 There are postoperative findings related to left L5-S1 hemilaminectomy and ligamentum flavectomy. There is vacuum disc phenomenon, loss of disc space height, endplate irregularity, and a mild eccentric left disc herniation with annular fissuring, which in conjunction with soft tissue that may represent scar formation, effaces the left lateral recess. Otherwise, there is minimal bilateral neural foraminal narrowing at this level. There is a mild central disc protrusion and bilateral facet and ligamentum flavum thickening at L4-5 without significant spinal canal or neural foraminal stenosis. There is no significant spinal canal or neural foraminal stenosis at T12 through L4. The vertebral body heights are preserved. There is no spondylolisthesis. The imaged portions of the spinal cord are unremarkable. There are findings related to right hip arthoplasty.
Postoperative findings related to left L5-S1 hemilaminectomy and ligamentum flavectomy with degenerative spondylosis and what may represent scar tissue that efface the left lateral recess. Degenerative spondylosis is also present at L4-5 with minimal bilateral neural foraminal narrowing at this level. No significant spinal canal or neural foraminal stenosis at T12 through L4. I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.