question: I have multilevel degenerative changes resulting in varying degrees of neuroforaminal and central canal narrowing most pronounced at l4-l5 and l5-s1. left paracentral disc extrusion at the l5-s1 level appears to obliterate the left lateral recess with disc material abutting the decending left s1 nerve root. also at the l5-s1 level there is a broad based diffuse disc buldge and bilateral facet and ligamentum flavum hypertrophy with superimposed left paracentral disc extrusion. I have had pain for the last year and a half,treated with medication only can this condition cause any perminate damage?