Greta injured herself yesterday upon return from our walk. I released her from her lead, not realizing a squirrel was in the vicinity, she took off after it....anyway when I called her back she came back hobbling. She does not want to put weight on her left leg. Vet was closed so she goes Monday.
That said, I have looked through the threads and posts, finding nothing referencing crating a dog after having them for 4 to 5 years.

I wish we would have believed in crating when we got them, didn't think it would be a good idea because they hadn't been crated with their previous owner, and Greta went balistic when the rescue tried to crate her.

probably a bad decision on our part to not attempt this. We have had three years in a row of knee surgery for one or the other of our girls and keeping them down, confined during convalescence was difficult.
I can't stand the thought of not getting anything done because of "having to sit on her during a long convalescence.
So, is it possible to crate train now when accustomed to free roam of the house for 4 yrs?
Any thoughts and suggestions would be most appreciated. I have no experience with crates.