@Stiff knee NC Hi - I haven't been around here much lately. PT has given up on me - completely justified. Working at home but just like every day is starting over. I can stretch & gain a bit but 15-30 minutes later it's gone .... and that's the way it has been since the TKR now a year ago. But I sure don't have the flexion you have & my walking distance is very limited.
I'm trying a JAS Dynamic Splint now but so far, getting the same results - my 'bad' scar tissue/adhesions won't stretch & stay but acts like a rubber band. Ideally, this device should have been recommended last summer.
I'm still seeing P. Carnes at Ral Neuro Pain Clinic but that's for the CRPS in my feet rather than my knee. I like their set-up there. Have to get my feet back before pursuing a fix for my knee.
I've found my 'last resort' but not ready for that yet .... search for Dr. Henry Finn at Weiss Hospital in Chicago (under 2 hr. nonstop flight) - arthrofibrosis specialist, for one. His revision may be too drastic for your situation - radiation just before surgery, tkr revision using his own knee hardware ('the Finn hinged knee'), removes a couple of ligaments that the bad stuff likes to latch on to, rehab for 3-4 weeks in Chicago.
Had figured I'd check at Duke next after I give this JAS gizmo a good try but from what you were told, that does not sound promising for me, either. What we both need, it seems, is to find a doc that does the lysis of adhesions in the knee but with low dose radiation first - radiation supposedly greatly reduces the chances of the bad stuff just growing back again. I'd try that once before a Finn revision.
My surgeon basically gave up at the end of 2020 - saying nothing he can do, didn't think I'd find anyone that would go into this knee - too great a chance of worsening my situation. It's sounding like he is correct .... except for the radiation intrigue.
So basically my day-to-day start is about 73 degrees - decreasing to 60 & super stiff/swollen after a short walk or enough walking around the house & yard. Big Sigh. I still sleep with the ice machine. Fun times.