| Osteochondritis dissecans of the knee in children. A comparison of MRI and arthroscopic findings. | |
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MedLine Citation:
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PMID: 11922369 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The treatment of osteochondritis dissecans (OCD) in children and adolescents is determined by the stability of the lesion and the state of the overlying cartilage. MRI has been advocated as an accurate way of assessing and staging such lesions. Our aim was to determine if MRI scans accurately predicted the subsequent arthroscopic findings in adolescents with OCD of the knee. Some authors have suggested that a high signal line behind a fragment on the T2-weighted image indicates the presence of synovial fluid and is a sign of an unstable lesion. More recent reports have suggested that this high signal line is due to the presence of vascular granulation tissue and may represent a healing reaction. We were able to improve the accuracy of MRI for staging the OCD lesion from 45% to 85% by interpreting the high signal T2 line as a predictor of instability only when it was accompanied by a breach in the cartilage on the T1-weighted image. We conclude that MRI can be used to stage OCD lesions accurately and that a high signal line behind the OCD fragment does not always indicate instability. We recommend the use of an MRI classification system which correlates with the arthroscopic findings. |
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Authors:
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M A O'Connor; M Palaniappan; N Khan; C E Bruce |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: The Journal of bone and joint surgery. British volume Volume: 84 ISSN: 0301-620X ISO Abbreviation: J Bone Joint Surg Br Publication Date: 2002 Mar |
Date Detail:
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Created Date: 2002-03-29 Completed Date: 2002-04-16 Revised Date: 2010-11-10 |
Medline Journal Info:
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Nlm Unique ID: 0375355 Medline TA: J Bone Joint Surg Br Country: England |
Other Details:
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Languages: eng Pagination: 258-62 Citation Subset: AIM; IM |
Affiliation:
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Royal Liverpool Children's Hospital, Alder Hey, England, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Arthroscopy* Child Female Humans Knee Joint* Magnetic Resonance Imaging* Male Osteochondritis Dissecans / diagnosis* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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