Protrusio acetabuli – Classification

Protrusio acetabuli is divided into two types, primary and secondary. * Characterized by progressive protrusio in middle aged women. * May be associated with OA. * May be familial. ''Secondary'' protrusio acetabuli.



Protrusio acetabuli is divided into two types, primary and secondary.

''Primary'' protrusio acetabuli

* Characterized by progressive protrusio in middle aged women

* May be associated with OA

* May be familial

''Secondary'' protrusio acetabuli



Causes include:

may be present bilaterally in Paget's disease, Marfan syndrome, RA, AS, & osteomalacia;

* Femoral head prosthesis

* Cup arthroplasty

* Septic arthritis

* Central fracture dislocation

* Total hip replacement surgery


Adapted from the Wikipedia article Protrusio acetabuli, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki








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