Table 3.
Reasons for and Timing of Unplanned Readmissions.
| n (%) | Mean Time to Readmission, d | |
|---|---|---|
| Total unplanned readmissions | 116 (100.0) | 15.8 |
| Unplanned readmission related to surgical site | 49 (42.2) | 18.1 |
| Deep space surgical site/hardware infection | 15 (12.9) | 18.3 |
| Superficial surgical site infection | 13 (11.2) | 18.5 |
| Wound disruption/nonhealing | 8 (6.9) | 23.1 |
| Acute postoperative pain | 6 (5.2) | 2.5 |
| Fracture nonunion/malunion | 3 (2.6) | 20.7 |
| Other hardware complication | 3 (2.6) | 27.0 |
| Heel pressure ulcer | 1 (0.9) | 27.0 |
| Unplanned readmission unrelated to surgery | 60 (51.7) | 14.4 |
| Cardiac arrhythmia/disorder | 10 (8.6) | 13.0 |
| Pulmonary disorder/infection | 9 (7.8) | 17.7 |
| Neurological/psychiatric disorder | 8 (6.9) | 13.4 |
| Gastrointestinal disorder/infection | 7 (6.0) | 14.9 |
| Urinary tract infection | 7 (6.0) | 17.7 |
| Deep vein thrombosis requiring therapy | 6 (5.2) | 14.7 |
| Pulmonary embolism | 6 (5.2) | 10.8 |
| Other unrelated trauma | 3 (2.6) | 16.0 |
| Sepsis/septic shock/other infectious disorder | 2 (1.7) | 8.0 |
| Metabolic derangement | 2 (1.7) | 12.0 |
| Unknown | 7 (6.0) | — |