This KNEE manufactured by Nacional Ossos for planning and training of orthopedic surgery, with mechanical properties similar to human bone, composed of RIGHT FEMUR AND RIGHT TIBIA with medullary canal and joined by, simulating; the collateral (lateral and medial) and cruciate (anterior and posterior) ligaments for further guidance and procedural guidance. Ideal for placement of screws, plates, external fixator, anchors and for studies, surgical practices and workshop, it can be cut and drilled. It allows the orthopedist to have training, very close to the real thing, training himself with respect to Bioethics.