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 impingement syndrome,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 anterior suprapatellar (quadriceps) fat pad is high signal on PD MRI and convex with a mass effect upon the suprapatellar bursa.
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 a predisposition to impingement between the tibia and femur, and thus to further injury (a vicious circle).
-<p>In <strong>fat-pad impingement syndromes</strong>, the aetiologies are different for each <a href="/articles/anterior-knee-fat-pads">knee fat pad</a>.</p><p>In <a href="/articles/quadriceps-fat-pad-impingment-syndrome">anterior suprapatellar fat pad impingement 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 <a href="/articles/quadriceps-fat-pad-1">anterior suprapatellar (quadriceps) fat pad</a> is high signal on PD MRI and convex with a mass effect upon the suprapatellar bursa.</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-1">Hoffa disease</a>) the cause is usually due to single or repetitive traumatic episodes; the inflamed fat pad then becomes hypertrophied with a predisposition to impingement between the tibia and femur, and thus to further injury (a vicious circle).</p>- +<p>In <strong>fat-pad impingement syndromes</strong>, the aetiologies are different for each <a href="/articles/anterior-knee-fat-pads">knee fat pad</a>.</p><p>In <a href="/articles/quadriceps-fat-pad-impingement-syndrome">anterior suprapatellar fat pad impingement 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 <a href="/articles/quadriceps-fat-pad-1">anterior suprapatellar (quadriceps) fat pad</a> is high signal on PD MRI and convex with a mass effect upon the suprapatellar bursa.</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-1">Hoffa disease</a>) the cause is usually due to single or repetitive traumatic episodes; the inflamed fat pad then becomes hypertrophied with a predisposition to impingement between the tibia and femur, and thus to further injury (a vicious circle).</p>
References changed:
- 1. J A Jacobson, L Lenchik, M K Ruhoy et-al. MR imaging of the infrapatellar fat pad of Hoffa. (1997) RadioGraphics. 17 (3): 675-91. <a href="https://doi.org/10.1148/radiographics.17.3.9153705">doi:10.1148/radiographics.17.3.9153705</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/9153705">Pubmed</a> <span class="ref_v4"></span>
- 1. J A Jacobson, L Lenchik, M K Ruhoy, M E Schweitzer, D Resnick. MR imaging of the infrapatellar fat pad of Hoffa. (1997) RadioGraphics. 17 (3): 675-91. <a href="https://doi.org/10.1148/radiographics.17.3.9153705">doi:10.1148/radiographics.17.3.9153705</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/9153705">Pubmed</a> <span class="ref_v4"></span>
Images Changes:
Image 8 MRI (PD fat sat) ( create )
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