And I have no reason to doubt those studies...matter of fact, if I needed my gallbladder out I"d be more likely to go to our local community hospital (where those surgeons do it much more frequently than the academic ones) but if I needed a Whipple I sure as heck wouldn't go there. A friend and I used to compare our surgical experience as residents in the same town, different residencies. He had done dozens x more appys and gallbladders than I, and I, by my 3rd year, could tell him how to do the Whipple when he was a Chief and had never done one.
At any rate, there is nothing wrong with specialization and getting good at a procedure by doing it over and over again. However, I still stand by my ascertation that the goal of a surgical residency is not to make you the best "x" surgeon out there but to expose you to a broad range of techniques, complications, anatomy, etc. Without those years of general surgery teaching you just the basics, you cannot master the more complicated stuff. Besides, there is a lot more to being a surgeon that just operating. A good surgical residency also teaches you about the peri-operative care of the patient, including medical managment of chronic diseases and some acute presentations in surgical patients. In a superspecialized residency, focusing on trauma, vascular, CT, etc. there isn't time for that as well as learning good general surgical practice.
Just my two cents...I'm sure there are plenty of others here (especially some of those interested in Vascular and CT) who will disagree. njbmd needs to weigh in here...he has some strong opinions on the subject.