Comparison of T2 values of the displaced unilateral disc and retrodiscal tissue of temporomandibular joints and their implications
Issued Date
2024-12-01
Resource Type
eISSN
20452322
Scopus ID
2-s2.0-85182710494
Pubmed ID
38242921
Journal Title
Scientific Reports
Volume
14
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Scientific Reports Vol.14 No.1 (2024)
Suggested Citation
Kakimoto N., Wongratwanich P., Shimamoto H., Kitisubkanchana J., Tsujimoto T., Shimabukuro K., Verdonschot R.G., Hasegawa Y., Murakami S. Comparison of T2 values of the displaced unilateral disc and retrodiscal tissue of temporomandibular joints and their implications. Scientific Reports Vol.14 No.1 (2024). doi:10.1038/s41598-024-52092-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/95570
Title
Comparison of T2 values of the displaced unilateral disc and retrodiscal tissue of temporomandibular joints and their implications
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
Unilateral anterior disc displacement (uADD) has been shown to affect the contralateral joints qualitatively. This study aims to assess the quantitative T2 values of the articular disc and retrodiscal tissue of patients with uADD at 1.5 Tesla (T). The study included 65 uADD patients and 17 volunteers. The regions of interest on T2 maps were evaluated. The affected joints demonstrated significantly higher articular disc T2 values (31.5 ± 3.8 ms) than those of the unaffected joints (28.9 ± 4.5 ms) (P < 0.001). For retrodiscal tissue, T2 values of the unaffected (37.8 ± 5.8 ms) and affected joints (41.6 ± 7.1 ms) were significantly longer than those of normal volunteers (34.4 ± 3.2 ms) (P < 0.001). Furthermore, uADD without reduction (WOR) joints (43.3 ± 6.8 ms) showed statistically higher T2 values than the unaffected joints of both uADD with reduction (WR) (33.9 ± 3.8 ms) and uADDWOR (38.9 ± 5.8 ms), and the affected joints of uADDWR (35.8 ± 4.4 ms). The mean T2 value of the unaffected joints of uADDWOR was significantly longer than that of healthy volunteers (P < 0.001). These results provided quantitative evidence for the influence of the affected joints on the contralateral joints.