**3.7. Sagittal vertical axis**

After 9 months, the global sagittal balance of the spine improved, with reduction of the anteroposterior truncal shift toward a more neutral position. The post- and pre-intervention difference was statistically significant at *p* < 0.032 (**Table 4**).


**Table 4.** The pre- and post-intervention spinopelvic and global sagittal balance measurements .


**Patient**  B

1

2

3

4

5 6

7 8

9

10

11

12

Mean

SD

p

0.083 measurements were in degrees.

\* Statistical significance.

**Table 4.** The pre- and post-intervention spinopelvic and global sagittal balance measurements .

0.097

0.066

0.03\*

0.032\* Subj, subjects; B, baseline; SS, sacral slope; SVA, sagittal vertical axis; PI, pelvic incidence; PT, pelvic tilt; PI-LL, pelvic incidence minus lumbar lordosis. Except for SVA, all

0.68

0.0032\*

0.114

 16.6

 14.4

 14.5

 12

 23.8

 23.4

 8

7

49.2

 33.5

 10.9

 12.4

 9.4

 9.7

 1.9

 1.9

 31.9

 26.8

 34.3

 37.3

 7.2

 11.4

 25.3

 28.8

 10.2

 −7.5

 45.3

 45.0

 20.0

 16.2

 11.1

 7.8

 32

 22

 33

 36

 11

 19

 28

 28

 38

 0

 33

 30

5

2

 0

 −6

 13

 18

 48

 50

 −38

 −18

 38

 33

 2.7

 −4.8

 54

 52

 16

 19

 6

 2

 49

 46

 40

 39

 15

 20

 35

 32

 −22.1

 0

 52

 48

 17

 16

 12

 9

 32

 27

 42

 36

 16

 30

 23

 30

 −32.8

 −61.9

 42

 45

 19

 15

 0

 9

 42

 39

 48

 54

 −16

 −19

 20

 25

 −46

 −42.4

 33

 31

 13

 6

 −15

 −23

32

 19

 10

 24

 20

 27

 17

 22

 23.5

 0

 35

 32

 18

 10

 25

 8

 60

 37

 48

 47

 1

 2

 31

 32

 −12

 −11.3

 52

 54

 21

 22

 4

7

17

 6

 33

 32

 12

7

36

 45

 30

 −14

 62

 65

 26

 20

 29

 33

 11

 25

 32

 43

 −22

 −21

 21

 33

 −8.3

 −6.1

 44

 47

 23

 14

 12

 4

102 Innovations in Spinal Deformities and Postural Disorders

 42

 41

 28

 28

 30

 31

 15

 18

 85.3

 26.3

 33

 32

 18

 14

5

4

 8

 1

 4

 12

 51

55

17

 23

 108.7

 67.3

 62

 64

 45

 41

 58

 52

 45

 41

 45

 46

 6

 4

 23

 25

 −45

 −42.5

 42

 40

 19

 15

 −3

 −6

9 months B

9 months B

9 months B

9 months B

9 months B

9 months B

9 months B

9 months

**T4-12 kyphosis°**

**L1-5 lordosis°**

**T10-L2 kyphosis°**

 **SS°**

**SVA (mm)**

 **PI°**

**PT°**

**PI-LL°**

**Table 5.** The SRS-22 Score of the subjects pre- and post-intervention.

#### **3.8. SRS-22**

Comparing the baseline and the results at 9th month showed that there was no significant difference of scores in the function and pain domains (**Table 5**). There were, however, significant difference of scores for the self-image (*p* = 0.001), mental health (*p* = 0.004), and satisfaction/ dissatisfaction domains (0.018). The difference in SRS-22 total score was also statistically different (*p* = 0.0016).
