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Table 2 Quality assessment of 3 non-randomized controlled trials

From: Effect of tourniquet application on cement penetration in primary total knee arthroplasty: a meta-analysis

Studies Newcastle-Ottawa Scale Quality
Selection Comparability Exposure
Touzopoulos 2019 [18] *** ** *** High
Herndon 2019 [19] *** ** *** High
Dincel 2020 [20] *** ** *** High
  1. **, scored 2 points; ***, scored three points