| Decreased disk-eminence ratio is associated with advanced stages of temporomandibular joint internal derangement. | |
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MedLine Citation:
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PMID: 10490749 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To examine the possible correlation between the stage of internal derangement and the antero-posterior length of the disk in relation to the length of the articular eminence. STUDY DESIGN: Twenty asymptomatic volunteers with normal joints and 120 patients with TMJ dysfunction underwent MR imaging. The A-P length of the disk in relation to the length of the articular eminence (D/E ratio) was measured. RESULTS: The D/E ratio was 0.95 in the asymptomatic volunteers, 0.83 in patients with disk displacement with reduction, 0.74 in those with disk displacement without reduction and 0.57 in the patients with disk displacement and osteoarthritis. The relationship between the D/E ratio and the stage of internal derangement was statistically significant (P<0.01). CONCLUSION: The D/E ratio decreases with advancing internal derangement. We suggest that it is a reliable numerical method for staging the degree of the internal derangement. |
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Authors:
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M Toyama; K Kurita; P L Westesson; S Sakuma; E Ariji; R Rivera |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Dento maxillo facial radiology Volume: 28 ISSN: 0250-832X ISO Abbreviation: Dentomaxillofac Radiol Publication Date: 1999 Sep |
Date Detail:
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Created Date: 2000-07-05 Completed Date: 2000-07-05 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7609576 Medline TA: Dentomaxillofac Radiol Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 301-4 Citation Subset: D |
Affiliation:
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The Second Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Analysis of Variance Case-Control Studies Dislocations / pathology* Female Humans Magnetic Resonance Imaging Male Observer Variation Osteoarthritis / pathology Severity of Illness Index Temporomandibular Joint / pathology* Temporomandibular Joint Disk / pathology Temporomandibular Joint Disorders / pathology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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