For those with multiple level cervical disease, ProDisc-C provides an option that does not have the drawbacks of the PrestigeST, which cannot be implanted at adjacent levels. The only other cervical ADR's available in the US, outside of clinical trials at this time are the Bryan disc and Prestige ST.
The Bryan disc has many issues with a very complex and error-prone implantation technique and potential HO resulting from extensive milling required.
I think that the earlier than expected approval of ProDisc-C does change things for people looking at cervical ADR.
Mark
PS... sorry, I owe you an email.
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