I also have a medical condition that has caused degenerative arthritis in the lower back. I find that if I'm seated in anything but an Aeron I can't remain seat

I also have a medical condition that has caused degenerative arthritis in the lower back. I find that if I'm seated in anything but an Aeron I can't remain seated for long. I suspect it's less the brand than the mesh with some give. However, since I know the brand, I happily spent the $1300 for my home setup. (I also sprung for an Uplift standing desk)