Table 4.
Rates of varying surgical procedures from 2003 to 2012.a
|
Procedure |
2003, n (%) |
2006, n (%) |
2009, n (%) |
2012, n (%) |
Total, n (%) |
P
Value |
| Any fusion | 124 (5.1) | 570 (18.6) | 615 (20.5) | 566 (20.9) | 1875 (16.7) | <.001b |
| Simple fusion | 56 (2.3) | 462 (15.1) | 487 (16.3) | 437 (16.2) | 1442 (12.9) | <.001b |
| Posterior | 3 (0.1) | 11 (0.4) | 16 (0.5) | 15 (0.6) | 45 (0.4) | .051 |
| Anterior | 40 (1.6) | 343 (11.2) | 351 (11.7) | 321 (11.9) | 1055 (9.4) | <.001b |
| Complex fusion | 33 (1.4) | 91 (3.0) | 122 (4.1) | 126 (4.7) | 372 (3.3) | <.001b |
| Posterior | 6 (0.2) | 29 (0.9) | 45 (1.5) | 37 (1.4) | 117 (1.0) | <.001b |
| Anterior | 13 (0.5) | 31 (1.0) | 40 (1.3) | 40 (1.5) | 124 (1.1) | .006b |
| Combined | 9 (0.4) | 13 (0.4) | 13 (0.4) | 17 (0.6) | 52 (0.5) | .526 |
| Decompression only | 237 (9.7) | 50 (1.6) | 33 (1.1) | 31 (1.1) | 351 (3.1) | <.001b |
| Insertion of halo traction device | 430 (17.6) | 411 (13.4) | 310 (10.4) | 232 (8.6) | 1383 (12.4) | <.001b |
a
Percentages indicate prevalence of patients per year.
b
Significance of P < .05.