Comparative biomechanical analysis of pedicle screws versus cortical bone trajectory fixation in the treatment of ankylosing spondylitis.

The preoperative models had an intact structure, but after osteotomy, the spinal column became disconnected, and even with the implantation of internal fixation, the axial stiffness showed a decreasing trend, which is consistent with the findings of Tong Z [ 30 ].

also in 47,180 other papers

The T12–S1 ROM of the PS model was further reduced compared to that of the intact model, while the CBT model showed an increasing trend, but the maximum value was 1.39 ̊, which was also considered stable.

also in 63,971 other papers