Assessment and prediction in leg-length discrepancy.

Successful treatment of patients with leg-length discrepancy requires rigorous assessment of the patient, usually over a period of time. This assessment involves not only the lengths of the legs, but all the factors that contribute to the asymmetry because they are all important in the selection of a treatment goal. Good results can be obtained with any of the three methods of prediction. Selection of a particular method must be based on convenience, accuracy, and user familiarity.