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Complex Articular Fractures of the Distal Radius: Classification and Management

Harvard Medical School, and Orthopaedic Hand Service, Massachusetts General Hospital, Boston.

Articular fractures of the distal radius require an anatomic reduction, as even minimal step-offs are associated with the development of osteoarthritis. Such fractures are classified on the basis of both the mechanism and the pattern of injury. The comprehensive classification of fractures established by Muller et al defines those occurring from a shearing mechanism and involving part of the articular surface as type B fractures. These are in turn subdivided into group B1 fractures, which involve the radial styloid (chauffeur's fracture); group B2, which involve the dorsal margin of the radius; and group B3, which involve the volar margin of the distal radius (Barton's fracture). Type B fractures are unstable and often require operative intervention. Articular fractures resulting from a compression force on the end of the radius are classified as type C. A group C1 fracture is a two-part fracture without metaphyseal comminution; group C2, a two-part fracture with metaphyseal comminution; group C3, a fracture with more than two pieces, with or without comminution. The operative tactic for compression fractures involves restoration of the four common fragments in sequence. This can often be accomplished by manipulative means alone or with limited exposure of the fracture fragments and stabilization with percutaneous Kirschner wires. Neutralization with an external fixator and use of an autogenous bone graft are often required.

This article has been cited by other articles:

				A. D. Nana, A. Joshi, and D. M. Lichtman Plating of the Distal Radius J. Am. Acad. Ortho. Surg., May 1, 2005; 13(3): 159 - 171. [Abstract] [Full Text] [PDF]