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

 Jae-Young Kim  ;  Kug-Jin Jeon  ;  Myeong-Gyun Kim  ;  Kwang-Ho Park  ;  Jong-Ki Huh 
 Oral Surgery Oral Medicine Oral Pathology Oral Radiology, Vol.125(6) : 682-692, 2018 
Journal Title
 Oral Surgery Oral Medicine Oral Pathology Oral Radiology 
Issue Date
OBJECTIVE: The aim of this study was to analyze risk factors and establish a prediction model for temporomandibular joint (TMJ) disk perforation by constructing a nomogram. STUDY DESIGN: The study included a total of 282 joints in 274 patients. All patients underwent open TMJ surgery after obtaining magnetic resonance imaging (MRI), from 2005 to 2015. The presence or absence of disk perforation was confirmed during the operation. Patients were classified into 2 groups: perforation and nonperforation groups. We investigated demographic data and the characteristics of the disk, 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. RESULTS: Risk factors for disk perforation were increased age, disk shape (eyeglass or amorphous), low bone marrow signal, abnormal joint space, and 2 or more bony changes in the condyle and fossa. The area under the receiver operating characteristic curve 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. CONCLUSIONS: We were able to predict the probability of disk perforation with analyzed risk factors and constructed a nomogram, which may be helpful in proper diagnosis and treatment.
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2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Radiology (영상치의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myeong-Gyun(김명균)
Kim, Jae Young(김재영) ORCID logo https://orcid.org/0000-0002-9423-438X
Park, Kwang Ho(박광호) ORCID logo https://orcid.org/0000-0003-1942-2986
Jeon, Kug Jin(전국진) ORCID logo https://orcid.org/0000-0002-5862-2975
Huh, Jong Ki(허종기) ORCID logo https://orcid.org/0000-0002-7381-3972
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