I'm not sure. I've only read about it, (and experienced my own 'discomforts down there).Are ducks and chickens different about healing vents?
I did watch this video where a vet put in a stitch, but the lady had to manually remove it when the chicken started laying an egg - the vet said it could die otherwise. Wow, that seems like intense pressure:
If you do end up having the stitch done, you can ask for the hormone implant so she stops laying.