Resection interposition arthroplasty of calcaneonavicular coalition using a lateral supramalleolar adipofascial flap:...

Space after the resection of calcaneonavicular coalition has been interposed by fat graft or the extensor digitorum brevis muscle. Nonvascularity of fat graft and insufficient volume of the extensor digitorum brevis muscle cause regrowth of the coalition. A pedicled lateral supramalleolar adipofascial flap was interposed into the space created by resection of the calcaneonavicular bar in the case of a 10-year-old boy. Regrowth of the coalition was successfully prevented by sufficient volume of the vascularized fatty tissue. The range of motion of the affected right ankle joint was similar to that of the unaffected side at 32 months postoperatively.