Summary of readmissions and reoperations.
| Outcome Measure | All | Short Fusion | Long Fusion | P |
| Readmission, n (%) | ||||
| Yes | 36 (33.3) | 19 (27.9) | 17 (42.5) | 0.12 |
| No | 72 (66.7) | 49 (72.1) | 23 (57.5) | |
| Time to readmission | ||||
| Days | ||||
| Mean (SD) | 600.1 (531.4) | 683.6 (651.3) | 406.1 (316.2) | 0.12 |
| Range | 2–1755 | 2–1755 | 9–1029 | N/A |
| Years | ||||
| Mean (SD) | 1.64 (1.46) | 1.87 (1.78) | 1.11 (0.87) | 0.12 |
| Range | 0.01–4.81 | 0.01–4.81 | 0.02–2.82 | N/A |
| Reoperation, n (%) | ||||
| Yes | 33 (30.6) | 18 (26.5) | 15 (37.5) | 0.23 |
| No | 75 (69.4) | 50 (73.5) | 25 (62.5) | |
| Time to reoperation | ||||
| Days | ||||
| Mean (SD) | 570.9 (532.1) | 665.6 (661.1) | 457.3 (301.7) | 0.162 |
| Range | 2–1755 | 2–1755 | 51–1029 | N/A |
| Years | ||||
| Mean (SD) | 1.56 (1.46) | 1.82 (1.81) | 1.25 (0.83) | 0.162 |
| Range | 0.01–4.81 | 0.01–4.81 | 0.14–2.82 | N/A |
| Reason for Reoperation, n (%), % of all reoperations | ||||
| Adjacent segment degeneration | 9 (8.3), 27.3 | 7 (10.3), 38.9 | 2 (5.0), 13.3 | 0.48 |
| Proximal junctional kyphosis/proximal junctional failure/proximal junctional fracture | 4 (3.78), 12.1 | 0 (0.0), 0.0 | 4 (10.0), 26.7 | 0.017 |
| Painful iliac bolts | 5 (4.6), 15.2 | 3 (4.4), 16.7 | 2 (5.0), 13.3 | 1.0 |
| Wound complication | 6 (5.6), 18.2 | 2 (2.9), 11.1 | 4 (10.0), 26.7 | 0.191 |
| Acute implant problem | 3 (2.8), 9.1 | 3 (4.4), 16.7 | 0 (0.0), 0.0 | 0.294 |
| Fracture/spinopelvic dissociation | 2 (1.9), 6.1 | 0 (0.0), 0.0 | 2 (5.0), 13.3 | 0.135 |
| Recurrent stenosis/radiculopathy | 4 (3.7), 12.1 | 3 (4.4), 16.7 | 1 (2.5), 6.7 | 1.0 |
| Nonunion/rod failure | 2 (1.9), 6.1 | 0 (0.0), 0.0 | 2 (5.0), 13.3 | 0.135 |
| Sacroiliac joint dysfunction | 2 (1.9), 6.1 | 2 (2.9), 11.1 | 0 (0.0), 0.0 | 0.529 |
| Device migration | 1 (0.9), 3.0 | 1 (1.5), 5.6 | 0 (0.0), 0.0 | 1.0 |
| Device subsidence | 1 (0.9), 3.0 | 1 (1.5), 5.6 | 0 (0.0), 0.0 | 1.0 |
Abbreviation: N/A, not applicable.