The Sagittal Pelvic Thickness: A Determining Parameter for the Regulation of the Sagittal Spinopelvic Balance
Table 2
A
B
C
D
E
F
G
Normal/painful total
Painful LBP/+leg pain
Normal/ Spondylolysis Grade 1-2
Normal/ Spondylolysis Grade 3-4
Children/ Spondylolysis Grade 1-2
Children/ Spondylolysis Grade 3-4
Spondylolysis Grade 1-2/3-4
Pelvic incidence (PI)
0.852
NS
3.333
+++
5.468
+++
6.639
+++
7.408
+++
8.17
+++
2.810
++
Jackson’s angle (PR-S1)
0.799
NS
3.459
+++
5.423
+++
6.366
+++
6.9
+++
7.682
+++
2.626
++
Length of the upper plate of S1
0.000
NS
1.449
NS
2.749
++
5.596
+++
10.122
+++
2.08
++
4.197
+++
Femoral heads diameter
0.762
NS
1.662
NS
3.291
+++
4.040
+++
9.77
+++
5.433
+++
1.945
NS
Femoral heads diam./Length S1
1.030
NS
0.798
NS
1.142
NS
8.180
+++
3.22
++
11.583
+++
8.175
+++
Sagittal pelvic thickness
0.000
NS
0.873
NS
2.716
++
2.593
++
6.491
+++
2.928
++
0.771
NS
SPT/length of S1
0.182
NS
2.166
+
0.000
NS
2.751
++
0.244
NS
0.286
NS
2.665
++
SPT/femoral heads diameter
0.253
NS
1.193
NS
1.131
NS
1.663
NS
1.989
+
0.717
NS
0.910
NS
Comparisons of the values of the normal, painful, and spondylolysis groups: between the normal and the total painful group (column A), between the painful cases with and without leg spreading (column B), the normal group and the low grade (column C) and high grade (column D) spondylolysis group, between the children and the low (column E) and high grade spondylolysis group (column F), and between the two spondylolysis groups (column G). + for , ++ for , +++ for .