If you define "pattern" as the same bone breaking over and over, then you are correct. OTOH, Oden has had 4 leg injuries (1 hip and 3 knee injuries) - and only one (the collision with Maggette) had an obvious cause.
You reject even the possibility these injuries are related? Fine.
I don't know if I'd consider a knee to knee brace being an injury one could associate with "injury prone" or "patterns".
That was just dumb luck.
As for the other "patterns", like I said, for it to be something that you are on the look out for, it'd be good if the two main injuries he had were A: related or B: in the same knee. Or hell, the same PART of the knee if you want to use both knees as one "body part".
They aren't related injuries, and considering Joel basically did the same thing a few games later (although worse), maybe we should give Joel a pre-emptive microfracture procedure on his good knee.
A pattern, to me, is when he keeps spraining/breaking the same actual body part. Either not giving himself enough time to heal (one could argue Brandon in this scenario), or because of genetics (Bowie's bones, Waltons feet/ankles).
In Greg's case, it could just be that because of one leg being shorter than the other, and not having the $$ to correct it (with shoes, or whatever), it could've caused undue pressure on one knee. As for his 2nd knee injury, that could just be a freak incident, where his legs were too strong for his knee (that is one theory I heard. Don't remember where).
I guess they're related, in the sense that he might've been over compensating with the leg length issue and that might've caused the original knee injury.
But I don't see how a microfracture repair on one knee, could have anything to do with the injury to his patella. Please explain how that is possible.
Are there magic goblins that live in his knees, and travel up one leg to the other, and tinker with his knee-cap on his other knee? Did the doctor hypnotize Greg when he was under the knife, so he'd injure his knee because he jumped?
How is the MF in the right knee (which wasn't giving him problems anymore) related to the patella breaking in his left knee?