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The PCL is located within the knee joint where it stabilizes the articulating bones, particularly the femur and the tibia, during movement.It originates from the lateral edge of the medial femoral condyle and the roof of the intercondyle notch [2] then stretches, at a posterior and lateral angle, toward the posterior of the tibia just below its articular surface.
The double PCL sign is best observed on sagittal T2-weighted or proton density-weighted MRI images. [5] Key features include: [6] Duplicated PCL Appearance: The native PCL appears as a curvilinear low-signal intensity structure in its typical anatomical location.The displaced meniscal fragment appears as a second parallel low-signal structure inferior to the PCL.
The posterior cruciate ligament is located within the knee. Ligaments are sturdy bands of tissues that connect bones. Similar to the anterior cruciate ligament, the PCL connects the femur to the tibia. There are four different grades of classification in which medical doctor's classify a PCL injury: Grade I, the PCL has a slight tear.
Injuries to the PLC often occur in combination with other ligamentous injuries to the knee; most commonly the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL). [2] As with any injury, an understanding of the anatomy and functional interactions of the posterolateral corner is important to diagnosing and treating the injury.
Typically there is a tear of the anterior cruciate ligament, posterior cruciate ligament, and either the medial collateral ligament or lateral collateral ligament. [3] If the ankle–brachial pressure index is less than 0.9, CT angiography is recommended to detect blood vessel injury. [3] Otherwise repeated physical exams may be sufficient. [2]
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The cranial cruciate ligament prevents the tibia from slipping forward out from under the femur. [7] Stifle injuries are one of the most common causes of lameness in rear limbs in dogs, and cruciate ligament injuries are the most common lesion in the stifle joint. A rupture of the cruciate ligament usually involves a rear leg to suddenly become ...
It extends from the lower margin of the patella above, to the infrapatellar synovial fold below. With its free upper margin, this fold extends dorsally through the joint space to surround the two cruciate ligaments from the front, thus dividing the surrounding joint space into two chambers. Laterally of this are a pair of alar folds. [2]