| Bone marrow edema of the mandibular condyle related to internal derangement, osteoarthrosis, and joint effusion. | |
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MedLine Citation:
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PMID: 12524605 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purpose of this prospective study was to evaluate whether common magnetic resonance imaging (MRI) variables such as temporomandibular joint (TMJ) internal derangement, osteoarthrosis, and effusion may predict the diagnostic group of bone marrow edema of the mandibular condyle. MATERIALS AND METHODS: The relationship between bone marrow edema and TMJ disc displacement, osteoarthrosis, and effusion was analyzed in MRIs of 120 TMJs in 73 consecutive patients with TMJ pain and/or a clinical diagnosis of TMJ internal derangement type III (disc displacement without reduction). The diagnostic bone marrow edema group was comprised of 54 TMJs in 40 patients with a unilateral or bilateral MRI diagnosis of bone marrow edema. The control group consisted of 66 non-bone marrow edema TMJs in 33 patients with a bilateral MRI finding of an absence of bone marrow edema. A logistic regression analysis was used to compute the odds ratios for internal derangement, osteoarthrosis, and effusion for non-bone marrow edema TMJs (n = 66) versus TMJs with bone marrow edema (n = 54). RESULTS: Using Chi;(2) analysis for pair-wise comparison, the TMJ-related data showed a significant relationship between the MR imaging findings of TMJ bone marrow edema and those of internal derangement (P = .000), osteoarthrosis (P = .000), and effusion (P = .010). Of the MRI variables considered simultaneously in the multiple logistic regression analysis, osteoarthrosis (P = .107) and effusion (P = .102) dropped out as nonsignificant in the diagnostic bone marrow edema group when compared with the control group. The odds ratio for individuals with an internal derangement showing bone marrow edema was strong (3.6:1) and highly significant (P = .000). Significant increases in risk of bone marrow edema occurred with disc displacement without reduction and osteoarthrosis (9.2:1) (P = .000) and disc displacement without reduction and effusion (6.4:1) (P = .002). CONCLUSIONS: The results suggest that the MR imaging findings for TMJ bone marrow edema are related to those of internal derangement, osteoarthrosis, and effusion. However, the data re-emphasize the aspect that internal derangement, osteoarthrosis, and effusion may not be regarded as the unique and dominant factors in defining TMJ bone marrow edema instances. |
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Authors:
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Rüdiger Emshoff; Iris Brandlmaier; Christoph Schmid; Stefan Bertram; Ansgar Rudisch |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons Volume: 61 ISSN: 0278-2391 ISO Abbreviation: J. Oral Maxillofac. Surg. Publication Date: 2003 Jan |
Date Detail:
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Created Date: 2003-01-13 Completed Date: 2003-01-29 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8206428 Medline TA: J Oral Maxillofac Surg Country: United States |
Other Details:
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Languages: eng Pagination: 35-40 Citation Subset: AIM; D; IM |
Copyright Information:
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Copyright 2003 American Association of Oral and Maxillofacial Surgeons |
Affiliation:
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Department of Oral and Maxillofacial Surgery, University of Innsbruck, Innsbruck, Austria. Ruediger_Emshoff@hotmail.com |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Analysis of Variance Bone Marrow Diseases / complications*, physiopathology Chi-Square Distribution Dislocations / complications*, physiopathology Edema / complications*, physiopathology Female Humans Logistic Models Magnetic Resonance Imaging Male Mandibular Condyle / pathology* Mandibular Diseases / complications, physiopathology Matched-Pair Analysis Middle Aged Odds Ratio Osteoarthritis / complications*, physiopathology Prospective Studies Risk Factors Synovial Fluid / physiology* Temporomandibular Joint Disk / pathology* Temporomandibular Joint Disorders / complications*, physiopathology |
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