Catterall classification of Perthes disease
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Catterall classification of Legg-Calvé-PerthesPerthes disease
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The Catterall classification is of Perthes disease is based on radiographic appearances of the epiphysis and metaphysis visible in osteonecrosis of the femoral head:
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stage I
- bone absorption changes visible in the anterior aspect of the epiphysis of femoral head
- changes are visible best in frog leg lateral view
- no sclerosis is seen
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stage II
- further bone resorption with slight femoral head collapse in the anterior aspect of femoral head
- sclerosis
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stage III
- almost entire femoral head involved in collapse with characteristic head within head appearance
- sclerosis
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stage IV
- complete collapse of femoral head with flattening and formation of dense sclerosis; additional metaphyseal changes may be visible
- sclerosis
- posterior remodelling
See also
-<p>The <strong>Catterall classification</strong> is based on radiographic appearances of the epiphysis and metaphysis visible in <a href="/articles/perthes-disease">osteonecrosis of the femoral head</a>:</p><ul>-<li>stage I<ul>- +<p>The <strong>Catterall classification</strong> of <a title="Perthes disease" href="/articles/perthes-disease">Perthes disease</a> is based on radiographic appearances of the epiphysis and metaphysis visible in <a href="/articles/perthes-disease">osteonecrosis of the femoral head</a>:</p><ul>
- +<li>
- +<strong>stage I</strong><ul>
-<li>stage II<ul>- +<li>
- +<strong>stage II</strong><ul>
-<li>stage III<ul>- +<li>
- +<strong>stage III</strong><ul>
-<li>stage IV<ul>- +<li>
- +<strong>stage IV</strong><ul>
-</ul><h4>See also</h4><ul><li><a title="Staging of Legg-Calve-Perthes syndrome" href="/articles/legg-calve-perthes-disease-staging">Staging of Legg-Calvé-Perthes disease</a></li></ul>- +</ul><h4>See also</h4><ul>
- +<li><a href="/articles/waldenstrom-classification-of-perthes-disease">Waldenström classification</a></li>
- +<li><a href="/articles/modified-elizabethtown-classification-of-perthes-disease">modified Elizabethtown classification</a></li>
- +<li><a href="/articles/salter-thompson-classification">Salter-Thompson classification</a></li>
- +<li><a href="/articles/herring-classification-of-perthes-disease">Herring classification</a></li>
- +</ul>
Sections changed:
- Staging
Systems changed:
- Paediatrics
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