Female, 79 years old, status post lumbar spine surgery with lower back pain and left leg radiculopathy. Postoperative findings are seen compatible with posterior instrumented fusion from L4 to L5 and laminectomy from L3 to L5. The surgical instruments were better assessed on prior CT.Spinal alignment is anatomic. Vertebral body height and morphology are within normal limits. No pathologic marrow replacement or edema is observed.The visualized distal spinal cord, conus and nerve roots of the cauda equina are within normal limits. No epidural abnormalities are suspected.L1-2: No significant spinal canal stenosis or neuroforaminal narrowing. L2-3: Facet hypertrophy and ligamentum flavum thickening. Loss of disc height with disc bulging. Prominence of the dorsal epidural fat. Mild to moderate spinal canal narrowing. Severe right foraminal narrowing with probable nerve root impingement. Moderate left foraminal narrowing. L3-4: Postoperative findings. Loss of disc height. No significant spinal canal stenosis. At most, mild left foraminal narrowing. L4-5: Postoperative findings. Loss of disc height and minimal disc bulging. No spinal canal stenosis. No significant foraminal narrowing. L5-S1: Advanced facet arthropathy, particularly on the left. Disc bulging. No significant spinal canal stenosis. Moderate to severe bilateral foraminal narrowing.
1.Postoperative findings compatible with posterior instrumented fusion from L4 to L5 and laminectomy from L3 to L5.2.At L2-3, there is severe right and moderate left foraminal narrowing with a mild to moderate generalized spinal canal stenosis.3.At L5-S1, there is advanced facet arthropathy, particularly on the left, with moderate to severe bilateral foraminal narrowing.