Patient: Description of the condition (onset time, main symptoms, hospital visited, etc.): In June this year, the pain in my left leg was so bad that I walked more, and was found to have congenital hip dysplasia at Cangzhou Central and Western Hospital and Jishuitan Hospital, and recently I have been having pain and my left leg is obviously thinner than my right leg. I would like to ask, is this a case of muscle atrophy? Will it be relieved after the replacement surgery? The orthopedic department of Guangdong Provincial Hospital of Traditional Chinese Medicine, Huang Yongming: Because of your hip dysplasia and the manifestation of osteoarthritis, due to the pain of the affected limb is not the most weight-bearing limb muscle atrophy, this situation is called costly atrophy, after the joint replacement will be restored. Patient: Thank you, Dr. Huang. Will it get worse if I don’t have surgery first? What kind of exercise is needed to make it better? Or is it better to operate as soon as possible? Huang Yongming, Department of Orthopedics, Guangdong Provincial Hospital of Traditional Chinese Medicine: If you do not have surgery, the changes of hip osteoarthritis will be progressively aggravated, and the hip joint will have increased pain, walking difficulties, and even limping. Surgery is good for improving your quality of life, but there is also the problem of artificial joint revision, which needs to be carefully weighed by you. Patient: Well, for this case has been basically understood, now has affected the normal walking, because of the age of the problem, recently is worried about whether to operate, Dr. Huang! Do we have hip replacements in the twenties in our clinic? What are the results? What is the longest life span of an artificial joint? If I have it done now, will I have to have it done two or three more times in the future 。。。。 Huang Yongming, Department of Orthopedics, Guangdong Provincial Hospital: The age limit for artificial joint replacement is not as strict as it used to be, usually it is better to be over 55 years old, but now it is generally relaxed to 50 years old, but there are some patients who have too much joint damage to take conservative treatment, even if they are 20 years old, they can also undergo surgery. So there is an argument that age is not the limit. Artificial joint replacement is a relatively mature technology, joint replacement has a good effect after surgery, the function can basically reach normal requirements. In recent years, artificial technology has developed rapidly, especially anatomical prostheses, such as neck preservation, and artificial joint materials, such as ceramics, have made it possible to use artificial joint replacement in young patients, so we can use this technology in patients in their twenties. However, the loosening of the joint is very much related to the technology of the first replacement, as well as to the work and living habits, so you need to consider and choose carefully. You are also welcome to come to Guangzhou for treatment. Patient: Sincerely thank you Dr. Huang for your detailed explanation, I feel that you are a very responsible doctor! The current situation does affect my mood and work life, and I am considering whether to have surgery. There are still a few questions that I am not sure about: How much does it cost to have a total hip replacement in our hospital? Is it possible to get out of bed for functional training a few days after surgery? How long will it take for the symptoms of costly atrophy of the affected limb to recover? Will it have any effect on future marriage and childbirth? Is there any hereditary problem? Huang Yongming, Department of Orthopedics, Guangdong Provincial Hospital of Traditional Chinese Medicine: The cost of total hip replacement surgery is related to the metal and ceramic materials used, and there are differences between domestic and imported ones. Imported general metal to high cross-linked plastic is about 30,000 yuan (material cost), ceramic to high cross-linked plastic is about 35,000 yuan, ceramic to ceramic is about 45,000 yuan, and other costs are about 15,000 yuan. The patient can usually move down to the ground one week after the surgery, and the atrophy will gradually ease as the post-operative joint function is restored, but it usually takes more than a year to fully recover. The current metal-to-metal material for artificial joints is considered to have an effect on marriage and childbirth, so metal-to-metal material is not recommended for infertile patients. There are no genetic problems with artificial joint replacement. Patient: In consideration of future revision surgery, a friend suggested that I have a hip surface replacement. Dr. Huang, what is the best material for surface replacement? Does it have any effect on future fertility problems? Will the life expectancy of the prosthesis be longer, and will I have to have a total hip replacement after N years? Huang Yongming, Department of Orthopaedics, Guangdong Provincial Hospital of Traditional Chinese Medicine: Hip surface replacement is a better choice for hip dysplasia, but because the surface replacement is a metal-to-metal interface, there is a metal ion reaction caused by metal wear and tear, so it should be very cautious for unmarried people with no children. The surface replacement is to preserve the amount of bone in the femoral head as much as possible, and total hip replacement can be performed during the second surgery, which will last about the same number of years as the usual joint. Another option is neck preservation surgery, which also preserves the bone volume of the femoral neck as much as possible and facilitates secondary surgery.