| MCs-0 group | MCs-1 group | MCs-2 group | P value |
---|---|---|---|---|
ODI | ||||
 Preoperative | 25.3 ± 8.8 | 26.7 ± 9.3 | 28.2 ± 8.5 | 0.257 |
 Final follow-up | 12.6 ± 10.3* | 8.8 ± 10.3* | 13.6 ± 9.8* | 0.459 |
VAS for low back pain | ||||
 Preoperative | 6.4 ± 2.7 | 7.6 ± 2.5 | 6.9 ± 3.2 | 0.153 |
 Final follow-up | 2.6 ± 1.9* | 1.6 ± 1.5* | 2.5 ± 1.7* | 0.031 |
VAS for leg pain | ||||
 Preoperative | 6.3 ± 2.8 | 6.2 ± 3.6 | 6.0 ± 2.2 | 0.582 |
 Final follow-up | 2.3 ± 2.1* | 2.1 ± 1.9* | 2.7 ± 1.9* | 0.183 |