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Demographic data of patients
| Characteristic | Total (n = 19) |
|---|---|
| Sex | |
| M | 9 |
| F | 10 |
| Age | 52.9 (28~68) |
| Radiculopathy | 13 |
| Myelopathy | 2 |
| Radiculomyelopathy | 4 |
| Level | |
| C3–4 | 1 |
| C4–5 | 5 |
| C5–6 | 11 |
| C6–7 | 8 |
| OP time (min) | 177.1 (67~251) |
| Hospital stay (day) | 3.8 (2~7) |
| Blood loss (c.c.) | <50 |
