Bilateral Knee Replacement

Hi,

My mother underwent Bilateral Total Knee replacement 4 months ago. She feels very heavy and tight at the knees.The feeling is there all the time. She doesn’t have pain though.

Can someone help understand what might be the issue ? What can we do to make it to go away ?

If you find out, let me know. I had bilateral arthroscopic miniscus repair and have this heavy tight feeling (like there’s something extra in there). Had 7 week follow up with surgeon today and he injected both knees with cortisone - but offered no explanations. My PT says some people just have more difficult recoveries than others…