Table 2 Postoperative complications in the two study groups
PD+ group | PD− group | p-value | |
|---|---|---|---|
Cases, n | 27 | 206 | – |
Operating time (min) | 490 ± 154 | 454 ± 113 | 0.14 |
Blood loss (g) | 2069 ± 1336 | 1984 ± 1422 | 0.28 |
Early complications | |||
Neurological (yes/no) | 3/24 (11.1%) | 23/183 (11.2%) | 0.96 |
Implant failure (yes/no) | 2/25 (7.4%) | 20/186 (9.7%) | 0.74 |
DVT (yes/no) | 4/23 (14.8%) | 14/192 (6.8%) | 0.12 |
PE (yes/no) | 1/26 (3.7%) | 1/205 (0.5%) | 0.081 |
Cerebrovascular disorder (yes/no) | 0/27 (0%) | 2/204 (1.0%) | 0.61 |
Respiratory disorder (yes/no) | 1/26 (3.7%) | 7/199 (3.4%) | 0.91 |
Cardiovascular disorder (yes/no) | 0/27 (0%) | 6/200 (2.9%) | 0.38 |
Delirium (yes/no) | 7/20 (25.9%) | 15/191 (7.3%) | 0.001 |
Surgical site infection (yes/no) | 1/26 (3.7%) | 6/200 (2.9%) | 0.79 |
Spinal epidural hematoma (yes/no) | 0/27 (0%) | 14/192 (6.8%) | 0.17 |
Late complications | |||
Mechanical complication (yes/no) | 15/12 (55.6%) | 99/107 (48.1%) | 0.59 |
Rod failure (yes/no) | 7/20 (25.9%) | 27/179 (13.1%) | 0.17 |
Non-union | 10/17 (37.0%) | 34/172 (16.5%) | 0.017 |
PJK (yes/no) | 8/19 (29.6%) | 55/151 (26.7%) | 0.82 |
DJK (yes/no) | 3/24 (11.1%) | 15/191 (7.3%) | 0.95 |
Vertebral fracture (yes/no) | 7/20 (25.9%) | 43/163 (20.9%) | 0.81 |
Revision (yes/no) | 9/18 (33.3%) | 37/169 (18.0%) | 0.13 |