Abstract
Six children with radial club hand had distraction lengthening of the ulna using the Ilizarov technique at the mean age of 10 years. The mean lengthening achieved was 4.7 cm (46% of original ulna length). Complications included nocturnal pain, pin track infection and callus fracture or delayed union. Distraction lengthening of the ulna can enhance the ability to perform normal activities of daily living, such as reaching the perineum or driving a car, but complications are extremely common. The high rate of callus fracture in this series reinforces the need for regular radiographic review during distraction and suggests that after distraction it may take more than 4 weeks for satisfactory callus consolidation before removal of the fixator.
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