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KNEE FAT PAD IMPINGEMENT MRI APPEARANCE
MRI OF FAT PAD IMPINGEMENT AROUND THE KNEE
Knee fat pad impingement syndromes are characterized by pain and inflammation of the fat pads surrounding the knee joint and can significantly impact knee function.
This blog post looks at the anatomy of the knee fat pads, the MRI appearance of impingement, and key areas to focus on MRI , to make accurate an diagnoses and guide appropriate treatment decisions.
There are four fat pads around the knee that can become impinged and can be symptomatic.
WHAT DOES NORMAL FAT PAD LOOK LIKE
WHICH FAT PADS
Quadriceps fat pad:
Located above the patella and posterior to the quadriceps tendon.Â
Supratrochlear fat pad:
Situated anterior to the femoral trochlea.ÂÂ
Hoffa’s fat pad:
Positioned behind the patella/ patella tendon and tibia.
MRI NORMAL KNEE FAT PADS
Normal fat pads are High Signal on PD or T1 and will be dark on PDFS T2FS or STIR as they will completely fat saturate.
Image Above: Location for quadriceps fat pad (Blue Arrow), Supratrochlear Fat Pad (Pink arrow) & Hoffa’s Fat Pad (yellow arrow).Â
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