Bilateral os acetabuli

Case contributed by Dr Henry Knipe

Presentation

Trauma.

Patient Data

Age: 55 years
Gender: Male

Pelvis

X-ray

No fracture. Incidental note of bilateral os acetabuli and pistol grip deformity of the left femur which may cause femoro-acetabular impingement.     

Annotated image

Yellow arrow = os acetabuli

Blue arrow = pistol grip deformity

Case Discussion

Os acetabuli can be congenital and represent a normal variant or can be degenerative in nature and may indicate underlying pathology. 

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