ABSTRACT
The term proximal femoral focal deficiency (PFFD) covers a broad range of defects in which there is a deficient proximal femur and hip instability. The incidence is 1 per 50 000 live births. The child presents at birth with a short limb or limbs with a tendency to lie with the affected leg abducted and externally rotated. Most of those affected have other associated anomalies (e.g. fibular hemimelia, clubfoot, or cardiac, spinal and facial anomalies).
