Table 1 Summary of studies included in meta-analysis

Koster LA et al., 2021 [10]

Netherlands

RCT

Persona

NexGen

Actual TKA

31/31

38/38

13/19

16/22

63.8 ± 12.0

67.3 ± 8.0

Revision rate

24

Minoda Y et al., 2017 [11]

Japan

RCT

Advance medial pivot

Evolution medial pivot

Actual TKA

31/31^a

2/29^a

69 ± 13^a

Overhang

None

Indelli PF et al., 2015 [12]

USA

RCT

Persona

NexGen

Actual TKA

40/40

40/40

16/24

15/25

71(66–80)^b

72(60–81)^b

Rotation of the tibial component; Revision rate;

Clinical outcomes (Anterior knee pain, Oxford, ROM, Overall satisfaction rate, Survivorship)

24

Cho BW et al., 2020 [13]

Korea

Retrospective cohort

Persona

NexGen

Actual TKA

59/78

58/74

9/50

4/54

71.2 ± 5.7

71.1 ± 6.2

Underhang; Overhang; Revision rate; Clinical outcomes (VAS, KSS, WOMAC)

31.9 ± 5.8

33.9 ± 11.5

Rhee SJ et al., 2018 [14]

Korea

RCT

Persona

NexGen

Actual TKA

NR/50

NR/51

4/46

7/44

67.3 ± 7.3

68.7 ± 7.2

Rotation of the tibial component

0.5

Jin C et al., 2016 [15]

Korea

Retrospective cohort

Persona

NexGen

Actual TKA

100/100^a

9/91^a

71(56–83)^a,b

Coverage rate; Underhang; Overhang;

None

Shaet s al, 2015 [16]

India

RCT

Genesis II

NexGen

Virtual TKA

150/300^a

63/87^a

35.5(18–50)^a,b

Coverage rate; Underhang; Overhang;

None

Meier M et al., 2018 [17]

USA

Retrospective cohort

Persona

Sigma

Virtual TKA

100/100^a

50/50^a

65.6(49–93) ^a,b

Coverage rate

None

Stulberg SD et al., 2015 [18]

USA

Retrospective cohort

Persona

NexGen

Virtual TKA

91/100^a

29/62^a

66.4(41–84) ^a,b

Coverage rate; Rotation of the tibial component; Malrotation

None

Ma Y et al., 2017 [19]

Japan

Retrospective cohort

Persona

NexGen

Virtual TKA

77/77^a

15/62^a

NR

Overhang; Rotation of the tibial component

None

Martin S et al., 2014 [20]

USA

Retrospective cohort

NR

NR

Virtual TKA

30/30^a

NR

NR

Coverage rate; Rotation of the tibial component; Malrotation

None

Wernecke GC et al., 2012 [21]

Australia

Retrospective cohort

Genesis II

NexGen

Virtual TKA

101/101^a

74/27^a

32(17–60) ^a,b

Coverage rate; Underhang; Overhang;

None

Clary C et al., 2014 [22]

USA

Retrospective cohort

Genesis II

Sigma

Virtual TKA

14,791/14791^a

NR

NR

Coverage rate

None

Miyatake N et al., 2016 [23]

Japan

Retrospective cohort

Genesis II

NexGen

Actual TKA

NR/92

NR/586

9/83

111/475

73.7 ± 6.7^a

Underhang

None

Maciag BM et al., 2021 [24]

Poland

Retrospective cohort

Persona

NexGen

Actual TKA

39/39

34/34

13/26

12/22

68.6 ± 6.3

69.5 ± 5.7

Underhang; Overhang;

1.5

Bizzozero P et al., 2018 [25]

France

Retrospective cohort

Persona

NexGen

Actual TKA

33/33

33/33

15/17

15/17

77(57–92)^b

75(66–89)^b

Coverage rate; Overhang; Rotation of the tibial component; Malrotation; Clinical outcomes (KSS)

44 ± 5.4

46 ± 5.7