TKR: How much motion should we expect?

I’m not sure how this happens, but certain diagnoses seem to come to my clinic in clusters. I see a fair amount of primary TKR in my clinic. For the most part, patients undergoing primary arthroplasty seem to do very well in our clinic subjectively and functionally. Fortunately for all of us, I doubt my outcomes far exceed or lag behind many of you treating the same population.