Table 4 Radiologic outcomes
Radiologic characteristics (No, %) | Group 1 | Group 2 | P value | ||
|---|---|---|---|---|---|
Radiologic signs | Bony union | Lenke A | 179 (98.3 %) | 109 (96.4 %) | 0.35 |
Lenke B | 2 (1.0 %) | 2 (1.7 %) | |||
Lenke C | 1 (0.5 %) | 2 (1.7 %) | |||
Lenke D | 0 (0 %) | 0 (0 %) | |||
Halo sign | 22 (12.0 %) | 17 (15.0 %) | 0.383 | ||
Metal failure | Screw breakage | 3 (1.6 %) | 5 (4.4 %) | <0.001 | |
Dissociation | 0 (0 %) | 2 (1.7 %) | |||
Rod breakage | 0 (0 %) | 1 (0.8 %) | |||
Changes of adjacent segments | Disc space narrowing | 23 (12.6 %) | 27 (23.8 %) | <0.001 | |
Traction spur | 21 (11.2 %) | 25 (22.1 %) | |||
End plate sclerosis | 21 (11.2 %) | 22 (19.4 %) | |||
Vacuum phenomenon | 8 (3.9 %) | 9 (7.9 %) | |||
Total | 73 (40.1 %) | 83 (73.4 %) | |||