SGU has about 4000 medical students, which is about 11-12 times the size of my medical school. The med school class I started with (before I went off to do my PhD) had 87 graduates: six matched ortho and two matched plastics. There's no way that ratio is true at any Caribbean school.
For Ortho (2009 data so it's likely worse now), 589 of 744 the US seniors who applied matched. The numbers for independent applicant (who includes DO, US med grads who graduated in a previous year and all other grads from around the world), the numbers were 53 of 179. My educated guess is that most of those 53 spots went to DO and previous US grads.
For integrated plastics, the numbers are: U.S senior - 85/162, independent - 12/29, with the same caveats.
These numbers will only become more unfavorable to imgs as the number of new U.S. allopathic (and osteopathic) seniors increases with new medical schools opening. By the time you finish med school at SGU your chances at matching to a competitive surgical specialty will be much lower than the low chances you have today.
The Caribbean was an okay choice twenty years ago. Now, it's like playing the lottery to go there. You may get lucky and graduate and get a US residency, but probably not. The new factors against Caribbean grads are these:
1) More U.S. allopathic and osteopathic medical schools have opened over the last few years and more will open in the next few years.
2) Most U.S. med schools are getting pressure to expand their class sizes and are acquiescing to that pressure (mine has expanded class size by about 20% in 4 years).
3) There is no new money for residency funding: there aren't many new slots. So we have more U.S. medical graduates (and imgs) going after the same number of spots.
4) The clinical sites in the US for the Caribbean schools are
in jeopardy.
5) "All-in" has been instituted for the 2013 match. That means no more pre-matching. This will significantly hurt the chances of IMGs to match in the US.
Anyone who says the Caribbean is still a good option for medical school is creating false hope.