Man, everyone keeps ragging on Andrade's injuries like he's bag o' glass Trezeguet here. The guy had his leg snapped in half during a match at the end of the 2005-2006 season, so he had to sit out WC 2006 plus much of the La Liga last year. He's been back since Spring and, IMO, looks solid. Though I suspect he's not 100% just yet.
Will he ever be up to his old 100%? That is a risk. But his current 90+% seems pretty damn good thus far. Is he injury prone? No more than you would be if someone broke your leg a year ago.