Table 5.
Comparison of complications between primary and recurrent cases
| Primary (n = 86) | Recurrent (n = 17) | P-value | |
|---|---|---|---|
| Age (years), mean (SD) | 35.3 (13.6) | 38.6 (18.6) | 0.382 |
| Events per patient, mean (SD) | 1.37 (1.29) | 2.53 (1.66) | 0.011* |
| Resected vertebral segments, median (IQR) | 1 (2) | 2 (1) | 0.011* |
| Surgical duration (min), mean (SD) | 504 (197) | 649 (219) | 0.015* |
| Estimated blood loss (ml), mean (SD) | 1975 (1363) | 2216 (1408) | 0.518 |
| Hospital stay (days), mean (SD) | 20.9 (13.3) | 25.5 (11.5) | 0.191 |
| Large vascular injury, n (%) | 6 (7.0%) | 1 (5.9%) | > 0.999 |
| Dural tear, n (%) | 10 (11.6%) | 8 (47.1%) | 0.002* |
| Neurological deterioration, n (%) | 17 (19.8%) | 6 (35.3%) | 0.277 |
| Cerebrospinal fluid leakage, n (%) | 13 (15.1%) | 5 (29.4%) | 0.285 |
| Respiratory complications, n (%) | 10 (11.6%) | 4 (23.5%) | 0.357 |
| Chest complications, n (%) | 22 (25.6%) | 8 (47.1%) | 0.137 |
| Wound healing problems, n (%) | 4 (4.7%) | 1 (5.9%) | > 0.999 |
SD stands for standard deviation, IQR interquartile range
Comparison was conducted utilizing unpaired student t test, Mann–Whitney U test, Chi-squared test or Fisher’s exact test accordingly
*Significantly different at P < 0.05