Presence of bridging bone intra-cage (N = 45 levels).
| 6 months* | 12 months | 24 months | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Auto | P-15 | P-value** | Auto | P-15 | P-value** | Auto | P-15 | P-value** | |
| Anterior | 34.09 % | 70.45% | < .01 | 57.78% | 88.89% | < .01 | 71.11% | 88.89% | n.s. |
| Mid | 43.18 % | 86.36% | < .01 | 73.33% | 95.56% | < .01 | 80.00% | 93.33% | n.s. |
| Posterior | 45.45% | 68.18% | n.s. | 73.33% | 82.22% | n.s. | 84.44% | 86.67% | n.s. |
| Any | 59.09% | 97.73% | < .01 | 82.22% | 97.78% | < .01 | 93.33% | 95.56% | n.s. |
| Any sign rank test | 1.23±1.20 | 2.25±.78 | < .01 | 2.04±1.14 | 2.67±.60 | < .01 | |||