Low back pain and radiculopathy. There is approximately 10 mm of anterolisthesis of L5 upon S1 with mild disc space narrowing, desiccation, and adjacent endplate bone marrow signal alterations. There is associated facet arthropathy with mild left and severe right L5-S1 neural foramen stenosis. However, there is no significant spinal canal stenosis. The spinal cord and cauda equina nerve roots are intact. The conus medullaris is situated at the L1 vertebral body level. The paravertebral soft tissues are unremarkable.
Approximately 10 mm of anterolisthesis of L5 upon S1 associated with degenerative spondylosis resulting in mild left and severe right L5-S1 neural foramen stenosis. 