"Kneecap Training"

[KnottedYet]

Yes, I overpronate.

Oooh, wow, did I have a lucky guess or what?

Perhaps ask your PT if you should be wearing your custom orthotics all the time, or ask if the PT can "post" your Superfeet for everyday wear. (Posting is just putting wedges on the underside of your Superfeet so they correct your mechanics like the custom orthotics do. Shouldn't cost you anything other than the PT's time and *maybe* a few bucks for the wedge material.)

"fore- and hind-foot varus" is just the $64-phrase for the structural pattern of your feet at sub-talar neutral, and "compensated" means that your ankle/foot have collapsed during weightbearing to help the sole of your foot reach the ground. (that compensation is overpronation) If you had uncompensated varus, you'd be over-supinating and you'd've talked about a different set of symptoms in your knees and back.

And, everything Wahine said!

Edit: darn, I just did a quick search trying to find this nifty online video of feet and what they do, and I can't find it. Sorry!

Edit #2: and your PT at some point should assess your posture of your entire body. Especially with the back pain popping up, you might have some underlying posture habits (like locking your knees, or anterior pelvic tilt, or poor transversus abdominus control, or glutes that take a holiday, etc.) that could be playing games with your bod.