The destructive tortional moment of anterior plates was higher than articular mass plates and spinous wires.The flectural loading was lower and the displacement was longer.

• 棘突位于椎骨最后部，且是非关节部位，钢丝固定后的加载旋转位移最大，抗旋转稳定性最差，由于前屈力臂短，抗前屈力接近关节突钢板固定。