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Mechanical complications.
| Complication Type | n | % |
|---|---|---|
| Proximal junctional kyphosis | 5 | 33.3 |
| Proximal junctional failure | 4 | 26.7 |
| Distal junctional failure | 2 | 13.3 |
| Rod breakage | 3 | 20 |
| Screws loosening | 1 | 6.7 |
| Early (<6 months) | 5 | 33.3 |
| Delayed (>6 months) | 10 | 66.7 |
| Revision | 8 | 53.3 |
