Discs and relationship to facets

[Zoticos]

So Hooch what you're saying is that all visceoelastic ADR's replicate natural disc COR? And there would be no difference between an M6 or FLD regarding COR?

Any chance you've got a link to the paper by Avinash? I'd be interested if it addresses visceoelastic discs....unless it was that one you said had to be paid for....

[Hooch]

Pretty well thats it.

If you want to find the paper just go pubmed or google scholar or the like and search for Partwardhan AG.

But it's essentially academic knowledge.

[Zoticos]

Yeah I'll check that out, unless you could just link it?

I can't see how the COR on the M6 and FLD could end up the same due to visceoelastic adaptations given the different proportions and positioning of the visceoelastic components in each disc. The FLD looks most likely to live up to what you've stated. The polymer proportion of the M6 doesnt get close enough to the perimeter for my eyes. I wonder what got to Mike's facets then?

Medical Endeavors w/ my Herniated and Degenerative Lumbar Disc: Facets are giving up.

[annapurna]

Remember that the center of rotation in a natural disk is shifted back towards the spinal cord not by the disk itself being close to the cord but by shifting the fluid in the disk back and forward to make the overall mechanics produce COR near the cord. There was a long-ago thread where another ADRSupport poster and I argued about where the COR had to be. We didn't quite degenerate into a playground, "Yes, it is," "No, it's not," level of argument but it was close. Reproducing the correct COR was actually the biggest problem going from the ball and plate real old style ADRs and the Charite.

One thing that Laura did see was a two-step problem with her facets. The facets were being irritated due to excessive motion. That irritation led to local muscle spasms which led to further problems and eventually landed her in pretty serious cascade of pain and impairment. The strange thing was that her pain was very serious (for a while, it's since faded) for the degree of facet degeneration/irritation and pretty much anything that broke the cascade immediately resolved the problem for hours to weeks. It was a few years before we really understood what might be happening and started using aggressive prolotherapy to try to strengthen the ligaments in and around the facets.