title: Abnormal geometry of the distal radioulnar joint: MR findings.
abstract: Previously developed criteria of normal distal radioulnar joint (DRUJ) axial geometry were applied to routine magnetic resonance (MR) images of 50 wrists. All wrists lacked clinically evident DRUJ instability. An attempt to apply the three geometric criteria to seven of the cases was not possible, since the prescribed landmarks were not visible. The remaining 43 cases were retrospectively divided into a symptomatic group (25 wrists), with clinical abnormalities referable to the ulnar side of the wrist, and an asymptomatic group (18 wrists), with no such abnormalities. Abnormal DRUJ geometry was found in 12 symptomatic and 2 asymptomatic wrists. This difference between the groups is significant (p = 0.02), suggesting that many symptomatic wrists exhibit different DRUJ geometry than is found in most asymptomatic wrists.
authors.affiliation: Department of Radiology, Columbia-Presbyterian Medical Center, New York, New York 10032.
authors.forename: R B
authors.initials: RB
authors.lastname: Staron
authors.forename: F
authors.initials: F
authors.lastname: Feldman
authors.forename: N
authors.initials: N
authors.lastname: Haramati
authors.forename: R D
authors.initials: RD
authors.lastname: Singson
authors.forename: M
authors.initials: M
authors.lastname: Rosenwasser
authors.forename: P D
authors.initials: PD
authors.lastname: Esser
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002348:Carpal Bones / Q000293:injuries; D005260:Female; D050723:Fractures, Bone / Q000175:diagnosis; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis; D007593:Joint Instability / Q000175:diagnosis; D008023:Ligaments, Articular / Q000293:injuries; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011403:Pronation; D011884:Radius / Q000473:pathology*; D012189:Retrospective Studies; D013484:Supination; D013581:Synovial Cyst / Q000175:diagnosis; D013710:Tendons / Q000473:pathology; D014457:Ulna / Q000473:pathology*; D014955:Wrist Joint / Q000473:pathology*