I was diagnosed with AVN in January 2019 with RTHR in June 2019.
as an avid runner (road and trails), I thought running was over when first diagnosed. This was the first group I found that gave me hope this was not the case.
I stayed strong prior to surgery, still running 20 miles a week right up to surgery, even with collapsed hip then started running 5 1/2 weeks after
Now 7 months I have run 2 Spartans, 2 5 Ks 1/2 marathon trail race 
and up to 40 miles a week I am currently training for my 1st Boston Marathon in April 2020 after qualifying in Chicago prior to AVN diagnosis
thanks again