Lumbosacral Transitional Vertebrae in Adolescents: Effects on the Short-Term Outcomes of Percutaneous Endoscopic Lumbar Discectomy
Table 2
Comparison of imaging characteristics.
Characteristics
Group A ()
Group B ()
value
Operated level, (%)
0.473+
L4/5
15 (68.2)
26 (59.1)
L5/S1
7 (31.8)
18 (40.9)
Type of herniation, (%)
0.702+
Central
11 (50)
19 (43.2)
Centrolateral
11 (50)
24 (54.5)
Foraminal
0
1 (2.3)
Herniation level on MRI, (%)
0.332+
L4/5
10 (45.5)
11 (25.0)
L5/S1
7 (31.8)
14 (31.8)
Multisegment
5 (22.7)
19 (43.2)
L4/5, L5/S1
3
12
L3/4, L4/5
0
1
L3/4, L4/5, L5/S1
1
5
L2/3, L3/4, L4/5
1
0
L2/3, L4/5, L5/S1
0
1
Calcification, (%)
5 (22.7)
10 (22.7)
1.000+
SSA (degrees)
33.5 (26.8 ~ 36.3)
25.0 (21.0 ~ 29.8)
<0.001
LLA (degrees)
28.0 (17.5 ~ 40.5)
29.0 (20.0 ~ 32.8)
0.395
Iliac crest height (mm)
15.6 (12.6 ~ 24.6)
0.0 (-1.9 ~ 6.9)
<0.001
Values are presented as Md (), or number (%). SSA: sacral slope angle; LLA: lumbar lordosis angle. Mann–Whitney test. +Pearson’s chi-square test or Fisher’s exact test.
