Closing wedge osteotomy is an accepted technique for correcting bony malalignment. This study reports the results of a novel osteotomy technique used in children's hands. Excision of a partial wedge generates a 'greenstick' type of fracture which can then be reduced and stabilised using only intraosseous wires. Eight consecutive patients who underwent surgery of this type between March 2003 and January 2008 were reviewed retrospectively. Union was obtained in all cases and there was good bone alignment and range of movement. No significant technique-related complications were encountered. This approach is a simple and effective way of correcting malalignment in the small bones of children's hands.