| How Should the Articular Disk Position Be Analyzed? | |
| | |
MedLine Citation:
|
PMID: 22079066 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
PURPOSE: To compare 2 methods used to determine the disk position based on sagittal magnetic resonance images. PATIENTS AND METHODS: A cross-sectional study of patients with the signs and symptoms of temporomandibular disorders was conducted. The patients' ages and gender distributions were collected. The disk position diagnosis from the clinical examination was considered the primary outcome. Three observers evaluated the presence of anterior displacement on magnetic resonance images according to 2 criteria: method 1 (12-o'clock position) and method 2 (location of the intermediate zone). To assess the intraobserver variability of the 2 methods, the examiners evaluated the same magnetic resonance images at the beginning of the study (time 1) and 40 days later (time 2). The intraobserver agreement was assessed using the observed agreement and the kappa statistic. McNemar's test was used to assess the differences between each method and the clinical examination findings (P < .05). The accuracy, sensitivity, specificity, and positive and negative predictive values were calculated by comparing the diagnosis from each method with that from the clinical examination (considered the reference standard). RESULTS: The final sample was composed of 20 subjects with a mean age of 33.0 ± 33.7 years; 3 were men (15%) and 17 were women (85%). A statistically significant difference between the 2 methods was found. Method 1 yielded a greater percentage of anterior displaced disks (52.5%). The agreement between the clinical diagnosis and method 1 was lower (70.0%) than that between the clinical diagnosis and method 2 (87.5%). No statistically significant difference was found between the clinical diagnosis and method 2. CONCLUSION: The disk position should be judged according to the intermediate zone criterion. |
| | |
Authors:
|
Marcia de Mello Provenzano; Israel Chilvarquer; Marlene Fenyo-Pereira |
Related Documents
:
|
18189156 - Real-time magnetic resonance imaging driven by electromagnetic locator for intervention... 1927626 - Development of the operating computerized tomographic scanner system for neurosurgery. 12296336 - Comparison of various methods of electromyographic monitoring of the recurrent laryngea... 21940586 - Alterations of the transverse ligament: an mri study comparing patients with acute whip... 17090606 - Measurement of vascular calcification using ct fistulograms. 11081166 - Transsphenoidal resection of pituitary adenomas in an intraoperative mri unit. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-11-10 |
Journal Detail:
|
Title: Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons Volume: - ISSN: 1531-5053 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
|
Created Date: 2011-11-14 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8206428 Medline TA: J Oral Maxillofac Surg Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved. |
Affiliation:
|
PhD Student, Department of Stomatology, School of Dentistry, University of São Paulo, Brazil. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Clinical Significance of Computed Tomographic Assessment and Anatomic Features of the Inferior Alveo...
Next Document: Streptococci-Human Papilloma Virus Interaction With Ethanol Exposure Leads to Keratinocyte Damage.