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Table 2 Differences of landmark coordinates between VSP and actual result (mm)

From: Accuracy of virtual surgical planning in segmental osteotomy in combination with bimaxillary orthognathic surgery with surgery first approach

Coordinates

T1 − T0

P

RMSD

Mean

SD

ANS x

0.08

0.66

0.71

0.63

y

 − 0.65

1.76

0.27

1.79

z

0.34

1.40

0.46

1.37

PNS x

0.28

0.96

0.38

0.96

y

 − 0.62

1.38

0.19

1.45

z

0.78

1.13

0.06

1.32

A x

0.18

0.68

0.27

0.69

y

 − 0.32

1.40

0.32

1.16

z

0.13

1.05

0.60

1.03

U1 x

 − 0.09

1.10

0.80

1.05

y

0.22

2.17

0.76

2.07

z

 − 0.54

1.38

0.25

1.42

13 x

 − 0.42

1.19

0.30

1.21

y

0.27

1.79

0.65

1.72

z

 − 0.50

0.82

0.09

0.92

23 x

 − 0.06

1.12

0.87

1.07

y

 − 0.24

2.18

0.74

2.09

z

 − 0.88

1.27

0.06

1.49

16 x

 − 0.03

1.24

0.94

1.18

y

 − 0.44

1.91

0.49

1.86

z

 − 0.43

0.80

0.12

0.87

26 x

 − 0.17

1.11

0.64

1.07

y

0.17

1.89

0.89

1.80

z

 − 0.52

0.97

0.12

1.06

B x

 − 0.43

1.35

0.34

1.35

y

 − 0.11

1.74

0.85

1.65

z

0.09

1.21

0.82

1.15

L1 x

 − 0.33

1.25

0.43

1.23

y

0.33

1.83

0.58

1.77

z

 − 0.23

1.64

0.67

1.58

33 x

 − 0.33

1.41

0.48

1.37

y

0.21

1.86

0.73

1.77

z

 − 0.13

1.83

0.83

1.74

43 x

 − 0.30

1.27

0.47

1.24

y

0.29

1.88

0.64

1.81

z

 − 0.15

1.66

0.78

1.58

36 x

 − 0.61

1.11

0.12

1.21

y

0.09

2.00

0.89

1.90

z

0.38

0.84

0.18

0.88

46 x

 − 0.21

1.07

0.55

1.04

y

 − 0.06

1.92

0.92

1.82

z

0.35

0.99

0.29

1.00

Me x

 − 0.45

1.48

0.59

1.36

y

 − 0.78

1.73

0.44

1.69

z

0.08

1.02

0.89

0.89

Pog x

 − 0.78

0.57

0.07

0.92

y

 − 0.15

0.90

0.76

0.79

z

0.20

1.06

0.73

0.94

  1. T1 postoperative actual result, T0 preoperative VSP, SD standard deviation