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Table 3 Radiological results before surgery and at the last follow-up

From: Correction of severe lower extremity deformity with digital hexapod external fixator based on CT data

Case no

Side

Pre-MAD (mm)

Post-MAD (mm)

Pre-FTA (°)

Post-FTA (°)

Pre-MPTA (°)

Post-MPTA (°)

Pre-LLD (mm)

Post-LLD (mm)

Femoral osteotomy

1

Right

90.38

5.5

152

177

47

86

5.8

3.1

Yes

1

Left

82.14

4.9

156

180

57

86

5.8

3.1

Yes

2

Left

55.2

6

165

177

63

86

30.21

8

Yes

3

Right

75.4

33.6

157

170

66

82

6

15

No

3

Left

48.5

0

164

178

73

87

6

15

No

4

Right

74.2

5

150

178

68

94

4

5

Yes

4

Left

42

1.6

165

181

80

90

4

5

Yes

5

Right

42.6

0

165

179

66

88

2

16

Yes

5

Left

34.4

2.62

168

180

66

89

2

16

Yes

6

Left

39.1

5.7

169

180

73

86

8

6

Yes

7

Right

78.7

17.6

152

174

70

87

0.5

1.2

Yes

7

Left

71.5

5.5

152

179

72

87

0.5

1.2

Yes

8

Right

− 30.9

12.2

188

176

86

86

7

8

Yes

9

Right

59.6

16.3

164

177

70

87

27

8

Yes

10

Left

113.3

42.9

138

165

59

87

38

3

No

11

Left

67.1

7.6

159

177

70

88

9

0

No

12

Left

− 55.2

12.4

200

176

88

87

42.5

34

Yes

13

Left

36.2

0

171

180

81

90

5

0

No

14

Right

35.4

12.5

170

176

81

89

5

0

No

14

Left

33.1

0

170

179

81

91

5

0

No

15

Right

27.9

8.2

172

178

86

88

1

3

No

15

Left

22.7

11.3

173

178

86

88

1

3

No

16

Right

− 118.2

− 4

218

181

105

91

85

6.5

Yes

17

Left

47.2

0

167

180

79

89

8.5

12.5

No

18

Left

32

− 5

170

181

73

82

12

5

Yes

19

Left

27.6

2.9

171

180

81

88

13.5

6.8

No

20

Right

57.5

7.3

164

178

87

87

22.7

9.4

No

21

Right

− 17

0

186

180

92

87

30

20

No

Mean

54.1

8.2

167

177

75

87

13.8

7.6

  1. Positive MAD value, mFTA<180°, indicating genu varus, negative MAD value, mFTA>180, indicating genu valgus. was the result of statistics using the absolute number value