Different causes could be behind the need for total knee arthroplasty (TKA), with osteoarthritis being the main one. With an ever-greater number of knee implants, the prosthetic market is looking for new technologies that could guarantee a satisfactory outcome while being as less invasive as possible. The focus of this study is to provide a comparison between three different tibial components, created starting from the same model, using the finite element method (FEM) to analyze the directional displacements and the Von Mises stress and strain in static condition. The components' behavior immediately after the implant is of special interest for this study.