The interchangeable and anatomically-designed Columbus® Knee System offers proper physician choice and patient specificity. The combinability of Columbus® allows an intraoperative change from a PCL-retaining (CR DD, RP) treatment to a PCL-sacrificing (UC, UCR, PS) treatment. The implant options vary with regard to the degree of guidance and stabilization and thus enable the appropriate treatment of nearly all conditions of the ligaments – since 2003 many physicians trust already in the Columbus® knee prosthesis with its advanced implant design and versatile options and provide a good surgical outcome for both the patient and surgeon.