Congenital Femoral Deficiency
"CFD" represents a spectrum of congenital defects around the femur bone, the hip joint above, the knee joint below, and the muscles that cross the hip joint. The main feature of this congenital disorder is that the femur bone is short. In most children, not only is the femur bone severely shortened, but the hip joint is affected to some degree. In some cases, a hip joint may never form at all.
CFD may be associated with other limb deficiency abnormalities, with the most common one being a fibula hemimelia. Except when associated with very rare genetic defects, children with CFD are often very healthy and have normal intelligence. They can essentially lead normal lives.
The goal of CFD treatment is similar to any child with a large difference in limb lengths - to have the limbs be as close to even in length as possible by the time your child is fully grown. The reason for this objective is to minimize future pain and maximize potential function. The type of CFD treatment is essentially based on two main factors – how short is the one femur bone projected to be compared to the other side, and how severely involved is the hip joint. If the femur bone is not projected to be too severely short compared to the other side, and the hip and knee are in good condition, your physician may recommend a lengthening-type surgery in the future. Please review the limb lengthening section on further details of this type of surgery. If the femur bone is determined to be too short to lengthen and/or the hip joint is not present, you physician may recommend other surgical options to allow your child to fit into a prosthesis better.