5'11" to 6'2". A combination of straightened legs, improved posture because I don't slouch anymore, and the size of the replacement joints. For most folks who undergo knee replacement any height increase is minor.

Oh, I'm replacing my shoes as well. At least the ones that have a wear pattern.

BTW when I lost my 158 pounds six years ago I dropped 1.5 shoe sizes. Do you have smaller hooves now?