TABLE 2.
Prior History of Surgical Management in Successful vs Failed Nonoperative Patients
| Parameter | Nonoperative success vs failure group | Mean | SD | Significance |
|---|---|---|---|---|
| Prior spine surgery (unspecified) (%) | Failure | 0.35 | 0.48 | P = .035 |
| Success | 0.2 | 0.404 | ||
| Prior decompression (%) | Failure | 0.65 | 0.493 | P = .048 |
| Success | 0.34 | 0.484 | ||
| Prior fusion (%) | Failure | 0.67 | 0.482 | P = .610 |
| Success | 0.6 | 0.497 | ||
| Prior UIV | Failure | 12.93 | 7.043 | P = .328 |
| Success | 15.12 | 5.195 | ||
| Prior LIV | Failure | 20.64 | 7.034 | P = .163 |
| Success | 23.47 | 1.7 | ||
| History of revision (unspecified) (%) | Failure | 0.3 | 0.483 | P = .398 |
| Success | 0.14 | 0.363 |
BL, baseline; LIV, lower instrumented vertebra; SVA, sagittal vertical axis; UIV, upper instrumented vertebra.