Crijns TJ, Mellema JJ, Ozkan S, et al. - This research was sought to compare the interobserver agreement between (subgroups of) observers classifying 3DCT reconstructions of tibial plateau fractures according to Schatzker, Luo, and AO/OTA, recognition of different fracture characteristics, and the level of confidence on a scale from 0 to 10 with and without subtraction of the unfractured bones. Between 2013 and 2014, a total of 20 consecutive 3DCT reconstructions of tibial plateau fractures treated in a level I trauma center were selected in the study. The data that agreement on the categorization of tibial plateau fractures is limited on 3DCT scan and is not enhanced by subtraction of unfractured bones implies that disagreement may be based on variations in understanding and bias. The results considered that the reliability of these classification systems might benefit from a focus on accounting for these pre-existing conceptualizations rather than the further emphasis on imaging detail.