Postoperative complications among study population.
| Complication | Metabolic | Nonmetabolic | P Value |
| Bowel | 9.7% | 6.8% | <0.001 |
| Bladder | 1.3% | 0.9% | <0.001 |
| Neurologic | 2.3% | 1.4% | <0.001 |
| Dysphagia | 0.1% | 0.1% | 0.34 |
| Cardiac | 0.6% | 0.4% | <0.001 |
| Respiratory | 0.6% | 0.4% | <0.001 |
| Digestive | 0.3% | 0.3% | 0.98 |
| Device | 3.5% | 2.9% | <0.001 |
| Hematoma | 1.1% | 0.7% | <0.001 |
| Anemia | 9.8% | 5.9% | < 0.001 |
| Infection | 0.9% | 0.5% | <0.001 |
| Deep vein thrombosis | 0.6% | 0.4% | <0.001 |
| Total | 28.8% | 19.7% | <0.001 |
| Revision surgery | 4.5% | 5.9% | <0.001 |