Proximal femoral focal deficiency (class A)

Case contributed by Dr Angela Byrne

Presentation

Congenital shortening of the left leg.

Patient Data

Age: 11 years
Gender: Male

Case Discussion

This boy has marked abnormality of the femur consisting of an abnormally shaped proximal femur with a mid-shaft pseudoarthrosis. Features are consistent with a proximal focal femoral deficiency (PFFD).

In addition of frontal full length x-ray there appears to be absence of  fibula (fibular hemimelia) which is a well recognised association. In fact the fibula is hidden behind the tibia. 

PFFD can be classified in many different ways, but the most commonly used (and simplest) classification is that proposed by Aitken and modified by Amstutz - see classification of PFFD.

According to the Aitken classification this is a class A deformity (type 2 Amstutz). 

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Case information

rID: 7598
Case created: 11th Nov 2009
Last edited: 1st Oct 2015
Tag: femur
Inclusion in quiz mode: Included

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