Table 1.
Patient characteristics.
| ACDF | Study group N = 258 |
Total group N = 390 |
p-value |
|---|---|---|---|
| Females - no of patients (%) | 114 (44) | 178 (46) | 0.72prop |
| Median age (range) - (years) | 47.5 (28.3-82.8) | 47.7 (26.9- 82.8) | 0.73 |
| Levels per procedure - no of patients (%) | |||
| One level | 152 (59) | 240 (61) | 0.50 |
| Two levels | 104 (40) | 148 (38) | 0.55 |
| Three levels | 2 (1) | 2 (1) | 0.68 0.75χ2 |
| Level - no of patients (%) | |||
| C3/C4 | 7 (3) | 7 (2) | 0.43 |
| C4/C5 | 38 (15) | 56 (14) | 0.90 |
| C5/C6 | 182 (71) | 266 (68) | 0.53 |
| C6/C7 | 137 (53) | 207 (53) | 0.99 |
| C7/Th1 | 2 (1) | 6 (2) | 0.39 0.85χ2 |
| Method of fusion - no of patients (%) | |||
| Autologous bone graft | 181 (70) | 278 (71) | 0.76 |
| PEEK* cage | 77 (30) | 112 (29) | 0.76 0.76χ2 |
| Symptoms - no of patients (%) | |||
| Radiculopathy | 206 (80) | 309 (79) | 0.85 |
| Radiculopathy and myelopathy | 36 (14) | 50 (13) | 0.86 |
| Myelopathy | 9 (3) | 18 (5) | 0.48 |
| No radiculopathy or myelopathy | 7 (3) | 13 (3) | 0.66 |
| Previous ACDF - no of patients (%) | 11 (4) | 18 (5) | 0.83 |
| Previous neck trauma - no of patients (%) | 23 (9) | 26 (7) | 0.29 |
*Polyetheretherketone