| Procedure | 1 | Posterior Decompression Alone |
| 2 | Posterior Decompression and Fusion - No Instrumentation | |
| 3 | Fusion with Instrumentation +/- Decompression | |
| Approach | 1 | Posterior |
| 2 | Anterior/Posterior | |
| Interbody Spacer | 1 | Metallic Cage |
| 2 | Polyetheretherketone (PEEK) Cage | |
| 3 | Structural Allograft | |
| 4 | Bone morphogenetic protein | |
| 5 | Demineralized bone matrix | |
| 6 | Bone Marrow Aspirate | |
| 7 | Other | |
| Preferred Bone Graft | 1 | Iliac crest bone graft |
| 2 | Bone morphogenetic protein | |
| 3 | Local Autograft | |
| 4 | Cancellous Allograft | |
| 5 | Other | |
| Decompression | 1 | Laminotomy |
| 2 | Laminectomy | |
| 3 | Foramenotomy |
Surgical planning data collected from each surgeon for each of the seven cases.