Female, 30 years old, with history of lumbar fusion and stenosis, presenting with back and leg pain. Evidence of anterior instrumented and interbody fusion is seen at L5-S1. At least partial laminectomy is also evident at this level. No marrow replacement or marrow edema is seen. The remaining vertebral bodies are normal in morphology and signal. The distal spinal cord, conus and nerve roots of the cauda equina are within normal limits. No epidural abnormalities are suspected.The intervertebral disc at L5-S1 has been surgically extirpated. The intervertebral discs at the remaining lumbar levels are preserved. Moderate facet arthropathy is seen at L4-5 and L5-S1. No significant spinal canal or foraminal compromise is detected at any level. There is perhaps a grade 1 retrolisthesis of L5 relative to S1. Spinal alignment elsewhere is anatomic.
Findings are seen compatible with anterior and interbody fusion at L5-S1. A partial laminectomy has also been performed bilaterally at this level. No marrow abnormalities are seen. In addition, the spinal canal and neural foramina are patent throughout. The remaining intervertebral discs are preserved. 