Knee osteoarthritis (OA) is one of the main causes of knee pain and disability in elderly population and its prevalence has been sharply increased in the recent years in developing countries [1]. Obesity, any history of knee injuries and extreme physical activities [2], combined with age factors contribute to the appearance of OA. To restore function in arthritic knees and alleviate crippling pain, knee replacements or total knee arthroplasty (TKA) surgeries have become an effective solution. With the seminal work of Insall et al. in the early 70s, a new concept for TKA prosthesis was introduced: total condylar prosthesis. Previously encountered problems of hinged prosthesis have been solved using this semiconstrained design that recreates both the patellofemoral and femorotibial joints. The total condylar prosthesis, as represented in Figure 1, is composed of three main parts for recreating the tibiofemoral joint: a femoral component, an ultra-high molecular weight polyethylene (UHMWPE) insert and a tibial component. Additionally, on the knee cap, a patella button can be assembled, which slides on the anterior part of the femoral component.