Listen to the Body
I too am struggling with Tendentious, Patellar in the left knee, and Femoral in the right knee. I tried to ride through the pain (left knee) and ended up compensating with more strain on the right. Thus the cause of the femoral tendentious.
I have been off the bike for three weeks, stretching like mad, and doing some leg strengthening exercises to balance the muscles. Went for my first ride yesterday on the road bike, raised the saddle by 4mm, went slow, with a high cadence and my knees feel great today.
The advice I was given from my PT, was to listen to the body, if it hurts: STOP!! It has taken me a long time to understand that. I have always been the guy the ignored the pain and just rode through it. Now I am paying for it.