# Fill the space between two uneven surfaces

I have a couple of vertebrae and I need to insert a disk between them. stl files are shared here. I am looking for a solution that would be compatible with simulation on another software. The constraints are such that mesh analysis shouldn't highlight elements on intersect and thickness (0 - 0.0001) options which happen if I try to cut out a disk using the Boolean modifier because elements at the edges become very small. Then I have to manually fix the errors which is very time consuming. Controlling thickness issues may be inevitable but I believe there is a solution out there which could eliminate the intersection issues.

Regards