What does "L4 posterior elements" 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.
"L4 posterior elements" refers to the parts at the back of the fourth lumbar vertebra, a bone in the lower part of the spine. The spine is made up of many bones stacked on top of each other, and the fourth lumbar vertebra is one of these bones. The "posterior elements" include parts of the bone that help connect it to other bones, protect the spinal cord, and support the body's weight and movement.
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