My triple arthrodesis was done where my foot is fused
this way on purpose. (Just imagine walking on your toes, and the part of your foot
just under the toes. Nothing more.) So, when I walk, the heel up off the ground wants to go down, but the fusion will not allow it.
I ended up having the triple arthrodesis done when I was approx. 8 years old. The doctor made this decision after such rigidity refused to allow correction to take place, despite different procedures, castings, bracings, etc.