(Disclaimer: This article is for general science purposes only. Relevant information in the following content has been processed to protect patient privacy.) Abstract: The trochanteric region of the femur is located at the upper end of the femur, below the head of the femur, specifically the area from the base of the femoral neck to above the lesser trochanter. The patient in this case was 71 years old and had a fall that resulted in an intertrochanteric fracture of the femur. Although this fracture can heal by traction braking of the lower extremity, prolonged bed rest can lead to many other problems such as decubitus ulcers and blood clots in the lower extremity. The family finally decided to undergo joint replacement surgery, after which the patient’s pain was relieved and her joint movement returned to normal, and she walked normally. The patient was treated with surgery (artificial joint replacement) and medication (low molecular weight heparin calcium injection). According to the family, the old man could barely go back to bed after the injury, but the next morning he had severe hip pain, accompanied by obvious swelling and difficulty in moving around. The family then realized that a fracture might have occurred and rushed to the emergency room. Further examination of the patient revealed that the injured lower leg was rotated outward up to 90 degrees, which is a typical manifestation of an intertrochanteric fracture. Through imaging, it was seen that there was a significant fracture line in the trochanteric region of the femur and the fracture end was displaced. （After admission, the patient was first given skin traction on the lower extremity to stabilize the fracture end and relieve the patient’s pain. At the same time, the necessary preoperative tests were completed, including hip CT, lower limb vascular ultrasound, ECG, chest X-ray, routine blood, liver function, kidney function, coagulation items blood collection, etc. Blood preparation was also required before surgery to assess the risk of anesthesia. The patient finally underwent artificial joint replacement on the third day of admission. After the surgery, the incision was changed regularly and the patient was given low-molecular-weight heparin calcium injection for anticoagulation. The duration of the operation was about 1.5 hours, and the operation was smooth. On the 2nd day after surgery, the patient’s joints resumed activities, pain disappeared and swelling was relieved. Two weeks after the surgery, the incision healed smoothly without necrosis, infection and other abnormalities. After 14 days of hospitalization, the patient was able to gradually practice walking on the ground with the help of his family at the time of discharge. Three months after the surgery, the patient’s joints basically returned to their pre-injury state, walking normally and being able to take care of themselves. 4. Precautions We are glad that the patient’s symptoms were relieved after surgery, but there are more precautions after joint replacement. For this patient, due to her age, she needs active anti-osteoporosis treatment after surgery, and she can take oral calcium gluconate tablets and vitamin D drops. Pay attention to balanced nutrition and increase the intake of calcium during the day. In life, patients should pay attention to the hip joint posture and avoid activities such as deep squatting, cross-legged and stilted legs to avoid joint dislocation. Patients should also always pay attention to the wound situation and anti-inflammatory treatment for infections in other parts of the body to avoid the spread of infection. Once the joint shows redness, swelling and pain, patients should seek medical consultation in a timely manner. V. Personal insight Femoral intertrochanteric fractures are more common, and the patient in this case was caused by a fall. Unlike the femoral neck fracture, this fracture is rich in local blood circulation and most of them can heal, but due to the patient’s poor physical condition, more underlying physical diseases and possible osteoporosis, which leads to slow fracture healing. If long-term traction leads to other complications, therefore, for such elderly people with intertrochanteric fractures, doctors mostly recommend surgery to facilitate early release from bed and rehabilitation after surgery.