Anterolisthesis
I
think, the vascular calcifications (noted in the findings) are related to degenerative disc disease (or DDD/DJD - arthritis).
Hemilaminectomy: part of the Lamina and only a portion of the of the Facet Joint is removed to allow more room for the Lumbar Nerve.
__________________
".... This world wasn't built for people in wheelchairs ...."
.