Muddsttoper, your not doing bad. I had my left knee done last November,3. I first had it looked at in 1999. Had torn ACL and no Cartilage. Was too late to fix ACL. Worked on it from 1999 to 2015, for UPS, running all day. The last three years I walked on it stiff legged, like a peg leg. For those that don't know, sticking your leg out straight is Extension, and 0 degrees is perfect. Bending your knee is Flexion, and 130-140 degrees is perfect.I'm getting 5 degrees or less straight out which makes walking easy. I don't limp, and most people can't tell. Since my knee was so bad they said I'd be lucky to get to 90 degrees. I'm a little better than 90, and get around fine. I was on my farm last weekend and I do have to pick my path walking through the woods. Stepping over logs is a little hard, walking around them is easy. I have absolutely no pain. Where the leg bones rub together after your cartilage is gone makes two groves. My surgeon calls them rail road tracks. When the bone would twist and pop out of those tracks it was incredible pain, and then twisting it to get it back in was just as bad. To anyone need this done, DON'T BE A WUSS, get it done now.
Al, you already had one so you know what to do, good luck and keep us up to date, Joe.