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| SLVSF(n = 16) | Control(n = 38) | p value | |
| Age(mean±SD) | 48.5±4.9 | 57.2±6.4 | <0.001 |
| Gender n(%) | |||
| Male | 5(31.2%) | 21(55.3%) | |
| Female | 11(68.8%) | 17(44.7%) | |
| Type | |||
| I | 5 | ||
| II | 11 | ||
| Follow-up(months) | 17.4±3.9 | 20.3±4.5 | 0.80 |
SLVSF: single-level vertebral spontaneous fusion.
