What does "Lumbarization" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"Lumbarization" is a term used to describe a situation where the first bone in the sacrum, a part of the spine located in the lower back, is more like a lumbar vertebra, the bones above the sacrum. This can make it seem like there is an extra bone in the lower back. It's a variation in the structure of the spine that some people have from birth.
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