Fat pad impingement syndromes of the knee
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In fat-pad impingement syndromes the aetiologies are different for each knee fat pad.
In anterior suprapatellar fat pad impingment syndromethe cause is usually due to either a developmental cause related to the anatomy of the extensor mechanism, or may be related to abnormal mechanics. In this syndrome the posterior border of the fat pad is convex with mass effect upon the suprapatellar recess.
In infrapatellar fat pad impingement syndrome(Hoffa disease) the cause is usually due to single or repetitive traumatic episodes; the inflamed fat pad then becomes hypertrophied with predisposition to impingement between the tibia and femur, and thus to further injury (a vicious circle).
-<p>In fat-pad impingement syndromes the aetiologies are different for each <a href="/articles/anterior-knee-fat-pads">knee fat pad</a>.</p><p>In <a title="anterior suprapatellar fat pad impingment syndrome" href="/articles/anterior-suprapatellar-fat-pad-impingment-syndrome">anterior suprapatellar fat pad impingment syndrome</a><strong> </strong>the cause is usually due to either a developmental cause related to the anatomy of the extensor mechanism, or may be related to abnormal mechanics. In this syndrome the posterior border of the fat pad is convex with mass effect upon the suprapatellar recess.</p><p>In <a title="infrapatellar fat pad impingement syndrome" href="/articles/infrapatellar-fat-pad-impingement-syndrome">infrapatellar fat pad impingement syndrome</a><strong> </strong>(<a href="/articles/patellar-tendon-lateral-femoral-condyle-friction-syndrome">Hoffa disease</a>) the cause is usually due to single or repetitive traumatic episodes; the inflamed fat pad then becomes hypertrophied with predisposition to impingement between the tibia and femur, and thus to further injury (a vicious circle).</p>- +<p>In fat-pad impingement syndromes the aetiologies are different for each <a href="/articles/anterior-knee-fat-pads">knee fat pad</a>.</p><p>In <a href="/articles/anterior-suprapatellar-fat-pad-impingment-syndrome">anterior suprapatellar fat pad impingment syndrome</a><strong> </strong>the cause is usually due to either a developmental cause related to the anatomy of the extensor mechanism, or may be related to abnormal mechanics. In this syndrome the posterior border of the fat pad is convex with mass effect upon the suprapatellar recess.</p><p>In <a href="/articles/infrapatellar-fat-pad-impingement-syndrome">infrapatellar fat pad impingement syndrome</a><strong> </strong>(<a href="/articles/patellar-tendon-lateral-femoral-condyle-friction-syndrome">Hoffa disease</a>) the cause is usually due to single or repetitive traumatic episodes; the inflamed fat pad then becomes hypertrophied with predisposition to impingement between the tibia and femur, and thus to further injury (a vicious circle).</p>
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Image 3 MRI (PD) ( create )
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