Table 7.
Results of interobserver assessment of fusion
| Type | Vavruch classification | Grade | Bridwell classification | ||||
|---|---|---|---|---|---|---|---|
| Observer 1 | Observer 2 | Observer 1 | Observer 2 | Observer 1 | Observer 2 | ||
| Cephalad (N = 28) | Caudal (n = 28) | Graft (n = 28) | |||||
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | ||
| 1A | 19 (67.9) | 13 (46.4) | 20 (71.4) | 14 (50) | I | 20 (71.4) | 12 (42.8) |
| 1B | 6 (21.4) | 10 (35.7) | 5 (17.9) | 9 (32.1) | II | 4 (14.2) | 5 (17.9) |
| 2A | 1 (3.6) | 3 (10.7) | 2 (7.1) | 4 (14.2) | III | 2 (7.1) | 9 (32.1) |
| 2B | 2 (7.1) | 2 (7.1) | 1 (3.6) | 1 (3.6) | IV | 2 (7.1) | 2 (7.1) |
| SD | 0.9 | 1.0 | |||||
| Range | 1–4 | 1–4 | |||||
Assessment of cephalad and caudal graft-endplate junctions (n = 56) according to Vavruch et al. and assessment of graft fusion according to Bridwell et al. (n = 28 levels)