Hello: I'm also a part of the failed fusion club. When it was done back in 1989, the surgery was state of the art. However, the surgeon didn't take into account that the pressure of the hardware holding up my upper spine would eventually cause my lower spine to torque and curve. A few of my screws have also popped out and they cannot be found on the xrays but we know they're in my back somewhere! I now face the prospect of revision surgery but I'm so much older, with Osteoporosis and IBD Mal-absorption. My current surgeon won't operate yet either. If this helps you at all, I did see a 10% improvement in my Dexascan after a year of Evenity. Other than a little soreness the day of injection, I had no side effects. Best of luck to you - keep us posted♥