Tuesday, March 1, 2011

Lateral Knee X-ray


Here's one of my more common imaging errors in the world of x-ray. The lateral knee requires a lot of attention in the area of tube angle because of body habitus. When the patient has wide hips, more tube angle is required to get the knee perfectly lateral. In this image, I had the central ray positioned properly but not quite enough tube angle to get the joint space completely opened. The medial epicondyle should be almost perfectly superimposed over the lateral epicondyle. In my example here, it is not...

This image was also posted on http://www.xrayforum.net for discussion.  If you haven't stopped by there yet, give it a look!

2 comments:

  1. Great blog... wish you would keep posting. Here's one of my first videos on lateral knee image critique if you're interested: http://youtu.be/xMYCvk21RJE

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