| Motivations/ Suspicion of lumbar osteo arthritis | No response | Efficient | Essential | Available | Costless | Other |
| No Response | 0 | 0 | 0 | 0 | 0 | 1 |
| X-ray | 6 | 85 | 41 | 65 | 38 | 2 |
| CT scan | 2 | 45 | 27 | 22 | 4 | 1 |
| Myelography | 1 | 1 | 0 | 0 | 0 | 0 |
| Scintigraphy | 0 | 1 | 1 | 0 | 0 | 0 |
| MRI | 1 | 11 | 7 | 4 | 0 | 0 |
| SRG | 1 | 1 | 0 | 1 | 1 | 0 |