guided growth for the treatment of a moderate leg-length discrepancy is a safe and efficacious technique with minimal complications. The advantages of this technique are that it is reversible, the plate and screws are easy to remove, and little chance exists that the screw will be pushed into the bone cortex. The disadvantages are that it is expensive compared with a single screw and a slightly larger incision is needed. Surgeons should start earlier with this technique, adding at least 1 year to the calculation for a technique that causes physeal closure. In addition, epiphysiodesis of the femur is preferred to the tibia because it is more predictable.