@frister . Great reply. The card I'm talking about is a wallet size card and tells you whether the prosthesis is cemented or uncemented. It also gives you the product name and serial numbers. It was provided to me by my surgeon. On discharge from the hospital. Hope that helps. The second opinion I had last week told me that I may have had a neuroma develop when they cut through the nerves and muscles. Getting another CT scan done, yipeeee. A little tired of scans now. @marthaellen try not to be too frightened. If you think of all the replacement surgeries done world wide, there aren't really that many failures. I wish you well.