title: Shoulder impingement syndrome: diagnostic accuracy of magnetic resonance imaging and radiographic signs.
abstract: Shoulder impingement syndrome is commonly encountered in orthopaedics. In a blinded retrospective study, magnetic resonance imaging and roentgenographic signs in 41 patients with clinical signs of impingement syndrome were compared with 40 control patients. Statistically significant differences between the groups included the absence of subarcromial fat, as well as the presence of a supraspinatus tear, subacromial osteophytes, and a decreased coracohumeral distance. Other signs reported to occur in patients with impingement syndrome did not vary significantly in the population studied.
authors.affiliation: Department of Radiology, Tripler Army Medical Center, Honolulu, Hawaii 96859-5000.
authors.forename: M P
authors.initials: MP
authors.lastname: Williamson
authors.forename: V P
authors.initials: VP
authors.lastname: Chandnani
authors.forename: D E
authors.initials: DE
authors.lastname: Baird
authors.forename: T Q
authors.initials: TQ
authors.lastname: Reeves
authors.forename: T M
authors.initials: TM
authors.lastname: Deberardino
authors.forename: G W
authors.initials: GW
authors.lastname: Swenson
authors.forename: M F
authors.initials: MF
authors.lastname: Hansen
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D007593:Joint Instability / Q000175:diagnosis / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000473:pathology*