Table 3.
Prevalence of varying fracture levels with most common surgical procedures.a
|
2003, n (%) |
2006, n (%) |
2009, n (%) |
2012, n (%) |
Total, n (%) |
P
Value |
Most Common Surgical Approaches (%) |
|
| Closed fracture | |||||||
| Unspecified | 19 (0.8) | 28 (0.9) | 25 (0.8) | 37 (1.4) | 109 (1.0) | .109 | Halo insertion (8.3) |
| Complex posterior (1.8) | |||||||
| Simple anterior (0.9) | |||||||
| C1 | 299 (12.3) | 370 (12.1) | 367 (12.3) | 315 (11.7) | 1351 (12.1) | .893 | Halo insertion (14.8) |
| Simple anterior (3.5); complex posterior (1.1) | |||||||
| C2 | 572 (23.4) | 658 (21.5) | 598 (20.0) | 496 (18.4) | 2324 (20.8) | <.001b | Halo insertion (25.0) |
| Simple anterior (4.2) | |||||||
| Complex posterior (0.9) | |||||||
| C3 | 111 (4.5) | 168 (5.5) | 163 (5.4) | 121 (4.5) | 563 (5.0) | .149 | Halo insertion (13.0) |
| Simple anterior (7.6) | |||||||
| Decompression only (2.1) | |||||||
| C4 | 180 (7.4) | 246 (8.0) | 210 (7.0) | 192 (7.1) | 828 (7.4) | .424 | Halo insertion (12.7) |
| Simple anterior (11.4) | |||||||
| Decompression only (3.4) | |||||||
| C5 | 337 (13.8) | 425 (13.9) | 395 (13.2) | 372 (13.8) | 1529 (13.7) | .862 | Simple anterior (14.1) |
| Halo insertion (9.5) | |||||||
| Decompression only (2.8) | |||||||
| C6 | 322 (13.2) | 477 (15.6) | 471 (15.7) | 493 (18.2) | 1763 (15.7) | <.001b | Simple anterior (13.4) |
| Halo insertion (7.3) | |||||||
| Decompression only (3.2) | |||||||
| C7 | 486 (19.9) | 697 (22.8) | 810 (27.1) | 709 (26.2) | 2702 (24.1) | <.001b | Simple anterior (6.6) |
| Halo insertion (4.1) | |||||||
| Decompression only (1.6) | |||||||
| Multiple | 78 (3.2) | 113 (3.7) | 91 (3.0) | 91 (3.4) | 373 (3.3) | .538 | Halo insertion (15.3) |
| Simple anterior (8.3) | |||||||
| Complex posterior (3.2) | |||||||
| Open fracture | |||||||
| Unspecified | 1 (0.0) | 1 (0.0) | 3 (0.1) | 1 (0.0) | 6 (0.1) | .642 | — |
| — | |||||||
| — | |||||||
| C1 | 10 (0.4) | 17 (0.6) | 11 (0.4) | 15 (0.6) | 53 (0.5) | .628 | Halo insertion (3.8) |
| Decompression only (1.90) | |||||||
| — | |||||||
| C2 | 5 (0.2) | 13 (0.4) | 6 (0.2) | 7 (0.3) | 31 (0.3) | .315 | Halo insertion (3.2) |
| — | |||||||
| — | |||||||
| C3 | 3 (0.1) | 5 (0.2) | 4 (0.1) | 5 (0.2) | 17 (0.2) | .935 | Anterior fusion (5.9) |
| — | |||||||
| — | |||||||
| C4 | 5 (0.2) | 4 (0.1) | 5 (0.2) | 2 (0.1) | 16 (0.1) | .635 | Simple fusion (6.3) |
| Halo insertion (6.3) | |||||||
| — | |||||||
| C5 | 1 (0) | 6 (0.2) | 5 (0.2) | 5 (0.2) | 17 (0.2) | .455 | Halo insertion (5.9) |
| — | |||||||
| — | |||||||
| C6 | 5 (0.2) | 8 (0.3) | 3 (0.1) | 8 (0.3) | 24 (0.2) | .393 | Anterior fusion (4.2) |
| Decompression only (4.2) | |||||||
| Halo insertion (4.2) | |||||||
| C7 | 4 (0.2) | 10 (0.3) | 8 (0.3) | 9 (0.3) | 31 (0.3) | .632 | Complex posterior (6.5) |
| Decompression only (3.2) | |||||||
| Anterior fusion (3.2) | |||||||
| Multiple | 3 (0.1) | 1 (0) | 5 (0.2) | 2 (0.1) | 11 (0.1) | .377 | Decompression only (9.1) |
| — | |||||||
| — | |||||||
a
Percentages indicate prevalence of patients per year; — indicates no fusion data available for the specified level.
b
Significance of P < .05.