At operatie leels L4/5 and L5/S1, TDR and controls exhibited similar motion profiles in flexion, while fusions exhibited significantly less motion.

• 在L4/5和L5/S1两个手术节段，TDR和正常对照者在屈曲时显示出类似的运动轨迹，而融合者活动度则明显较少。