If the vet said there that it couldn't be cured, then I would believe them.
She likely has a leg bone deformity in addition to hatching with the missing toes. Leg bone deformities generally cannot be fixed.
A chicken is meant to be active, scratching about and not crawling around. It's...
Can you please post some photos of the pullet and several of her leg?
How long have you had her?
A video of her walking/moving around, in addition to the photos may also be helpful. Upload video to YouTube and provide a link.
Has she always had Perosis and it was left untreated?
What do you...