Nannytopsy that is horrendous and as said, it is major surgery.
I would play their game and when they try to get you out of bed for the first time, feel "faint" even if you are fine. That would at least give you one night in hospital.
Have you got any help when you do go home? You can't carry even a mug of coffee if using a frame or crutches.
My appointment is in 2 days time. Being partially sighted, 82 with mobility problems was insufficient to get hospital transport, I had to answer 50 million questions why I couldn't go by public transport. which would be buses, a tube and shanks pony.
This was after the service my GP surgery uses rang to sau they had unsufficient drivers. I am not surprised so many appointments are wasted if tat is the general treatment. I can stand up for myself and I know the system or did, which helps.