Torn Posterior Cruciate Ligament, Posterior View

Description

Posteriorly oriented within the intercondylar notch, the posterior cruciate ligament (PCL) runs from the lateral surface of the medial femoral condyle to its tibial attachment in the posterior intercondylar area of the tibia, just superior to the popliteal sulcus. A ragged tear at one end exposes frayed collagen bundles and disrupted synovial covering within the posterior knee cavity. Medial and lateral femoral condyles form the superior boundary, while the posterior tibial plateau lies inferior, with the posterior horn of the medial meniscus typically seen anteromedial to the PCL footprint. Small capsular folds and adjacent fibers of the posterior oblique ligament and arcuate complex may frame the field laterally near the fibular head region. Posterior visualization matters because the PCL’s tibial attachment sits close to the popliteal neurovascular bundle, so the relationship between the torn ligament edge, posterior capsule, and tibial cortex informs both diagnosis and safe surgical access. Dashboard-type trauma and hyperflexion injuries often produce mid-substance rupture or tibial avulsion, and a posterior perspective clarifies why a positive posterior drawer or posterior sag sign correlates with increased posterior tibial translation rather than isolated meniscal pain. It also highlights common combined injury patterns, including posterolateral corner disruption, which can cause persistent instability if the PCL is treated in isolation. This is where arthroscopy gets unforgiving. Use this illustration in orthopaedic surgery teaching on cruciate ligament biomechanics, sports medicine modules on multi-ligament knee injury, and operative technique texts discussing posterior portals, tibial inlay, or transtibial PCL reconstruction and avulsion fixation. It also fits radiology and physical exam resources that need a clear anatomic anchor for posterior drawer testing and for correlating MRI findings at the femoral and tibial PCL footprints. Anatomical accuracy verified by SciePro's Medical Advisory Board.