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Table 1 Characteristics of the studies included

From: Kinematic alignment versus mechanical alignment in primary total knee arthroplasty: an updated meta-analysis of randomized controlled trials

References

Years

Location

Study design

Sample size

Mean age

Female

Follow-up times (months)

Outcomes

KA

MA

KA

MA

KA

MA

Kaneda [35]

2021

Japan

RCT

8

2

76.3

75

NA

5

12

HKA, mLDFA, mMPTA,FFA,TS

Matsumoto [29]

2020

Japan

RCT

30

30

74.2

75.5

25

26

12

HKA, mLDFA, mMPTA, KSS, ROM

Young [25]

2020

New Zealand

RCT

47

48

NA

NA

NA

NA

60

KSS, WOMAC, OKS, EQ-5D, FJ, Complication

MacDessi [31]

2020

Australia

RCT

70

68

67.4

69.0

40

34

12

HKA, mLDFA, mMPTA, KOOS, EQ-5D, FJS, OT

McEwen [28]

2020

New Zealand

RCT

41

41

NA

NA

NA

NA

24

HKA, mLDFA, mMPTA, JLOA, FFA,TS, ROM, KOOS, OKS, FJS, Complication

Laende [32]

2019

Canada

RCT

24

23

64

63

16

17

24

HKA, mMPTA, OKS

Yeo [26]

2018

South Korea

RCT

30

30

72

74

25

27

96

HKA, mLDFA, mMPTA, FFA, TS,WOMAC, ROM

Matsumoto [30]

2017

Japan

RCT

30

30

75.3

76.1

18

20

24

HKA, JLOA, KSS, ROM

Waterson [27]

2016

United Kingdom

RCT

36

35

NA

NA

NA

NA

12

KSS, ROM, EQ-5D

Calliess [33]

2016

Germany

RCT

100

100

67

70

61

57

12

HKA, mLDFA, mMPTA, FFA, TS, WOMAC, Complication

Young [24]

2016

New Zealand

RCT

49

50

72

70

24

24

24

HKA, FKA, mLDFA, mMPTA, TS, KSS, WOMAC, ROM, OKS, EQ-5D, FJS, OT, WL, HS, Complication

Belvedere [34]

2015

Italy

RCT

6

11

NA

NA

NA

NA

6

KSS

Dossett [20]

2014

United States

RCT

44

44

66

66

3

6

24

HKA, FKA, mLDFA, mMPTA, JLOA, KSS, WOMAC, ROM, OKS, HS,CHb,WD, Complication

Dossett [19]

2012

United States

RCT

41

41

65

66

2

6

6

HKA, FKA, mLDFA, mMPTA, JLOA, FFA, TS, KSS, WOMAC, ROM, OKS, Complication, OT, WL, HS, CHb, WD

  1. KA kinematic alignment, MA mechanical alignment, HKA hip–knee–ankle angle, FKA femoral knee angle, mLDFA mechanical lateral distal femoral angle, mMPTA mechanical medial proximal tibial angle, JLOA joint line orientation angle, FFA femoral flexion–extension angle, TS tibial slope, KSS knee society score, KOOS Knee Injury and Osteoarthritis Outcome Score, WOMAC Western Ontario and McMaster Universities Osteoarthritis Index, OKS Oxford Knee Score, EQ-5D EuroQoL 5-dimension questionnaire, FJS Forgotten Joint Score, ROM range of motion, OT operative time, WL wound length, HS hospital stay, CHb change in hemoglobin, WD walking distance, NA not applicable, RCT randomized controlled clinical trials