The Quadriceps angle of the knee is a measurement of the angle between the quadriceps muscles and the patellar tendon and provides useful information about the alignment of the knee joint.

Image showing the way the q-angle is calculated
It is a guide to the sideways forces going through the patella.
Synonyms: 
Q angle
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Dr Sheila StroverĀ (Editor)
BSc (Hons), MB BCh, MBA

See biography...