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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com, https://plus.google.com/communities/115462130054650919641?sqinv=VFJWaER0c2NCRl9ERzRjZWhxQmhzY09kVV84cjRn , ,https://plus.google.com/u/0/+AlexandrosGSfakianakis , https://www.youtube.com/channel/UCQH21WX8Qn5YSTKrlJ3OrmQ , https://www.youtube.com/channel/UCTREJHxB6yt4Gaqs4-mLzDA , https://twitter.com/g_orl?lang=el, https://www.instagram.com/alexandrossfakianakis/,

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Τρίτη, 6 Μαρτίου 2018

A nomogram for classification of temporomandibular joint disc perforation based on magnetic resonance imaging

Publication date: Available online 6 March 2018
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Jae-Young Kim, Kug-Jin Jeon, Myeong-Gyun Kim, Kwang-Ho Park, Jong-Ki Huh
ObjectiveTo analyze risk factors and establish a prediction model for temporomandibular joint (TMJ) disc perforation with a nomogram.Study DesignThe study included a total of 282 joints in 274 patients. All patients underwent open temporomandibular joint surgery after obtaining magnetic resonance imaging (MRI) from 2005 to 2015. The presence or absence of disc perforation was confirmed during the operation. Patients were classified into two groups: perforation and non-perforation. We investigated demographic data and characteristics of disc, joint space, and bone on MRI. A logistic regression analysis was performed to analyze risk factors. A nomogram was constructed and validated internally and externally.ResultsRisk factors for disc perforation were increased age, disc shape (eyeglass or amorphous), low BMS, abnormal joint space, and 2 or more bony changes in the condyle and fossa. The area under the receiver operating characteristic (ROC) curve (AUC) of the nomogram was 0.908 (95% confidence interval [CI], 0.869–0.946) in the internal validation and 0.889 (95% CI, 0.804–0.973) in the external validation with good suitability.ConclusionWe were able to predict the probability of disc perforation with analyzed risk factors and constructed a nomogram, which may aid in proper diagnosis and treatment.



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