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Avascular necrosis (AVN), also called osteonecrosis or bone infarction, is death of bone tissue due to interruption of the blood supply. [1] Early on, there may be no symptoms. [ 1 ] Gradually joint pain may develop, which may limit the person's ability to move. [ 1 ]
Spontaneous osteonecrosis of the knee is the result of vascular arterial insufficiency to the medial femoral condyle of the knee resulting in necrosis and destruction of bone. It is often unilateral and can be associated with a meniscal tear .
A bone disease is also called an "osteopathy", but because the term osteopathy is often used to refer to an alternative health-care philosophy, use of the term can cause some confusion. [ 2 ] Bone and cartilage disorders
Perhaps the most dire cause of knee swelling, infection in the knee joint warrants a hasty trip to the doctor. When an infection gets into the knee joint, “the knee quickly becomes really ...
Dysbaric osteonecrosis or DON is a form of avascular necrosis where there is death of a portion of the bone that is thought to be caused by nitrogen (N 2) embolism (blockage of the blood vessels by a bubble of nitrogen coming out of solution) in divers. [1] Although the definitive pathologic process is poorly understood, there are several ...
The major tissues affected are nerves and muscles, where irreversible damage starts to occur after 4–6 hours of cessation of blood supply. [4] Skeletal muscle, the major tissue affected, is still relatively resistant to infarction compared to the heart and brain because its ability to rely on anaerobic metabolism by glycogen stored in the cells may supply the muscle tissue long enough for ...
Knee arthritis is characterized by damaged cartilage. Here, doctors explain arthritis of the knee, causes, symptoms, treatments, types, risks, and prevention.
Medical condition Osteochondritis dissecans A large flap lesion in the femur head typical of late stage Osteochondritis dissecans. In this case, the lesion was caused by avascular necrosis of the bone just under the cartilage. Pronunciation / ˌ ɒ s t i. oʊ k ɒ n ˈ d r aɪ t ɪ s ˈ d ɪ s ɪ k æ n z / Specialty Orthopedic surgery Osteochondritis dissecans (OCD or OD) is a joint disorder ...