Hi,
I had surgery for severe spinal stenosis and also had some disks snipped away. I did very well for about 5 to 6 months, then I had a severe sciatica episode (nurab left foot, severe pain down the whole sciatic nerve from rear end, down leg, and in my ankle. I did have some bulges and herniations again, but my doc thought it was mostly due to scar tissue. I actually had something stuck in my left lateral recesss and I had to get a nerve block done. After the nerve block, I did have pain relief. Though gettting the block was horrible. At first I had to feel it and they hit some spot and I thought I would go through the roof. But that only lasted a few weeks; that particular pain did not come back right away, but I got a slew of other pain & symptoms, even in new areas, that I never had before - after the steroiRAB in the injection wore off.
I assume your post MRI included an MRI with and without contrast? IF you get it with contrast, it can show scar tissue much better....
Unfortunately, having surgeries never guaranteees that one will always be 100% again. It seems like many people end up with problems afterwarRAB.