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. 2020 Aug 31;32:47. doi: 10.1186/s43019-020-00065-0

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© The Author(s) 2020

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. 5 — Mean Western Ontario and MacMaster Universities Osteoarthritis Index (WOMAC) sub-scores. Overall a significant improvement of 6-month post-operative results as compared to pre-operative findings for the bicompartmental knee replacement (BKR) and total knee replacement (TKR) groups but not the unicompartmental knee replacement (UKR) group. Thereafter, no further statistically significant longitudinal improvement generally within any of the groups at any time point