The Quebec Athletic Commission handed out medical suspensions for all UFC 154 fighters. They didn't specifically state reasons for each suspension, but I'd imagine a huge reason why Martin Kampmann is suspended for 60 days is because Johny Hendricks sent him nearly flying out of the cage. Georges St. Pierre and Carlos Condit were given 28 and 30 days respectively.
Here are the rest of the suspensions starting from those given just 7 days all the way up to those who received 60 days.
Georges St. Pierre