Femoral intertrochanteric fractures are mostly caused by indirect external forces. They can occur with sudden twisting of the lower extremity, strong inversion or abduction during a fall, or direct external impact on a lateral fall. The fractures are mostly comminuted due to the fragility of the local osteoporosis. In elderly people, the fracture is lax, so when the lower limb is suddenly twisted or falls, it is easy to cause fracture and cause hip inversion deformity. The incidence is 3 times higher in women than in men, with local pain and swelling caused by local hematoma after the injury, and the function of the affected limb is limited, and there may be extensive subcutaneous bruising. Treatment 1, conservative treatment (i.e. traction therapy) for non-displaced stable fractures and serious visceral disease is not suitable for surgery, fracture serious crushed osteoporosis, not suitable for internal fixation and the patient requires traction therapy are applicable. The traction weight should be sufficient, and the traction time should generally exceed 8-12 weeks, but long-term bed rest may be complicated by pulmonary infection, deep vein thrombosis, pulmonary embolism, cerebral embolism, and other recurrence of hip internal derangement. However, due to the high morbidity and mortality rate in elderly patients, long-term limitation of limb movement in conservative treatment and more fracture comorbidities. It has been reported in the literature that in patients with intertrochanteric fractures, the mortality rate in the traction treatment group was 34.6%, while the mortality rate in the internal fixation group was 17.5%. Therefore, traction therapy is less frequently used and early surgical treatment is advocated. 2.Surgical treatment The principle of surgical treatment is the strong internal fixation of the fracture and the early postoperative limb movement of the patient, so that the patient can return to the pre-injury living condition as soon as possible. Commonly used internal fixations are (1) sliding compression screw plate. (2) Intramedullary nail of the hip. (3) artificial joint prosthesis replacement. In recent years, orthopedic surgeons mostly use closed reduction intramedullary fixation, the advantages of which include: effective prevention of rotational deformity, closed reduction with little trauma, central fixation, strong stability, intramedullary fixation reduces fracture end interference, which is beneficial to fracture healing rate. The patient can get out of bed early with strong support. Hip prosthesis is mainly used for patients with severe osteoporosis in advanced age, or patients with bone discontinuity and internal fixation failure. Complications and prognosis The average age of patients with femoral intertrochanteric fracture is 76 years old, and they are in poor physical condition, often combined with hypertension, diabetes, coronary heart disease, cerebrovascular disease, chronic obstructive pulmonary disease and other medical disorders. Therefore, before surgery, we should try to improve the assessment of patients’ internal organ functional status, and for patients with combined medical diseases, we should try to regulate patients’ blood pressure, blood sugar and cardiac and renal function indexes within the acceptable range of surgery, and we should perform surgery as early as possible to reduce patients’ bed rest time and the incidence of complications such as pneumonia, decubitus ulcer, deep vein thrombosis and urinary tract infection. After surgery, the healthy limb should move normally, and the affected limb should be properly exercised in bed as soon as possible to prevent complications. Prevention Since intertrochanteric fractures are mainly caused by traumatic factors and are mostly seen in the elderly, especially in elderly patients with osteoporosis, paying attention to life safety and avoiding trauma is the key to the prevention of this disease; the elderly should insist on exercise and more sunshine when conditions permit; those with previous diagnosis of osteoporosis should be treated with anti-osteoporosis treatment; the space for activities in daily life should be open to avoid cluttered objects that prevent normal walking. Keep the floor dry, especially in the kitchen and bathroom, it is best to do anti-slip treatment. If a fall occurs, seek medical attention in a timely manner to avoid blind massage and orthopedic treatment to displace the fracture and cause secondary injury.