After the artificial hip replacement, it solves the problem of the previous sick leg activity, and at the same time solves the problem of the pain of the sick and receding, but the artificial hip replacement is after all a mechanical artificial joint, first of all, this joint has a life span, and now the fourth generation of ceramic to ceramic interface joint can theoretically be used for 30 years; secondly, this artificial joint is different from the normal joint in human physiology, so the artificial joint is different according to the prosthesis The type of artificial joint is different, so the angle of its activities and normal joints are very different, need to worry about joint wear and tear, worry about joint dislocation, etc.; again, after artificial joint replacement patients can restore the basic normal gait and walking function, so that patients restore new life, but ultimately is not completely biological normal joints; so artificial joint replacement can not be said to be completely normal joints, but can allow patients to move freely, no The artificial joint replacement cannot be said to be a completely normal joint, but it allows the patient to move freely, without sensation, and the gait is not visible to outsiders who have had an artificial joint replacement.