Donald Corenman, MD, DC
Post count: 8505

“L5-S1…moderate lateral recess stenosis and neural forminal narrowing on the left with impingement on the l5 and s1 nerve roots on the left…L4-l5 4 to 5 mm left paracentral disc protrusion with moderate neural foraminal narrowing bilaterally with indentation on l4 nerve root greater on the left than right”.

It appears that you have a herniated disc, lateral recess stenosis and foraminal stenosis on the left at L4-5 and L5-S1. This problem becomes more symptomatic when you stand as the nerve hole narrows when you stand. See these hyperlinks to understand:

You more likely need a surgical workup which consists of diagnostic blocks and possibly surgery.

Dr. Corenman