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  2. Spontaneous osteonecrosis of the knee - Wikipedia

    en.wikipedia.org/wiki/Spontaneous_osteonecrosis...

    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 .

  3. Avascular necrosis - Wikipedia

    en.wikipedia.org/wiki/Avascular_necrosis

    Osteonecrosis, [1] bone infarction, [2] aseptic necrosis, [1] ischemic bone necrosis [1] Femoral head showing a flap of cartilage due to avascular necrosis (osteochondritis dissecans). Specimen removed during total hip replacement surgery. Specialty: Orthopedics: Symptoms: Joint pain, decreased ability to move [1] Complications: Osteoarthritis ...

  4. Osteochondritis dissecans - Wikipedia

    en.wikipedia.org/wiki/Osteochondritis_dissecans

    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 ...

  5. Phemister graft - Wikipedia

    en.wikipedia.org/wiki/Phemister_graft

    In 1949, Phemister described a variation on the technique where the graft tissue was inserted into the base of the greater trochanter and femoral neck in order to treat osteonecrosis. [6] A 1967 study found the original Phemister graft to be more effective than the cortical sliding graft and cancellous graft for fractures of the tibia. [7]

  6. Dysbaric osteonecrosis - Wikipedia

    en.wikipedia.org/wiki/Dysbaric_osteonecrosis

    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 ...

  7. Legg–Calvé–Perthes disease - Wikipedia

    en.wikipedia.org/wiki/Legg–Calvé–Perthes...

    The condition is most commonly found in children between the ages of 4 and 10. Common symptoms include pain in the hip, knee, or ankle (since hip pathology can cause pain to be felt in a normal knee or ankle), or in the groin; this pain is exacerbated by hip or leg movement, especially internal hip rotation (with the knee flexed 90°, twisting the lower leg away from the center of the body).

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