Prevalence of spondylolisthesis at the intervertebral levels with facet fluid width over and under the cutoff valuea
| Facet Fluid Width | ||
|---|---|---|
| Over the Cutoff Value (n = 41) | Under the Cutoff Value (n = 52) | |
| With spondylolisthesis | 30 (73%) | 16 (31%) |
| Without spondylolisthesis | 11 (27%) | 36 (69%) |
↵a Values are the number of intervertebral levels and percentages. There is a significant difference (χ2 test, P < .001).