As someone who's run into this problem, I'm very earnestly happy for you!
Getting an expensive pro-fit helped me cancel my appointment with the knee surgeon.
I then replicated a triple-chainring with identical dimensions for the Mount Laguna Bicycle Classic, and that bought me a month off the bike. Triple chainring = wider pedals = sideways torque on knees.
Nothing makes you appreciate being pain-free like going through a period like this. Gratulations!