英语语法分析

Conclusions: The combined hip procedure is an option for acetabular fractures in elderly patients.

结论：髋关节联合治疗是老年病人髋臼骨折的一个选择。

Methods The feature of CT findings on MPR and VR were analyzed in 37 cases with acetabular fractures.

方法分析37例髋臼骨折多层螺旋CT容积再现（VR）及多平面重建（ MPR）的影像特点。

Until the middle of the 20th century, surgical treatment of pelvic and acetabular fractures was non-existent.

在20世纪中期以前，一直不存在骨盆和髋臼骨折的手术治疗。