Scaphoid fracture and scaphoid pseudarthrosis.

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Abstract

5. Unfallchirurg. 2000 Oct;103(10):812-9. doi: 10.1007/s001130050626. [Scaphoid fractures--diagnosis, classification and therapy]. [Article in German] Krimmer H(1), Schmitt R, Herbert T. Author information: (1)Klinik für Handchirurgie, Rhönklinikum, Bad Neustadt Saale. kfh1.krimmer@handchirurgie.de Herbert's classification of scaphoid fractures provides the underlying rationale for treatment according to the fracture type. A CT bone scan in the long axis of the scaphoid is the best means of differentiating between stable and unstable fractures. This is difficult from conventional X-rays due to the particular three-dimensional anatomy of the scaphoid. To avoid long-term plaster immobilization and to diminish the risk of a nonunion, unstable fractures of type B should be fixed operatively. With headless screws such as the Herbert screw, which are now available in a cannulated shape, the majority of scaphoid fractures of type B1 and B2 can be stabilized using minimally invasive procedures. Severely displaced fractures require the classical open palmar approach. Proximal pole fractures (B3) are best managed from the dorsal approach, using the Mini-Herbert screw. Stable fractures of type A2 can be treated conservatively in a below-elbow cast or, alternatively, stabilized percutaneously, which allows early mobilization. DOI: 10.1007/s001130050626