Clinical study of magnetic resonance imaging-based texture analysis and fasciculation of the lateral pterygoid muscle in young patients with temporomandibular disorder

Luo, Dan; Qiu, Cheng; Zhou, Ruizhi; Shan, Tao; Yan, Wenjing; Yang, Jianjun

doi:10.1016/j.oooo.2023.05.002

Cited by 1 publication

(2 citation statements)

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“…However, in the inflammatory state, muscle tissue is infiltrated by inflammatory cells, along with local muscle tissue edema, which can reduce the texture complexity of the muscle tissue and render the texture unclear and the local gray scale more similar (Herlidou et al, 1999). In a previous study, the TA parameters of the LPM were correlated with the articular disk displacement in patients with TMD (Luo et al, 2023b). When patients with TMD experienced TMJ clicking, the LPM texture was blurred, and the local texture was more similar, which may be caused by the inflammation of the LPM.…”

Section: Consistency Of the Resultsmentioning

confidence: 99%

“…The three stomatologists outlined the regions of interest with the freehand selection method, including as much of the LPM as possible and avoiding the surrounding structures. Then, they collected data on the five TA parameters ( Figure 4 ) ( Luo et al, 2023a ). The radiologists obtained one measurement each, and the average value of the measurements was used for statistical analyses.…”

Section: Methodsmentioning

confidence: 99%

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Anatomical factors influencing temporomandibular joint clicking in young adults: temporomandibular joint structure disorder or lateral pterygoid muscle dysfunction?

Luo,

Yang,

Yuan

et al. 2024

Front. Bioeng. Biotechnol.

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Objective: This study aimed to investigate the selected anatomical factors that can potentially influence temporomandibular joint (TMJ) clicking in young adults by assessing TMJ structures and lateral pterygoid muscle (LPM) function using magnetic resonance imaging (MRI).Methods: The patients were divided into four groups: the healthy control group; the clicking on mouth opening group; the clicking on mouth closing group; and the clicking on mouth opening and closing group. Additionally, we used clinical palpation to evaluate the masticatory muscles' functional state and employed MRI using the OCOR-T1WI-FSE-CLOSED, OSAG-PDW-FSE-CLOSED, and OSAG-PDW-FSE-OPEN sequences to analyze the texture of the lateral pterygoid muscle (LPM).Results: The proportion of any articular disc or condylar morphology class did not differ significantly between the TMJ clicking and HC groups. The articular disc position did not differ significantly between the TMJ clicking and HC groups. In the TMJ clicking group, the presence of masticatory muscle dysfunction differed significantly between the clicking and non-clicking sides. Moreover, the LPM accounted for the highest proportion among masticatory muscles with tenderness in all TMJ clicking subgroups (77.78%–100%). Therefore, in the TMJ clicking group, the LPM texture was less defined, more uniform in gray scale, and more similar to local texture (p < 0.0001).Conclusion: The occurrence of TMJ clicking in young adults is unrelated to the TMJ structure but related to the function of masticatory muscles, particularly the LPM.

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Section: Consistency Of the Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%