L1-L2 disc herniation: Definition, Uses, and Clinical Overview
L1-L2 disc herniation is a condition where the spinal disc between the first and second lumbar vertebrae bulges or ruptures. It can irritate or compress nearby nerve tissue and cause pain, numbness, or weakness. It occurs in the upper lumbar spine, closer to the lower ribs than to the pelvis. The term is used in clinic notes, imaging reports, and surgical planning to specify the exact spinal level involved.