As a result, cerical lateral mass screws are generally smaller in length and diameter with starting points, which are medially aligned relatie to thoracic pedicle screws. 因此，颈椎侧块螺钉与胸椎椎弓根螺钉相比，长度和直径较小，进钉点要更向中间靠近。
The cervicothoracic junction is a transitional area where the cervical spine lateral masses decrease in size and the vertebral pedicles increase in size within the thoracic region. 后路钉棒装置系统与前路装置相比，由于使用了牢固的侧块螺钉或椎弓根螺钉，以及在正中矢状面上有更长的固定距离，因此可以提供更好的生物力学稳定性。
