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The search results and selection procedure. The literature search identified 489 citations. Of these, we removed 330 duplicates. Upon reviewing the titles and abstracts of the 159 remaining articles, we excluded 144 papers according to the inclusion criteria and retrieved the full text of 13 articles. Finally, we identified 1204 TKAs (1201 patients) assessed in 13 randomized controlled trials. TKA = total knee arthroplasty.
