I was diagnosed with AVN at 23 years of age and was told that I would eventually have it in my other hip. I had my hip totally replaced at 26. I'm 42 now and have had no signs of it in my other hip, but it's time for a revision and I would like to know what to expect. Also, I'm questioning how this developed. The doctor then had lots of possibilities. If I was a candidate for having this bilaterally, would I have not already experienced this. I was involved in a motorcycle accident when I was 17 and was slammed into a truck on the side that developed the AVN. I did not break any bones that they could find at that time. Is it possible the trauma from the hit then eventually caused me to have my hip replaced 6 years later?