Variables | Overall | Pulmonary complication | No pulmonary complication | P value |
---|---|---|---|---|
Number | 323 | 45 | 278 | |
Age, years | 17 (12–26) | 26 (19–26) | 15 (12–24) | < 0.001 |
Gender, female, no. (%) | 197 (61.0%) | 35 (77.8%) | 162 (58.3%) | 0.013 |
BMI, Kg/m2 | 18.4 (15.9–20.4) | 17.8 (16.2–20.4) | 18.4 (15.9–20.4) | 0.973 |
Duration since diagnosis of scoliosis, years | 11 (8–20) | 20 (13–24) | 10 (7–17) | < 0.001 |
Reoperation, no. (%) | 41 (12.7%) | 10 (22.2%) | 31 (11.2%) | 0.038 |
Preoperative pulmonary disease, no (%) | 14 (4.3%) | 9 (20.0%) | 5 (1.8%) | < 0.001 |
The main bending | 0.006 | |||
Thoracic scoliosis, no (%) | 239 (74.0%) | 42 (93.3%) | 197 (70.9%) | |
Thoracolumbar scoliosis, no (%) | 49 (15.2%) | 2 (4.4%) | 47 (16.9%) | |
Lumbar scoliosis, no (%) | 35 (10.8%) | 1 (2.2%) | 34 (12.2%) | |
Preoperative Cobb angle, degree | 80.2 (57.3–103) | 105.3 (88.3–122.3) | 75 (55.2–97.7) | < 0.001 |
Correction rate, % | 64 (57.7–71.3) | 67.4 (60.1–71.3) | 63.7 (57.4–71.2) | 0.078 |
Preoperative WBC, ×109/L | 5.9 (5.1–7.1) | 5.8 (5.0–6.9) | 5.9 (5.1–7.1) | 0.345 |
Preoperative neutrophil, % | 53.3 (45.4–61.2) | 55.4 (48.1–60.7) | 53.1 (45.4–61.3) | 0.540 |
ASA grade | 2 (1–2) | 2 (1–2) | 2 (1–2) | 0.886 |
Spinal osteotomy, no (%) | 167 (51.7%) | 26 (57.8%) | 141 (50.7%) | 0.379 |
No. of levels fused | 12 (9–14) | 13 (12–14) | 12 (8–14) | < 0.001 |
Upper thoracic screw-setting, no (%) | 208 (64.4%) | 40 (88.9%) | 168 (60.4%) | < 0.001 |
Middle thoracic screw-setting, no (%) | 232 (71.8%) | 44 (97.8%) | 188 (67.6%) | < 0.001 |
Lower thoracic screw-setting, no (%) | 248 (76.8%) | 41 (91.1%) | 207 (74.5%) | 0.014 |
Lumbar screw-setting, no (%) | 291 (90.1%) | 41 (91.1%) | 250 (89.9%) | 0.805 |
Thoracoplasty, no (%) | 114 (35.3%) | 33 (73.3%) | 81 (29.1%) | < 0.001 |
Operation time, min | 240 (180–300) | 285 (250–360) | 232.5 (180–295) | < 0.001 |
Volume of blood transfusion, ml | 400 (0–400) | 500 (0–800) | 0 (0–400) | < 0.001 |
Pulmonary function | ||||
FEV1/FVC, % | 85.4 (81.3–88.9) | 83.8 (80.5–88.1) | 85.5 (81.3–89.2) | 0.130 |
RV/TLC, % | 36.8 (29.9–41.8) | 38.8 (33.8–43.2) | 36.4 (29.6–41.6) | 0.038 |