Left leg radiculopathy: pain and numbness. There are apparent postoperative findings related to left hemilaminotomy at L4-5. There is disc space narrowing and 4 mm of L4 on L5 anterolisthesis. There is also a disc bulge and facet hypertrophy at L4-5 with moderate to severe left and mild right neural foraminal stenosis, as well as moderate spinal canal stenosis. There is mild disc bulging at L5-S1 without significant spinal canal or neural foraminal stenosis. The vertebral body heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The spinal cord displays normal signal and morphology. The paravertebral soft tissues are unremarkable.
Degenerative spondylosis at L4-5 with moderate to severe left and mild right neural foraminal stenosis, as well as moderate spinal canal stenosis and mild anterolisthesis of L4 on L5. 