Preoperative and postoperative assessment of temporal and masseter muscle size with magnetic resonance imaging in patients undergoing unilateral temporomandibular joint surgery

Balaban, Emre; Yilmaz, Onur; Timarcioglu, Goksel; Bahran, Utku; Çandırlı, Celal; Koşucu, Polat

doi:10.1016/j.jcms.2021.02.013

Cited by 4 publications

(4 citation statements)

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“…In addition, a small number of patients can also be accompanied by temporal tenderness, dizziness, tinnitus, and other symptoms. The etiology is complex, and the pathogenesis is not fully understood, which may be related to trauma (such as external force impact, biting hard objects, and excessive mouth opening), occlusal disorders, or mental factors [ 16 , 17 ]. At present, the imaging methods of TMD include X-ray, CT, MRI, arthroscopy, curved tomography, and so on.…”

Section: Discussionmentioning

confidence: 99%

“…When there is articular cavity effusion or slight forward movement of the articular disc in the temporomandibular joint and the articular disc is displaced to the medial or lateral region, ultrasound is easy to demonstrate blurred images. And ultrasound imaging ability of bone tissue is not good, so it cannot make a clear and effective diagnosis and can even lead to misdiagnosis or missed diagnosis [ 17 ]. Although CT can clearly demonstrate the bone structure and articular cartilage, a series of pathological changes such as edema of lateral pterygoid muscle, bone marrow edema of condyle, degeneration of the articular disc, injury, and displacement cannot be clearly demonstrated.…”

Section: Discussionmentioning

confidence: 99%

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Clinical Manifestations, Imaging Features, and Pathogenic/Prognostic Risk Factors for Temporomandibular Disorders (TMD): A Case-Control Study Based on Psychogenic Factors of Patients

Shao

Deng

2022

Computational and Mathematical Methods in Medicine

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Objective. To survey the clinical manifestations and imaging features of temporomandibular disorders (TMD) and analyze the risk factors for pathogenesis/prognosis through a case-control study based on psychogenic factors of patients. Methods. According to the inclusion criteria, 200 adult patients were randomly enrolled from the maxillofacial department of our hospital from January 2020 to May 2021, including 100 patients with TMD as the study group and 100 healthy patients as the control group. The study group can be assigned into four subgroups according to their clinical manifestations: (1) articular area or/and masticatory muscle pain group, (2) mandibular movement abnormality group, (3) joint murmur group, and (4) two or more symptom groups. Based on the study of psychogenic factors of patients, the clinical manifestations and imaging features of TMD were determined, and the risk factors for pathogenesis/prognosis were analyzed. Results. The distribution of psychological status in the TMD group was higher than that in the control group ( P < 0.05 ). The distribution of anxiety, depression, and somatic symptoms in the TMD group was significantly different from that in the control group ( P < 0.05 ). Anxiety, depression, and somatic symptoms were the risk factors for TMD. Compared with the control group, the incidence of abnormal MRI images in patients with temporomandibular disorders was significantly different ( P < 0.05 ). There were significant differences in psychological status (anxiety, depression, and somatic symptoms) among the three groups ( P < 0.05 ). Anxiety, depression, and somatic symptoms were the risk factors for abnormal mandibular movement and joint tremor and murmur ( P < 0.05 ). Somatic symptoms were the risk factors for various clinical symptoms of TMD ( P < 0.05 ). Depression was the risk factor for pain ( P < 0.05 ). Conclusion. In patients with TMD, MRI can early identify disc abnormalities and other related imaging features, which is helpful for more comprehensive clinical evaluation and treatment of TMD patients. There exhibits no significant difference in psychological status (anxiety, depression, and somatic symptoms) of patients with different clinical symptoms, and abnormal psychological status may be one of the risk factors leading to different clinical symptoms and development of different types of TMD patients.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Clinical Manifestations, Imaging Features, and Pathogenic/Prognostic Risk Factors for Temporomandibular Disorders (TMD): A Case-Control Study Based on Psychogenic Factors of Patients

Shao

Deng

2022

Computational and Mathematical Methods in Medicine

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“…Temporomandibular disorders (TMDs) are highly prevalent and have has a predominance in young adults and female individuals, although children and adolescents can also be affected 1,2 . Typical symptoms include pain with or without functional limitations such as impaired mouth opening 3,4 …”

mentioning

confidence: 99%

“…1,2 Typical symptoms include pain with or without functional limitations such as impaired mouth opening. 3,4 For patients with persistent symptoms of the temporomandibular joint (TMJ), magnetic resonance imaging (MRI) is commonly performed owing to its excellent soft tissue contrast, high spatial resolution, and the possibility of dynamic examination. 5 Especially, detailed evaluation of disc morphology (DM), disc position (DP), and osseous joint morphology (OJM) can be characterized.…”

mentioning

confidence: 99%

MRI of Temporomandibular Joint Disorders: A Comparative Study of 0.55 T and 1.5 T MRI

et al. 2024

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Objectives Temporomandibular disorders (TMDs) are common and may cause persistent functional limitations and pain. Magnetic resonance imaging (MRI) at 1.5 and 3 T is commonly applied for the evaluation of the temporomandibular joint (TMJ). No evidence is available regarding the feasibility of modern low-field MRI for the assessment of TMDs. The objective of this prospective study was to evaluate the image quality (IQ) of 0.55 T MRI in direct comparison with 1.5 T MRI. Materials and Methods Seventeen patients (34 TMJs) with suspected intraarticular TMDs were enrolled, and both 0.55 and 1.5 T MRI were performed on the same day. Two senior readers independently evaluated the IQ focusing on the conspicuity of disc morphology (DM), disc position (DP), and osseous joint morphology (OJM) for each joint. We analyzed the IQ and degree of artifacts using a 4-point Likert scale (LS) at both field strengths. A fully sufficient IQ was defined as an LS score of ≥3. Nonparametric Wilcoxon test for related samples was used for statistical comparison. Results The median IQ for the DM and OJM at 0.55 T was inferior to that at 1.5 T (DM: 3 [interquartile range {IQR}, 3–4] vs 4 [IQR, 4–4]; OJM: 3 [IQR, 3–4] vs 4 [IQR 4–4]; each P < 0.001). For DP, the IQ was comparable (4 [IQR 3–4] vs 4 [IQR 4–4]; P > 0.05). A sufficient diagnostic IQ was maintained for the DM, DP, and OJM in 92% of the cases at 0.55 T and 100% at 1.5 T. Minor image artifacts (LS score of ≥3) were more prevalent at 0.55 T (29%) than at 1.5 T (12%). Conclusions Magnetic resonance imaging of the TMJ at 0.55 T yields a lower IQ than does MRI at 1.5 T but maintains sufficient diagnostic confidence in the majority of patients. Further improvements are needed for reliable clinical application.

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Intraobserver reliability and validity of a single ultrasonic measurement of the lateral condyle-capsule distance in the temporomandibular joint

Delgado-Delgado,

Conde-Vázquez,

Fall

et al. 2023

J Ultrasound

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Purpose The purpose of the study was to examine the reliability and validity of a single lateral condyle-capsule distance (LCCD) measurement while saving on economic costs and clinical resources. Methods A longitudinal test–retest design was used to assess the reliability and validity of single-examiner measures over 72 TMJ sonographic analyses. Intraclass correlation coefficients (ICC) and a Bland–Altman plot were used to study reliability and validity, comparing the first measurement of the LCCD to the mean of 3 measurements taken one week later by the same examiner. Results ICC show intraobserver reliability of 0.981, 95% confidence intervals (CI) of 0.969 to 0.988. The mean difference between the ultrasound measurements is 0.019 mm (95% CI 0.0005–0.0383) with a standard deviation of 0.080 mm, demonstrating robust validity. The 95% Limits of Agreement (LoA) are − 0.138 for the lower limit and 0.177 for the upper. Mean relative error is 0.009 mm. Conclusion Intraobserver reliability of a trained examiner is very high in the single measurement of the LCCD and validity is significant compared to more complex methods. The risk of bias is low since the mean of three LCCD measurements is calculated as opposed to recording only one single measurement.

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Preoperative and postoperative assessment of temporal and masseter muscle size with magnetic resonance imaging in patients undergoing unilateral temporomandibular joint surgery

Cited by 4 publications

References 30 publications

Clinical Manifestations, Imaging Features, and Pathogenic/Prognostic Risk Factors for Temporomandibular Disorders (TMD): A Case-Control Study Based on Psychogenic Factors of Patients

Clinical Manifestations, Imaging Features, and Pathogenic/Prognostic Risk Factors for Temporomandibular Disorders (TMD): A Case-Control Study Based on Psychogenic Factors of Patients

MRI of Temporomandibular Joint Disorders: A Comparative Study of 0.55 T and 1.5 T MRI

Intraobserver reliability and validity of a single ultrasonic measurement of the lateral condyle-capsule distance in the temporomandibular joint

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