Coxa magna deformity and Legg-Calvé-Perthes

Case contributed by Dr Andrew Ho


Left hip pain.

Patient Data

Age: 22
Gender: Female

Frontal radiograph of the pelvis and hips reveals a short broad femoral head (black arrow) and a relative shortening of the left limb (compare levels of lesser trochanters (yellow arrows) in keeping with a coxa magna deformity in this patient with know Legg-Calve-Perthes (LCP) as a child.

Case Discussion

Coxa magna is a result of insult to the femoral head or epiphysis in childhood.  Coxa magna deformity is a late radiographic finding in this patient with Legg-Calve-Perthes.  Patients with Legg-Calve-Perthes is at risk for developing early osteoarthritis (OA) and femoral acetabular impingement (FAI).

Differential Diagnosis :

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Case information

rID: 23269
Published: 1st Jun 2013
Last edited: 16th Jul 2018
Inclusion in quiz mode: Included

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