In 1988, Dr. Zucherman and Dr. Hsu established a spine surgery fellowship at St. Mary’s Medical Center. In 1996, we started the San Francisco Combined Spine Fellowship with Stanford University. In 2006, Dr. Dimitriy Kondrashov joined Dr. Zucherman and Dr. Hsu. Dr. Kondrashov is one of the very best spine surgeons to complete the Stanford/St. Mary’s Combined Spine Surgery Fellowship program. Dr. Kondrashov is fluent in both English and Russian. Dr. Kondrashov participated in two iFuse or SI fusion studies, the first SIFI prospective study, and the second Lotus retrospective study on SI fusion.