Same here. Had a XLIF Fusion on L4/L5 and after that my hips are killing me. It's 17 months post opp and it's getting worse. Now I have pain going down my legs and can't sit for long, stand for long. I can't even lay down and sleep because it hurts so much. You'll roll over and the pain will go from your leg to your foot and no matter what position you can't make it stop hurting.
I tell the VA 'doctor' about it and nothing. I've got so much scar tissue on the nerves from all the procedures, failed microdiscectomy, metal fragments left in my back.....
My wife is getting mad at me because I can't do anything and can't get on a normal sleep pattern. I have to stay up until I literally collapse because the pain now is so great I can't lay down and fall asleep.
Best of luck to you.