I've had arthrosis in both knees for several years (due to a combination of youthful sports injuries and overweight). A few years ago I saw a knee specialist who predicted I was due for knee replacement sometime soon.

On the advice of a massage therapist I instead started a habit of using a home cycling machine for half an hour each morning. So far, it has worked wonders for me, and I hope I can hold on for a decade more, by which time the injection mentioned in the article might be ready for humans.