Three-Dimensional Morphological Characteristics of Lower Lumbar Intervertebral Foramen with Age
Table 2
Results of P-SAP, IPV-SAP, DH and P-IV grouped in different sagittal slices for males.
Male
Entrance
Middle Slice
Exit
P-SAP (mm)
L3/4
Young Age Group
16.6±2.61
13.19±2.44▲
12.54±1.96■●
Middle Age Group
17.85±4.04
13.66±3.64▲
11.82±2.27●
Old Age Group
15.21±3.57
10.87±2.37▲◆★
11.35±3.43●
L4/5
Young Age Group
16.94±3.63
12.79±2.45▲
11.75±1.60●
Middle Age Group
15.67±3.95
12.51±2.79▲◆★
12.23±1.93●
Old Age Group
15.07±3.54
10.07±2.73▲
10.89±2.47●
L5S1
Young Age Group
13.10±3.37
10.28±1.34▲
11.49±1.16■
Middle Age Group
13.33±2.98
10.31±2.42▲
12.34±1.66■
Old Age Group
12.36±3.46
9.22±2.15▲
11.09±3.04
IPV-SAP (mm)
L3/4
Young Age Group
9.05±1.95
9.63±2.22
10.28±2.45
Middle Age Group
8.44±1.33
8.19±1.46▲◆
10.27±2.52■
Old Age Group
8.08±1.75
7.9±1.75★
9.22±2.54
L4/5
Young Age Group
8.50±1.50
9.11±1.68▲
10.71±2.25■●
Middle Age Group
7.77±0.92
8.69±1.01▲
10.73±2.66■●
Old Age Group
7.22±1.75★
8.03±2.04
10.97±2.20■●
L5S1
Young Age Group
9.14±2.11
11.63±2.12▲
16.63±2.76■●
Middle Age Group
9.11±1.93
11.63±3.20▲
17.78±2.29■●
Old Age Group
7.46±1.66◆★
10.46±3.46▲
14.66±3.92■●◆
DH (mm)
L3/4
Young Age Group
5.17±1.08
5.47±0.93
5.92±1.14
Middle Age Group
5.04±0.66
5.02±0.74
5.65±0.91
Old Age Group
2.99±1.27◆★
3.36±1.06◆★
4.13±1.37◆★
L4/5
Young Age Group
4.63±0.95
4.81±1.00
5.60±1.17
Middle Age Group
5.23±0.97
5.42±0.92
6.11±1.07
Old Age Group
3.20±1.33◆★
3.71±1.29◆★
4.64±1.49★
L5S1
Young Age Group
3.64±0.59
4.11±0.77
5.66±1.19
Middle Age Group
3.57±1.43
3.69±1.32
4.76±1.29☆
Old Age Group
1.12±0.73◆★
1.08±0.76◆★
1.39±1.13◆★
P-IV (mm)
L3/4
14.88±2.52
11.25±2.23▲
10.50±2.23●
L4/5
15.20±2.74
11.75±1.97▲
11.10±1.39●
L5S1
14.38±3.12
10.99±1.97▲
9.93±1.54■●
▲p<0.05 Compared with entrance ■p<0.05 Compared with middle slice ●p<0.05 Compared with entrance ☆p<0.05 Compared with the young group ◆p<0.05 Compared with the young group ★p<0.05 Compared with mid-aged group
