Yeah, I didn't even realize you had a photo up there. It doesn't even look like your boot is torn. If not, then you are really not in bad shape at all. The main reason the CVs fail is because the boots tear, the grease eventually gets sprayed out and the CV gets dry and then friction happens. That, plus dirt will get in and make matters worse.

But in your case, like Billy said, you probably just need to get a clamp and re-do it. Were these CV boots replaced in the past?

Bart