During a five-year period, 15 patients with defects or pseudarthroses of the forearm bones were operated on. All had previously undergone one to six conventional operations. A vascularised fibular graft was used in ten cases, a radial graft in three cases and a humeral graft in two cases. Bone graft viability and healing were assessed clinically and patients have been observed for seven months to five years. 14 patients have finished treatment: 13 were cured and only two repeat osteosyntheses were required. In one case there was resorption of the central part of the fibular graft. Primary bony union was achieved in three to six months. Care must be taken in precise pre-operative assessment of the state of the forearm arteries. We advocate wider usage of vascularised radial and humeral grafts.