Hilgenreiner epiphyseal angle
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Hilgenreiner epiphyseal angle(hil′gĕn-rīn″ĕr)
[Heinrich Hilgenreiner, Austrian orthopedist and surgeon, 1870–1954.]
The angle formed by a line drawn through the triradiate and a line drawn through the physes of the femoral head. This angle is normally 25°. Coxa vara is marked by angles greater than 25°; coxa valga by angles less than 25°.