Table 1. Demographic data and fusion rates.
| Non-fixed Antelys cage and posterior instrumentation (no posterolateral fusion) | STALIF cage and posterior instrumentation (no posterolateral fusion) | STALIF cage alone | Synfix cage alone | |
|---|---|---|---|---|
| Number of patients | ||||
| Degenerative disk disease | 14 | 1 | 37 | 3 |
| Lytic spondylolisthesis | 0 | 15 | 0 | 0 |
| Previous posterior surgery | 3 | 0 | 8 | 3 |
| Number of levels | 23 | 22 | 52 | 4 |
| Age, y (standard deviation) | 43.6 (12.9) | 45 (11) | 42.3 (8.2) | 34 (2) |
| Sex (M:F) | 6:8 | 10:6 | 15:22 | 2:1 |
| Number of smokers | 2 | 0 | 4 | 1 |
| Graft material | ||||
| Autograft | 4 | 8 | 31 | 1 |
| Allograft | 9 | 8 | 5 | 2 |
| Both | 0 | 0 | 1 | 0 |
| Synthetic | 1 | 0 | 0 | 0 |
| Number of patients fused (%) | 14 (100) | 16 (100) | 23 (62) | 3 (100) |
| Number of levels fused (%) | 23 (100) | 22 (100) | 34 (65) | 4 (100) |
| Time to imaging, mo (standard deviation) | 16.1 (10.3) | 15 (6.9) | 21.3 (11.1) | 18.3 (14.5) |