In PFNA group, 59 patients were treated with closed reduction and minimally invasive PFNA internal fixation, among which 25 were males and 34 were females, aged 54-83 years old, with an average age of 67.43 ± 5.32 years old, and the course of disease was 2-8 d, with an average disease course of 5.23 ± 1.41 d. One hundred and twelve patients with lateral-wall dangerous type of intertrochanteric fracture who underwent surgical treatment in our hospital from May 2017 to May 2019 were selected as the participants and divided into PFNA group and DHS group according to the treatment methods. Therefore, this study retrospectively analyzed 112 cases of elderly patients with lateral-wall dangerous type of intertrochanteric fracture who were treated with PFNA or DHS (dynamic hip screw) surgery and compared the clinical indicators of the two surgical methods and the recovery of limb function of the patients, so as to provide reference for the clinical treatment of FIF in the elderly. As the condition of FIF is more complicated, and the choice of different internal fixation methods varies according to patient's age, condition, physical condition, and clinical type of fracture, how to choose internal fixation for timely treatment and maximize recovery of patient's health has become the key to clinical work. At present, there are many surgical methods for the clinical treatment of FIF, and the choice of internal fixation covers nail plate system (DHS, DCS, PCCP), PFNA (Proximal femoral nail antirotation), and artificial joint replacement. Most scholars believe that as long as patient's physical conditions allow, internal fixation surgery should be adopted to ensure a timely and stable reduction after FIF, so as to prompt patients to recover their mobility as soon as possible and reduce serious complications caused by long-term bed rest, thereby reducing mortality and improving the prognosis of patients. Ĭlinical practice suggests that conservative treatment can easily lead to hip varus, limb external rotation, shortening deformity, disuse osteoporosis, and muscle atrophy, and meanwhile, patients are prone to complications like pulmonary infection, urinary system infection, bedsores, joint contracture, and deep vein thrombosis due to long-term bed rest, resulting in an increase in mortality. The incidence of FIF increases with age, and the increasing aging population in recent years has driven it to become a serious traumatic disease that threatens the health of the elderly, coupled with the fact that elderly patients are always complicated with a variety of concurrent diseases such as diabetes and hypertension, which makes the condition more complicated, the treatment more trickier, and the prognosis generally poor, enormously affecting the short-term and long-term quality of life (QOL) of the patients. As a common type of clinical hip fracture, femoral intertrochanteric fracture (FIF) refers to the fracture between the base of the femoral neck and the lesser trochanter, which is mostly related to osteoporosis and commonly seen in the elderly caused by the direct impact between the femoral trochanter due to falls of the elderly or by indirect torsion of the femoral trochanter.
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