Q. - The radiograph
below depicts an area of osteonecrosis/ AVN of weight bearing dome of head of femur in a young adult. Which of
these classification system is not applicable in this case?
1. University of Pennysylvania
2. Association research circulation osseous
3. Modified New York criteria
4. Japanese classification
Answer -
New York and modified New York criteria are used for Ankylosing spondylitis as diagnostic criteria.
All others are used for osteonecrosis hip.
The list follows
1. Ficat Arlet classification - most widely used
2. Association research circulation osseous (ARCO)
3. Japanese classification
4. University of Pennsylvania - first MRI based classification
New York and modified New York criteria are used for Ankylosing spondylitis as diagnostic criteria.
All others are used for osteonecrosis hip.
The list follows
1. Ficat Arlet classification - most widely used
2. Association research circulation osseous (ARCO)
3. Japanese classification
4. University of Pennsylvania - first MRI based classification
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