Table 4.
Comparison of complications.
| Parametes | Long-group | Short-group |
|---|---|---|
| System diseases | 3 | 1 |
| Cerebrospinal fluid leakage | 4 | 2 |
| Infection | 1 | 0 |
| Proximal junctional problems | 2 | 5 |
| Pseudoarthrosis | 4 | 2 |
| Distal junctional kyphosis | 1 | 0 |
| Revision surgery | 5 | 5 |
| Prevalence of complications | 15/45 | 10/51 |
| Prevalence of revision | 5/45 | 5/51 |
Suffering from a serious systemic disease that requires re-admission in 1 month after operation, such as heart failure, pneumonia and urinary tract infection. Proximal junctional problem such as global sagittal imbalance, proximal junctional kyphosis (PJK), and fracture at the uppermost instrumented vertebra (UIV)