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Scapholunate Dissociation Associated with Intra-articular Fractures of Distal Radius
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Bon Seop Koo, Kyung Chul Kim, Hun Kyu Shin, Jin Heon Kwak
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J Korean Soc Fract 2001;14(4):733-738. Published online October 31, 2001
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DOI: https://doi.org/10.12671/jksf.2001.14.4.733
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 Abstract
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- PURPOSE
The purpose of this study was to evaluate the risk factors in the occurrence of scapholunate dissociation in relation to the intra-articular fracture of distal radius.
MATERIALS AND METHODS
We performed a retrospective evaluation of 170 cases of the fractures. Average age was 52 years(range, 24-85 years). We reviewed both medical records and radiographic films and analyzed the data according to age, width of the medullary cavity of the third metacarpal bone and fracture morphology.
RESULTS
Nine cases(5.3%) of scapholunate dissociation, mean age of 56 years, all had widened medullary cavity, radial styloid process fracture with radial displacement, a vertical fracture line invading articular surface, depression of scaphoid facet(6 cases) and lunate facet(3 cases). Degree of fracture displacement was not significant.
CONCLUSION
In distal radius intra-articular fracture which occurred in old patient with widened metacarpal medulla and had a radially displaced radial styloid fracture, an articular surface involving vertical fracture line and a depression of scaphoid or lunate facet, we should be careful in the concurrence of scapholunate dissociation.
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