A contiguous series of 115 patients with a minimum of one year follow-up were selected from nine US clinical sites and reviewed by independent radiologists to assess fusion and device related events.
Summary of Device-Related Events2
| Outcome | N | N with outcome | Percent with outcome |
| Fusion Rate | 114 | 108 | 94.7% |
| Broken Screws | 111 | 0 | 0% |
| Broken Device | 110 | 0 | 0% |
| Loose Screws | 110 | 3 | 2.7% |
| Loose Device | 106 | 0 | 0% |
| Screw Dislodgement | 110 | 0 | 0% |
| Migration of Device | 107 | 1 | 0.9% |
| Disc Height Loss >2mm | 83 | 2 | 2.4% |
| Pseudoarthrosis | 108 | 0 | 0% |
2 R. Bosita, MD, R. Banco, MD, S. Blumenthal, MD, R. Buckley, MD, A. Cappuccino, MD, J. Demakas, MD, M. Garden, MD, F. Geisler, MD, L. Jenis, MD, D. Laich, DO, R. Lazar, MD, S. Puccio, DO, J. Thalgott, MD, S. Tromanhauser, MD. Performance & Safety of the STALIF TT™ Device.