L4/5 | L5S1 | |||||||
---|---|---|---|---|---|---|---|---|
DHI decrease ≥ 10% (n) | DHI decrease < 10% (n) | F value | p value | DHI decrease ≥ 10% (n) | DHI decrease < 10% (n) | F value | p value | |
Facet grade pre-operation | 0.000 | 1.000 | 4.934 | 0.026* | ||||
Degeneration | 8 | 32 | 9 | 34 | ||||
No degeneration | 3 | 11 | 6 | 5 | ||||
Disc grade pre-operation | 0.002* | 0.964 | 0.006 | 0.937 | ||||
Degeneration | 8 | 34 | 12 | 29 | ||||
No degeneration | 3 | 9 | 3 | 10 |