I am very active (weightlifting, martial arts, spin classes, hiking, paintballing etc) and
have only started to show regular symptoms
in the last six months or so.
As it was explained to me, what's happened to my joint is that the tibia has healed at an angle which is putting pressure on the front of the ankle. To look at, it's sort of pointing straight down whereas the uninjured leg slopes inwards towards the ankle joint.