It doesn't look as if it's affecting her life too much, so at her age, the muscles are pretty much set, so very little can be done anymore as far as totally eliminating the curvature of her neck. I think if she were mine I'd still continue to administer vitamins specifically E and thiamine every few days to support good neurological health, and leg growth. I would also spend a little time moving her neck back into position to see if that is of any help.