In February 2009 I had an xlif, my l2 and l3 were going to be fused together. I have a bar and 2 screws and in 3 months where the disc was should have fused together, however, this did not happen. My doctor said that the screws are loose and that although it was trying to fuse together it has not been able to. I am going for surgery in May so that he can lock it up with screws and possibly a piece that goes where the disc was and with any luck this should allow it to fuse together. I am in excruciating pain and I will do anything to make it stop. Has anyone else had a fusion that did not fuse and what was done about it and how are you now?