Fig. 2From: The technical feasibility and preliminary results of minimally invasive endoscopic-TLIF based on electromagnetic navigation: a case seriesThe incision design. According to C-arm positioning, bilateral iliac crest and pedicles were marked. In the electromagnetic navigation group, the incision was determined under the guidance of the Access Tracker, which could demonstrate the precise position of the trajectory to the pedicle. In the conventional group, the incision was roughly 5 cm to 6 cm away from the median spinous processBack to article page