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This 3D printed specimen demonstrates the ligaments of the knee joint with the leg in flexion. In the anterior view, with the patella and part of the patellar ligament removed, the medial and lateral menisci and anterior and posterior cruciate ligaments are visible. Both tibial and fibular collateral ligaments are intact. Medially, the insertions of the adductor magnus and semimembranosus muscles are retained, with the oblique popliteal ligament reflected onto the posterior aspect of the joint capsule. Laterally, the insertion of the biceps femoris and origins of the popliteus and soleus muscles have been preserved.