Lowenstromska Hospital 1 article published in JoVE Medicine Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model Henrik Frisk1, Gustav Burström1, Juliane Weinzierl2, Linda Westernhagen2, Florentin Tranchant2, Erik Edström1,3, Adrian Elmi-Terander1,3 1Department of Clinical Neuroscience, Karolinska Institutet, 2Brainlab AG, 3Capio Spine Center Stockholm, Löwenströmska Hospital The augmented reality head-mounted display, Magic Leap, was used in combination with a conventional navigation system to place pedicle screws in a porcine model by adhering to a novel workflow. With a median insertion time of <2.5 min, submillimeter technical accuracy and 100% clinical accuracy were achieved according to Gertzbein.