Posterior Perspective of the Arthritic Femur

Description

Posterior distal femur anatomy is presented with emphasis on the medial and lateral femoral condyles, the intercondylar fossa between them, and the popliteal surface superior to the condyles. Along the posterior articular margins, the cartilage surface appears irregular and thinned, with focal full thickness loss exposing subchondral bone as punctate erythematous areas. Medially, the condyle projects slightly more distal than the lateral condyle in anatomical position, and the posterior condylar contours frame the groove where the posterior cruciate ligament attaches within the intercondylar region. Damage is the story here. Osteoarthritic degeneration of the femoral condyles correlates directly with posterior compartment knee pain and mechanical symptoms, because this surface bears load in flexion when the tibiofemoral contact point shifts posteriorly. Surgeons planning total knee arthroplasty pay close attention to posterior condylar wear when estimating femoral component rotation and balancing the flexion gap; asymmetric loss can mimic or worsen varus malalignment and accelerate medial compartment disease. Posterior osteophytes, often accompanying this pattern, also contribute to flexion contracture and can irritate the posterior capsule near the popliteal fossa. Use this illustration for teaching knee osteoarthritis in gross anatomy labs, MSK pathology courses, and orthopedic modules that contrast normal hyaline cartilage with eburnation and subchondral exposure, and for publisher-ready figures on posterior condylar wear patterns relevant to arthroplasty planning and sports medicine evaluations of painful flexion. Anatomical accuracy verified by SciePro's Medical Advisory Board.