In addition to spinal anesthesia, you'll be given a different medication that allows you to sleep throughout the entire procedure. The procedure itself takes about an hour and a half to two hours to perform. You wake up from the anesthesia with a band-aid either on your hip or the knee. It's a large bandaid, but this will stay on for at least two weeks following your joint replacement surgery. You're allowed to shower, you can have water run right over that dressing, just don't submerge it under any water. After the surgery, you'll be taken into the recovery room, which is where you'll wake up. Of course, there'll be a little bit of grogginess following the procedure, which is to be expected, but much less than if you went through a general anesthesia method.