Hi Ian, I hope this goes well for you. I am in a very similar boat. Ankle became increasingly sore to the point where walking was a struggle. As per your experience, scans and consultant opinion was "its f***ed". Options were fusion or replacement. As I had a good range of movement, fusion was felt to be bad option. As for replacement I was advised to hold on for a few years as they are new technology and still in upward trajectory of improvement. So ball was in my court and I opted to avoid high impact activity like running and tennis. So I now cycle and walk instead. It's OK but I still really miss running. I am practicing the art of acceptance and being grateful for what I can still do. I've told consultant I want to cycle, walk and ski with a new ankle. It's now a waiting game...but at least it gives me a chance to save up for the op!