31-E/21. Epiphysiolysis with metaphyseal wedge, SH II

 

31-E/2.1

Inferior displacement of femoral head

The pattern of this rare fracture is a traumatic separation of the proximal femoral epiphysis with a metaphyseal wedge. The wedge is usually located inferiorly.

As the head is displaced inferiorly, and a metaphyseal wedge remains attached to the head, the inferior vessels supplying the capital epiphysis are usually spared, reducing the risk of AVN.

Note: Be aware of nonaccidental injuries in very young children.

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v1.0 2017-12-04