I have written a post on avascular necrosis where I wrote on the stages and the cure, you can read that here. AVN is a really difficult thing to manage especially when it involves the femur or the hip joint where victim will have to reduce weight on the affected part and might even require crutches when it gets to some stages.

Living with Avascular Necrosis is really difficult from the pain to the sudden disability that comes with it, it is really difficult living with AVN as victim's life might be on hold until they can walk again, the hardest part of having AVN for me...

http://www.azyearn.com.ng/2017/11/livivng-with-avascular-necrosis-avn.html