描述

On either side of the patella, the synovial membrane extends beneath the aponeuroses of the Vasti, and more especially beneath that of the Vastus medialis. Below the patella it is separated from the ligamentum patellæ by a considerable quantity of fat, known as the infrapatellar fat pad (Hoffa's).

From the medial and lateral borders of the articular surface of the patella, reduplications of the synovial membrane project into the interior of the joint. These form two fringe-like folds termed the alar folds;below, these folds converge and are continued as a single band, the infrapatellar synovial fold (patellar fold; ligamentum mucosum), to the front of the intercondyloid fossa of the femur.


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