L4-L5 level

What does "L4-L5 level" 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.

Explanation

"L4-L5 level" refers to the area between the fourth and fifth lumbar vertebrae in the lower back. The lumbar vertebrae are the largest segments of the movable part of the spinal column and are located in the lower back. When a document mentions the "L4-L5 level", it's talking about the space and structures between these two specific backbones.

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