Group | ISH change< 2 mm | ISH change 2-4 mm | ISH change > 4 mm |
---|---|---|---|
Adjacent-level degeneration | |||
Superior | 28.57% (12) | 13.24% (9)a, c | 21.43% (6) |
Inferior | 30.95% (13) | 16.18% (11)a, c | 28.57% (8) |
Axial symptoms | 26.19% (11) | 11.76% (8)a | 17.85% (5) |
Dysphagia | 5.4% (2) | 4.41% (3) | 5.26% (1) |
Local kyphosis | 9.52% (4) | 13.24% (9) | 14.29% (4) |
Implant subsidence | 7.14% (3) | 4.41% (3)b | 14.29% (4) |
Facet joint degeneration [11] | 3 points | 2 points | 2 points |