I Had 3fusion Lumbar Surgery With Rods And Screws One

I had 3fusion lumbar surgery with rods and screws one year ago. in june I had surgery for a pinched nerve in lower back. had a ct scan and mri 6 weeks ago, my dr said above and below the surgery are really bad with arthritis spinal stenosis, im having such horrible pain in my hips and legs getting harder to walk, like the muscles are so tight? I have a 75 mg fentanyl pain patch on have oxycodone and gabapentin.
thank you for your time but I did not know it cost to do this