Exercise that doesn't involve much knee movement...?

Begin with 2 exercises that don't bend the knee much. The first is called Straight Leg Raising. Lie on your back (you can rest on your elbows if you like) and raise the affected leg up off the ground, keeping the leg straight at all times. Focus on flexing the quad muscles. Repeat this movement 10-15 times. Rest and then repeat again. Once this becomes too easy, you can add ankle weights if you have them, but that's not mandatory. The second exercise is called Quad Setting. Sit with your legs straight out in front of you. Take a pillow or roll up a towel or two and place it under your knee. This should put a bend in your knee - maybe 20 degrees. Now push down with your leg, trying to straighten out your knee. You must have a thick enough pillow or towel under your knee to prevent it from straightening out. You also have to try to concentrate on contracting the quad muscle, not the muscles in the back of your thigh. Repeat this movement 10-15 times. Rest and then repeat again

Once you've been able to do these exercises daily for about 2 weeks, and if you feel like you're improving, you can add some new ones. Begin with some isometric exercises. These involve flexing the quads but not moving through a range of motion. Sit on a chair or bench, facing a wall. Your legs should be at 90 degrees with your toes up against the wall (wear shoes!). Now, push into the wall with your legs, flexing your quads but not moving through a range of motion. Hold 10 seconds and relax. Repeat 10-15 times. You can do the same with your legs extended straight out in front of you, if you can find someone to push down on your feet. Flex your quads and keep your legs straight.

As you improve, the addition of exercises that increase range of motion, such as leg extensions, can be added.

Im not sure if you can do this at your home, but..

You can go SWIMMING. That is a great workout that won't have high impact on your knees..

Hope that works out for you=]

Lay on your returned. Bend one knee (do no longer difficulty you do no longer flow this one), develop the different leg up and down. Then change. it incredibly is a one leg leg develop. Then go on your area and flow up leg up and down (inner muscle tissues). Then change. Then go on your returned and push up one leg (this is going to flow fairly). upward thrust up, carry onto something and take one leg and swing it previous the different leg. that's the hamstrings, inner and outer thighs. For the calf's, positioned your hands on the wall and push up with your legs. If that's effortless, do it on one leg at at time. on your ankles, you swirl your foot in a around action, the two methods. i do no longer know the thank you to workout the quads with out bending the knee.

I was going to say swimming, but unless you have a pool at home, that might be tough.

How about Yoga? Pilates? Tai Chi?

Seek ye a pool.