Male, 67 years old, with radicular pain. Assess for worsening disc disease. A grade 1 retrolisthesis of L5 relative to S1 has not significantly changed. Spinal alignment is otherwise anatomic.Vertebral body height and morphology are within normal limits allowing for degenerative endplate irregularity at L5-S1.Marrow signal characteristics are mildly heterogeneous with scattered T1/T2 hypointense foci, but no concerning marrow lesions are seen.The visualized spinal cord, conus and cauda equina are unremarkable. The spinal canal is slender at lower lumbar levels.Severe loss of disc height is again seen at L5-S1 without significant change. Additional level specific findings are as follows:L1-2: Mild facet hypertrophy with very small bilateral posterior synovial cysts, unchanged. No significant spinal canal or neuroforaminal stenosis. L2-3: Facet hypertrophy with a small effusion on the left, unchanged. Minimal bulging disc, unchanged. No significant spinal canal or foraminal stenosis. L3-4: Facet hypertrophy, unchanged. No significant spinal canal or foraminal stenosis. L4-5: Facet hypertrophy, unchanged. Stable mildly bulging disc with interval resolution of the previously seen left foraminal protrusion. There is only minimal annular fissuring evident at this location on the present study. No significant spinal canal stenosis. Mild right foraminal narrowing, unchanged. Mild left foraminal narrowing, improved from prior. L5-S1: Evidence of right-sided laminectomy with fatty material filling the operative bed. This fatty material encroaches upon the spinal canal more than on the prior study, resulting in a mild effacement of the right thecal sac. Facet hypertrophy, disc bulging with osteophytic ridging, and severe bilateral foraminal narrowing are all unchanged.
1.Interval resolution of the previously seen left foraminal disc protrusion at L4-5 with resultant relief of foraminal stenosis.2.Redemonstration of findings compatible with right-sided laminectomy at L5-S1. Fatty material within the operative bed encroaches upon the right posterior thecal sac to a greater degree than on the prior examination resulting in mild thecal sac effacement.3.Degenerative disc disease and severe bilateral foraminal narrowing at L5-S1 are not significantly changed.4.Mild degenerative findings at other levels without significant interval change.