๐ฆต Understanding Knee Joint Effusions: A Radiological Perspective ๐ฆต
1/ On lateral knee X-rays, the suprapatellar joint recess is bordered by the prefemoral (red) and suprapatellar (blue) fat pads. A thin line of fluid (black arrow) indicates a normal joint fluid amount.
9/ Key Points:
โขUse the amount of joint fluid to assess concern for underlying trauma.
โขSmall effusions are WNL for many adults with degenerative changes.
โขEffusions are always abnormal in children, teens, and young adults.
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