I am so happy for you and Zsa Zsa. Everyone loves a happy ending.
Three years ago we had a chicken that lost the use of her legs, fell or something. We tended to her like this for at least 3 week, cleaning her bottom and bringing her in at night to sleep in the spare bedroom. The vet didnt tell us to cull her but was very surprised that she, not only survived but kept her place at the top of the pecking order. She's still the top chicken and looking better than ever.
Lets hope Zsa Zsa has a long and happy life, thanks to you!