I had my 6 months CT scan & check up with the NS late last week. The history is I had an L4L5 PLIF on Sept 10, things going ok but slowly until week 11, the sudden increase in pain, and no improvement in walking etc. had scan in early December showed possible epidural fibrosis at L5 nerve exit. Now the NS says though he thinks that the problem is more likely to be inflammation of the L5 S1 facet joint, although it was unusual to start so suddenly. He also said the metalwork is still looking in great placement, and bone is growing, a little slower than would be expected for most non-smokers, but ok. He has said that I need to a start low dose anti-inflammatory, then Lyrica to dull neural response, and if that doesn't work, guided facet joint injections before I see him again in end may. So my question is has anyone else had facet joint problems like this immediately after fusion? How did it end up?