Please don't think that because you read of the issues here that EVERYONE has problems with their joint replacements. Remember that most people find us whiles searching for answers to their problem, and that is why you see the suffering folks here.
I know that, in my winter community of mostly seniors, there are at least 100 people with one or more replacement joints. Yet I have only known 3 who had major recovery issues, and only one who had an infection after surgery. We are also part of a large community of dancers, and many of us have had hips and/or knees replaced so we can "keep on dancing" - in that group, I am the only one who had a major complication - that was 12 years ago, it got fixed, and I'm still dancing!
We have a fellow here, @heyjoe415, who seems to have the right approach - preparation beforehand, and therapy afterwards. Maybe he will share some words of encouragement.
Sue

It sounds like you might be a candidate for total knee replacement Kancha. The next step is to see a surgeon and get X-rays taken. TKRs are usually done when the cartilage in the knee is severely compromised, or missing altogether.

If you do decide to get a TKR, take time, several months, and work with a trainer to get your legs in shape for the surgery. The rehab will go much better. And immediately after surgery do all the exercises, with a PT and at home, that are given to you. You can't wait after surgery.

Most bad outcomes I read about here are from people who didn't do these things. But as sue noted, mostly dissatisfied people post here. I'm convinced the vast majority of TKRs, done with the proper PT, are successful.

One thing to note - because my underlying bone was healthy, the surgeon did not cement the new knee in place. Bone will actually grow into small pores in the metal.

Because you have osteoporosis, the underlying bone may not be as healthy. In this case, they may use cement. Not a bid deal, either way.

Best wishes for you!

Joe