Results 1 to 10 of about 24,753 (186)

Sclerotic zone in femoral head necrosis: from pathophysiology to therapeutic implications [PDF]

EFORT Open Reviews, 2023
This review summarizes the sclerotic zone's pathophysiology, characterization, formation process, and impact on femoral head necrosis. The sclerotic zone is a reaction interface formed during the repair of femoral head necrosis.
Pengqiang Lou, Guangzhi Zhou, Bo Wei, Xiaolei Deng, Decai Hou   +4 more
doaj   +2 more sources

Femoral neck fracture after femoral head necrosis: a case report and review of the literature [PDF]

BMC Musculoskeletal Disorders, 2023
Introduction Pathological fractures of the femoral neck caused by necrosis of the femoral head are extremely rare. Here, we report a rare case of bilateral femoral head osteonecrosis extending to the femoral neck, with bilateral pathological fractures of
Wenjie Xia, Aiqi Zhang, Binsong Qiu, Yuan Chen, Mingxiang Kong   +4 more
doaj   +2 more sources

Relationship between anterior or posterior femoral head necrosis and collapse based on MRI-defined key necrotic layer sets [PDF]

Journal of Orthopaedic Surgery and Research
Background Current clinical studies on femoral head necrotic lesions primarily focus on the medial and lateral regions, while detailed MRI-based methods to evaluate the relationship between anterior or posterior necrosis and collapse remain lacking ...
Yawei Dong, Yan Yan, Jun Zhou, Kaiqiang Tang, Xiaohan Wang, Rui Quan, Jiaming Lin, Yan Jia, Zelu Zheng, Baohong Mi, Weiheng Chen   +10 more
doaj   +2 more sources

Research progress in the pathogenesis of hormone-induced femoral head necrosis based on microvessels: a systematic review [PDF]

Journal of Orthopaedic Surgery and Research
Hormonal necrosis of the femoral head is caused by long-term use of glucocorticoids and other causes of abnormal bone metabolism, lipid metabolism imbalance and blood microcirculation disorders in the femoral head, resulting in bone trabecular fracture ...
Tiancheng Ma, Yan Wang, Jianxiong Ma, Hongwei Cui, Xiaotian Feng, Xinlong Ma   +5 more
doaj   +2 more sources

The ratio between the screw distance and femoral neck width on lateral radiography is a reliable predictor of femoral head necrosis: a clinical review and corresponding numerical simulations [PDF]

Journal of Orthopaedic Surgery and Research
Background Fixation instability serves as an initial trigger for femoral head necrosis in patients with femoral neck fractures undergoing internal fixation. The configuration of screw trajectories is critical in determining the stability of the fixation.
Hong Li, Shengyu Wan, Jian Zhang, Fan Wu, Xiaozhong Luo, Chao Wu, Xu Lin, Jingchi Li   +7 more
doaj   +2 more sources

Avascular Necrosis of Femoral Head

Geriatric Orthopaedic Surgery & Rehabilitation, 2013
Avascular necrosis (AVN) of the femoral head is a relatively uncommon complication following an extracapsular hip fracture. Although it can occur following fixation of unstable 3-part or 4-part intertrochanteric fractures with significant posteromedial ...
Ravi Mallina MRCS, Feroz Dinah FRCS
doaj   +2 more sources

Increasing the angle between caudal screw and the transverse plane may aggravate the risk of femoral head necrosis by deteriorating the fixation stability in patients with femoral neck fracture [PDF]

European Journal of Medical Research
Necrosis of the femoral head is the main complication in femoral neck fracture patients with triangle cannulated screw fixation. Instant postoperative fixation instability is a main reason for the higher risk of femoral head necrosis.
Jian Zhang, Shengyu Wan, Xiaozhong Luo, Caidong Zhang, Chao Wu, Lipeng He, Jingchi Li   +6 more
doaj   +2 more sources

Research progress of femoral head necrosis in HIV-infected patients [PDF]

Annals of Medicine
As life expectancy among patients infected with the human immunodeficiency virus (HIV) increases, a growing number of complications have been observed.
Youhan Yang, Futao Ke, Zhengqi Pan, Liaobin Chen   +3 more
doaj   +2 more sources

Avascular Necrosis of the Femoral Head

Journal of Investigative Surgery, 2019
About 250000 patients are operated on annually for hip arthroplasty in the USA alone. Of this number, about 10% the cause of their osteoarthritis is the avascular necrosis of the femoral head.
Roberto Seijas, Andrea Sallent, Eila Rivera, Oscar Ares   +3 more
doaj   +3 more sources

Post radiotherapy femoral head avascular necrosis

Radiology Case Reports
Osteonecrosis is the death of bone cells due to insufficient blood supply; radiotherapy for various underlying malignancies is one of the uncommon causes. Microvascular damage or underlying tissue fibrosis, which leads to an ischemic environment and cell
Amanuel A. Ketema, MD, Bemnet T. Gebregiorigis, Michael T. Abera, MD, Lidet G. Amha, MD, Sonia W. Semayneh, MD   +4 more
doaj   +3 more sources