 refer to the specific spinal nerves in the lower back (lumbar spine). Likely this procedure would be performed for somebody with pain due to facet joint arthritis at l5-s1 on both sides (bilateral).
Answered 3/8/2020
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