Beerekamp MSH, et al. - This study compared additional intra-operative fluoroscopic 3D-imaging with 2D-imaging alone in terms of intra-operative corrections, peri-operative imaging used, and patient-relevant outcomes. Findings reported that intra-operative 3D-imaging resulted in additional corrections by offering additional information and, also probably changed the surgeons’ attitude to rely more on 3D-imaging, hence a 15%-decrease of corrections performed after 2D-imaging when 3D imaging was available. Notably, no evidence reported cost attenuation via reduction in peri-operative imaging or in terms of improved patient-relevant outcomes.