John, what a bummer that your history takes you (I think) to where you were before the surgeries, plus the added damage of putting the Dynesys in and taking it out, plus more degeneration. The original surgery was done to correct a problem. What does the Dynesys surgeon say is the next step?
I understand the feeling that motion preservation technology will improve, but also wonder what is less risky... especially if one is talking about multi-level fusion as the alternative. (I don't know if this is what is being considered in your case.)
Note that some painful facets are resolved with ADR because of restoring disc height, realigining facets, restoring closer to normal kinematics, etc... Obviously, some will still experience worsening facet problems and I'm not sure the doctors know who will be who and each case is truly unique.
I'm babysitting a toddler now... gotta run... more later.
Mark
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