Femur Head Necrosis (Subscribe)  

Five patients are described with avascular necrosis of the femoral head who presented with ipsilateral trochanteric bursitis, in the absence of clearcut hip joint disease. Avascular necrosis was indicated by magnetic resonance imaging. It is suggested that clinical trochanteric bursitis, especially when refractory to local corticosteroid treatment, may be the...

CONCLUSION: Both bone marrow edema and joint effusions existed with a peak occurrence in stage III disease. Bone marrow edema seems to have a stronger association with pain than does joint effusion in osteonecrosis of the femoral head.
MR imaging of bone marrow edema and joint effusion in patients with osteonecrosis...

Osteonecrosis (ON) has been reported in femoral remnants removed after failure of hip resurfacing arthroplasty. Experimental and clinical studies have further described thermal effects of the cementation technique, damage of extraosseous blood vessels, and intraoperative hypoxemia as possible causative factors. We analyzed histologically a series of 123 retrieved specimens with...

A bone-conserving prosthetic solution, such as hip resurfacing arthroplasty, is desirable for patients with osteonecrosis (ON) of the femoral head because of their young age. However, many surgeons are reluctant to perform hip resurfacing for ON because of large femoral head defects. To ascertain whether this reluctance is warranted, we...

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)

Definition Non-traumatic or traumatic condition of femoral head with bone death (osteonecrosis)

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...