What does "Level of L4-L5" 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.
"Level of L4-L5" refers to a specific area in the lower back. The spine is divided into several sections, and the "L" in L4-L5 stands for "lumbar," which is the term for the lower back. The numbers 4 and 5 indicate the specific vertebrae in the lumbar section of the spine. So, "level of L4-L5" is simply a way to pinpoint a specific location in the lower back.
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