![]() ![]() The CEA is the angle between the line from the center of the femoral head to the outer edge of the acetabulum and the line through the vertical line of the femoral head. The medial intersection of these two lines is the NSA. In addition, the midpoint line of the line between the proximal end of the femoral shaft and the medial and lateral cortex of the femoral shaft was chosen as the anatomical axis of the proximal end of the femur. ![]() We measured the NSA by selecting the line through the center of the femoral head and neck on the standard pelvis or proximal femur as the anatomical axis of the femoral head and neck. The study sample was divided into the femoral neck fracture group ( n = 101) and femoral intertrochanteric fracture group ( n = 97) based on X-ray diagnostic criteria. Exclusion criteria were the following: (1) second hip fracture (2) bilateral hip fracture (3) pathological fracture (4) primary and secondary bone tumor disease, tumor-like disease, tuberculosis, chemotherapy, radiotherapy, and Paget's disease (5) patients having a history of acute stroke and poliomyelitis (6) patients having a history of anti-osteoporosis treatment (7) multiple fractures and (8) congenital dysplasia and deformity of the femur and pelvis. Inclusion criteria were the following: (1) older than 65 years (2) acute fresh femoral neck fractures and intertrochanteric fractures (3) first unilateral fractures (4) patients undergoing operative treatment (5) patients with no thyroid or parathyroid disease in their medical history (6) patients with no bone tumor or tumor-like diseases (7) hip fractures caused by spontaneous falls on the ground and (8) X-ray films of the pelvis and proximal femur before and after operation with standard posture. ![]() Of the 198 cases of geriatric hip fracture patients, 101 patients had femoral neck fractures, and 97 patients had intertrochanteric fractures. Our goal was to provide evidence and guidance for selection and manufacture of clinical prostheses, as well as providing evidence for the accurate reconstruction of proximal femurs in Chinese hip fracture patients.įrom January 2017 to December 2017, 198 patients (44 males and 154 females, mean age ± standard deviation : 77 ± 7 years) with hip fractures were studied. Our study analyzed the geometric parameters of the hip in 198 patients with hip fractures compared to different types of hip fractures. Many other studies have focused on the morphology of hips in Caucasians, but corresponding studies in Asian populations are limited, particularly data on proximal femoral geometric parameters in Han Chinese. Current prosthesis selection in Chinese clinical practice is based on the results of foreign studies, such as the Nobel index of femoral medullary morphology. Some clinical studies have found that results of European and American studies are not entirely applicable to Asian or Chinese people, showing differences in shape, size, and geometry in the proximal femur between racial groups. Therefore, it is of great significance to study the geometric parameters of the hips of elderly patients with hip fractures. A growing number of studies have confirmed that hip bone density and geometry structure are two important determinants of proximal femoral bone strength. This results in a decrease in proximal femur strength and the increased occurrence of hip fractures despite low-energy injuries, such as lateral falls. The increase in the incidence of hip fractures in the elderly is due to decreased bone mass and bone quality. ![]() Hip fractures are related to high mortality, long-term disability, and reduced quality of life, and thus, they are the most serious complication of osteoporosis, imposing a heavy burden on the individual, family, society, and health-care system of China. Hip fractures account for 7% of all adult whole-body fractures and 24% in geriatric populations. Hip fractures in the elderly are commonly referred to as femoral neck fractures and intertrochanteric fractures occurring in the elderly, aged 65 years and over. The incidence of hip fractures in the elderly is increasing year by year. ![]()
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