Table 2 Operative details and complications between the P-A and A-P groups
Variable | P-A group | A-P group | p-value |
|---|---|---|---|
Number of patients | 178 | 82 | Â |
Number of levels fused | 7.6 ± 0.7 | 7.5 ± 0.3 | 0.535 |
Number of levels decompressed | 3.2 ± 1.9 | 3.5 ± 1.3 | 0.196 |
Number of LLIF | 3.5 ± 0.4 | 3.4 ± 0.5 | 0.142 |
LLIF level, n (%) | |||
 L1/2 | 6 (3.4) | 5 (6.1) | 0.494 |
 L2/3 | 150 (84.3) | 75 (91.5) | 0.114 |
 L3/4 | 162 (91.0) | 78 (95.1) | 0.166 |
 L4/5 | 169 (94.9) | 79 (96.3) | 0.856 |
UIV, n (%) | Â | Â | 0.725 |
 T9-T10 | 142 (79.8) | 63 (76.8) |  |
 T11-T12 | 20 (11.2) | 9 (11.0) |  |
 L1-L2 | 16 (9.0) | 10 (12.2) |  |
Interbody fusion at L5/S1, n (%) | Â | Â | 0.418 |
 PLIF | 141 (79.2) | 58 (70.7) |  |
 TLIF | 22 (12.4) | 12 (14.6) |  |
 None | 10 (5.6) | 8 (9.8) |  |
 Previous fusion | 5 (2.8) | 4 (4.9) |  |
Sacropelvic fixation, n (%) | 123 (69.1) | 56 (68.3) | 0.896 |
Operation time, (min) | 347.2 ± 53.1 | 330.4 ± 48.7 | 0.016 |
EBL, (L) | 2.3 ± 1.1 | 2.0 ± 0.8 | 0.028 |
Length of hospital stay, (day) | 30.7 ± 7.2 | 29.2 ± 7.3 | 0.121 |
Number of ICU stay, n (%) | 7 (3.9) | 2 (4.9) | 0.805 |
Complication, n (%) | |||
 PJK | 11 (6.2) | 8 (9.8) | 0.303 |
 Pseudarthrosis | 5 (2.8) | 4 (4.9) | 0.629 |
 Cage subsidence | 17 (9.6) | 21 (25.6) | 0.001 |
 Neurologic deficit | 6 (3.4) | 6 (7.3) | 0.275 |
 Dural tear | 12 (6.7) | 6 (7.3) | 0.865 |
 Deep vein thrombosis | 2 (1.7) | 2 (2.4) | 0.796 |
 Pneumonia | 5 (2.8) | 1 (2.4) | 0.727 |
 Surgical site infection | 4 (2.2) | 1 (2.4) | 0.940 |