Table 2 Parameter analysis for survived group and failed group

Demographic

Age, year, mean ± SD

66.0 ± 8.2

66.3 ± 8.0

63.9 ± 9.7

0.124

Sex, female / male

272 / 65

248 / 57

24 / 8

0.389

Diagnosis, OA / ON

266 / 71

242 / 63

24 / 8

0.566

BMI, kg/m², mean ± SD

27.9 ± 3.7

27.9 ± 3.7

28.3 ± 3.8

0.285

Hypertension

180

162

18

0.735

Diabetes mellitus

48

46

2

0.174

Femur size

0.500

A

11

10

1

B

49

44

5

C

130

122

8

D

103

91

12

E

42

36

6

F

2

2

0

Tibia size

0.376

1

143

128

15

2

125

116

9

3

57

49

8

4

12

12

0

Insert size

8.8 ± 1.2

0.351

8

202

181

21

9

41

36

5

10

74

69

5

11

6

6

0

12

12

11

1

14

2

2

0

Radiographic

Pre-op aFTA, mean ± SD (°)

-0.7 ± 3.8

-0.6 ± 3.6

-1.7 ± 5.2

0.137

Post-op aFTA, mean ± SD (°)

5.3 ± 3.8

5.4 ± 3.6

4.0 ± 5.0

0.137

ΔaFTA, mean ± SD (°)

6.0 ± 3.0

6.0 ± 3.1

6.1 ± 2.9

0.529

Pre-op PTS, mean ± SD (°)

9.7 ± 4.2

9.7 ± 4.2

9.8 ± 4.1

0.936

Post-op PTS, mean ± SD (°)

7.5 ± 3.8

7.5 ± 3.7

7.9 ± 4.7

0.575

ΔPTS, mean ± SD (°)

4.2 ± 3.3

4.3 ± 3.3

4.2 ± 3.5

0.677

Pre-op aMPTA, mean ± SD (°)

85.6 ± 2.6

85.6 ± 2.5

84.9 ± 2.9

0.149

Post-op aMPTA, mean ± SD (°)

87.8 ± 4.0

87.9 ± 3.5

87.0 ± 4.4

0.212

ΔaMPTA, mean ± SD (°)

3.7 ± 2.6

3.7 ± 2.6

4.4 ± 2.7

0.149