Fusion grade.
| BMA (n = 80) | |
|---|---|
| Overall fusion | |
| Both Grade A and BSF 3 | 65 (81.3%) |
| Posterolateral fusion | |
| Grade A (%) | 65 (81.3%) |
| Grade B (%) | 5 (6.3%) |
| Grade C (%) | 9 (11.3%) |
| Grade D (%) | 1 (1.3%) |
| Interbody fusion | |
| BSF-1 (%) | 3 (3.8%) |
| BSF-2 (%) | 3 (3.8%) |
| BSF-3 (%) | 74 (92.5%) |