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Comparison of the number of patients with postoperative complications between the two groups.
| Groups | n | Inflammatory response | Iatrogenic neurological symptoms | Ectopic ossification | Traumatic arthritis |
|---|---|---|---|---|---|
| 3D model group | 48 | 1 | 1 | 1 | 2 |
| Routine operation group | 48 | 6 | 5 | 3 | 4 |
| χ2 test | 9.66 | ||||
| P-value | 0.002 |
