All You Wanted To Know About Knee Replacement With increase in longevity, more number of senior citizens demand a better quality of life. A painful knee can seriously hamper a person's capacity to walk freely and make him dependent not only on drugs to relieve pain but also on others for mobility. The solution to painful arthritic knee is now easily available in form of Knee Surface Replacement. Imagine yourself pushing a fully loaded vehicle which has flat tyres. You would need considerable force to make it move. Same happens to an overweight person with an Arthritic Knee Joint. Their knee joints feel stiff and are deformed and hence the person needs more physical energy to get up from a sitting position, walk, climb stairs and negotiate slopes.