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Combined first dorsal metacarpal artery flap and dorsal transposition flap for correction of extensive first web space contracture: a case report and literature review.

First web space contracture is a common sequela after hand trauma and exerts tremendously negative effects on hand function. To restore hand function, it is mandatory to release contracted first web structures, which usually results in a large skin defect. Dorsal transposition flaps sometimes are not sufficient to cover the whole defect. Microvascular flaps provide abundant soft tissue, but they are lengthy procedures and exhibit risks of complete flap failure. In this study, we present an alternative approach to address this difficult clinical problem. A 25-year-old man developed extensive contracture over the first web space after trauma. After release of the contracted structures, the extensive skin defect was covered by a dorsal transposition flap with an extension to the territory of the first dorsal metacarpal artery flap. The functional and cosmetic results were excellent, without recurrence of contracture postoperatively. The combined first dorsal metacarpal artery flap and dorsal transposition flap appeared to be an effective and relatively simple method for the reconstruction of severe first web space contracture.