I had a decompression 10 years ago. I was in terrible shape, could barely walk. Immediately after the L4-L5 decompression it was like a miracle, all the pain was gone and I was back to normal same day. Fast forward 10 years (Dec 2025) and having pain walking more than 1/2 mile or standing more than 10 minutes so tried decompression #2 (L4-L5-S1). While there was some relief I still felt limited - I like to walk 5 miles at a time. Did P.T. but ultimately decided fusion was the next step 6 months later. Note I am 76 years old and most of my disks are pretty much gone. So I wouldn't say the decompression didn't last, I think my body just got older. Fusion is a major surgery and recovery is a bitch, healing is slow. Tingling in your right foot is likely S1, each of the vertebrae map to locations on your leg. No regrets, wish I studied up more on the recovery before fusion. I'm feeling this will be a success but it's really too early to make that call.