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Table 1 Key characteristics of RCTs included in the meta-analysis

From: An updated meta-analysis evaluating limb management after total knee arthroplasty—what is the optimal method?

Studies Type Study period Sample size Mean age (mean) Gender (F/M) Disease
Flexion Extension
Flexion Extension Flexion Extension Flexion Extension OA RA PO OA RA PO
Ong 2003 [42] RCT 2000 20 20 71 74 12/8 13/7 20 0 0 20 0 0
Ma 2008 [27] RCT 2005–2006 49 46 71 70.6 25/24 22/24 46 3 0 42 4 0
Li 2017 [24] RCT 2011–2012 54 54 72.6 71.7 43/11 46/8 47 7 0 44 10 0
Liu 2015 [22] RCT 2013–2014 50 50 73.1 72.4 34/16 32/18 50 0 0 50 0 0
Zeng 2018 [26] RCT 2016–2017 30 30 68.78 69.68 21/9 20/10 NA NA 0 NA NA 0
Panni 2014 [25] RCT 2012–2013 50 50 69 61 38/12 40/10 50 0 0 50 0 0
Yang 2015 [23] RCT 2012–2014 23 23 73.6 72.5 11/12 10/13 23 0 0 23 0 0
Antinolfi 2014 [28] RCT NA 20 20 73 70.7 13/7 10/10 20 0 0 20 0 0
Napier 2014 I [20] RCT 2003–2004 86 89 70.4 71 64/22 58/32 78 5 3 78 6 5
Napier 2014 II [20] RCT 2006 134 140 68.9 70.9 83/51 101/39 131 3 0 137 3 0
Li 2012 [21] RCT 2008 55 55 71 70 40/15 38/17 47 8 0 46 9 0
Zhao 2014 [36] RCT 2011–2013 111 102 64.2 63.2 111/0 102/0 111 0 0 102 0 0
Shen 2016 [38] RCT 2013–2016 90 90 61.9 62.3 54/36 53/37 90 0 0 90 0 0
Hu 2013 [35] RCT 2010–2012 65 68 67.7 67.8 65/0 68/0 65 0 0 68 0 0
Li 2016 [39] RCT 2015 50 50 63.1 62.4 16/34 18/32 50 0 0 50 0 0
Guo 2013 [37] RCT 2012 30 30 72 71 23/7 22/8 30 0 0 30 0 0
Peng 2016 I [34] RCT 2014–2015 30 30 73.5 73.0 18/12 19/11 30 0 0 30 0 0
Peng 2016 II [34] RCT 2014–2015 30 30 74.1 73.0 17/13 19/11 30 0 0 30 0 0
  1. Abbreviations: OA osteoarthritis, RA rheumatoid arthritis, PO patellofemoral osteoarthritis, NA not available