Femoral bifurcation with tibial aplasia. A case report and review of the literatures.

An extremely rare femoral bifurcation in combination with ipsilateral tibial aplasia, lumbosacral myelomeningocele, anomalies of hand and feet occurred in a premature infant. Review of the pertinent literature suggests that femoral bifurcation usually occurs in association with ipsilateral tibial aplasia. The pathogenesis of this rare congenital anomaly may be associated with an ectopic tibial anlage in the femur and insertions of disorganized muscles.