<unk>  <unk> , also known as Congenital<unk><unk>  (CFD), is a rare, non-hereditary birth defect that affects the pelvis, particularly the hip bone, and the<unk>  femur. The disorder may affect one side or both, with the hip being deformed and the leg shortened. It is commonly linked with the absence or shortening of a leg bone (fibular hemimelia) and the absence of a kneecap. Other linked birth defects include the dislocation or instability of the joint between the femur and the kneecap, a shortened tibia or fibula, and foot deformities.
Proximal femoral focal deficiency
Bipartite patella
Luxating patella
Tarsal coalition
Radial dysplasia
Ankle fusion
Attenuated patella alta
Plantar calcaneal bursitis