Posteromedial knee friction syndrome is a cause of posteromedial knee pain in active young individuals. It is thought to be due to narrowing of the space between the posteromedial femoral condyle, sartorius and/or gracilis tendons.
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Clinical presentation
Patients present with medial knee pain which is often clinically suspected to be due to a meniscal tear.
Radiographic features
It is occult on radiographs and CT.
MRI
Focal area of high signal intensity on T2 or PD weighted fat-saturated images (edema) involving the soft tissue between the posteromedial femoral condyle (PMFC) and the sartorius and/or gracilis tendons. In severe cases, it is associated with bone marrow edema of the PMFC.
In 27%, it is associated with patellar tendon lateral femoral condyle friction syndrome.
Treatment and prognosis
It can be treated with ultrasound-guided corticosteroid injection 2.
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