Table 2. Effect of surgical technique on fusion success.
| Anterior | Posterior | |||||||
|---|---|---|---|---|---|---|---|---|
| 95% CI | 95% CI | |||||||
| Study, first author and year | n | Fusion success | Lower | Upper | n | Fusion success | Lower | Upper |
| Brodsky, 199213 | 17 | 0.76 | 0.51 | 0.91 | 17 | 0.94 | 0.68 | 0.99 |
| Carreon, 200619 | 27 | 0.56 | 0.37 | 0.73 | 93 | 0.98 | 0.92 | 0.99 |
| Caspar, 199921 | 37 | 0.99 | 0.82 | 0.99 | – | – | – | – |
| Coric, 199718 | 19 | 0.96 | 0.70 | 0.99 | – | – | – | – |
| Farey, 199022 | – | – | – | – | 19 | 0.98 | 0.70 | 0.99 |
| Gore, 200334 | – | – | – | – | 25 | 0.98 | 0.76 | 0.99 |
| Kuhns, 200523 | – | – | – | – | 33 | 0.99 | 0.80 | 0.99 |
| Liu, 201224 | – | – | – | – | 38 | 0.99 | 0.83 | 0.99 |
| Lowery, 199520 | 20 | 0.45 | 0.25 | 0.66 | 17 | 0.94 | 0.68 | 0.99 |
| Mutoh, 199325 | 14 | 0.97 | 0.63 | 0.99 | – | – | – | – |
| Newman 199331 | 16 | 0.81 | 0.55 | 0.95 | – | – | – | – |
| Phillips, 199726 | 16 | 0.88 | 0.61 | 0.97 | 6 | 0.93 | 0.42 | 0.99 |
| Siambanes, 199827 | – | – | – | – | 14 | 0.97 | 0.63 | 0.99 |
| Toohey, 200630 | – | – | – | – | 18 | 0.97 | 0.69 | 0.99 |
| Tribus, 199928 | 16 | 0.81 | 0.55 | 0.94 | – | – | – | – |
| Zdeblick, 199729 | 35 | 0.97 | 0.82 | 0.99 | – | – | – | – |
| Total | 0.86 | 0.71 | 0.97 | 0.97 | 0.94 | 0.99 | ||
Abbreviation: CI, confidence interval.