| Summary: | Arthrodesis is a reliable surgical procedure for treating thumb carpometacarpal osteoarthritis. However, the most frequent and problematic complication of arthrodesis is nonunion. Although postarthrodesis-related nonunion is a common complication, the indications and results of revision procedures for this pathological condition have not been well documented. A 59-year-old man underwent arthrodesis for thumb carpometacarpal osteoarthritis, which resulted in painful nonunion 7 months after the surgery. We performed revision surgery for this pathological condition, using first dorsal metacarpal artery-pedicled second metacarpal vascularized bone graft. This method resulted in successful bone union and pain relief. First dorsal metacarpal artery-pedicled second metacarpal vascularized bone grafting could be an alternative method for nonunion, which is a common complication after thumb carpometacarpal arthrodesis.
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