Catterall classification of Perthes disease
Updates to Article Attributes
Body
was changed:
The Catterall classification is based on radiographic appearances of the epiphysis and metaphysis visible in osteonecrosis of the femoral head:
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
Stage II
- further bone resorption with slight femoral head collapse in the anterior aspect of femoral head
. - sclerosis
Stage III
- almost entire femoral head involved in collapse with characteristic head within head appearance
. - sclerosis
Stage IV
- complete collapse of femoral head with flattening and formation of dense sclerosis
. Additional; additional metaphyseal changes may be visible - sclerosis
- posterior
remodelingremodelling
-<li>changes are visible best in <a href="/articles/frog-leg-lateral-view">frog leg lateral view</a>.</li>- +<li>changes are visible best in <a href="/articles/frog-leg-lateral-view">frog leg lateral view</a>
- +</li>
-<li>further bone resorption with slight femoral head collapse in the anterior aspect of femoral head.</li>- +<li>further bone resorption with slight femoral head collapse in the anterior aspect of femoral head</li>
-<li>almost entire femoral head involved in collapse with characteristic head within head appearance.</li>- +<li>almost entire femoral head involved in collapse with characteristic head within head appearance</li>
-<li>complete collapse of femoral head with flattening and formation of dense sclerosis. Additional metaphyseal changes may be visible</li>- +<li>complete collapse of femoral head with flattening and formation of dense sclerosis; additional metaphyseal changes may be visible</li>
-<li>posterior remodeling</li>- +<li>posterior remodelling</li>
Unable to process the form. Check for errors and try again.