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Malpositioning rate referenced to low and high volume surgeons
| Individual experience | Malposition rate (n) |
|---|---|
| High volume surgeons (N = 1) (> 100 screws) |
4/102 (3.9%)* |
| Low volume surgeons (N = 5) (< 20 screws each) |
9/45 (20%) |
| Malposition overall | 13/147 (8.8%) |
*p < 0.05 vs. low volume surgeons, ß = 0.7
