| ALIF | OLIF | TLIF | Overall | P value |
---|---|---|---|---|---|
APD | |||||
 Pre-OP | 3.3 ± 0.4 | 3.4 ± 0.3 | 3.5 ± 0.4 | 3.5 ± 0.4 | 0.27 |
 Post-OP | 3.4 ± 0.5 | 3.3 ± 0.3 | 3.6 ± 0.5 | 3.5 ± 0.4 | 0.08 |
 2Y | 3.2 ± 0.2 | 3.4 ± 0.3 | 3.6 ± 0.4 | 3.5 ± 0.4 | 0.05 |
ADH | |||||
 Pre-OP | 0.7 ± 0.5 | 0.4 ± 0.3 | 0.7 ± 0.4 | 0.6 ± 0.4 |  0.05 |
 Post-OP | 1.7 ± 0.3 | 2.3 ± 2.3 | 1.3 ± 0.3 | 1.8 ± 1.6 |  < 0.01 |
 2Y | 1.7 ± 0.1 | 2.1 ± 2.3 | 1.1 ± 0.3 | 1.6 ± 1.6 |  < 0.01 |
PDH | |||||
 Pre-OP | 0.3 ± 0.1 | 1.1 ± 2 | 0.5 ± 0.3 | 0.7 ± 1.3 |  0.28 |
 Post-OP | 1.2 ± 0.6 | 1.6 ± 1.4 | 0.8 ± 0.3 | 1.2 ± 1 |  < 0.01 |
 2Y | 0.9 ± 0.9 | 1.1 ± 0.5 | 0.7 ± 0.3 | 0.9 ± 0.4 |  < 0.01 |
WI | |||||
 Pre-OP | 0.2 ± 0.5 | 0.2 ± 0.7 | 0.3 ± 0.4 | 0.2 ± 0.8 | < 0.01 |
 Post-OP | 0.4 ± 0.7 | 0.3 ± 1.8 | 0.4 ± 0.8 | 0.4 ± 1.0 | < 0.01 |
 2Y | 0.4 ± 0.6 | 0.3 ± 0.2 | 0.4 ± 0.4 | 0.4 ± 0.6 |  < 0.01 |
SL | |||||
 Pre-OP | 3.2 ± 0.5 | 5.6 ± 4.4 | 7.1 ± 7.2 | 6.4 ± 6.1 | 0.28 |
 Post-OP | 9.1 ± 12.6 | 8 ± 6.1 | 11.3 ± 7.6 | 9.8 ± 7.2 | 0.02 |
 2Y | 8.4 ± 8 | 7.5 ± 6.3 | 10.1 ± 7.5 | 8.9 ± 7.1 | 0.09 |
FW | |||||
 Pre-OP | 1.2 ± 0.2 | 1.5 ± 0.6 | 1.1 ± 0.3 | 1.8 ± 2.5 | 0.16 |
 Post-OP | 1.3 ± 0.6 | 2.1 ± 2.7 | 1.3 ± 0.3 | 1.6 ± 1.8 | 0.04 |
 2Y | 1.5 ± 0.8 | 2.4 ± 3.3 | 1.3 ± 0.4` | 1.7 ± 2.2 | 0.03 |
FH | |||||
 Pre-OP | 1.8 ± 0.3 | 3.2 ± 6.3 | 1.4 ± 0.3 | 2.6 ± 4.3 | 0.05 |
 Post-OP | 2 ± 0.1 | 3 ± 4.6 | 1.6 ± 0.4 | 2.2 ± 3.1 | 0.04 |
 2Y | 1.5 ± 0.3 | 2.9 ± 4.4 | 1.5 ± 0.3 | 2.1 ± 3 | 0.03 |