Every September, JAMA publishes information about all residencies. I usually post this every September, but I think it slipped by me this year. So, just for our forum database, here are the stats

As of August 2003 (always a year before)
152 Programs
3024 Orthopedic Residents
2942 (97.3%) USMDs
285 (9.4%) Women
62 (2.1%) IMGs
2 (0.1%) Canadians
18 (0.6%) DOs