“Limb” is another name for the arms or legs. Sometimes a child can have a difference in the way their arms or legs are shaped. For example, their legs may be curved or one might be shorter than the other. Or, a bone in the arm may be short or missing. At Nemours, our pediatric orthopedic surgeons are experts at diagnosing and treating limb and bone length differences. We’ll recommend the best treatment for your child and help you understand what to expect every step of the way.