I. What conditions are suitable for hip joint replacement surgery? (1) various inflammatory arthritis of hip joint, including primary or secondary osteoarthritis, traumatic arthritis, rheumatoid arthritis, hemophilic arthritis, Charcot arthritis, etc.; (2) femoral head necrosis; (3) congenital hip dislocation or subluxation, acetabular dysplasia; (4) hip joint fusion or pseudo-joint formation; (5) periprosthetic tumor; (6) resting period (6) infectious arthritis (including tuberculosis); (7) failed repair after hip reconstruction surgery. (2) What circumstances contraindicate hip replacement surgery? (1) Recent and current infection in the hip joint and infection in the distant part of the hip joint; (2) Internal medical condition does not allow. The advantages and disadvantages of the artificial hip joint are: (1) The surgical technique is mature. (2) The surgical treatment period is relatively short, within 10 days of hospitalization, and the recovery period is about 2-3 months. (3) The joint pain can be completely removed. The disadvantages are: (1) It has an effect on running and hiking. (2) Full squatting is not recommended after surgery. (3) After 10-15 years after surgery, there may be loosening between the bone and the artificial joint, and the percentage of replacement is about 5-10%. (4) It is very difficult to treat infections in artificial joints. 1% of people have infections after surgery, which require prolonged treatment or even removal of the artificial joint, and joint replacement after the infection is controlled. The rate of infection in the resurfaced joint is higher than the first surgery. (5) The price is more expensive. Fourth, how to choose a good artificial hip joint? When a patient decides to adopt the treatment method of artificial joint replacement, a question often comes up: what kind of artificial joint is the best artificial joint? First of all, different patients should choose different artificial joints. At present, artificial hip joints are very mature in terms of prosthesis and surgical techniques, and they have been widely used in clinical practice and have achieved good clinical results. The choice of artificial hip prosthesis is very different from other commodities, because once the artificial hip prosthesis is placed in the human body, it is not easy to “replace”, and even if it is “replaced”, the cost is quite large, and it can not be measured by money alone. Therefore, the choice of a good artificial joint should be made carefully under the guidance of experts. V. The main process of hospitalization First, come to the orthopedic clinic to register my number to open a hospitalization certificate, due to the number of patients in joint surgery, bed tension, I will help you arrange hospitalization. After hospitalization, a doctor will ask you about your medical history and physical examination, and routine tests and examinations before surgery. Day before surgery: Pre-surgery interview and medical documents such as consent form, allergy skin test, blood preparation, etc. On the day of surgery: fasting, catheterization, infusion, and surgery. After surgery, we will keep the infusion tube, urinary catheter and wound drainage tube. After surgery: regular change of medication, generally do not need to remove stitches, gradually enhance functional exercise, generally in about 3 days on crutches to the ground. Six, postoperative examination One, two, three, six months after surgery to the hospital to review, take X-rays, to understand the position of the joint prosthesis and stability is good. Six months after the operation and then once again, and every year after that, we should take X-rays to check. If there is discomfort, such as redness, swelling, pain or difficulty in moving the joint, as well as injury to the joint due to unexpected circumstances, promptly go to the hospital for examination.