Today it's still a little sensitive, but better. I didn't walk as much during the day and I didn't have any problems when doing the exercises this evening. I went harder with the exercises targeting the hip abductors and skipped some of those that involve loading the knee, just in case.
I haven't mentioned it before, but in the last couple of weeks I've really made it a point not to sleep on my left side, to avoid putting pressure on the operated area. It doesn't feel bad when I first lie on the left, but I've come to the conclusion that most of the time when the knee was swollen in the morning, it was because I'd spent most of the night on the left side. I think I've now come to the point where I avoid that side even in my sleep, and the knee is no longer swollen when I wake up.
Speaking of the swelling, I think the hematoma is really and truly gone and the red bump has disappeared. Left remaining is a general light swelling in the area that's most noticeable after I've spent done time on my feet, and that mostly disappears with rest and icing. But now that the swelling is mostly non-existent, a hard bump has become noticeable under the skin in the same area. I can't tell if it's some sort of deeper swelling, scar tissue, or something else; I'll see the doctor next week for a scheduled follow-up, so I'll ask him about it.