Coxa profunda

Dr Owen Kang and Dr Henry Knipe et al.

Coxa profunda refers to a deep acetabular socket. On pelvis x-rays it is seen as the acetabular fossa being medial to the ilioischial line. It should be differentiated from protrusio acetabuli, where the femoral head is seen additionally medial to the ilioischial line. Coxa profunda is much more common in females.

Related pathology

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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Article information

rID: 38839
Section: Signs, Approach
Synonyms or Alternate Spellings:
  • Deep acetabular socket

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Cases and figures

  • Case 1: with FAI
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