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Table 2 Postoperative complications in the two study groups

From: Sagittal alignment changes and postoperative complications following surgery for adult spinal deformity in patients with Parkinson’s disease: a multi-institutional retrospective cohort study

  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
  1. DJK Distal junction kyphosis, DVT Deep vein thrombosis, PD Parkinson’s disease, PE Pulmonary embolism, PJK Proximal junction kyphosis.