Hope all is going well with you, John. I had surgery on both knees (replacements) over the last year. The most critical thing (and most painful) is the PT right after surgery and the continued PT after you get home. That is SO important to do, so as not to limit your range of motion or develop a permanent limp in your step. As you're already finding out right about now, each day will start getting better and easier. We all give continued prayers for your quick recovery.
Deb, it's tuff being a nurse at home and see the pain/frustration. I know John is in good hands with you. When this has passed, John owes you a HUGE summer getaway.
Hope to meet you both out on the road soon. Until then, keep on keeping on.
Rod