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| Variables | Group I (ADR) | Group II (Hybrid) | p between groups | |
|---|---|---|---|---|
| Operation-related complications | ||||
| Dysphagia | 0 | 0 | ||
| Hoarseness | 0 | 1 | ||
| Subsidence or dislodgement | 0 | 0 | ||
| Heterotopic ossification | 14 | 23 | ||
| Total | 14 (64%) | 24 (70%) | >0.05 | |
| Radiographic changes at adjacent segments | ||||
| New osteophyte formation | 3 | 6 | ||
| Osteophyte enlargement | 2 | 3 | ||
| Disc space narrowing | 0 | 1 | ||
| Total | 5 (23%) | 10 (29%) | >0.05 | |
ADR: artificial disc replacement.
