results: both indirect and direct comparisons suggest a possible benefit for a sliding hip screw over multiple cancellous screws in reducing the need for revision surgery.
直接与间接的对比都提示滑动螺钉相对于多根松质骨螺钉可能的好处在于减少翻修手术。
the methods include posterior ring internal fixation by using sacral bars, four-hole square plates or cancellous screws with anterior ring fixed by plates.