 There is mild anterolisthesis of L4 on L5 and mild retrolisthesis of L5 on S1. There are defects at the superior endplates of the T12 and L1 vertebral bodies, again noted. There is multilevel loss of disc height and disc dessication. There is mild heterogeneity of the marrow signal. The spinal cord displays normal signal and morphology. The distal spinal cord and conus are within normal limits with the conus terminating at the L1 level. There is some mild clumping of the nerve roots at the lower lumbar spinal canal.T12-L1: Bilateral facet arthropathy. No significant disc bulge, spinal canal or foraminal stenosis. L1-L2: Disc bulge, bilateral facet arthropathy and thickening of the ligamentum flavum, contributing to mild bilateral foraminal stenosis and moderate spinal canal stenosis. L2-L3: Disc bulge, bilateral facet arthropathy and thickening of the ligamentum flavum, contributing to mild bilateral foraminal stenosis and moderate spinal canal stenosis. L3-L4: Disc bulge, bilateral facet arthropathy, and thickening of the ligamentum flavum, contributing to mild bilateral foraminal stenosis and progressed moderate spinal canal stenosis. L4-L5: Evidence of left laminotomy. Pseudo disc bulge and superimposed small central disc protrusion, bilateral facet arthropathy, and thickening of the ligamentum flavum, contributing to effacement of the bilateral lateral recesses, mild bilateral foraminal stenosis and improved moderate spinal canal stenosis. L5-S1: Disc bulge with central to left paracentral to left foraminal disc protrusion, bilateral facet arthropathy, and thickening of the ligamentum flavum, contributing to left greater than right lateral recess narrowing and mild bilateral foraminal stenosis with impingement of the descending left S1 nerve root. No significant spinal canal stenosis.
1.Degenerative spondylosis of the lumbar spine with interval progression of moderate spinal canal stenosis at L3-L4, improved moderate spinal canal stenosis at L4-L5 and unchanged moderate spinal canal stenosis at L2-L3. 2.Left laminotomy changes at L4-L5. 3.Left paracentral/foraminal disc protrusion at L5-S1 with impingement of the left S1 nerve.There is suspicion for some nerve root clumping in the lower lumbar spinal canal. Please correlate with clinical symptoms to assess for possible arachnoiditis. 