Worsening weakness to foot, has stenosis progressed? Please note there is transitional anatomy and for the purposes of numbering, the sixth lumbarized vertebral body segment is labeled S1 to be consistent with prior MRI report. There is grade 2 anterolisthesis of L5 on S1 similar to prior and can be correlated with upright radiographs. There is also trace retrolisthesis of L1 on L2. Alignment is otherwise preserved. Vertebral body heights are normal. Bone marrow signal is benign with edematous endplate changes again seen at the L5-S1 level. The conus medullaris is normal in position.Multilevel degenerative changes are seen, as described below:L1-L2: There is a right paracentral disc protrusion which is slightly progressed in the interval but is not associated with spinal canal or neural foraminal stenosis. L2-L3: Small left foraminal protrusion and left-sided facet arthropathy. No significant spinal canal or neural foraminal stenosis.L3-L4: Minimal disc bulge and mild facet arthropathy. No significant spinal canal or neural foraminal stenosis.L4-L5: Minimal disc bulge and left greater than right facet arthropathy without significant spinal canal or neural foraminal stenosis.L5-S1: Grade 2 anterolisthesis as mentioned above with near complete loss of disc height. There is disc uncovering with mild cephalad extension, advanced bilateral facet arthropathy, and ligamentum flavum thickening. There is resulting severe spinal canal stenosis which appears similar to prior. There is also severe bilateral neural foraminal stenosis which is also similar to prior.S1-S2: No significant spinal canal or neural foraminal stenosis. There is bilateral facet arthropathy.Resection involving the lower sacrum is better seen on prior study. No abnormal enhancement or mass in the visualized lumbar spine or upper sacrum to suggest tumor.
1. Please note transitional lumbosacral junction anatomy. To be consistent with prior report, the most inferior well-defined disc space is labeled S1-S2. 2. Again seen is grade 2 anterolisthesis of L5 on S1 similar to prior with severe spinal canal stenosis and severe bilateral neural foraminal stenoses, not significantly changed since prior.3. Milder degenerative changes at additional levels as described above.