Can I get any kind of help after surgery?

I am a single parent with little to no support with raising my child. I'm currently going through the process of getting my osgood schlatters disease fixed (fingers crossed) but this may require me to have invasive surgery on both knees. Which will make looking after my 3 year old a little, impossible. I'm aware that the hospital may offer me support afterwards for myself. But I'm wanting to know if there's any help out there that covers the care of my child that I won't be able to provide. This is my main concern. Or would I have to rely on family? (which I have very little left of and no one is able to take the time out of their lives to provide the help).