Apparently, the place for back surgeries in Philly is called The Rothman Institute http://www.rothmaninstitute.com/
Here are 3 surgeons who came recommended:
Dr. Greg Anderson:
http://www.rothmaninstitute.com/index.cfm/fuseaction/physicians.view/ID/b392c46e-2c2e-4fff-be38-4b8fb1468b61/nodeID/a954b982-1e34-4651-a4cd-de5badca6ec4/referrer/physicians.viewSpecialty/
Dr. Alex Vaccaro:
http://www.rothmaninstitute.com/index.cfm/fuseaction/physicians.view/ID/13f25605-9ec9-4b29-a01d-7f301a34d8f7/nodeID/a954b982-1e34-4651-a4cd-de5badca6ec4/referrer/physicians.viewSpecialty/
Dr. Todd Albert (Medical Director):
http://www.rothmaninstitute.com/index.cfm/fuseaction/physicians.view/ID/e87b23c2-b7de-487a-8903-1f5a8e9a49c7/nodeID/a954b982-1e34-4651-a4cd-de5badca6ec4/referrer/physicians.viewSpecialty/