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. 2022 Mar 14;23:247. doi: 10.1186/s12891-022-05174-3

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 2 — Illustration of coronal tibial slope measurement on T1 MRI sequence. a Axial plane through the tibiofemoral joint showing the top view of the tibial plateau. The yellow line represents the coronal plane that passed closest to the centroid of the tibial plateau. b Using the coronal view, two lines are drawn across the lateral and medial sides. The coronal longitudinal axis was determined by having a line connecting these two midpoints. c The coronal tibial slope was formed as an angle measured by a line drawn along the peak points on the medial and lateral aspects of the plateau and the line perpendicular to the coronal longitudinal (tibial) axis