Total knee and hip replacement have been very successful surgeries and the indications for these are extending daily. We are presenting the case of an adult female who was crippled due to severe deformity of her hip and knee joints and had her life improved tremendously after the surgery. However, the post-operative range of flexion and hip stability were not as good as those following primary hip replacement in joints that had not been ankylosed. Nevertheless, with proper planning and meticulous surgery, it is possible to provide stable and mobile joints to the patients and make their life way better. We suggest that all such patients should be given the option of replacement and few anticipated complications and outcome somewhat inferior to non-ankylosed joints, should not deprive them of the opportunity to make their lives self-reliant.