Femur Head Necrosis (Subscribe)  

avascular necrosis (AVN) Etiology ("PLASTIC RAGS"): P pancreatitis L lupus A alcohol S steroids T trauma I idiopathic, infection C caisson disease, collagen vascular disease R radiation, rheumatoid arthritis A amyloid G Gaucher disease S sickle cell disease

avascular necrosis (AVN) staging

Wheeless' Textbook of Orthopaedics
pathogenesis and risk factors:
- Intravascular coagulation and osteonecrosis.
- natural history
- blood supply to femoral head:
- diff dx:
...

This patient had minimal tenderness over his hips, with mild limitation to his range of motion. Both hips had cystic changes in the femoral heads without collapse (Fig. 1). He had been treated 8 months previously with a single intramuscular dose of betamethasone (dose equivalent to 75.5 mg prednisolone) for...

when femoral neck frx occurs, intraosseous cervical vessels are disrupted; - incidence of AVN in undisplaced fractures is 11%; - only 1/3 of patients with AVN will require additional surgery where as 3/4 patients with non union will require reoperation; ...

Uses search string allintitle: ("avascular necrosis" OR osteonecrosis OR AVN) (hip OR "femoral head" OR "head of femur")
Note this is not comprehensive as it only finds pages with Hip AVN in the title.>16,000 July 2007

PubMed Search for Hip AVN as a major subject of the article and excluding Legg Calve Perthes
Search String "Femur Head Necrosis"[Majr:NoExp]
Yields 2879 papers in July 2007 so would likely need to be refined by addition of limits or subject restriction (eg AND pathology)

Avascular necrosis of the femoral head in sickle-cell disease. Treatment of collapse by the injection of acrylic cement. Hernigou P, Bachir D, Galacteros F. Henri Mondor Hospital, Creteil, France. In ten patients with sickle-cell disease, we used a new technique of cement injection for the treatment of 16 painful hips with a radiographic...

Anatomy: - extracapsular arterieal ring at the base of the femoral neck; - formed posteriorly by large branch of MFCA - formed anteriorly by smaller branches...

ISCHEMIC NECROSIS AS A COMPLICATION IN DELVELOPMENTAL DYSPLASIA
This is an 11 months old white male patient who had congenital dislocation of right hip. This was first detected 6 weeks of age. The patient was a breech child delivered by C-section. He is the first child for this 38 year old...

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,...

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...