Why Am I Unable To Walk After Being Operated For Polio?

hi doctor, a surgeon in pakistan operated my polio affected flail foot. but it has been six months now and i am having problem in walking. He has strenghed it and it doesnot move even there is not much relexation , my ankle is very fixed like and there is no joint movement in ankle. He put 2 metal pins in my foot, and 1 metal pin on the ankle and leg bone joint. i was able to walk, upstairs and downstairs, using toilet, before operation and now there is not much joint movement. if these pins are removed from my foot and leg, can i have the same flexity and same foot situation again. Thanks