by Elizabeth Hofheinz, M.P.H., M.Ed., October 7, 2019 It was with great fanfare that RTI Surgical rolled out new clinical data at NASS last week. A major announcement was the interim clinical outcomes of the EVoluSIon Clinical Trial for the SImmetrySacroiliac Joint Fusion System. The prospective, multicenter single-arm study is examining SI joint pain reduction …