I am a 51 year old female. I have had a t11 and 12 spinal fusion in the year 2000. recently I have been having a tearing sensation in my left rib area where they took the rib bone out and fused my spine. The pain radiates around the lower left side of my waist. There is times when I do have rebound pain...especially if I have put pressure on it for a length of time as sitting at the dinner table in a wooden chair. Activity seems to bother it also. There is times it swells. I have screws and plates and cages in my back..could something came loose?