英语语法分析

The collar of the stem could reduce bone loss at the calcar region.

患者本身骨密度高者骨丢失少，假体肩托可部分减少股骨矩的骨丢失。

The curved screw at the femoral calcar was found in the experimental side.

有一只山羊实验侧螺纹钉出现弯曲，为股骨距处螺钉。

Objective To study the methods and effects of operation on femoral neck fracture with calcar comminution.

目的探讨股骨距碎裂的股骨颈骨折的手术方法及疗效。