Complication rates.
| Complication | LOS <45 h (n = 52) | LOS ≥45 h (n = 52) | P Valuea |
| Urinary retention | 1.9% (1) | 15.7% (8) | 0.016 |
| Urinary tract infection | 0.0% (0) | 0.0% (0) | - |
| Acute respiratory failure | 0.0% (0) | 0.0% (0) | - |
| Acute renal failure | 0.0% (0) | 0.0% (0) | - |
| Ileus | 0.0% (0) | 0.0% (0) | - |
| Deep vein thrombosis | 0.0% (0) | 0.0% (0) | - |
| Transfusion | 0.0% (0) | 0.0% (0) | - |
| Arrhythmia | 0.0% (0) | 2.0% (1) | 0.496 |
| Pneumonia | 0.0% (0) | 0.0% (0) | - |
| Pneumothorax | 0.0% (0) | 0.0% (0) | - |
| Altered mental status | 0.0% (0) | 0.0% (0) | - |
| Durotomy | 0.0% (0) | 0.0% (0) | - |
| Surgical site infection | 0.0% (0) | 0.0% (0) | - |
| Neurological disease | 1.9% (1) | 1.9% (1) | - |
| Fever | 0.0% (0) | 15.7% (8) | 0.003 |
| Total complications | 3.9% (2) | 28.9% (15) | 0.001 |
Abbreviation: LOS, length of stay (h).
Note: Boldface indicates statistical significance.
↵a P value calculated using Fisher’s exact test.