Proportion of respondents for each scenario who chose uninstrumented surgery (no implants), autologous iliac crest bone graft (for fusion surgery), neuromonitoring, and hard collar or lumbosacral orthosis (LSO) for fusion surgery. (ICBG = iliac crest bone graft).
| Uninstrumented | ICBG | Neuromonitoring | Brace | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Case | Current | Bundled | p | Current | Bundled | p | Current | Bundled | p | Current | Bundled | p |
| 1 | 13% | 23% | 0.24 | 3% | 17% | 0.06 | 63% | 29% | 0.002 | 49% | 28% | 0.07 |
| 2 | 15% | 25% | 0.26 | 20% | 41% | 0.07 | 63% | 32% | 0.004 | 50% | 34% | 0.23 |
| 3 | 3% | 3% | 1.0 | 3% | 20% | 0.03 | 66% | 46% | 0.08 | 50% | 43% | 0.50 |
| 4 | 10% | 10% | 1.0 | 19% | 32% | 0.18 | 61% | 39% | 0.05 | 54% | 51% | 0.82 |
| 5 | 20% | 27% | 0.43 | 27% | 37% | 0.42 | 73% | 68% | 0.62 | 55% | 50% | 0.72 |
| 6 | 0% | 2% | 1.0 | 22% | 41% | 0.06 | 56% | 39% | 0.12 | 29% | 24% | 0.62 |
| 7 | 0% | 0% | 1.0 | 20% | 44% | 0.02 | 61% | 39% | 0.05 | 27% | 20% | 0.43 |
| 8 | 0% | 0% | 1.0 | 27% | 49% | 0.04 | 68% | 54% | 0.17 | 32% | 27% | 0.62 |