The patients should be encouraged and assisted to carry out exercises, so that all patients can carry out rehabilitation training with good psychological status. Pre-operative guidance and training The purpose is for patients to know in advance the preparation before surgery and understand the post-operative precautions. Posture instruction The patient is instructed on the correct postoperative position to be adopted to prevent prosthesis dislocation. Total hip arthroplasty is one of the most important means to improve the function of the diseased hip joint. First of all, the patient and family members should be fully aware of the role and importance of rehabilitation training in the whole disease treatment process, so that they can participate in the training of functional rehabilitation subjectively and actively. Patients have a history of long-term illness and pain, and have high expectations of surgery, so there are two kinds of situations after surgery: first, they are eager for success and blindly overdo the exercise progress and move around freely; second, they are overly cautious and worry that the surgery will fail after the activity. Place an abduction frame or thick pillow between the legs, and prepare suitable anti-rotation shoes if necessary. If you need to lie on your side, you should turn to the healthy side and put a soft pillow between your legs to keep the affected limb on top. The purpose of bedside defecation training is to prevent urinary retention and constipation due to unaccustomed position after surgery. When placing the bedpan, it is important to raise the buttocks to a sufficient height and avoid external and internal rotation of the affected limb. Use a special female urinal for female patients to avoid excessive use of the potty and to increase hip movement. Instruct the toes and ankle joints of the healthy limb and the affected limb to move sufficiently, and when the affected limb is flexed at the knee and hip, the hip joint should be flexed <45° and internal rotation of the affected hip should be avoided. Instruct the correct use of crutches, prepare suitable double crutches, make the height and middle handle of the crutches appropriate to the patient's height and arm length, equip the bottom of the crutches with rubber devices (anti-slip), and wrap the top of the crutches with soft pads (to reduce the direct pressure on the internal fossa), train those who can walk before surgery to master the use of the crutches, practice standing with the support of the double crutches and the healthy leg, and walk without weight on the affected limb.