title: [Dynamic palmar instability of the ulnar head].
abstract: Despite obvious clinical symptoms, dynamic, palmar instability of the ulnar head remains a diagnostic and therapeutic problem. This is demonstrated by a case of chronic, palmar instability of the ulnar head after a tear of the triangular fibrocartilage complex (TFCC). A concomitant, minimal dorsal angulation of the radius after a fracture in childhood and a general capsulo-ligamentous laxity possibly were predisposing factors. Aspects of diagnostic and therapeutic options are discussed. In our case, due to secondary arthrosis, an arthrodesis of the distal radioulnar joint combined with a stabilization of the TFCC was opted for. Although the patient is painfree and mobile, she complains of a loss of power in supination. This salvage procedure probably could have been avoided by an earlier diagnosis.
authors.affiliation: Orthopädische Klinik der Ludwig-Maximilians-Universität München, Germany. christoph.schulz@helios.med.uni-muenchen.de
authors.forename: C U
authors.initials: CU
authors.lastname: Schulz
authors.forename: C
authors.initials: C
authors.lastname: Pellengahr
authors.forename: H
authors.initials: H
authors.lastname: Anetzberger
mesh_terms: D000328:Adult; D001174:Arthrodesis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D011859:Radiography; D013484:Supination / Q000502:physiology; D013997:Time Factors; D014457:Ulna / Q000000981:diagnostic imaging; D014954:Wrist Injuries / Q000150:complications*; D014955:Wrist Joint / Q000000981:diagnostic imaging / Q000601:surgery
vernacular_title: Die dynamische, palmare Ellenkopfinstabilität - Ein Fallbericht -