"call me crazy...but I would much rather have a cast around my leg than endure a terribly invasive surgical procedure that may require additional surgery to remove (although many MD's choose to leave them in unless there is some kind of irritation). IM nailing is not simply an alternative to a cast; as mentioned in other comments, it is only used when necessary (which is based on the type and severity of the fracture). And that doesn't even consider the problems that will be encountered at the airport..."
- Andy Hardison