From their website:

Wherever you decide to have your surgery, you should inquire about the rate of infection in their facility. Our rate of infection for 2006 was 0.3%, for 2007 was 0.2%, for 2008 was 0.04% and for 2009 and 2010 was .001%. These percentages are astoundingly low compared with an estimated national average of 2.6 % per year.