Postoperative care: 1. Prevention of respiratory complications: Due to the weakness of the elderly, the inability to cough up sputum and painful trauma, and long-term bed rest, this can easily lead to pneumonic pneumonia. For this reason, patients should be encouraged to cough and cough up sputum effectively by tapping on the back from the bottom up, and at the same time making the patients cough out forcefully after deep inhalation. Through tapping, the sputum attached to the alveoli and bronchi can be loosened and discharged with coughing. If necessary, nebulized inhalation is used, and antibiotics, hormones, chymotrypsin and other drugs are added to the nebulized solution to achieve the purpose of anti-inflammation and phlegm reduction. 2, prevention of urinary complications: due to postoperative bed rest, postoperative indwelling catheter or worry about bothering family members and drinking less water, it is easy to lead to the occurrence of urinary stones and urinary tract infection. For this reason, patients should frequently change positions, perform active and passive functional exercises, relieve patients of the burden of thought, drink more water, and keep the perineum clean to reduce the occurrence of complications. The catheter should be removed as soon as possible after 3 days postoperatively. Important: Getting off the floor as soon as possible is an important measure to prevent all complications, so patients must be encouraged to leave bed as soon as possible! It is recommended to start walking with a walker.