Table 2: Pre and postoperative sterEOS3D measurements of Cobb and horizontal parameters.
|
Total Curves |
AIS Curves |
ADS Curves |
|
|
Pre-operative measurements |
|||
|
n |
76 |
43 |
33 |
|
Cobb angle |
41 ± 17 |
42 ± 18 |
38 ± 15 |
|
Rotation Index AVR TI |
15 ± 11 22 ± 14 |
13 ± 10 18 ± 11 |
18 ± 13 27 ± 16 |
|
Translation Index SCO Mean of CO T9 to GL CO L3 to GL CO T9 TGDI offset T9 TGDI θ category L3 TGDI offset L3 TGDI θ category |
54 ± 18 22 ± 11 30 ± 22 21 ± 13 79 ± 24 0/0/23/0/17 44 ± 26 1/3/23/0/13 |
56 ± 20 23 ± 10 38 ± 21 18 ± 12 77 ± 26 0/0/17/0/5 30 ± 18 1/3/14/0/4 |
51 ± 16 21 ± 12 21 ± 21 26 ± 14 83 ± 20 0/0/6/0/12 62 ± 23 0/0/9/0/9 |
|
Post-operative measurements |
|||
|
n |
73 |
45 |
34 |
|
Cobb angle |
19 ± 14 *** (p<0,0001) |
18 ± 14 *** (p<0,0001) |
19 ± 14 *** (p<0,0001) |
|
Rotation Index AVR
TI |
11 ± 10 ** (p=0,0024) 19 ± 15 ns (p = 0,69) |
10 ± 9 * (p = 0,0353) 17 ± 15 ns (p=0,8922) |
12 ± 12 ** (p = 0,0081) 21 ± 15 ns (p=0,0973) |
|
Translation Index SCO
Mean of CO
T9 to GL CO
L3 to GL CO
T9 TGDI offset
T9 TGDI θ category L3 TGDI offset
L3 TGDI θ category |
25 ± 11 *** (p<0,0001) 13 ± 7 *** (p<0,0001) 12 ± 9 *** (p<0,0001) 14 ± 9 *** (p=0,0002) 77 ± 17 ns (p = 0,2088) 0/0/2/0/42 36 ± 14 ns (p = 0,0627) 3/1/18/0/18 |
24 ± 13 *** (p<0,0001) 12 ± 5 *** (p<0,0001) 12 ± 10 *** (p = 0,0001) 12 ± 8 * (p=0,0251) 70 ± 16 * (p=0,0477) 0/0/1/0/21 24 ± 35 ns (p=0,9224) 3/1/8/0/10 |
27 ± 8 *** (p = 0,0006) 15 ± 9 * (p = 0,0366) 12 ± 9 ns (p = 0,3380) 15 ± 9 ** (p=0,0027) 81 ± 23 ns (p=1) 0/0/1/0/17 37 ± 50 * (p=0,0210) 0/0/10/0/8 |
Mean Values ±Standard Deviation are reported. Wilcoxon matched-pairs signed rank test was used to compare pre and postoperative values* Statistical significance p < 0,05, ns non-significant Cobb angle and Rotation index are expressed in °, Translation index in mm except forT9 and L3 TGDI θ category for which are reported the number of patients in each category I/II/III/IV/V AIS, Adolescent Idiopathic scoliosis; ADS, Adult Degenerative Scoliosis; AVR, Apical Vertebral Rotation; TI, Torsion Index; SCO, Spread of Coronal Offsets; CO, Coronal Offsets; GL, Gravity Line; TGDI, Transverse Gravitational Deviation Index.