Can knee replacement be done on both knees at once? both my knees cause me a huge amount of pain. can i have knee replacement in both at the same time?

It : It is possible, and some surgeons will do both at once. It increases risk of needing a blood transfusion. I usually recommend one at a time.

Bilateral tka : They can be done at the same time. However, recent studies have shown higher medical and surgical complications in certain patients that undergo bilateral knee replacements. There was a study showing that the risks were higher for patients older than 50. Therefore, it is possible but best reserved for certain patients.