Lots of negative - where's the positive

[LDonovvan]

Hi Laura:
The facet joints, from what I see, are on the very edge of where the implant would be, therefore if the keel is narrow, as in the Maverick, then the force of it into the bone during insertion would be less pressure on the facet joints and less incidence of fracturing them during insertion, or other future problems. The Pro Disc L has a wider keel, and and so it could fracture the facet joints during insertion and/or cause other problems related to the facet joints because the ends of it are so close to it, from what I read.
Lori

[annapurna]

I understand your reasoning now but experience has shown that much of the post-ADR facet problems people complain about are due to the increased loading placed on a compromised joint surface after the ADR is in place, not from the loads used to place the ADR. You probably have a point, but I suspect that it is a minor effect compared with joint loading after the ADR is in place.