8 mo postfusion l4-l5 mri: facet rt arthropathy bilaterally w/ligamentum flavum hypertrophy & scartissue rt lat epidural space causing mild 2mod 2 rt subarticulatezone stenosis w/rest centralcanal w/o narrowing. in pain & shots not helping. 80 female?

In brief, post-operatively, you have developed scarring and lumbosacral arachnoiditis. Further surgery is very unlikely to help, and structurally, would not anticipate any rapid changes for better or worse at this point. Physical therapy, especially in a warm pool will help symptomatically, and goal to do McKenzie Back Exercises on your own would provide some supportive progress.