英语语法分析

The posterosuperior aspect of each vertebral body was chosen as a representative point for the spinal sagittal curve.

每个最体的上后方的面都被作为代表矢状曲线的一个点。

Conclusion: Anterior screw fixation is feasible for type II odontoid fracture with certain fracture line extends from anteroinferior to posterosuperior.

结论：一定角度范围内的前下后上型骨折可使用齿突螺钉固定进行治疗。