 There is mild anterolisthesis of L4 on L5, measuring approximately 5mm, which is unchanged. The vertebral body heights are preserved. There is loss of disc height and disc desiccation at L3-L4 and L4-L5. The vertebral bone marrow signal is unremarkable. The spinal cord displays normal signal and morphology. The tip of the conus medullaris terminates at the level of L1-L2. The paravertebral soft tissues are unremarkable.T11-T12: Bilateral facet arthropathy and thickening of the ligamentum flavum. No significant disc bulge, spinal canal or foraminal stenosis. T12-L1: Bilateral facet arthropathy and thickening of the ligamentum flavum. No significant disc bulge, spinal canal or foraminal stenosis. L1-L2: Mild disc bulge, bilateral facet arthropathy and thickening of the ligamentum flavum, contributing to mild left foraminal stenosis. No significant spinal canal or right foraminal stenosis. L2-L3: Disc bulge, bilateral facet arthropathy and thickening of the ligamentum flavum, contributing to mild spinal canal stenosis and mild right and moderate left foraminal stenosis. L3-L4: Disc bulge eccentric to the left, bilateral facet arthropathy and thickening of the ligamentum flavum, contributing to moderate spinal canal stenosis and mild right and moderate left foraminal stenosis. L4-L5: Disc bulge with slightly progressed superimposed disc protrusion, bilateral facet arthropathy and thickening of the ligamentum flavum, contributing to severe spinal canal stenosis and moderate to severe right and moderate left foraminal stenosis.L5-S1: Disc bulge, bilateral facet arthropathy and thickening of the ligamentum flavum. No significant spinal canal or foraminal stenosis.
Degenerative spondylosis of the lumbar spine, most pronounced at L4-L5 with disc bulge and slightly progressed superimposed disc protrusion, contributing to severe spinal canal stenosis and moderate to severe right and moderate left foraminal stenosis. The degree of spinal canal and foraminal stenosis at the other levels of the lumbar spine appear unchanged.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.