I just learned today that my surgeon put in a "cage" for my second level lower lumbar fusion I had 8 weeks ago. I also had a bone graft with bone stimulator put in. Gould this be the reason I have so much pain even when I try to be up for more than 30 minutes? I feel like my back is broke in half. lol. I am 60 years young and realize it may take a little longer for me to heal, but just wanted to know about the pain and the cage.