Hi Katie, I meant to say on sucessive levels. Meaning a 2 level cervical I am comfortable with but 3 or 4 seems a bit much. I hope I don't need that many in my case and would try to avoid it if possible.
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Nov 07: STALIF Fusion L5/S1 ACTIV-L ADR L4/L5
Nov 09: Prodisc-C ADR 2 level C 4/5/6
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