I too had the Flexicore implant in 2005, followed all the rules and then they cancel the study and send you a card and want you to be on your way. I also have had a complication since day one they say "I am so small and disc was too big" now permanent nerve damage in right leg and foot. I also have been suffering from severe back pain and I believe something is wrong with the area that the disc is in. I actually had a lawyer contact me today after I sent a brief inquiry. I am hoping this can be a prodcut liablility claim, as I believe is similar to the recent lawsuits with Stryker for the hip implant, metal on metal. I think the material is very similar. I am waiting to here back from a law firm in my area (SF) if anyone else is interested maybe we can get a few of us who suffer everyday to get some medical help we so desperately need.