Spondylolisthesis is the forward slippage of lumbar vertebrae.

Lateral view of a lumbar vertebra.

Superior view of a lumbar vertebra.

Lateral view of vertebral column curvature in an adult, showing cervical (red), thoracic (brown), and lumbar (yellow) vertebrae, and the sacrum and coccyx (orange).

Superior view of lumbar vertebra with vertebral body sectioned transversely.

Lateral view of a typical 2nd lumbar vertebra.

Superior view of the lumbar vertebrae, showing the mamillary, accessory, and transverse processes.

Sagittal MRI of lumbar spine (IV, intervertebral disc; Sp, spinous process; Pe, pedicle; N, spinal nerve; FJ, zygapophyseal joint. )

Anterior view of transitional lumbosacral vertebra, with the 1st sacral vertebra partly free (lumbarized) and the 5th lumbar vertebral partly fused to sacrum (sacralized).

Lateral view of the lumbar vertebrae.

Lateral view of the lumbar vertebrae.

Lateral radiograph of the lumbar vertebrae.

Lumbar vertebra