This was a triumph, although these photos are rather lackluster. I walked around my backyard without the aid of a cane, crutches, or walker! My knee is improving fast, although I can’t walk over rough ground very well, and I definitely can’t crouch. I saw a zebra:

Zebra Jumping Spider

And a wall jumper:

Asiatic Wall Jumping Spider

I didn’t fall down even once, although I was pushing it a bit.