Proximal Focal Femoral Deficiency

  • Etiology: Congenital defect in cartilage anlage of proximal femur
  • Imaging Radiograph: Hypoplasia or absence of femoral head and femoral shaft with or without acetabular dysmorphology leading to femur being short
  • DDX:
  • Complications:
  • Treatment:
  • Clinical: Associated with congenital coxa vara, absence of the patella, congenital knee ligamentous laxity or contracture, fibular hemimelia

Radiology Cases of Proximal Focal Femoral Deficiency

Radiograph of proximal focal femoral deficiency
Radiograph of the lower extremities shows an absent right femur and a deformity of the left femur.
Radiograph of proximal focal femoral deficiency
AP radiograph of the right femur (left) shows the right femoral head and right femoral shaft are hypoplastic in appearance. AP radiograph of the pelvis (right) shows the difference in length between the femurs.