Table 3 Fusion quality grade evaluation
Study group | Al2O3 (N = 68) | PEEK (N = 35) | ||||||
|---|---|---|---|---|---|---|---|---|
Grade | I | II | III | IV | I | II | III | IV |
FU (months) | n (%) | n (%) | ||||||
3 | 2 (2.9%) | 4 (5.9%) | 10 (14.7%) | 52 (76.5%) | 1 (2.9%) | 5 (14.3%) | 8 (22.8%) | 21 (60.0%) |
6 | 5 (7.4%) | 8 (11.8%) | 32 (47.0%) | 23 (33.8%) | 5 (14.3%) | 15 (42.9%) | 13 (37.1%) | 2 (5.7%) |
12 | 11 (16.2%) | 27 (39.7%) | 22 (32.4%) | 8 (11.8%) | 18 (51.4%) | 11 (31.4%) | 5 (14.3%) | 1(2.9%) |
18 | 26 (38.2%) | 24 (35.3%) | 13 (19.1%) | 5 (7.4%) | 27 (77.1%) | 3 (8.6%) | 5 (14.3%) | 0 (0.0%) |