Diane54, the Spine Group that did my two cervical fusions was the Indiana Spine Group. The first in North America to perform a cervical ADR. I had mine done in 2004 and 2006. But I was not a candidate at the time for an ADR. It really depends on precisely what you have going on. You need to have the surgeon to be upfront with you. Mine own NS was. He told me even with continued ROM and an ADR there could be problems with nerve pain or rather nerve roots. So, just make sure they explain everything to you. Having said that much, they have made great strides with this. Good luck!