His bones reveal he had multiple breaks in both forearms, a fractured ankle so severe his shin bones fused together and arthritis in his jaw.

Thankfully, these quickly became a thing of the past and were replaced before the Second World War by lighter Crystallite balls made from the crushed shin bones of cows.

Fusion surgery involves cementing the shin bone (tibia) - the thicker of the two bones in the lower leg - to the talus bone in the ankle.