Left lumbar sciatica and positional paresthesias involving the left calf and foot. Five lumbar type vertebral bodies are presumed to be present. There is transitional morphology of L5 with pseudoarticulation involving the right L5 transverse process with the sacrum. Vertebral body heights are within normal limits. Alignment is within normal limits. Bone marrow signal is benign with fatty marrow signal changes involving the anterior inferior endplates of the T11 and L3 vertebrae. The conus medullaris is normal in position.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: No significant disc disease. No spinal canal or neural foraminal stenosis. Mild facet arthropathy.L3-L4: Disc desiccation and mild disc bulge. There is moderate right-sided facet arthropathy and to a mild degree on the left and appears minimally progressed in the interval. There is no spinal canal stenosis. There is mild to moderate right-sided and minimal left neural foraminal stenosis which has mildly progressed in the interval.L4-L5: Disc desiccation again seen as well as moderate bilateral facet arthropathy. Small right posterior lateral annular fissure. No spinal canal stenosis. There is mild left and minimal right neural foraminal stenosis which is slightly progressed in the interval. L5-S1: No significant disc disease. No spinal canal or neural foraminal stenosis.Paraspinous soft tissues are within normal limits.
Multilevel degenerative changes as described above which have mildly progressed since 4/24/2008. There is no significant spinal canal stenosis at any level. Neural foraminal narrowing is relatively worse at the L3-L4 level where there is mild to moderate right-sided stenosis. There is also mild left L4-L5 neural foraminal stenosis.