Without knowing specifics about Marco's injury it seems possible there wasn't really a surgical intervention available for his particular issue, perhaps it was more degenerative in nature. I'm not sure why you are so gung-ho here that Paxton should have just went under the knife immediately. In my limited interaction with surgeons they have always recommended surgery as a final option, not the first. Surgery always carries risks of complications, things like infections and ultimately death are possible. Opting for more conservative and hence lower risk treatment is recommended first is at all possible.