As the world population ages, the number of patients with osteoporotic fractures increases year by year. Hip fractures account for about 50% or more of osteoporotic fractures in the elderly. The number of hip fracture patients worldwide was about 1.26 million in 1990, and will double by 2025, while the whole will reach 4.5 million by 2050. China is entering an aging society, and it is estimated that the elderly population will increase exponentially from 1980 to 2020, with the corresponding incidence of fractures in the elderly increasing by 30% every 10 years, and the number of hip fractures will also increase fourfold, with a sharp increase in medical costs. This means that by 2020, $60 billion will be spent on hip fractures in China and $240 billion by 2040. From 2003 to 2007, 2,305 hip fracture patients were admitted to our hospital, including 1,426 patients >60 years old, accounting for 64.3%; while from 2008 to 2012, 4,101 hip fracture patients were admitted, including 2,853 patients >60 years old, accounting for 70%. Only 30% of the elderly hip fracture patients can return to their pre-injury living condition, causing a heavy economic burden to the patients’ families and society. In view of this serious situation, the province took the lead in the first batch of major health special projects of the governor to carry out a major scientific research on “prevention and treatment of hip fractures in the elderly that restrict the development of Hebei society and families”. The United Nations pointed out in the document on aging: “Please bear in mind that the aging of society in the 20th century will be unprecedented in the history of mankind and will be a major challenge for any society”. This challenge is particularly severe for China, which has a population of 1.3 billion and has entered an aging society early, but it also provides unprecedented opportunities for Chinese orthopaedic surgeons. In terms of fractures of the hip and other parts of the body, we have long copied classic Western orthopaedic textbooks in terms of fracture typing, surgical indications, selection of internal fixation devices, and treatment guidelines. These foreign theories are based on relatively limited case data, and their correctness needs to be further tested in practice due to the limited number of cases, and may not be suitable for Chinese people. The author believes that we should seize this golden period of scientific research on geriatric hip fractures and make our own innovative contributions from Chinese scholars. One of the typical representatives is the “3D Interactive Femoral Head and Stem Resetting Technique for Treatment of Difficult Femoral Neck Fractures”, which is the result of theoretical innovation and technological innovation. The theoretical innovation lies in the definition of difficult-to-replace femoral neck fracture, i.e. “a fracture that is not satisfactorily repositioned by traction for three consecutive times under C-arm X-ray”, which accounts for about 5% of all femoral neck fractures. The technical innovation lies in the fact that this three-dimensional interactive repositioning method breaks the traditional concept of distal-to-proximal fracture repositioning and creatively realizes the closed repositioning of femoral neck fractures in a proximal-to-distal manner. Since the author was the first to report this technique, scholars at home and abroad have begun to apply this minimally invasive method, abandoning the highly invasive incisional internal fixation procedure for the treatment of difficult-to-replace femoral neck fractures. The author is pleased to see the application of this technique in primary care hospitals. In this issue, Dr. Changqing Zhang applied this technique to treat 40 cases of difficult-to-replace femoral neck fractures, with an average intraoperative bleeding of 21 ml. The fractures were all healed after an average follow-up of 21 months, and necrosis of the femoral head occurred in 4 patients (10% necrosis rate), with an average Harris score of 81 at the last follow-up. The minimally invasive advantages of the 3D interactive technique in treating difficult-to-replace femoral neck fractures are well illustrated, and the author hopes that it will benefit more patients and be further improved in practice. Some elderly patients with hip fractures (especially femoral neck fractures) have mild post-injury pain symptoms, and the initial X-ray examination does not reveal the fracture line. CT or MRI should be performed in such patients to exclude fractures. Once the fracture is missed, the fracture is often displaced 2-3 weeks after the patient walks on the ground, resulting in serious consequences such as femoral head necrosis. For those who do not want to undergo CT or MRI examination, they should be informed of their condition and be told to walk on the ground only after the X-ray is confirmed to be free of fracture in 3 weeks, which has been recognized by scholars at home and abroad. However, in recent years, I have encountered a considerable number of patients with incomplete fracture of femoral neck (Garden I type) diagnosed on X-ray in the clinic, which was confirmed to be a complete fracture by CT examination, and also diagnosed as incomplete fracture in the primary hospital, so no surgical treatment was taken and secondary displacement occurred. The author found through a series of imaging and clinical studies that Garden I fractures do not exist in adults, reminding physicians to pay attention to this to avoid underdiagnosis and misdiagnosis. On the other hand, we should cherish the clinical data of a large number of elderly hip fracture patients, conduct careful observation and research, discover new problems, and present our own views on the world orthopedic stage.