Hi Rocky,
Another welcome and condolences that you are in this mess.
May I ask though, why the disc is to blame and not the surgeons who did the work? This is a sincere question, not a snide remark. I think more Charite discs have been implanted than any other kind, because of the length of time it has been available. (I certainly could be wrong about this, but the numbers must be high) The device is only as good as the person putting it in.
Quite often patients are reluctant to put the blame on the surgeons as their lives are literally in their hands, and they don't want to tick them off
We don't often have many options for back-ups.
Of course, this may have been the completely wrong disc for you, and that caused all your issues. I wish there were more choices in North America. The limitation really puts us in a bad spot at times, forcing us to take second best, when another appliance that is available in Germany for example, would be much better.
I am facing a similar situation. The M6 would be perfect for me, or at least as good as it gets. But it will not be approved in Canada for at least another two years, too long for me to wait.
I wish you well.