@hopefulheart I realize this discussion is months old but it hits on one of my personal peeves so I'm going to thrown in my two cents anyway.
So DXA every two years is often stated as if that is the golden rule. It is in fact idiotic in many situations and I believe a third grader could easily handle the math and logic. You take Evenity for one year. If you do not have a DXA close to the start date and close to the end date then you do not know what you accomplished with that year of your life and and a years exposure to a powerful drug.
If you finish Evenity and do not get a DXA and start Reclast or Prolia or anything else and then a year or two later you get a DXA you will not know what each of those drugs accomplished or failed to accomplish in improving your bone density. At that point you do not have the valuable information that you could have had with before and after DXAs for each of these drugs. Knowing your gains, losses or breaking even on each of the drugs you used enables you to make future decisions based on how these drugs work for you. What if most of your gains came from the follow up Prolia and not Evenity. Would you take Evenity again? What if you gained 25% in your LS with Evenity but after a year of Reclast only 12% was left? Would you continue to rely on Reclast to save the day? Those are extreme examples perhaps but not everyone has the same reaction and benefits from these drugs so you need to know what your reaction - your personal benefits to any of these drugs are.
As I said - just plain idiotic.