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Hips – ‘frog-leg’ ventrodorsal canine X-ray positioning guide





Positioning
Position dog in lateral recumbency, lying on side you want to X-ray
Pull other leg back and secure
Ensure elbow is flexed to approximately 45° - avoid over-flexing
Use cotton wool or foam pads to ensure radius and humerus are parallel to plate
Centre over humeral condyle and collimate to 1/3rd of the way along radius/ulna distally and 1/3 of the way along humerus proximally
You may need to use ties or sand bags to ensure leg remains correctly flexed
Ensure L/R marker in primary beam.

What to look for
Ensure condyles are superimposed.

Top tips
Cotton wool is great for lateral elbow positioning as can be shaped to provide right level of support
If using a digital system remember to rotate image so that cranial is to the left


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