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. 2022 Jan 18;13(1):78–86. doi: 10.5312/wjo.v13.i1.78

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©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/

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Intra-articular image of a right tibiotalar joint, taken with the 0° arthroscope inserted through the anteromedial portal. Substantial chondral wear can be seen on talus and tibia, with uncovered bone clearly visible.