Deep breath! TKR is really tough and has a very long rehabilitation period, like up to a year. The incisions in the leg (usually 2) will take 12 weeks to heal. In that time the body will defend itself with swelling and inflammation as it sends extra cells and fluids to try to heal the wounds. It also has to cope with a foreign object, the knee replacement. That's a lot. The main things to do are to keep circulation going, but gently, and keep the swelling under control. Not everyone gets scar tissue that gets out of control, but everyone does get scar tissue. That's normal. Now, if you are all swollen up and stiff from not moving, then you will be in constant pain and unable to bend or straighten your knee completely. But you have 12 weeks to get there so don't panic. Don't push hard on the therapy exercises because you can damage things, but DO the exercises to your limit, not quickly, not hard, but gently and at least four times a day. Keep that leg moving or it will stiffen up. When you aren't exercising, get your surgical leg elevated above the level of your heart. That helps reduce swelling and improve circulation while you're resting, and you do need frequent rest periods to heal. Use ice packs for pain, but no longer than 20 minutes at a time. So that's how you spend the days for 12 weeks: move, elevate, ice, rest, over and over and over and over. Walk as often as you can, but don't overdo it. Use a walker or a cane, anything that keeps you from falling because that would be disastrous. Don't worry. It will get better, but it's SLOW. Do everything frequently in little bits and you should be just fine. Let your coach drive. Let your family feed you. Eat nutritious food. Forget chores. Don't try stairs in the first 12 weeks. That's what elevators are for. Give yourself time to heal. This is a long process and all of us who have been through it are rooting for you to have a successful recovery. We know how hard and long it is. Best wishes to you.