Superior Vertebral Notch Of The Lumbar Vertebra, Lateral View

Description

Lumbar vertebra anatomy is centered here on the superior vertebral notch (incisura vertebralis superior) along the cranial border of the pedicle in a lateral profile. The notch forms a concavity on the posterior aspect of the vertebral body-pedicle junction, positioned superior to the inferior vertebral notch and posterior to the vertebral body. Adjacent landmarks likely included in frame are the pedicle itself, the lamina extending posteriorly, and the superior and inferior articular processes projecting at the vertebral arch. Bone contours are emphasized. Clinically, the superior vertebral notch matters because it contributes to the intervertebral foramen when paired with the inferior vertebral notch of the vertebra above, creating the bony canal for the exiting lumbar spinal nerve and its dorsal root ganglion. Foraminal stenosis from facet arthrosis, disc height loss, or degenerative spondylolisthesis is often discussed in terms of how the pedicle margins and notches reduce foraminal area, correlating with radicular pain patterns such as L4 or L5 radiculopathy. A strict lateral perspective keeps attention on the pedicle silhouette and the notch depth, which is useful when teaching how the foramen’s superior and inferior boundaries are defined by bone rather than by the disc or ligamentum flavum. Use this illustration in spine anatomy lectures, orthopedic or neurosurgical teaching files, and radiology correlation pages that explain the osseous margins of the neural foramen on oblique lumbar radiographs and CT bone windows. It also suits textbook figures on vertebral arch morphology and foramen-forming landmarks for transforaminal approaches or foraminal decompression discussions. Anatomical accuracy verified by SciePro's Medical Advisory Board.