How to treat ischemic necrosis of the femoral head caused by AS?

  Patient: hip pain, joint space narrowing, femoral head ischemia, limited movement. three years since AS, femoral head ischemia for more than one year. used LiuZi AiRuoHua YiCaiPu Methotrexate and some injections and herbs to activate blood circulation, but the effect is always repeated, the pain is worse and the symptoms of limited movement are getting worse. (Please use the tool on the right side to upload): The results of laboratory tests (blood) are now normal, and imaging tests: joint space narrowing, femoral head ischemia: Tang Liming, Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine: Your condition has developed to an advanced stage. The choice of treatment depends on the severity of your symptoms, if it affects your work and life. You are still very young and will have to face a long life in the future. Please send me the examination information and I will give you my opinion.  Patient: Thank you for your reply! I would like to ask, what is the specific advanced stage, femoral head or ankylosis? The femoral head is not collapsed, the spine is not ankylosed, the back is fine, and there is no problem walking, it is just affected by walking more, what criteria are used to determine if it is advanced? What kind of surgery should be done? Decompression or replacement? Or something else?  Tang Liming, Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine: Because your AS is damaging the hip joints bilaterally, it has caused narrowing of the joint space and limited function, I am referring to the situation of your hip, because AS is a systemic disease, but when it causes serious damage to the joint, it can be treated surgically, there are two main categories 1, hip preservation surgery: arthroscopic synovectomy – less severe, synovectomy – more severe 2, artificial hip surgery: arthroscopic synovectomy – less severe, and synovectomy – more severe. 2, artificial joint replacement surgery: when the pain is severe, the function is poor, other treatment is not effective, the imaging data shows that the joint destruction is serious, such as narrowing of the joint space, function is limited acetabular and femoral head hyperplasia deformation, etc., the specific kind of surgery need detailed information, please send me the examination information, and then give you advice.