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| |
PD+ group
|
PD− group
|
p-value
|
|---|
|
Cases, n
|
24
|
24
|
–
|
|
Age at surgery (years)
|
70.8 ± 6.5
|
70.6 ± 11.5
|
0.95
|
|
Sex (male/female), m
|
5/19
|
3/21
|
0.70
|
|
BMI
|
23.2 ± 4.1
|
24.0 ± 4.1
|
0.49
|
|
BMD (T-score)
|
−1.7 ± 1.2
|
− 2.0 ± 0.75
|
0.55
|
|
Number of fixed levels
|
9.0 ± 2.4
|
9.0 ± 2.0
|
0.95
|
|
3CO (yes/no)
|
7/17
|
11/13
|
0.37
|
|
Fix to sacrum (yes/no)
|
24/0
|
24/0
|
–
|
|
Pre SVA (mm)
|
185.7 ± 62.4
|
182.9 ± 76.9
|
0.89
|
|
Pre LL (°)
|
0.04 ± 21.8
|
−1.0 ± 20.0
|
0.86
|
|
Mechanical complication (yes/no)
|
14/10 (58.3%)
|
11/13 (45.8%)
|
0.38
|
|
Rod failure (yes/no)
|
6/18 (25.0%)
|
4/20 (16.7%)
|
0.48
|
|
Non-union
|
10/14 (41.7%)
|
4/20 (16.7%)
|
0.059
|
|
PJK (yes/no)
|
7/17 (29.2%)
|
9/15 (37.5%)
|
0.54
|
|
DJK (yes/no)
|
2/22 (8.3%)
|
0/24 (0%)
|
0.15
|
|
Vertebral fracture (yes/no)
|
6/18 (25.0%)
|
8/16 (33.3%)
|
0.53
|
|
Revision (yes/no)
|
8/16 (33.3%)
|
3/21 (12.5%)
|
0.086
|
|
Post SVA (mm)
|
50.0 ± 46.5
|
48.3 ± 42.8
|
0.89
|
|
Post LL (°)
|
41.7 ± 10.2
|
41.9 ± 12.1
|
0.95
|
|
Final SVA (mm)
|
89.9 ± 62.2
|
65.6 ± 46.9
|
0.13
|
|
Final LL (°)
|
39.4 ± 12.1
|
38.3 ± 14.2
|
0.95
|
|
SVA correction loss (mm)
|
39.8 ± 48.7
|
17.3 ± 38.8
|
0.08
|
|
LL correction loss (°)
|
−3.3 ± 20.8
|
−3.5 ± 19.9
|
0.97
|
- 3CO Three-column osteotomy, BMD Bone mineral density, BMI Bone mass index, DJK Distal junction kyphosis, LL Lumbar lordosis, PD Parkinson’s disease, PJK Proximal junction kyphosis, SVA Sagittal vertical axis.
