Coxa profunda

Last revised by Ciro Menna Barreto Duarte on 27 Sep 2022

Coxa profunda refers to a deep acetabular socket (i.e. increased acetabular depth). 

Coxa profunda is much more common in females.

On AP pelvis x-rays it is seen as the lateral border of the acetabular teardrop being in line with or medial to the ilioischial line 4.

Coxa profunda should be differentiated from protrusio acetabuli, where the femoral head is seen additionally medial to the ilioischial line 4

Coxa profunda is a non-specific finding and has previously been implicated in pincer-type femoroacetabular impingement, but is just as likely to be seen in asymptomatic patients 1,2.

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