Yikes - never heard about ankles before. Are you sure that’s not a relieve and the cause at the same time?
I've regained all of the extension motion and probably 70% of my retraction motion (moving toes towards knee), but only about 30% of the muscle strength. Unfortunately it still swells up after long periods of standing or hiking but I'm rarely able to crack it anymore, and really wish I could on those bad days.