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Mode of osteosynthesis failure and outcome
| Mean | Revisions | ||
|---|---|---|---|
| Mode | n (%) | WOOS | n (%) |
| Avascular necrosis | 107 (38) | 46 | 9 (29) |
| Fracture displacement | 49 (17) | 45 | 6 (19) |
| Pseudarthrosis/non-union | 36 (13) | 49 | 7 (23) |
| Secondary arthrosis | 12 (4) | 46 | 2 (6) |
| Infection | 9 (3) | 32 | 3 (10) |
| Screw penetration | 9 (3) | 51 | 0 (0) |
| Pain | 8 (3) | 32 | 1 (3) |
| Rotator cuff tear | 6 (2) | 48 | 0 (0) |
| Implant failure | 6 (2) | 50 | 0 (0) |
| New fracture | 2 (1) | 41 | 0 (0) |
| Missing | 41 (14) | 47 | 3 (10) |
