| Study | N | Fusion Rate | Follow-up | Notes |
|---|---|---|---|---|
| Current study | 19 18 |
79% 94% |
12 months 24 months |
CT imaging; independently assessed and adjudicated for bridging bone. Threaded implant fixation with decortication and graft placement. |
| Kube et al [17] | 20 | 88% | 12 months | Thin slice (<2mm) CT imaging assessment of bony bridging across the SIJ and absence of lucency. Threaded implant fixation with decortication and graft placement. |
| Duhon et al [12] | 159 | 25% | 12 months | CT imaging assessment of bridging bone either adjacent or distant to triangular titanium implants. |
| Rudolf et al [14] | 15 | 87% | 5 years | CT imaging assessment of evidence of osseous bridging across the SIJ. Triangular titanium implants. |
| Treon et al [18] | 37 | 51% | 13 months | CT assessment of fusion status after distraction interference arthrodesis neurovascular anticipating (DIANA) posterior MI SIJ fusion. |
| Gaetani et al [13] | 12 | 100% (“initial fusion”) |
3 months | CT imaging demonstrated “initial fusion” at 3 months with triangular titanium implants. |
| Schroeder et al [27] | 6 | 67% | 4-15 months | Successful fusion defined as bridging bone across the SIJ in an axial or coronal CT scan or on two x-ray views. Triangular titanium implants. |