Patients with femoral neck fractures tend to have mild hip flexion and knee flexion and external rotation deformities. Fractures of the femoral neck often occur in the elderly, and their incidence increases as people live longer, most often between the ages of 50 and 70. There are 2 basic factors that cause fractures in the elderly, endogenous bone strength decreases, mostly due to osteoporosis; double-quantum densitometry confirms that the number of tension trabeculae in the femoral neck becomes thinner, decreases or even disappears, and finally the number of pressure trabeculae also decreases, together with the dense trophoid vascular pores in the upper femoral neck area (mean 14.6 ± 0.22 standard deviations of 3.1 according to 200 adults with observed measurements in the upper femoral neck area), both of which can make weaken the biomechanical structure of the femoral neck and make it vulnerable. What are its examination methods? 1, computerized tomography CT examination CT is a full-featured condition detection instrument, it is the abbreviation of electronic computer X-ray tomography technology. CT examination is based on the different absorption and transmission rates of different tissues of the human body to X-rays, the application of extremely sensitive instruments to measure the human body, and then the data obtained from the measurement into the electronic computer, the electronic computer processing the data, it can After processing the data, the electronic computer can take a cross-sectional or three-dimensional image of the examined part of the human body and discover small lesions in any part of the body. Bone and joint MRI examination Bone and joint MRI examination is the use of MRI to scan bones and joints to observe the condition of the bone and to confirm the diagnosis of related diseases. It is suitable for patients with bone and joint diseases. 3.General radiography X-rays are mainly used to detect lesions in the bones, but they are also quite useful for detecting lesions in the soft tissues. Common examples are chest X-rays, which are used to diagnose lung diseases such as pneumonia, lung cancer or emphysema, and abdominal X-rays, which are used to detect intestinal obstruction, free gas and free fluid. The use of X-rays for diagnosis is controversial in some cases, such as stones (which have little to no blocking effect on X-rays) or kidney stones (which are generally, but not always, visible). 4. Plain fluoroscopy Fluoroscopy is easy to perform, provides immediate results, and allows simultaneous observation of the morphology and function of organs. 5.Kliman’s sign Kliman’s sign is an examination of the skin after overlapping displacement of a femoral fracture and is used to suggest a femoral fracture.