Thanks for your response! No one so far has addressed the cause of the pain but hope Dr. #4 can help. Possibly patellar clunk syndrome which is diagnosed by MRI which isn’t easy because of the metal hardware. Arthroscopic surgery can help with this. Not doing anything until I get some answers. Did MFR for 2 months which worked on the IT band but no help. The stats I’ve seen on revision are worse than an original surgery and could end up with more scar tissue and nerve damage. Stay tuned.