SlideDisc: The latest & greatest

[Harrison]

Thanks to Slackwater for posting a new document in the Article Library! An excerpt:

….In axial rotation, only the Slide-Disc((R)) with mobile core reproduced the intact behavior. Results partially support our hypothesis and imply that different implant designs do not lead to strong differences in the range of motion and the location of center of rotations.

In contrast, facet forces appeared to be strongly dependent on the implant design. However, due to the great variability in facet forces reported in the literature, together with our results, we could speculate that these forces may be more dependent on the individual spine geometry rather than a specific implant design…

I'm no kinematics expert, but the two seem to contradict one another. Specifically, I wonder if the center of rotation directly impacts facet loading? Isn't that a forgone conclusion? I think that's their point, but it seems odd to see this in a "speculative" document of this type.

Again, no assumptions from me. We've discussed this issue myriad times in the past five years, have we not?