Femur Head Necrosis (Subscribe)  

Avascular Necrosis of the Hip in Sickle Cell Disease

Cementation for Femoral Head Osteonecrosis: A Preliminary Clinic Study. Clinical Orthopaedics & Related Research. 412:94-102, July 2003. Wood, Mark L. MD; McDowell, Cathy M. RN; Kelley, Scott S. MD Abstract: Treatment for femoral head osteonecrosis has been less successful in late stages of the disease, after progression to collapse. The current...

David S. Hungerford and Lynne C. Jones n: Bone Circulation and Vascularization in Normal and Pathological Conditions Copyright 1993
The proper diagnosis of ischemia and necrosis of bone is of primary practical importance because of the primacy of early diagnosis and the outcome of treatment, whatever it may be. Many authors,...

VEGF plays a role in bone remodeling. Ingrowth of reparative arterioles can be observed in late-stage osteonecrosis. To explore the reparative processes, we quantified the most important angiogenesis factor (VEGF) in different zones of late-stage glucocorticoid-induced osteonecrosis.
The observed high amount of VEGF in later-stage osteonecrosis might stimulate the ingrowth of...

Hungerford, D. S. Early Diagnosis of Ischemic Necrosis of the Femoral Head. Johns Hopkins Medical Journal, 137 (1975), 270-275
Intraosseous pressure in the intertrochanteric region, and response to a five milliliter saline load injected intraosseously were measured in twenty-four hips in twenty patients with ischemic necrosis of the femoral head and...

Background Avascular necrosis (AVN) of the femoral head is a pathologic process resulting from interruption of blood supply to bone. AVN of the hip is poorly understood but is the final common pathway of traumatic or nontraumatic factors that compromise the already precarious circulation of the femoral head. Femoral head ischemia...

Avascular necrosis has been documented following Disseminated Intravascular Coagulation 2 . We are presenting such a case of bilateral avascular necrosis of femoral heads, which interestingly was followed by the spontaneous presentation of the patient's sister with a unilateral avascular necrosis of the femoral head. Both sisters presented with symptoms...

Use search string osteonecrosis hip

Results The number of patients who sought medical care for idiopathic ONFH during 2004 was estimated to be 11,400 (95% confidence interval, 10,100–12,800). We obtained clinical information from 1502 of these patients. The peak in age distribution occurred in the 40s. Potential causative factors were systemic steroid administration (51%) and habitual...

ACR-code 443-441 Clinical presentation: 63 year old caucasian man with recent pain and restricted movement of the right hip. He is a known case of Non-Hodgkin lymphoma and had been receiving a combination of high dose chemotherapy and steroids.
The image shows loss of the normal curve of the head of...

Osteonecrosis of the femoral head (ONFH) is the end point of a variety of disease processes resulting in decreased blood flow and, ultimately, cellular death within the femoral head. This debilitating disease typically affects younger patients (average age at treatment, 33-38 years old) and results in destruction of the hip...

Synonyms and related keywords: aseptic necrosis, avascular necrosis, osteonecrosis of the femoral head, ischemic necrosis
Contents - Introduction Indications Relevant Anatomy And Contraindications Workup Treatment Complications Outcome And Prognosis Future And Controversies Pictures Bibliography
Osteonecrosis of the femoral head involves the hip joint. Osteocytes of the femoral head die along with...

Osteonecrosis (ON) of the femoral head causes the bone to deteriorate, buckle, and collapse. As the vasculature is reportedly uniform in the femoral head, one would expect uniform susceptibility to ON; however, collapse typically occurs in the anterior region. We asked whether regional variations in bone quantity and/or quality could...

Several different staging systems have been developed and continue to be used. Ficat initially developed an AVN staging system based on radiologic findings. This staging system was revised after the widespread use of MRI in the workup of AVN. The staging system presented in the below table is based on...