title: Sigmoid notch osteotomy for posttraumatic dorsal dislocation of the distal radioulnar joint: A case report.
abstract: Instability of the distal radioulnar joint (DRUJ) is associated most commonly with injury to the soft-tissue restraints of that joint, particularly the triangular fibrocartilage complex. The dorsal rim of the sigmoid notch, however, also plays an important role as a bony restraint to dorsal subluxation. We report a case of posttraumatic dorsal dislocation of the DRUJ associated with a depressed fracture of the dorsal rim of the sigmoid notch. This was treated with soft-tissue release and corrective osteotomy of the dorsal rim of the sigmoid notch to restore DRUJ stability and congruency.
authors.affiliation: Victorian Hand Surgery Associates, Melbourne, Australia. stham@bigpond.net.au
authors.forename: James
authors.initials: J
authors.lastname: Thomas
authors.forename: Richard
authors.initials: R
authors.lastname: Large
authors.forename: Stephen K Y
authors.initials: SK
authors.lastname: Tham
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology / Q000601:surgery*; D007593:Joint Instability / Q000209:etiology / Q000601:surgery; D010027:Osteotomy / Q000379:methods*; D011885:Radius Fractures / Q000150:complications*; D012865:Skiing / Q000293:injuries; D014955:Wrist Joint / Q000601:surgery*