In most cases, you will be able to go home on the same day as your surgery. You will need someone to drive you home and assist you during the first days of your recovery.
Your surgeon will most likely put your knee in a brace like the one shown here. You may also need crutches to keep your weight off of your knee.
Some surgeons use cold therapy devices to reduce pain and swelling. You may also need pain medications for a short time after your surgery.