First experiences with intraoperative CT in navigated sacroiliac (SI) instrumentation: an analysis of 25 cases and comparison with conventional intraoperative 2D and 3D imaging - Privalov, Maxim; Beisemann, Nils; Swartman, Benedict; Vetter, Sven Y.; Grützner, Paul Alfred; Franke, Jochen; Keil, Holger (Injury, 2021)