I’ve been having pain in my TKR every time I stand up. My original surgeon said he think my hardware is loose but doesn’t know why and I might need a revision. Today the second opinion surgeon (who did a lot more tests and x-rays) has the opinion that it’s not that my hardware is loose, but that my ligaments are too loose and not providing stability to hold the prothesis in place. Which has created a swollen bursa on the inside portion of my knee. Short term diagnostic solution: steroid injection and ordered a knee sleeve brace to see if it relieves my pain by holding the prothesis in place. If this works, he suggests surgery to replace the plastic spacer with a thicker one. A simpler surgery than a revision because no bone-cutting. I have a trip planned in two months so this gives me time to see if it helps. I feel much better with this diagnosis! Time will tell!