| |
Non-revision group (n = 47)
|
Revision group (n = 19)
|
P value
|
|---|
|
Patient-related factors
|
|
Age
|
70.43 ± 7.39
|
66.74 ± 6.28
|
0.060
|
|
Gender (M/F)
|
17/30
|
5/14
|
0.442
|
|
DM
|
11 (23.4)
|
5 (26.3)
|
0.803
|
|
HTN
|
29 (61.7)
|
10 (52.6)
|
0.497
|
|
CKD
|
0 (0)
|
1 (5.3)
|
0.113
|
|
IHD
|
7 (14.9)
|
1 (5.3)
|
0.278
|
|
Cancer
|
0 (0)
|
2 (10.5)
|
0.024*
|
|
Osteoporosis
|
10 (21.3)
|
10 (52.6)
|
0.012*
|
|
Modified H&Y stage
| | |
< 0.001*
|
|
1
|
11
|
0
| |
|
1.5
|
10
|
1
| |
|
2
|
11
|
1
| |
|
2.5
|
5
|
1
| |
|
3
|
8
|
12
| |
|
4
|
2
|
4
| |
|
Surgery-related factors
|
|
Blood loss (cc)
|
1072.55 ± 1094.20
|
989.47 ± 836.26
|
0.767
|
|
Surgical levels
| | |
0.094
|
|
≤ 3
|
28 (59.6)
|
7 (36.8)
| |
|
> 3
|
19 (40.4)
|
12 (63.2)
| |
|
T-spine instrumentation
|
2 (4.3)
|
3 (15.8)
|
0.109
|
|
Interbody fusion
|
29 (61.7)
|
8 (42.1)
|
0.146
|
|
Corrective osteotomy
|
1 (2.1)
|
3 (15.8)
|
0.035*
|
|
Combined anterior approach
|
2 (4.3)
|
1 (5.3)
|
0.859
|
|
Radiographic parameters
|
|
Pre OP-
|
|
LL
|
37.20 ± 17.29
|
42.75 ± 14.15
|
0.220
|
|
SS
|
29.39 ± 9.44
|
32.67 ± 5.92
|
0.165
|
|
PT
|
22.09 ± 10.40
|
22.81 ± 9.31
|
0.794
|
|
PI
|
51.67 ± 10.40
|
55.48 ± 10.08
|
0.179
|
|
Post OP
|
|
LL
|
36.39 ± 14.08
|
38.74 ± 10.23
|
0.512
|
|
SS
|
29.89 ± 9.21
|
30.17 ± 6.61
|
0.905
|
|
PT
|
21.31 ± 9.13
|
21.81 ± 8.21
|
0.836
|
|
PI
|
51.2 0 ± 9.31
|
51.98 ± 8.48
|
0.753
|
|
LL = PI ±9
|
20 (42.6)
|
4 (21.1)
|
0.100
|
|
PT < 20
|
20 (42.6)
|
5 (26.3)
|
0.218
|
|
Spino-pelvic realignment achievement
|
|
0
|
20 (42.6)
|
12 (63.2)
|
0.224
|
|
1
|
14 (29.8)
|
5 (26.3)
| |
|
2
|
13 (27.7)
|
2 (10.5)
| |
- DM Diabetes mellitus, HTN Hypertension, CKD Chronic kidney disease, IHD Ischemic heart disease, modified H&Y stage modified Hoehn and Yahr stage, T-spine Thoracic spine, LL Lumbar lordosis, SS Sacral slope, PT Pelvic tilt, PI Pelvic incidence
