Unfused sternum after bypass surgery resulting in chronic pain two years after surgery...treatment options?

What did surgeon say: This is going to be a problem for you if not addressed, as even simple things like inhaling, sitting, or anything requiring your ribs to expand or contract is destabilized from not having your sternum connected (fused) from the CABG surgery/stenting. Have you spoken to your surgeon? That is a good place to start, so you can discuss options. Hard to replace Mother's Nature's own design. Start there