Case: Lower limb radiograph #97701195
Lower limb Beginner
Read this radiograph systematically before revealing the answer. What is the main abnormality?

Image: Hellerhoff via Wikimedia Commons · CC BY-SA 4.0 · source · resized and converted to WebP
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Answer: Normal knee radiograph
What to look for in normal knee radiograph
- The femur is centred on the tibia on both views and the patella sits at a normal height.
- Both tibial plateaux are smooth, with no step, depression or split, and the joint spaces are similar.
- No effusion or fat-fluid level in the suprapatellar recess on the lateral; a fabella behind the knee is a normal sesamoid.
Description by the image author (may be in another language): Das Tuberculum adductorium befindet sich am Epicondylus medialis des Femur und entspricht der Ansatzstelle des Musculus adductor magnus.
Educational case. The diagnosis comes from the image's documented source; the "what to look for" list describes the condition in general and is not a report of this individual image.




