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Wire-loop fixation of volar displaced osteochondral fractures of the distal radius.

We describe the technique of wire-loop fixation to treat 4 young men with a unique variant of Melone's type 4 articular fracture of the volar lunate facet, characterized by a displaced rotated articular fragment supported by a limited amount of subchondral bone. This is an unusual injury that threatens the integrity of both the radiocarpal and distal radioulnar joints. It is the result of a compressive force to the wrist and may require trispiral computed tomography for delineation. Open reduction and internal fixation is recommended to maintain stability and articular congruity. The displaced volar-articular fragment, however, may be relatively small; therefore, direct manipulation could lead to soft tissue stripping and osteonecrosis. We have found the technique of wire-loop fixation to be a simple, reproducible, and effective alternative method of internal fixation for these difficult fractures. Malunion, nonunion, loss of fixation, tendon rupture, infection, arthrosis, or pain caused by hardware has not occurred. Use of this technique is not recommended in patients with osteoporotic bone.