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. 2021 Mar 4;11:5225. doi: 10.1038/s41598-021-84710-y

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© The Author(s) 2021

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(a) All performed regular total knee arthroplasty procedures from 2008 to 2018. (b) All performed partial knee arthroplasty procedures from 2008 to 2018. (c) All performed semi-constrained and constrained total knee arthroplasty procedures from 2008 to 2018 (black = semi-constrained; grey = constrained).