Long cage | Short cage | P-value* | ||
---|---|---|---|---|
Flexion and extension ROM (deg)a | Intact spineb | 6.39(2.15) | ||
Cage alone | 4.61(1.25) | 9.14(2.92) | 0.002 | |
UPS | 2.23(0.75) | 3.90(1.31) | 0.004 | |
BPS | 1.23(0.53) | 1.30(0.51) | 0.686 | |
Lateral bending ROM (deg)a | Intact spineb | 6.71(1.79) | ||
Cage alone | 6.55(2.30) | 11.92(3.53) | <0.001 | |
UPS | 4.19(1.76) | 7.7(1.95) | 0.005 | |
BPS | 1.30(0.52) | 1.35(0.40) | 0.698 | |
Axial rotation ROM (deg)a | Intact spineb | 2.24(1.00) | ||
Cage alone | 3.55(1.10) | 7.7(1.88) | <0.001 | |
UPS | 1.49(0.44) | 4.1(1.09) | <0.001 | |
BPS | 1.07(0.34) | 1.24(0.44) | 0.133 | |
Load sharing (%)a | Intact spineb | – | ||
Cage alone | 79.91(10.03) | 66.28(11.28) | 0.022 | |
UPS | 35.80(8.94) | 28.12(6.20) | 0.020 | |
BPS | 21.57(8.70) | 9.90(3.61) | 0.022 |