Female, 60 years old, with chronic lumbago. Evaluate for progression of lumbar degenerative disease. Spinal alignment is anatomic. Vertebral body height and morphology are within normal limits. No evidence of marrow replacement or edema is seen. The visualized distal spinal cord, conus and cauda equina are unremarkable.L1-2: Unremarkable. L2-3: Mild facet arthropathy. No significant spinal canal or foraminal stenosis. No interval changes. L3-4: Facet arthropathy has progressed. Minimal disc with mild spinal canal narrowing, slightly progressed. No significant foraminal compromise. L4-5: Facet arthropathy has progressed. Disc degeneration is also progressed with loss of disc height and disc bulging. Moderate spinal canal narrowing, progressed. Mild foraminal narrowing, progressed. L5-S1: Facet arthropathy has progressed. No significant spinal canal or foraminal stenosis.
Progression of disc degeneration is seen most notably at L4-5. In combination with posterior element degeneration, this produces a moderate narrowing of the spinal canal. Mild progression is seen at additional levels but without high-grade spinal canal or foraminal stenosis.