"During flexion, the anterolateral band becomes tight, whereas the posteromedial bundle tightens during extension 1 and the posterior cruciate ligament as whole acts to resist anterior translation of the femur on the tibia, and posterior translation of the tibia relative to the femur2. While in flexion and weight-bearing (such as walking downhill), PCL is the key stabiliser of the knee joint. During extension, the PCL limits anterior rolling of the femur on the tibia.5"
"Radiographic features "
"Anterolateral: anterior cruciate ligament passes lateral and curves around it"
"Posterior: Immediately posterior lies the oblique popliteal ligament (inferior) and posterior meniscofemoral ligament (superior, posterior to PCL origin). The popliteal artery, popliteal vein and tibial nerve are also posterior"
"Reverse segond fracture"
"Posterior: Immediately posterior lies the oblique popliteal ligament (inferior) and posterior meniscofemoral ligament (superior, posterior to PCL origin). The popliteal artery, popliteal vein and tibial nerve are also posterior"
Expected headings
"Function"
"Radiographic features "
"MRI"