Impact of intraoperative medial collateral ligament injury on outcomes after total knee arthroplasty: a meta-analysis and systematic review

Table 3 Quality assessment for the studies included in the meta-analysis (NOS)

Study	Selection	Comparability	Exposure or outcome	Total score
Koo [24]	★★★	★★	★★	7
Lee [8]	★★	★	★★★	6
Siqueir [10]	★★★	★★	★★★	8
Cao [13]	★★★	★★	★★	7
Wang [12]	★★★	★★	★★	7
White [30]	★★	★★	★★	6
Jin [20]	★★	★	★★★	6
Motififard [28]	★★★	★★	★★★	8
Rajkumar [11]	★★	★★	★★★	7
Sun [29]	★★★	★	★★★	7

★★★ indicates strong level of evidence; ★★ indicates moderate level of evidence, ★ indicates limited level of evidence
NOS, Newcastle–Ottawa scale

ISSN: 1749-799X