Fig. 12.

Postoperative x-rays depicting the different corrective steps after mounting of the ring fixator and performing the osteotomies of both forearms. a A pure fine-wired Ilizarov fixator is used: in the proximal ring only the ulna is fixated, in the midshaft, only the radius and distal again only the ulna to achieve both correction and relocation of the radial head. b Gradual correction of the deformity of the radius and ulna between middle and distal forearm rings. c In a second step the ulna is lenghtened by callus distraction between the proximal and middle ring. The radial head reduces when lengthening of the ulna is sufficient