avascular osteonecrosis - significado y definición. Qué es avascular osteonecrosis
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Qué (quién) es avascular osteonecrosis - definición

BONE DEATH CAUSED WHEN THE BONE NO LONGER RECEIVES BLOOD SUPPLY
Aseptic bone necrosis; Avascular Necrosis; Osteonecrosis; Core decompression; Avascular Necrosis of the Hip; Aseptic necrosis; Avascular necrosis of the femoral head; Intravertebral vacuum cleft sign; Kümmel's disease; Avascular necrosis of the hip; Kummel disease; Aseptic osteonecrosis; Bone Necrosis
  • Front X-ray of right knee of an [[adolescent]] ([[epiphyseal plate]]s are open):  arrows point to avascular necrosis and developing osteochondritis dissecans in the outer [[medial condyle of femur]]

Avascular necrosis         
Avascular necrosis (AVN), also called osteonecrosis or bone infarction, is death of bone tissue due to interruption of the blood supply. Early on, there may be no symptoms.
Osteonecrosis of the jaw         
  • Rise in reported cases of osteonecrosis of the jaw from 1988 through 2007
AREA OF NECROTIC BONE IN THE MANDIBLE OR MAXILLA
Osteonecrosis of the jaws; Osteonecrosis of the Jaw; Osteonecrosis of the mandible
Osteonecrosis of the jaw (ONJ) is a severe bone disease (osteonecrosis) that affects the jaws (the maxilla and the mandible). Various forms of ONJ have been described since 1861, and a number of causes have been suggested in the literature.
Neuralgia-inducing cavitational osteonecrosis         
MEDICAL CONDITION
Neuralgia Inducing Cavitational Osteonecrosis; Neuralgia-inducing cavitational osteonecrosis (NICO)
Neuralgia-inducing cavitational osteonecrosis (NICO) is a controversial diagnosis whereby a putative jawbone cavitation causes chronic facial neuralgia; this is different from osteonecrosis of the jaw. In NICO the pain is said to result from the degenerating nerve ("neuralagia").

Wikipedia

Avascular necrosis

Avascular necrosis (AVN), also called osteonecrosis or bone infarction, is death of bone tissue due to interruption of the blood supply. Early on, there may be no symptoms. Gradually joint pain may develop which may limit the ability to move. Complications may include collapse of the bone or nearby joint surface.

Risk factors include bone fractures, joint dislocations, alcoholism, and the use of high-dose steroids. The condition may also occur without any clear reason. The most commonly affected bone is the femur. Other relatively common sites include the upper arm bone, knee, shoulder, and ankle. Diagnosis is typically by medical imaging such as X-ray, CT scan, or MRI. Rarely biopsy may be used.

Treatments may include medication, not walking on the affected leg, stretching, and surgery. Most of the time surgery is eventually required and may include core decompression, osteotomy, bone grafts, or joint replacement. About 15,000 cases occur per year in the United States. People 30 to 50 years old are most commonly affected. Males are more commonly affected than females.