每日一问：骨盆骨折两种常见的外固定技术是什么？

What are two common techniques for external fixation for pelvis fractures? 

骨盆骨折两种常见的外固定技术是什么？

Iliac crest/wing ex-fix pins

髂嵴/髂翼外固定针

Start point – 3-4cm posterior to the ASIS centered between the inner and outer tables (within the gluteal pillar)

进针点 – 髂前上棘后方 3-4 厘米，位于内外板之间（臀柱内）

Fluoro image used – obturator outlet view

所用透视图像 – 闭孔出口位

Pin direction – superior to inferior directed towards the supraacetabular bone

针方向 – 从上到下朝向髋臼上骨

Supraacetabular ex-fix pins

髋臼上外固定针

Start point – center of the teardrop visualized on obturator outlet view and at least 2cm above superior acetabulum

进针点 - 闭孔出口位上可见的泪滴中心，且距髋臼上部至少 2cm

Fluoro image used – obturator outlet view for start point, iliac oblique view for depth and to ensure ~1-2cm above sciatic notch, obturator inlet view for visualization of pin along its entire length between inner and outer tables

所用透视图像 – 闭孔出口位用于查看进针点，髂骨斜位用于查看深度并确保位于坐骨切迹上方约 1-2cm，闭孔入口位用于查看外固定针整个长度位于内外板之间

Pin direction – AIIS to PIIS

针方向 – 髂前下棘（anterior inferior iliac spine, AIIS ）至 髂后下棘（posterior inferior iliac spine, PIIS) 

*英文原文为准，中文翻译仅供参考。