Close to its posterior attachment it gives off a small band of fibres (fasciculus), hnown as the posterior meniscofemoral ligament
, or the ligament of Wrisberg, passing upward and medially to insert into the medial condyle of the femur, immediately behind the attachment of the posterior cruciate ligament.
The medial and lateral menisci, the transverse ligament, and the meniscofemoral ligament appear homogenously dark on all pulse sequences.
The meniscofemoral ligaments of Humphrey and Wrisburg are seen as low signal intensity dots anterior and posterior to the PCL and should not be mistaken for displaced meniscal fragments or an intact PCL in presence of tear.
Comparative Anatomy of the meniscofemoral ligament
in humans and some domestic mammals.
30) The function of the meniscofemoral ligament is to stabilize the lateral meniscus against the pull of the popliteus muscle.
The meniscofemoral ligaments are intimately associated with the PCL as they pass from the posterior horn of the lateral meniscus to the medial femoral condyle.
The transverse meniscal ligament and the meniscofemoral ligaments are other commonly visualized knee ligaments on MRI.
It may be attributed to the misinterpretation of normal meniscofemoral ligament as meniscal tear or operator/procedure dependant drawback of arthroscopy.
On retrospective analysis of MRI, it was found that in one case, presence of meniscofemoral ligament was misinterpreted as meniscal tear.
4) The meniscofemoral ligaments
act as secondary stabilizers to posterior translation of the tibia, with the ligament of Humphrey located anterior to the PCL, and the ligament of Wrisberg located posterior to the PCL.