About the potential injuries, this extract from a recent Plushy interview might be relevant:
Evgeni Plushenko: --- The reason why I had so many injuries and surgeries is that in my time we had no doctors, rehabilitation or proper understanding of these issues. We only trained hard and had no rehabilitation whatsoever. Now I see it all and if my kids will have doctors, rehab programs, massages, saunas, pools, they can have a very long career in sports and minimize the traumas.
HealthyLivinG Magazine: I suppose athletes from developed countries might have had better conditions but none lived in sport as a top achiever as long as you.
Evgeni Plushenko: I don’t really know their conditions. Today we have everything. I am very pleased how the sport ministry takes care of us these days: we have doctors, rehab programs, pools—everything we need. Unfortunately, this wasn’t the case for most of the time I trained. If I had these earlier, many of my injuries and surgeries would have been prevented.