I am 45 and have degenerative Lordosis in my lumbar region. In 8/08 I had L-4 to L-5, L-5 to S-1 fusion surgery. During that surgery he tried to straighten my back but couldn't because of my nerves that were firing a lot he said, but succefully eleviated the disk pressure on my nerves. I went back for my 6 week x-ray and visit, everything was going well. 2 weeks later started to hear and feel a grinding sound on my right side and pain around my right buttock area and right hip. My pain management doc and my physical therapist said that is was probably just my back because it hadn't fused yet. 3 weeks ago went in for my next surgeon visit and x-ray and it showed I have a broken screw on my right S-1 area. I am now going in for surgery again to replace the broken screw on the right and he is going to put 2 more screws below it to stabilize my back. I don't smoke, haven't fallen or done anything strenuous, nothing to make the screw break. I am in pain and need the surgery soon, but don't want the screws to break again. My regular doctor said he never heard of anyone having more screws put in below the S-1. Also everyone I have talked to said they haven't heard of titanium screws breaking. Any thoughts?