Snodgrass is internationally known for his advocacy of evidence-based surgery, and wrote the textbook Hypospadiology to establish the standard for hypospadias repair.
[8] In 2017, Snodgrass and Bush published the STAG repair, an improvement on older 2-stage graft operations for proximal hypospadias when TIP cannot be done.
He established an annual live surgery course broadcast on the World Wide Web to teach surgeons performing hypospadias repair.
[15] In 2015, Snodgrass and his colleague Nicol Bush self-published a surgical textbook entitled Hypospadiology through a charity, Operation Happenis.
[18] A review of the top 150 influential scientific publications on hypospadias from 1945 to 2013 reported Snodgrass was the most frequently cited author [19]