| Group A | Group B | Group C | P value |
---|
ΔSH1 (mm) | 0.232±0.588 | 0.107±0.789 | 0.398±1.033 | 0.560 |
ΔSH2 (mm) | 0.261±0.894 | 0.208±0.850 | 0.322±1.011 | 0.928 |
ΔFH1 (mm) | 0.471±1.122 | 0.329±0.897 | 0.800±1.031 | 0.391 |
ΔFH2 (mm) | 0.511±1.024 | 0.492±0.929 | 0.833±1.142 | 0.596 |
- ΔSH1, the reduction of intervertebral disk space height at the adjacent upper segment after surgery (ΔSH1=H1−postoperative H1); ΔSH2, the reduction of intervertebral disk space height at the adjacent lower segment after surgery (ΔSH2=H2−postoperative H2); ΔFH1, the reduction of intervertebral disk space height of the adjacent upper segment at the last follow-up (ΔFH1=H1−follow-up H); ΔFH2, the reduction of intervertebral disk space height of the adjacent lower segment at the last follow-up (ΔFH2=H2−follow-up H2)