Dry! The degree of lumbar spondylolisthesis is clearly illustrated

Lumbar spondylolisthesis is a disease
that occurs due to abnormal bony connections between adjacent vertebrae due to congenital dysplasia, trauma, strain and other reasons, and is manifested as lumbosacral pain, sciatic nerve involvement, intermittent claudication and other symptoms.

Lumbar spine: vertebral sports school large; The spinous plate extends horizontally to the rear, the adjacent spinous interstitial space is wide, which can be used for lumbar puncture, the articular surface of the articular process is sagittal, and the human body has five lumbar vertebrae, each lumbar vertebrae is composed
of the front vertebral body and the posterior appendages.

The inner edge of the lamina is arched, the vertebral arch and the posterior edge of the vertebral body are enclosed into a foramen, the upper and lower vertebral foramen are connected to form a spinal canal, and the spinal cord and nerves pass through it, and the joint part between the two vertebral bodies is the intervertebral disc, which is composed of two parts:
the fibrous ring and the nucleus pulposus.

The nucleus pulposus is located in the center of the disc and is a moisture-rich, jelly-like elastin
.

Degree of spondylolisthesis grading - Meyering grading:

The upper edge of the inferior vertebral body is divided into 4 equal parts, and the degree to which the superior vertebral body slips forward to the inferior vertebral body is divided into 4 degrees
.

I.

II.

III.

IV degree: the degree of forward slippage of the vertebral body exceeds 3/4
of the sagittal diameter in the vertebral body.