1. The L5 posterior elements are dysplastic, with left spina bifida defect, and ununited posterior spinous process.

2. Mild lumbar levoconvex scoliosis is present.

3. Degenerative discogentic spondylosis is evident at each level, especially L2-L3. Small chronic Schmorl's node endplate defects are seen at each level, and mild Modic type II discogenic endplate changes are present at L5-S1.
4. Each lumbar disc is desiccated and reduced in height, excluding L1-L2.

5. L2-L3: Focal 2.2 mm left posterolateral disc protrusion causes mild left neural foraminal encroachment.

6. L3-L4: Generalized 1.6 mm concentric posterior annual disc bulge deforms the ventral thecal sac. Facet arthrosis and ligamentum flavum hypertrophy contribute to mild bilateral foraminal narrowing.

7. L4-L5: Focal 3.8 mm left paracentral posterior inferior disc extrusion narrows the left lateral recess, impinging upon the decending left L5 nerve root. Disc material extends 2.2 mm caudally. 3.3 mm contralateral right foraminal disc protrusion is evident. Facet arthrowis contributes to bilateral foraminal narrowing, moderate to severe right, moderate left. There is impingement upon the exiting right L4 nerve root.

8. L5-S1: Broad-based 3.8 mm left posterolateral foraminal disc protrusion narrows the left lateral recess. Facet arthrosis contributes to moderate left foraminal narrowing. The disc protrusion impinges upon the left S1 nerve root which is displace posteriorly.

and that's the first part there is more...what does this mean?

PLEASE HELP ME UNDERSTAND