ANATOMY
MUSCULOSKELETAL AND SOFT TISSUE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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atrophy
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osteonecrosis
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osteoblast
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osteoclast
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Detailed explanation-1: -The bones of the human body are made up of living cells that need a blood supply to stay healthy. In osteonecrosis, blood flow to part of a bone is disrupted. This results in death of bone tissue, and the bone can eventually break down and the joint will collapse.
Detailed explanation-2: -Regardless of whether you’ve been treated with medication or surgery, most people fully recover from osteonecrosis and are eventually able to use the affected joint without pain.
Detailed explanation-3: -Avascular necrosis is the death of bone tissue due to a lack of blood supply. Also called osteonecrosis, it can lead to tiny breaks in the bone and cause the bone to collapse. The process usually takes months to years. A broken bone or dislocated joint can stop the blood flow to a section of bone.
Detailed explanation-4: -Stage 1 has a normal x-rays but MRI reveals the dead bone. Stage 2 can be seen on regular x-ray but there is no collapse of the femoral ball. Stage 3 shows signs of collapse (called a crescent sign) on x-ray. Stage 4 has collapse on x-ray and signs of cartilage damage (osteoarthritis).