Table 4.
Summary of Indications for Revision in the 6 Studies.
| Indication | LLIF+PSF group | Only-PSF group |
|---|---|---|
| n (%) | n (%) | |
| Mechanical complications | ||
| PJK/PJF | 6 (24.0%) | 12 (26.7%) |
| Implant failure | 4 (16.0%) | 4 (8.9%) |
| Pseudoarthrosis | 2 (8.0%) | 15 (33.3%) |
| Subtotal | 12 (48.0%) | 31 (68.9%) |
| Surgical complications | ||
| Neurological dificits | 4 (16.0%) | 4 (8.9%) |
| Surgical site infection | 8 (32.0%) | 10 (22.2%) |
| Screw reinsertion | 1 (4.0%) | 0 (.0%) |
| Subtotal | 13 (52.0%) | 14 (31.1%) |
| Total | 25 (100.0%) | 45 (100.0%) |
| Revision rate | 11.9% | 20.7% |
PJK indicates proximal junctional kyphosis; PJF, proximal junctional failure; LLIF, lateral lumbar interbody fusion; PSF, posterior spinal fusion.