We are all different.
I am 6 months post op and today was the first day I could run a few steps without it feeling too weird. I tried a month ago, and the foot on my operated leg wanted to pigeon toe in and my entire thigh hurt for a day. And that was after only about a dozen steps.
I decided to wait a month and try again. Today I tried the same dozen steps, and my thigh muscles feel OK tonight.
It seems to me–and this is just my observation, nothing scientific–that people who have anterior surgery can return to running sooner than those who had posterior. I had posterior.
–Hoppie