Metaphyseal blanch sign
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Metaphyseal blanch sign
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The metaphyseal blanch sign of(a.k.a. metaphyseal blanch sign of Steel) is one of the signs seen on AP views of the adolescent hip indicating posterior displacement of the capital epiphysis.
It is a crescent-shaped area of increased density, that overlies overlies the metaphysis adjacent to the physis on on the AP radiograph. It is caused by superposition of of the femoral neck and the posteriorly displaced capital epiphysis.
Thus suggesting slipping of the capital femoral epiphysis on the AP view, aA lateral radiograph is indicated to to confirm or exclude the suspected diagnosis.
History and etymology
Howard HaldemanSteel (b. 1921) is an American paediatric orthopaedic surgeon, who described the sign in an article published in 1986.
See also
-<p>The <strong>metaphyseal blanch sign of Steel </strong>is one of the signs seen on AP views of the adolescent hip indicating <a href="/articles/slipped-upper-femoral-epiphysis">posterior displacement of the capital epiphysis</a>.</p><p>It is a crescent-shaped area of increased density, that overlies the metaphysis adjacent to the physis on the AP radiograph. It is caused by superposition of the femoral neck and the posteriorly displaced capital epiphysis.</p><p>Thus suggesting slipping of the capital femoral epiphysis on the AP view, a lateral radiograph is indicated to confirm or exclude the suspected diagnosis.</p><h4>See also</h4><ul>-<li><a href="/articles/trethowans-sign">Trethowan´s sign</a></li>-<li><a href="/articles/scham-sign">Scham sign</a></li>- +<p>The <strong>metaphyseal blanch sign </strong>(a.k.a. <strong>metaphyseal blanch sign of Steel)</strong> is one of the signs seen on AP views of the adolescent hip indicating <a href="/articles/slipped-upper-femoral-epiphysis">posterior displacement of the capital epiphysis</a>.</p><p>It is a crescent-shaped area of increased density, that overlies the metaphysis adjacent to the physis on the AP radiograph. It is caused by superposition of the femoral neck and the posteriorly displaced capital epiphysis.</p><p>A lateral radiograph is indicated to confirm or exclude the suspected diagnosis.</p><h4>History and etymology</h4><p><strong>Howard Haldeman</strong> <strong>Steel </strong>(b. 1921) is an American paediatric orthopaedic surgeon, who described the sign in an article published in 1986.</p><h4>See also</h4><ul>
- +<li><a href="/articles/trethowan-sign-1">Trethowan sign</a></li>
- +<li><a href="/articles/scham-sign-hip">Scham sign</a></li>