I had my left ankle fused in December of 2014 if you have any specific questions about fusion. I had end-stage arthritis with severe bone deformity from years of internal bleeding due to my genetic bleeding disorder called hemophilia. I was told a large factor in whether or not a replacement or fusion is best for you is based on how active you are. I was told it is the opposite of what you think, the more active you are the better a fusion is because it creates a stable joint that can take more weight and activity, whereas a replacement is a bit more limiting due to the fact that the components are so small and susceptible to failure. I can say, the recovery from an ankle fusion was long and arduous, but the end result has been a complete elimination of years of severe chronic pain and I find it to not limit almost nothing I do – except for running, which I no longer did anyways. Feel free to ask other questions about fusion, I'd be happy to answer them.