Abstract
As the population becomes more active and life expectancy increases, gonarthrosis has proportions of epidemics. Total knee arthroplasty (TKA) is an intervention that decreases pain and gives the patients the possibility of quickly returning to the desired level of activity. It is an intervention with a patient satisfaction rate of about 90-95% with a survival of the implant over 15 years of 90%. When dealing with TKA the following elements should be taken into account: clinical examination (walking analysis), leg deformities and knee alignment (foot deformation management), posterior tibial tendon dysfunction, cavovarus foot, posttraumatic deformity, neuropathic arthropathies, ankle arthrosis, foot deformities and knee arthroplasty. Ankle or foot deformity may be causes of progression of gonarthrosis or a TKA failure. Post-operative alignment of TKA is an extremely important element in the long-term survival of the prosthesis. By improving biomechanical alignment of the complete pelvic limb, TKA survival and patient satisfaction will increase.