Ankle arthritis is much less common than in the hip and knee.
Sometimes in the early stages, keyhole surgery to remove spurs may improve pain.
But once the ankle arthritis has advanced beyond this stage, the two broad options are ankle replacement or ankle fusion.
Ankle replacement is better for people less than about 90kg, and preferably retired. It is a small joint, not as robust as the larger hip and knee replacements.
Ankle fusion is a better choice for heavier/younger people who are still working. Although the ankle is stiff afterwards, the adjacent joints still move, and people look like they are walking almost normally, without a limp, about 6 months after surgery.