Forearm rebalancing in osteochondromatosis by radioulnar fusion.

Options for treatment of a skeletally immature child with forearm involvement from osteochondromatosis vary widely from natural history observation through ulnar distraction lengthening in combination radial and ulnar osteotomies. An important factor in surgical indications is the status of the radial head. In the presence of a radial head dislocation, particularly in a very young child, radioulnar diaphyseal fusion (single-bone forearm) is a viable surgical option. It restores axial alignment, corrects proximal and distal radioulnar joint dislocations by resection, maintains forearm growth through the distal radius, and provides a stable elbow with a restoration of motion in a single-stage procedure.