Help!! My knee today has been going backwards?

You need to build up your quadriceps. They help hold the device in place. I have a similar issue and had fallen prior to major quad rebuilding. Ask your physio for exercises. Or YouTube them.

Not unusual....ligaments, tendons, muscles are all weak and out of condition. You have to continue to need conditioning the entire leg with special emphasis on the quads. One thing to keep in mind at all times, this recovery is not a lineal process, its up and down, backwards and forwards. Run the nerves start their healing and that really drives you nuts. You get through on phase and move on when suddenly the pain starts all over again. It may go away in a couple days then again may last 2 or 3 weeks. I've been through 5 complete rehab after 11 surgeries on my left leg/knee which includes have 3 different prosthesis made by different different manufacturers. Don't be discouraged and don't let the unusual frighten you.

One other thing..3 weeks is too soon to be used as any kind of gauge. 6 weeks should be the bare minimum for any kind of benchmark or guideline.

?Don't worry, that happened to me all the time. Your muscles are weak and take time to build up. Keep up the exercises and it will get better in time. You don't want to fall though, so use stick/crutch, or two.

I used two crutches for any walking over ten minutes even at 12 weeks...My quadriceps were very weak and took a while to activate properly. My personal feeling was I wanted to give the muscles a chance to build up first before putting more pressure on the joint and also I found my gait much better using two. It was also possible to walk faster with two crutches/sticks. Which was rather exciting at that stage!

I could only walk a tiny weeny bit in the house, literally a few minutes, with no stick or crutch at 8 weeks. I used one around the house for what seemed like ages. My physiotherapist urged me to stick with two crutches for as long as I felt I needed them, and I didn't see the point in causing myself needless pain. Instead I focused on improving range of motion and decreasing swelling more than dispensing with support. Then, after starting leg strengthening exercises at around 9 weeks, ie weights on legs, very mini squats, etc. I built up more strength and increased walking duration. At 3 months things really turned a corner. But everyone is different.

Take a look at my profile and skim through my blog if it helps. It was written to convey the need for patience, something our cultures in the western world are not really geared up to!

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Hi Bomber50, don't worry this is normal.  It will improve.  21 days is very early in this.  You'll have times when you're improving and you'll have times you'll be concerned and hurting differently.  Don't worry.  Had my 1st knee done TKR 18 months ago, and 2nd, about 8 weeks ago.  You may also get pain where it feels like jabbing pain, but that's the nerves knitting back up.  Then again, you may not.  You may also go through surges of "wow, this feels better", a lot of us have.  Hang in there you'll get there.

Hi I had this!! and its because your leg is not completley straight. They seem to make you concentrate on the ben but do not check that its completley straight. It is easily resolved. Sit on the bed and push your knee into the mattress hold down and keep on doing it. It will hurt a bit at the beginning.

Hope this helps

I read where someone said do quad exercises. It's actually hamstring exercises. The hamstrings are what helps keep the knee from bending backwards. The quads actually "encourages" that movement.

What was the original injury/procedure that you had done?