Table 2

Segmental Range of motion* (Mean ± SD) with (control) ALIF cage (degrees).

IntactALIFALIF+PS% Change ALIF from Intact% Change ALIF+PS from Intact
Flexion-Extension 0N7.4±1.85.2±1.40.8±0.3-28±15%-89±4.7%
Flexion-Extension 400N7.4±1.62.9±0.80.6±0.1-61±12%-92±1.9%
Lateral Bending8.9±1.93.9±1.71.1±0.4-56±14%-88±3.4%
Axial Rotation2.6±2.11.6±0.90.6±0.3-22±36%-66±22%
  • * Reported ranges of motion are from combined L2-L3 and L3-L4 motion data.