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- Trygve Holm Glad, Knut Melhuus, and Svein Svenningsen.
- Ortopedisk avdeling, Sørlandet sykehus Arendal, Serviceboks 605, 4809 Arendal, Norway. trygve.holm.glad@sshf.no
- Tidsskr. Nor. Laegeforen. 2010 Apr 22;130(8):825-8.
BackgroundOslo accident and emergency clinic (Oslo skadelegevakt) treats most scaphoid fractures in Oslo. The objectives of this study were to assess the usefulness of MRI in diagnosing such fractures and to determine the number of scaphoid fractures treated at our clinic, the number of patients treated with a scaphoid cast without having a fracture, the proportion of these fractures diagnosed with conventional radiographs and that diagnosed with MRI in a given period.Material And MethodsThe article is based on a review of medical records from all patients who had taken scaphoid radiographs at Oslo accident and emergency clinic in the period 1 July 2005 - 30 June 2006.Results532 patients had their forearm immobilized in a scaphoid cast because of a clinically suspected scaphoid fracture or a diagnosed fracture. 154 of these (29 %) had a scaphoid fracture; 88 (57 %) of them were diagnosed by using conventional radiographs at the first consultation, 8 (5 %) were diagnosed at a second radiographic examination (after 1 to 2 weeks) and 58 (38 %) by use of MRI at a control visit. At the control visit 228 patients were referred to MRI; 91 (40 %) of them had a fracture (58 [25 %] had a scaphoid fracture and 33 [14 %] had other fractures). In children 10 - 14 years of age MRI was used to diagnose 22 of 26 scaphoid fractures.InterpretationThree of four patients treated with a scaphoid cast due to a suspected scaphoid fracture had no fracture. Early MRI can reduce the time of immobilization for patients without fracture. Use of MRI to diagnose scaphoid fractures probably leads to treatment of some fractures that would heal without immobilization, especially in children who constituted the group most often diagnosed by MRI.
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