Total knee arthroplasty has proven to be successful and durable solution in the treatment of patients with end-stage osteoarthritis. The total condylar design first was introduced in 1973 as reported by Insall et al and subsequently stimulated the development of several other similar designs. As prosthetic design and technique have become more refined; results correspondingly have improved (Emerson RH et al., 2000). In 1985, Hofmann initiated a program to design a durable cementless total knee replacement system. The porous-coated system was designed to be bone sparing, provide excellent postoperative range of motion (ROM), and give a consistent pain-free clinical result for the active patients. Concurrent Institutional Review Board approved basic science and postmortum retrieved programs comlemented the design process (Bloebaum RD et al., 1998).