title: [Fracture of the triquetrum. Pathomechanics, classification, treatment and results within the scope of follow-up].
abstract: In 231 patients, 65 underwent a follow-up control after a mean interval of 46.8 months. Fractures of the triquetrum are classified, considerations on the pathomechanism are explained, and the clinical and radiological outcome are evaluated. In case of a fall to the extended and ulnar deviated wrist, chip fractures of the triquetrum are caused by the chisel-like effect of the dorsoproximal edge of the hamate. Our mode of conservative treatment with immobilisation for three weeks has proven successful. Healing of the bony fragment occurs not before six to eight weeks. Surgical treatment was never indicated. A posttraumatic instability of the wrist was not observed. On the basis of good vascularisation, avascular necrosis of the triquetrum is not to be feared. All fractures of the body of the triquetrum resulted in osseous consolidation.
authors.affiliation: Unfallkrankenhaus Wien-Meidling, AUVA.
authors.forename: K
authors.initials: K
authors.lastname: Höcker
authors.forename: A
authors.initials: A
authors.lastname: Menschik
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002348:Carpal Bones / Q000293:injuries*; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D017102:Fracture Healing / Q000502:physiology; D050723:Fractures, Bone / Q000145:classification / Q000209:etiology / Q000628:therapy*; D006801:Humans; D007103:Immobilization; D004204:Joint Dislocations / Q000145:classification / Q000209:etiology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D014954:Wrist Injuries / Q000145:classification / Q000209:etiology / Q000628:therapy*
vernacular_title: Die Triquetrumfraktur. Pathomechanik, Klassifikation, Behandlung und Ergebnisse im Rahmen einer Nachuntersuchung.