I had an L5-S1 spinal fusion (posterior) about 11 weeks ago and my pain symptoms are the same as before surgery, but much more intense. At my 3 week post-op exam, I was relatively pain free except for the normal pain associated with all of the hardware. The doctor felt that something went wrong either with the hardware or perhaps scar tissue was adhering to the nerve root. He ordered a CT scan which confirmed that the hardware is fine. He ordered an MRI to see what is happening with the soft tissue. I obtained a copy of the CD because I have had two previous discectomies and I have learned how to read them (at least somewhat). What completely shocked me was that the images showed a partially intact disk at the L5-S1 level on the left side!! I'm still waiting to hear from my doctor about the official MRI results, but I thought that it was standard procedure to remove the entire disk for a fusion. Why would he leave part of the disk intact? I would think that it would interfere with bone growth. Does anyone know more about this? Thanks!!