Postoperative pain Five lumbar type vertebral bodies are presumed to be present. Vertebral body heights are within normal limits. Alignment is within normal limits. Bone marrow signal is benign. The conus medullaris is normal in position.Compared to 8/26/2015, interval postsurgical changes of decompressive laminectomy via left-sided approach at L2-L3 is seen. Expected postsurgical changes include small fluid collection in the laminectomy bed. There is persistent effacement of the thecal sac at this level with small central protrusion at the L2-L3 level again noted. There is no significant epidural or paraspinous hematoma.Multilevel degenerative changes are seen, as described below:L1-L2: No significant disc disease. No spinal canal or neural foraminal stenosis. Mild facet arthropathy.L2-L3: Decompressive laminectomy, small disc protrusion, small postoperative fluid collection in the surgical bed, and persistent effacement of the thecal sac as above. There is mild bilateral neural foraminal stenosis. Facet arthropathy.L3-L4: Disc bulge and facet arthropathy. There is mild effacement of the left lateral aspect of the thecal sac. There is mild right and mild-to-moderate left neural foraminal narrowing.L4-L5: Facet arthropathy and ligamentum flavum thickening as well as minimal disc bulge resulting in mild spinal canal stenosis. There is minimal neural foraminal narrowing.L5-S1: No significant disc disease. No spinal canal or neural foraminal stenosis.
Postsurgical changes of decompressive laminectomy at L2-L3. There is a small fluid collection in the laminectomy bed dorsal to the thecal sac which may represent residual seroma or pseudomeningocele. There is effacement of the thecal sac at the L2-L3 level in part related to this small fluid collection. Otherwise no significant epidural or paraspinous hematoma.