Hopefully it's like being hit by lightning...rare enough that no action is called for in regard to prevention.
I would have thought so, but myself and two other athletes I have come across through my team have (or had) the same condition. I don't know a super-large number of athletes, and I have been surprised that I've met two others in a fairly small pool.
Not that we should all be riding with more open hip angles or lining up bovine artery grafts ... It's just caused me to think this affliction might be more common than we assume.
Interesting that one of the articles highlights the aerodynamic position of cyclists as a culprit. remedy: sit straight up in tt's.