Table. Interobserver reliabilitya among the observers.
| Radiological Parameters | Agreement Between Observers | ICC |
| Interlaminar angle | ||
| L4-L5 | 60% | 0.98 |
| L5-S1 | 62.5% | 0.99 |
| Tube angle | ||
| L4-L5 | 62.5% | 0.97 |
| L5-S1 | 57.5% | 0.94 |
| Laminar thickness ratio | 65% | 0.97 |
| Laminar length ratio | 62.5% | 0.96 |
aInter-observer correlation was estimated using the interclass coefficient (ICC).