[annapurna]

What have you had done for diagnostic work? Discograms? Anything else? That might help you figure out how many you need done to deal with your current condition. If one level is only slightly gone compared to the others you might look at ADCT to treat that level combined with one or two ADRs. For that matter, if your facets aren't up to it, you might find you need a hybrid of fusions and ADRs. The other to remember is that, while it's cheaper to replace everything in a single surgery, it isn't impossible to go back in and fix a level in the future. It's really going to depend on how much of your pain is being caused by each level and how likely each is to need replacement in the foreseeable future.