We have freated 12 adolescent patients with idiopathic tibia vara by asymmetrical physeal disfraction using a modified Wagner external fixator. There were no major complications and a mean correction of 13#{176} was achieved. The main advantages of the technique are that no osteotomy, internal fixation or bone graft is needed, and that the operation can be performed on both tibiae simultaneously. No shortening is produced and lengthening can be added to angular correction if required.
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