Protrusio acetabuli

Case contributed by Ian Bickle
Diagnosis almost certain

Presentation

Right hip pain.

Patient Data

Age: 95 years
Gender: Female
x-ray

Advanced degenerative change on both hips, greater on the right.

Right sided protrusio acetabuli.

Case Discussion

The typical appearances of protrusio acetabuli.  In this case secondary to advanced degenerative change.

The acetabulum and femoral head extend beyond the iliopectineal line into the pelvis.  Compare with the left where the line is uninterrupted. 

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