In general, there are only a few mechanisms commonly used, alone or in combination, for assuring lateral stability.
一般来说，只有少数几种常用的抗力机制，单独或联合使用，确保横向稳定性。
2
The longitudinal, lateral and direction of this configuration can be controlled through the combination of different control devices.
通过舵面的不同组合，用于纵向、横向和航向稳定与操纵控制。
3
However, biomechanical studies are rare. Especially the impact of a combination of lateral mass and pedicle screws on stability in multilevel posterior stabilizations has not been evaluated until now.