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A rare combination: locked volar distal radio-ulnar joint dislocation with isolated volar capsule rupture
Chris Yuk Kwan Tang1, Jason Pui Yin Cheung, Boris Fung
1Department of Orthopaedics and Traumatology, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong.
Abstract:
Distal Radioulnar Joint (DRUJ) dislocation is a commonly missed injury. A high clinical suspicion is required as the dislocation may not be obvious in the conventional views of radiographs. Volar DRUJ dislocations are far less common than the dorsal ones. Since triangular fibrocartilage complex (TFCC) is the major stabilizer of DRUJ, it is common that the irreducible DRUJ dislocation is associated with TFCC tear. We report a patient who had irreducible volar DRUJ dislocation blocked by the volar lip of sigmoid notch, with only isolated volar capsule rupture.
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